HNP-12-029, NPDES Permit Application Modification Request

NPDES Permit Application Modification Request

ML12061A048
Person / Time
Site:	Harris
Issue date:	02/27/2012
From:	Corlett D H Progress Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
HNP-12-029
Download: ML12061A048 (272)

Text

9,0 Progress Energy FEB 2'7 2012' SERIAL: HNP-12-029 United States Nuclear Regulatory Commission ATTENTION:

Document Control Desk Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO. 50-400/RENEWED LICENSE NO. NPF-63 NPDES PERMIT APPLICATION MODIFICATION REQUEST Ladies and Gentlemen:

In accordance with Section 3.2 of the Environmental Protection Plan (Nonradiological) issued as Appendix B to Facility Operating License No. NPF-63 for the Harris Nuclear Plant, Carolina Power & Light Company, doing business as Progress Energy Carolinas, Inc., is providing a copy of the request for a modification to the application for renewal of the facility's National Pollutant Discharge Elimination System (NPDES) Permit # NC0039586 as forwarded to the North Carolina Department of Environment and Natural Resources dated February 21, 2012. A copy of the initial permit renewal application was previously transmitted to the NRC by letter dated January 31, 2011.If you have any questions regarding this submittal please contact me at (919) 362-3137.Sincerely, David H. Corlett Supervisor, Licensing/Regulatory Programs Harris Nuclear Plant DHC/mgw Enclosure c: Mr. J. D. Austin (NRC Senior Resident Inspector, HNP)Ms. A. T. Billoch Col6n (NRC Project Manager, HNP)Mr. V. M. McCree (NRC Regional Administrator, Region II)Progress Energy Carolinas, Inc.Harris Nuclear Plant P. 0. Box 165 New Hill, NC 27562 Document Control Desk SERIAL: HNP-12-029 Enclosure NPDES PERMIT APPLICATION MODIFICATION REQUEST Progress Energy EB 2 1 2012 SERIAL: HNP-12-022 Mr. Jeffrey 0. Poupart North Carolina Department of Environment and Natural Resources Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617

Subject:

Carolina Power & Light Company, doing business as Progress Energy Carolinas, Inc.Hamrs Nuclear Plant NPDES Permit No. NC0039586 Application Modification Request

Dear Mr. Poupart:

By submittal of this letter, Progress Energy Carolinas, Inc. is amending the subject current NPDES permit as well as the permit application filed on January 27, 2011. This amendment has a dual purpose: 1) to include the construction of a sand filter at the sewage treatment plant (Outfall 002)to help alleviate recent TSS issues in the plants discharge, and 2) to facilitate a corporate move from predominately GE Water chemical products to predominately Nalco chemical products (although we will still use some GE Water products).

The replacement products contain essentially the same chemical composition with the main difference being the vendor from which the chemicals are purchased.

The following is a list of the'new chemicalsi and the chemicals they are replacing.

Nalco Chemical (New) GE Betz Chemical (Replaced)

Quantity Frequency Purpose Nalco 71D5 Plus GE Betz FOAMTROL 1440 100 gal/yr As Needed Foam Control Agent Nalco 7384 GE Betz Flogard MS6208 1800 gal/yr As Needed Corrosion Control Nalco 3DT 179 GE Betz Depositrol PY5200 7000 gal/yr As Needed Corrosion.

Control Nalco 3DT 190 GE Betz Depositrol BL 5325 8000 gal/yr As Needed Deposit Control Nalco 3DT 197 GE Betz Inhibitor 6000 gal/yr As Needed Corrosion Control AZ 8104 Nalco 73550 or 73551 GE Betz Spectrus BD 1500 Varies As Needed Biodispersant Nalco 3DTI185 GE Betz Flogard MS6222 9000 gal/yr As Needed Corrosion Control Nalco 8103 PLUS GE Betz Klaraid PC 1192 600 gal/yr As Needed Settling Agent Nalco TRAC 104 Sodium or Potassium 100-200 gal/yr As Needed Corrosion Control Molybdate Nalco TRAC 102 Sodium or Potassium Nitrate 50-100 gal/yr As Needed Corrosion Control Nalco PC-33 GE Betz Kleen MCT-51 1. 200-400 gal/yr As Needed, System Cleaning Nalco PC-87 GE Betz Kleen MCT-103 200-400 gal/yr As Needed System Cleaning Progress Energy Carolinas, Inc.Harris Nuclear Plant P. 0 Box 165 New Hill NC 27562 Division of Water Quality SERIAL: HINP-12-022 Nalco 7408 GE Betz DCL-32 400-800 gal/yr As Needed Chlorine Removal Nalco PC-191 or PC- GE Betz Hypersperse MDC-700 200-400 gal Daily Membrane Deposit Control 191T Nalco 7390 GE Flogard POT 802 Zinc 200-400 gal Daily Corrosion Control phosphate Nalco H-130 GE Betz Spectrus 1300 1440 gal As Needed Non-oxidizing Biocide Nalco H-550 5 gal As Needed Biocide Nalco CB70 16,000 gal Daily Chlorination Enhancement Enclosed with this submittal is 1) an updated Attachment 4 of EPA Form 2C reflecting the inclusion of the sand filter at the sewage treatment plant (Outfall 002), 2) an updated Attachment 5 of EPA Form 2C Potential Discharges Not Covered By Analysis, and 3) the MSDS for each of these new products.

A biocide 101 worksheet was not included for Nalco H-550, because there is a toxicity testing requirement at Outfall 006 where the waste water that would contain these chemicals discharges into Harris Lake. We will gladly assist should additional questions arise.If you have further questions, please feel free to contact Steve Cahoon at (919) 546-7457 or steve.cahoon ,pgnmail.com.

I certify, under penalty of law, that this document and all attachments were prepared under my.direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief true, accurate, and complete.

I am aware that there are significant penalties for submitting false information, including the possibility offines and imprisonment for knowing violations.

Sincerely, Ernest J. Kapopoulos, Jr.Plant General Manager Harris Nuclear Plant EJK/mgw Enclosures Division of Water Quality SERIAL: HNP-12-022 Enclosure 1 Attachment 4 -Form 2C (Updated)

Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 Attachment 4 Form 2C -Item 1I-B Flows, Sources of Pollution, and Treatment Technologies HARRIS NUCLEAR PLANT The Harris Nuclear Plant (HNP) consists of a 900 MW generating unit and associated facilities.

The HNP systems include a Westinghouse pressurized water reactor, three re-circulating steam generators, a turbine generator, a one-pass condenser, an open re-circulating (cooling tower)cooling water system, and a lake to makeup water lost by evaporation.

In a pressurized water reactor design, steam is produced in the secondary system steam generators using hot water from the reactor core. The primary system does not normally come into contact with any other part of the generating system, such as the steam cycle which includes the turbine and the condenser.

Outfall 006 -Combined Outfall to Harris Lake The HNP operates on an open re-circulating cooling system using a natural draft cooling tower and 4100 acre makeup water storage reservoir.

All five major wastewater discharges at the HNP are combined in a 36-inch diameter common pipe which discharges to the Harris Lake 500 feet offshore at 40 feet below the surface (Discharge Serial No. 006 in this application.)

The individual waste streams contributing to the common outfall pipe are: cooling tower blowdown, sanitary waste treatment plant effluent, metal cleaning wastes, low-volume wastes, and radwaste system. (These waste streams are enumerated in the present permit as Discharge Serial Numbers 001, 002, 003, 004, and 005, respectively.)

Toxicity testing has been conducted on the combined outfall line since February 1990. Each of the waste streams, as well as miscellaneous discharge points, are described in this narrative.

Also included is a list of chemicals which are expected to be in waste streams from the HNP (Attachment 5).Outfall 001 -HNP Cooling Tower Blowdown discharge to Outfall 006 The cooling tower provides the condenser with a supply of water for removing the heat rejected by the condensation of steam. (The circulating water temperature rise across the condenser is 25 F.) This heat is dissipated primarily by evaporation as the water falls through the tower. This evaporation is essentially pure water vapor, with the dissolved and suspended solids remaining to concentrate.

To prevent the solids from causing scale and corrosion problems, some of the concentrated cooling water is discharged from the cooling tower basin, i.e., blowdown.

During plant operation, the cooling tower basin continuously discharges for optimum performance.

Blowdown currently averages approximately 6 MGD. Makeup water for cooling tower evaporative losses and cooling tower blowdown is provided from the main reservoir.

The cooling tower also serves as a partial source of service water, which is used for non-contact cooling of auxiliary equipment throughout the plant. The cooling tower is infrequently drained I Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 for maintenance.

The normal operating procedure includes draining the residual water to the lake via Discharge Serial No. 006.Occasionally, the condensers are drained for maintenance and repairs. When the condensers are drained, it is necessary to route the residual water (approximately 60,000 gallons per condenser per event) to area storm drains which discharge to the lake. This water is monitored prior to discharge for appropriate parameters required for cooling tower blowdown in accordance with the NPDES permit. Presently, condenser draining events are reported with relevant monitoring data to DWQ on attachments to monthly Discharge Monitoring Reports.Outfall 002 -HNP Sewage Treatment Facility discharge to Outfall 006 A 0.025 MGD extended aeration sewage treatment facility serves the HNP. The facility consists of an equalization basin, aeration basin, sludge holding tanks, raw sewage holding tank, clarifiers, and chlorine contact tanks. Disinfected effluent is pumped through a newly installed sand filter (added to help with TSS issues) to common outfall pipe. Currently, sludge is land applied off site by a contract disposal firm (Granville Farms, Inc., Permit No. WQ0000838).

Because the HNP sewage treatment facility receives industrial type waste as well as domestic type waste, the land application of the mixed sludge meets the exemption conditions stipulated at 40 CFR Part 503.6.In addition to sanitary waste, HVAC condensate is discharged to the sewage treatment facility.Outfall 003 -HNP Metal Cleaning Wastes discharge to Outfall 006 Infrequently, cleaning of heat exchanger equipment by chemical solutions may be necessary.-

Cleaning solutions would be routed to the waste neutralization basin for pH adjustment (or other chemical neutralization) prior to discharge to the settling basin where further treatment by sedimentation occurs. To date, the only metal cleaning which has been conducted was a preoperational flush. If a new system is added in the future or if an existing system is changed out, flushing could be necessary again. Also, metal cleaning may be needed in the future for plant systems (e.g., steam generators, auxiliary boilers, piping, etc.). Chemical solutions used may include phosphates, organic cleaners, citric acid, or oxalic acid.Outfall 004 -HNP Low-Volume Wastes discharge to Outfall 006 In the operation of the HNP, there are many processes which result in intermittent low volumes of various waste streams. Low-volume waste is treated by neutralization (for pH adjustment), sedimentation, and separation.

These wastes may be treated in the oily waste separator and/or neutralization basin as needed prior to routing to the sedimentation basin, which ultimately discharges to the common outfall line. Annually as a maintenance practice this basin may be 2 Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 physically cleaned using chlorine, a bisulfate is added after cleaning to remove the chlorine before discharge.

Chemicals present in these systems may include corrosion products (such as copper and iron) corrosion inhibitors (such as nitrites, molybdates, ammonia, hydrazine, carbohydrazide, and ethanolamine), acids and bases from water treatment processes, and wastewater from ion exchange processes and ammonium bisulfite from dechlorination.

Low-volume waste flow from the settling basin averages approximately 0.2 MGD. The various low-volume waste sources are described below: a) Water treatment system wastes from processing of demineralized water and potable water.(The water treatment system includes coagulation, filtration, disinfection, and ion exchange.

Wastes from treatment include filter backwash and demineralizer regeneration wastes.)b) Non-radioactive oily waste, floor drains, and chemical tank containment drains.(Turbine building wastes which could contain oil are routed to the oily waste separator for treatment prior to routing to the neutralization basin. Used oil is collected by a contractor for reclamation.)

c) Steam generator and auxiliary boiler draining following wet layup d) Non-radioactive secondary waste from condensate polishers e) Miscellaneous drains/leaks from condenser, steam generator, and secondary components f) Auxiliary boiler system blowdown g) Miscellaneous waste streams not otherwise identified elsewhere in this application.

Outfall 005 -HNP Radwaste Treatment System discharge to Outfall 006 The radwaste system is designed to collect, store, process, and release any radioactive or potentially radioactive liquids associated with operation of the nuclear power plant. The waste streams are collected in tanks and sampled for conventional pollutants and radioactivity.

The specific batch treatment is selected based on these analytical results. This allows for selection of the proper treatment processes for each individual batch. Most radwaste streams are treated by the Modular Fluidized Transfer Demineralization System (MFTDS) that uses filtration and ion exchange in a manner that minimizes the production of solid wastes. Boric acid is recycled.

The secondary waste system (SWS) is for treating radioactively-contaminated water from the secondary steam cycle system; however, since that system is not normally contaminated, those flows are routed to the normal low-volume waste treatment system after radiological monitoring.

3 Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 After treatment, the radwaste flows are stored in one of four tanks: the secondary waste sample tank, the treated laundry and hot shower tank, the waste monitor tank, or the waste evaporator condensate tank. After monitoring to verify adequate treatment, the tanks are discharged to the common outfall line.The cooling tower bypass line provides a flow of lake water for radwaste releases, as regulated by the NRC.Other HNP Discharges I, Storm Drains Runoff from parking lots, outside storage areas, roof drains, and other areas on the plant site are collected in storm drains and ultimately routed to release points which discharge to Harris Lake. Flow contributed from those areas is estimated at 8.8 million gallons per month, based on average rainfall of 43 inches per year and a runoff assumption factor of 0.7.In addition to stormwater, a few miscellaneous sources of water are also intermittently routed to the storm drains. These sources that have a minor contribution to overall storm drain flows are as follows: a. Upflow filter clear well drains The upflow filter clearwell stores filtered lake water which is used in the potable water treatment system. Periodically, some of the water from this tank is drained to the storm drains that discharge to Harris Lake. This water may contain low concentrations of chlorine because sodium hypochlorite is added to control biological growth in the tank prior to treatment through the upflow filter.b. Heat exchanger on the demineralizer feedwater It is necessary to heat the source water to the demineralized water treatment system to achieve optimum degassification.

To accomplish this, steam is used to heat the feedwater.

The condensed steam is discharged to the storm drains that flow to Harris Lake at approximately 5 -10 gallons per minute. This steam could contain trace amounts of hydrazine and ammonia used for chemistry control in the auxiliary boiler steam system. Due to the low flow rate and the long retention time, the temperature of the condensed steam should be at ambient temperature upon reaching the lake.c. Condenser water box drains 4 Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 Prior to condenser maintenance or repairs it is sometimes (approximately twice/year) necessary to drain circulating water to the storm drains (approximately 60,000 gallons per condenser per event) that discharge to Harris Lake. This water is monitored for selected cooling tower blowdown parameters.

d. Filtered water storage tank Water from the upflow filter clearwell is treated using a micro-filtration unit for turbidity control and then stored in a tank prior to subsequent filtration (nano-filtration unit) and disinfection.

Occasionally, some water from this tank may be drained to the storm drains that discharge to Harris Lake. This water may contain trace amounts of chlorine.e. Fire protection system Approximately 5000 gallons of lake water used for annual testing of the fire protection system is routed to most of the storm drains that discharge to Harris Lake. In the event of a fire, additional water could be discharged to storm drains.f. Condenser hotwell During outages (approximately once per 18 months) it is necessary to drain the condenser hotwell for condenser maintenance and inspection.

Approxmiately 70,000 gallons of this water resulting from condensed steam is drained to storm drains that discharge to Harris Lake. It may contain trace amounts of ethanolamine, 100 ppb or less of boron, and 100 ppb or less ammonia.g. Condensate storage tank Infrequently it is necessary to drain the condensate storage tank for maintenance.

Approximately 400,000 gallons per event is drained to storm drains that discharge to Harris Lake. It may contain 200 ppb or less boron, 1000 ppb or less ammonia, and trace hydrazine.

h. Air conditioning system condensate The condensate from various building air conditioning systems flows to various storm drains to Harris Lake. The volume is generally low and is greatest in the humid summer months.Service water system strainers Infrequently, when service water strainers located at the makeup pumps from the 5 Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 cooling tower basin are backwashed to remove biofouling organisms or debris, a small volume of service water overflows the basin and runs to the adjacent storm drain that discharge to Harris Lake.j. Maintenance Activities During maintenance activities at the facility it may become necessary to drain all or some portion thereof of the following plant systems; normal service water, emergency service water, circulating water, potable water, and demineralized water. Maintenance activities at the facility may also require the hydrostatic flushing of system piping with discharge to the storm drain system. In addition, the facility may find it necessary to wash equipment with demineralized water with the discharge to storm drains 2. Emergency Service Water System This system primarily provides non-contact cooling water for nuclear safety-related equipment systems and during emergency conditions.

The emergency service water system discharges to the auxiliary reservoir which is used as the plant"s heat sink during emergency conditions, a feature required by Nuclear Regulatory Commission regulations to provide a reliable supply of cooling water. Under normal operating conditions, the auxiliary and the main reservoirs are isolated from each other; however, the reservoirs may be connected as necessary.

In addition to emergency situations, this system is used periodically for testing purposes or for containment cooling as needed. This water may contain traces of chemicals identified for the cooling tower blowdown.6 Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 HARRIS ENERGY & ENVIRONMENTAL CENTER The Harris Energy & Environmental Center (HE&EC) includes facilities that provide support services (laboratories and training classrooms) for the HNP and other CP&L operations.

The sources of wastewater at the HE&EC are domestic waste, conventional laboratory waste, cooling tower blowdown, and potentially radioactive liquid waste from the radiochemistry and metallurgy laboratories.

Additionally, floor drains from several shops and storage buildings are routed to the wastewater treatment facility.

All waste streams, with the exception of the radiological wastewater, receive treatment in the 0.020 MGD wastewater facility.Components of the treatment facility include a bar screen, submersible pump station as an influent pump station, three treatment ponds, sand filtration, chlorination and dechlorination, as well as the various lift stations for the HE&EC's various buildings.

The pond portion of the treatment facility consists of an aerated pond with a minimum retention time of 10 days followed by a stabilization pond, also with a minimum retention time of 10 days. The third pond is a polishing pond with a minimum 2-day retention time. Effluent from the treatment facility is discharged via the effluent discharge pipe into Harris Lake.If necessary sludge from the treatment facility will be removed and land applied by a contractor (a contractor for sludge disposal will be chosen when needed). Because the treatment facility receives industrial type waste as well as domestic type waste, the land application of the mixed sludge meets the exemption conditions stipulated as 40 CFR 503.6 Domestic Waste The maximum domestic waste flow from the HE&EC sanitary facilities is approximately 0.014 MGD. In addition to the approximately 235 permanent employees on the site, the HE&EC, serving as a company training facility and as a visitors' center for the nearby Harris Nuclear Plant, accommodates a fluctuating population (ranging from 0 to 450 additional people per day).Laboratory Waste Laboratory waste flow, consisting primarily of rinse water from the chemical, metallurgical, and biological laboratories, is approximately 0.001 MGD. HE&EC personnel are educated in the proper disposal of laboratory wastes and are encouraged to minimize the use of laboratory drains for chemical disposal.

Most laboratory chemical wastes and virtually all oily wastes are drummed for off-site disposal.

Laboratory wastes that are not drummed may go to one of two 5,000 gallon holding/neutralization tanks for visual inspection and testing before being discharged to the influent pump station.Cooling Tower Blowdown Cooling tower blowdown from the HE&EC air conditioning system averages approximately 0.002 MGD. Chemical additives include an algicide (aqueous glutaraldehyde solution) and a 7 Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 suspension agent. The treatment and extended retention time in the ponds should ensure no algicide is discharged to Harris Lake.Radiological Wastewater The majority of the radiological wastewater results from the cleaning of laboratory glassware.

In addition, small quantities of liquid radiochemistry laboratory samples, radioactive metallurgy laboratory wastewater (which is prefiltered with a paper cartridge to remove particulates before disposal), liquids generated from analyses of plant 10 CFR Part 61 samples, and reagents are disposed via the HE&EC radiochemistry laboratory drains to a holding tank. Approximately 5,000 gallons are discharged annually from the holding tank, as allowed by the radioactive materials License No. 092-0218-4, issued by the N.C. Division of Radiation Protection.

The effluent from the radiological holding tank combines with the effluent from the sewage treatment plant and discharges into Harris Lake.Radiochemical analyses are performed prior to release to calculate the total activity in the waste.These analyses include gamma spectrum analysis using intrinsic germanium gamma spectrometry systems, as well as direct analysis for Tritium, Iron-55, Nickel-63 and Strontium-89/90. Individual radionuclides have different release limits, however, the total Tritium activity discharged per calendar year shall not exceed 20 millicures, and the total activity excluding Tritium discharge per calendar year shall not exceed 5 millicuries.

Additionally, the pH of the wastewater is determined before release. The pH must be between six and nine and is adjusted, if necessary, using 50% sodium hydroxide.

The tank is agitated after addition of the sodium hydroxide, and an additional sample is analyzed to verify that the appropriate pH adjustment is achieved.Stormwater Stormwater runoff from the HE&EC is composed of parking lot, roof, and lawn drainage.

This non-industrial stormwater is not subject to the Phase I stormwater regulations of 40 CFR Part 122.8 Division of Water Quality SERIAL: HNP- 12-022 Enclosure 2 Attachment 5 -Form 2C (Updated)

Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 Attachment 5 Form 2C -Item VI Potential Discharges Not Covered By Analysis Chemical Quantity Frequency Purpose (used per year, estimate)Ammonia 2000 gallons As needed pH control Ammonium Bisulfite 12,000 gallons Daily C1 2 removal BETZ FOAMTROL 100 gallons As needed Foam control agent 1440 BETZ Flogard MS6208 1800 gallons As needed Corrosion control BETZ Depositrol 7000 gallons As needed Corrosion control PY5200 or BL 5325 BETZ Inhibitor AZ 7000 gallons As needed Corrosion control 8104 BETZ Spectrus BD Amount varies depending As needed Corrosion control 1500 on biological activity and temperature of makeup water BETZ Flogard MS 9000 gallons As needed Corrosion control 6222 BETZ Polymer 1192 600 gallons As needed Corrosion control Boron 13,000 lbs As needed Reactivity control Detergent and Waxes 300 -400 gallons Weekly Housekeeping Ethanolamine 7000 gallons Daily Corrosion control Hydrazine i 000 gallons Daily Corrosion control Polyelectrolytes 200 -300 gallons As needed Water treatment Sodium Carbonate or 200 -300 lbs As needed pH adjustment Bicarbonate Sodium hypochlorite Amount varies depending 2 to 3 times / Day Biocide (15% solution) on biological activity and temperature of makeup water Sodium hydroxide 1,106,800 lbs As needed pH control and resin (50%) regeneration Sodium or Potassium 100 -200 gallons As needed Corrosion control Molybdate Sodium EDTA 100 -200 gallons As needed Corrosion control Sodium or Potassium 500 lbs As needed Corrosion control Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Numler NC0039586 Nitrite Sulfuric Acid 815,000 lbs As needed pH control and resin regeneration Potassium 200-400 gallons Daily Iron Control Permanganate 50% Citric Acid 200-400 gallons As needed System Cleaning Carbohydrazide As needed Corrosion Control GEBetz AD-20 200-400 gallons As needed System Cleaning GEBetz AK- 110 200 -400 gallons As needed System Cleaning GEBetz Kleen MCT- 200- 400 gallons As needed System Cleaning 511 GEBetz Kleen MCT- 200-400 gallons As needed System Cleaning 103 GEBetz DCL-32 200-400 gallons Daily Chlorine Removal GEBetz Hypersperse 200-400 gallons Daily Membrane Deposit MDC-700 Control GEBetz Flogard POT 200-400 gallons Daily Corrosion Control 80L Zinc Phosphate GEBetz Spectrus 1300 1440 gallons Daily Non-oxidizing Biocide GEBetz DT 1401 2700 gallons Daily Buffering Agent Potassium Persulfate 100 gallons Daily Analyzer Reagent 0.6 M Phosphoric Acid 100 gallons Daily Analyzer Reagent 0.6 M Nalco 71D5 Plus 100 gal/yr As Needed Foam Control Agent Nalco 7384 1800 gal/yr As Needed Corrosion Control Nalco 3DT 179 7000 gal/yr As Needed Corrosion Control Nalco 3DT 190 8000 gal/yr As Needed Deposit Control Nalco 3DT 197 6000 gal/yr As Needed Corrosion Control Nalco 73550 or 73551 Varies As Needed Biodispersant Nalco 3DT185 9000 gal/yr As Needed Corrosion Control Nalco 8103 PLUS 600 gal/yr As Needed Settling Agent Nalco TRAC 104 100-200 gal/yr As Needed Corrosion Control Nalco TRAC 102 50-100 gal/yr As Needed Corrosion Control Nalco PC-33 200-400 gal/yr As Needed System Cleaning Nalco PC-87 200-400 gal/yr As Needed System Cleaning 2 Progress Energy Carolinas, Inc.Harris Nuclear Plant and Harris Energy & Environmental Center National Pollutant Discharge Elimination System Permit Number NC0039586 Nalco 7408 400-800 gal/yr As Needed Chlorine Removal Nalco PC- 191 or PC- 200-400 gal Daily Membrane Deposit 191T Control Nalco 7390 200-400 gal Daily Corrosion Control Nalco H-130 1440 gal As Needed Non-oxidizing Biocide Nalco H-550 5 gal As Needed Biocide Nalco CB70 16,000 gal Daily Chlorination Enhancement 3

Division of Water Quality SERIAL: HNP-12-022 Enclosure 3 New Chemicals MSDS Product Bulletin NALCO 71 D5 PLUS Oil-Based Antifoam PRODUCT DESCRIPTION AND APPLICATION NALCO 71D5 PLUS is a multipurpose hydrocarbon-based antifoam for use in industrial waste treatment, cooling tower, and process applications.

NALCO 71 D5 PLUS offers a stabilization package to lower the cloud point, improve stability at lower temperatures, and provide better freeze-thaw recovery.

NALCO 71 D5 PLUS is effective over a broad pH range and rapidly reduces foam.PHYSICAL & CHEMICAL PROPERTIES Refer to the Material Safety Data Sheet (MSDS), SECTION 9, for the most current data.Form: Density: Specific Gravity 77 0 F (25 0 C): Cloud Point: Pour Point: Freeze Point: Flash Point: Color: Viscosity (Neat) @ 77°F (25°C) #2 Spindle, 30 rpm: VOC (Calculated)

Vapor Pressure Liquid 7.0 lb/gal (12.0 KgIL)0.84 55-60°F (12.8-15.6-C) 35°F (1.67-C)< -22°F (-30oC)197-F (91.70C)Light yellow to gold 30 cp 75.8%5.1 mm Hg @ 100'F (37.8°C)ACTIVE CONSTITUENTS Mineral oil REGULATORY APPROVALS Refer to the Material Safety Data Sheet (MSDS), SECTION 15 for the most recent information on approvals.

NALCO 71D5 PLUS is not approved for use in potable water treatment MATERIALS OF COMPATIBILITY Compatible Not Compatible Brass Aluminum Coated steel drum(phenolic, RCC635) Carbon steel Plasite 4300 EDPM Plasite 4005 Hypalon Plasite 6000 Neoprene Plasite 7122 Polyethylene(tubing)

Polyurethane Polypropylene(tubing)

PVC, CPVC Vinyl Stainless steel 304 Stainless steel 316 Polyethylene (rigid)Polypropylene (rigid)Teflon Viton Buna-N Testing was completed as per ASTM standard methodology.

Should actual conditions vary from test conditions, compatibility may not be accurate.DOSAGE AND FEEDING As with all antifoams and defoamers, dosages will vary by the application and by current conditions.

On-site performance evaluations are necessary to ensure accurate and optimum product selection and performance.

Typical dosages are in the 5-100 ppm range.ENVIRONMENTAL AND TOXICITY DATA Refer to the product's Material Safety Data Sheet, SECTIONS 11 and 12, for all aquatic and mammalian information.

SAFETY AND HANDLING As with any chemical, NALCO 71D5 PLUS should be handled with responsible care. Ensure compliance with all local/plant safety & handling requirements.

Refer to the Material Safety Data Sheet (MSDS), SECTIONS 3 and 8, for the most current data.STORAGE Refer to the Material Safety Data Sheet (MSDS), SECTION 7, for the most current data.Keep containers closed and protect from frost. NALCO 711D5 PLUS will start to precipitate at temperatures below 13-15.5*C (55-60'F).

This may cause the formation of deposits.

The product is recoverable at room temperature (21°C, 70'F). Store the product at room temperature and mix the product at 21'C (70'F) if deposits are observed.

Freezing will not impair the product if it is properly reconstituted by agitating at room temperature.

Low temperatures should be avoided since viscosity increases and pumping problems can occur. Shelf life for NALCO 71D5 PLUS is up to 24 months at temperatures above freezing (-22°F, -30'C).Store separately from alkaline products and strong oxidising agents such as chlorine.REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION NALCO, the Logo and Tagline are trademarks of Nalco Company (5-14-2010)

All other trademarks are the property of their respective owners.Nalco Company, 1601 West Diehl Road, Naperville, Illinois 60563-1198 Subsidiaries and Affiliates in Principal Locations Around the World@2004 Nalco Company All Rights Reserved

)4NALCO SAFETY DATA SHEET (800) 424-9300 (24 Hours) CHEMTREC 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: NALCO 71D5 PLUS APPLICATION:

ANTIFOAM COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 2/2 FLAMMABILITY:

2/2 INSTABILITY:

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

Paraffin Wax Hydrotreated Light Distillate Straight Run Middle Distillate Polypropylene Glycol Aliphatic alcohol Aliphatic alcohol CAS NO 8002-74-2 64742-47-8 64741-44-2 25322-69-4 Proprietary Proprietary

% (wlw)0.0 1.0 10.0- 20.0 30.0- 60.0 5.0- 10.0 1.0- 5.0 1.0- 5.0 13. 1 HAZARDS IDENTIFICATION I**EMERGENCY OVERVIEW**

WARNING Combustible.

Repeated exposure may cause skin dryness or cracking.Keep away from heat. Keep away from sources of ignition -No smoking. Keep container tightly closed. Do not get in eyes, on skin, on clothing.

Avoid breathing vapor. Use with adequate ventilation.

Protect product from freezing.

Do not take internally.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of soap and water.Wear suitable protective clothing, gloves and eye/face protection.

Combustible Liquid; may form combustible mixtures at or above the flash point. Empty product containers may contain product residue. Do not pressurize, cut, heat, weld, or expose containers to flame or other sources of ignition.May evolve oxides of carbon (COx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin, Inhalation Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.1/12 SAFETY DATA SHEET NALCO PRODUCT NALCO 71D5 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Can cause moderate irritation.

SKIN CONTACT Frequent or prolonged contact with product may defat and dry the skin, leading to discomfort and dermatitis.

INGESTION:

Not a likely route of exposure.

May cause nausea and vomiting.

Can cause chemical pneumonia if aspirated into lungs following ingestion.

Can cause central nervous system depression.

There may be irritation to the gastro-intestinal tract.INHALATION:

Repeated or prolonged exposure may irritate the respiratory tract.SYMPTOMS OF EXPOSURE: Acute: Inhalation of high concentrations of organic solvents can cause nausea, dizziness, vomiting, stupor or unconsciousness.

Chronic: Frequent or prolonged contact with product may defat and dry the skin, leading to discomfort and dermatitis.

AGGRAVATION OF EXISTING CONDITIONS:

Skin contact may aggravate an existing dermatitis condition.

14. 1 FIRST AID MEASURES EYE CONTACT.Immediately flush eye with water for at least 15 minutes while holding eyelids open. Get medical attention.

SKIN CONTACT: Immediately wash with plenty of soap and water. If symptoms develop, seek medical advice.INGESTION:

Do not induce vomiting:

contains petroleum distillates and/or aromatic solvents.

If conscious, washout mouth and give water to drink. Get medical attention.

INHALATION:

Remove to fresh air, treat symptomatically.

If symptoms develop, seek medical advice.NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.2/12

) NALCO SAFETY DATA SHEET PRODUCT NALCO 71 D5 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 15. 1 FIRE FIGHTING MEASURES FLASH POINT: 197 -F / 92 °C (PMCC)EXTINGUISHING MEDIA: Alcohol foam, Carbon dioxide, Foam, Dry powder, Other extinguishing agent suitable for Class B fires, For large fires, use water spray or fog, thoroughly drenching the burning material.Water mist may be used to cool closed containers.

UNSUITABLE EXTINGUISHING MEDIA: Do not use water unless flooding amounts are available.

FIRE AND EXPLOSION HAZARD: Combustible Liquid; may form combustible mixtures at or above the flash point. Empty product containers may contain product residue. Do not pressurize, cut, heat, weld, or expose containers to flame or other sources of ignition.

May evolve oxides of carbon (COx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Ensure clean-up is conducted by trained personnel only. Ventilate spill area if possible.

Do not touch spilled material.

Remove sources of ignition.Stop or reduce any leaks if it is safe to do so. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Prevent material from entering sewers or waterways.

17. 1 HANDLING AND STORAGE HANDLING: Use with adequate ventilation.

Keep the containers closed when not in use. Do not use in locations where vapor is likely to travel to welding flames or arcs or to other hot surfaces.

Vapors are much heavier than air, this can result in uneven distribution.

Do not take internally.

Do not breathe vapors/gases/dust.

Do not get in eyes, on skin, on clothing.Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.3/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 71D5 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC STORAGE CONDITIONS:

Store away from heat and sources of ignition.

Store separately from oxidizers.

Store the containers tightly closed.Use proper grounding procedures.

Have appropriate fire extinguishers available in and near the storage area. Store in suitable labeled containers.

Connections must be grounded to avoid electrical charges. Keep at temperatures above 18'C 8. EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Category:

ppm mg/m3 Non-Standard Unit Oil Mist (Mist) OSHA ZI/PEL 5 Oil Mist (Inhalable fraction.)

ACGIH[TWA 5 Paraffin Wax Fume (Fume) ACGIHITWA 2 Polypropylene Glycol AIHA/WEEL/TWA 10 ENGINEERING MEASURES: The use of local exhaust ventilation is recommended to control emissions near the source. Laboratory samples should be handled in a fumehood.

Provide mechanical ventilation of. confined spaces.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section, the use of a half face filter mask or air supplied breathing apparatus is recommended.

A suitable filter material depends on the amount and type of chemicals being handled. Consider the use of filter type: Multi-contaminant cartridge.

with a Particulate pre-filter.

In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gauntlets is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

When handling this product, the use of overalls, a chemical resistant apron and rubber boots is recommended.

A full slicker suit is recommended if gross exposure is possible.EYE PROTECTION:.Wear chemical splash goggles.HYGIENE'RECOMMENDATIONS:

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.4/12

) NALCO SAFETY DATA SHEET PRODUCT NALCO 71 D5 PLUSI EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300(24 Hours) CHEMTREC HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Moderate 19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Light yellow ODOR Hydrocarbon SPECIFIC GRAVITY 0.84 @ 77 -F / 25 -C DENSITY 7.0 lb/gal SOLUBILITY IN WATER Insoluble VISCOSITY 10 cps @ 72 "F / 22.2 °C PRECIPITATION POINT 50 "F/10 °C POUR POINT -50 "F / -45 'C INITIAL BOILING POINT 270 "Ff132.2 'C VAPOR PRESSURE 5.1 mm Hg @ 100 'F / 37.8 "C Note: These physical properties are typical values for this product and are subject to change.10._ STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Heat and sources of ignition including static discharges.

Extremes of temperature Keep at temperatures above 18 'C MATERIALS TO AVOID: Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors. Bases Contact with strong alkalies (e.g.ammonia and its solutions, carbonates, sodium hydroxide (caustic), potassium hydroxide, calcium hydroxide (lime), cyanide, sulfide, hypochlorites, chlorites) may generate heat, splattering or boiling and toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon 11. TOXICOLOGICAL INFORMATION The following results are for the product.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.5/12 j4NALCO SAFETY DATA SHEET PRODUCT NALCO 710D5 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC ACUTE ORAL TOXICITY: Species: Rat LD50: > 15,380 mg/kg Test Descriptor:

Product ACUTE DERMAL TOXICITY: Species: Rabbit LD50: > 3,038 mg/kg Test' Descriptor:

Product PRIMARY SKIN IRRITATION.-

Species: Rabbit Draize Score: 3.1 /8.0 Test Descriptor:

Product PRIMARY EYE IRRITATION:

Species: Rabbit Draize Score: 6.0 /110.0 Test Descriptor:

Product SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Moderate 112. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS.The following results are for the product.ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Bluegill Sunfish 96 hrs 121 mg/I Similar Product Rainbow Trout 96 hrs 310 mg/I Product Fathead Minnow 96 hrs 190 mg/I Similar Product Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.6/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 71 D5 PLUS-fi EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC ACUTE INVERTEBRATE RESULTS: Species Exposure LC50 EC50 Test Descriptor Daphnia magna 48 hrs 220 mg/I 130 mg/I Product Ceriodaphnia dubia 48 hrs 4.32 mg/I Similar Product PERSISTENCY AND DEGRADATION:

Total Organic Carbon (TOC) : 195,870 mg/I Chemical Oxygen Demand (COD): 2,200,000 mg/I Biological Oxygen Demand (BOD): I Incubation Period I Value ITest Descriptor 102,440 mg/I Product OECD 301 D (Closed Bottle) 28 Day 70-80%The organic portion of this preparation is expected to be inherently biodegradable.

MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III modeldoes not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages;, Air Water Soil/Sediment 10-30% 30-50% 30-50%The portion in water is expected to float on the surface.BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low Based on our recommended product application and the product's characteristics, the potential environmental exposure is: High If released into the environment, see CERCLA/SUPERFUND in Section 15.113. i DISPOSAL CONSIDERATIONS I If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

° (630)305-1000

• For additional copies of an MSDS visit www.nalco.com and request access.7/12

)4NALCO SAFETY DATA SHEET PRODUCT*NALCO 71D5 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC As a non-hazardous waste, it is not subject to federal regulation.

Consult state or local regulation for any additional handling, treatment or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading).specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

For Packages Less Than Or Equal To 119 Gallons: Proper Shipping Name: For Packages Greater Than 119 Gallons: Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: Flash Point: PRODUCT IS NOT REGULATED DURING TRANSPORTATION COMBUSTIBLE LIQUID, N.O.S.PETROLEUM HYDROCARBON.NA 1993 COMBUSTIBLE III 92 'C / 197 'F PRODUCT IS NOT REGULATED DURING TRANSPORTATION PRODUCT IS NOT REGULATED DURING TRANSPORTATION AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: MARINE TRANSPORT (IMDG/IMO)

" Proper Shipping Name : 115. I REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Paraffin Wax: Exposure Limit Hydrotreated Light Distillate:

Exposure Limit Nalco Company 1601 W. Diehl Road- Naperville, Illinois 60563-1198-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.8/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 71D5 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Straight Run Middle Distillate:

Combustible., HARMFUL Polypropylene Glycol: Exposure Limit Aliphatic alcohol: Combustible.

Aliphatic alcohol: Combustible.

CERCLA/SUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard-Delayed (Chronic)

Health Hazard X Fire Hazard-Sudden Release of Pressure Hazard-Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is : 138905 This product is acceptable for treatment of cooling and retort water (G5) in and around food processing areas.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4 / formerly Sec. 311 : This product may contain trace levels (<0.1% for carcinogens, <1% all other substances) of the following substance(s) listed under the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

Citations* Naphthalene Sec. 307, Sec. 311" Sulfuric Acid Sec. 311 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.9/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 71 D5 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

This product may contain trace levels (<0.1% for carcinogens, <1% all other substances) of the following substance(s) listed under the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

Citations Naphthalene Sec. 112 CALIFORNIA PROPOSITION 65: Substances known to the State of California to cause cancer and/or reproductive toxicity are present as an impurity or residue.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance with State Right to Know Laws: Paraffin Wax Aliphatic alcohol Aliphatic alcohol Straight Run Middle Distillate 8002-74-2 Proprietary Proprietary 64741-44-2 INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.10/12 SAFETY DATA SHEET)04LC0 PRODUCT NALCO .oc NALCO 71D5 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)NEW ZEALAND All substances in this product comply with the Hazardous Substances and New Organisms (HSNO) Act 1996,and are listed on or are exempt from the New Zealand Inventory of Chemicals.

PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).116. 1 OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Moderate* The environmental risk is: Low Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS' CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.11/12

...... K i A Am SAFETY DAIA SHIEIE)04" ALCOPRODUCT

~NALCO NALCO 71D5 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By : Product Safety Department Date issued : 03/11/2011 Version Number: 1.24 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.12/12 N4NALCO SAFETY DATA SHEET PRODUCT NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: NALCO 7384 APPLICATION:

CORROSION INHIBITOR COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 3/3 FLAMMABILITY:

0/0 INSTABILITY:

0/0 OTHER: 0 = Insignificant 1 Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

CAS NO 7646-85-7% (w/w)60.0- 100.0 Zinc Chloride 13. 1 HAZARDS IDENTIFICATION I**EMERGENCY OVERVIEW**

DANGER Corrosive.

May cause tissue damage. Harmful if swallowed.

Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Use a mild soap if available.

Wear a face shield. Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots.Not flammable or combustible.

May evolve HCI under fire conditions.

May evolve toxic gases or fumes under fire conditions.

Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas.PRIMARY ROUTES OF EXPOSURE Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Corrosive.

Will cause eye burns and permanent tissue damage.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/12 SAFETY DATA SHEET)NALCO PRODUCT NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC-SKIN CONTACT: Corrosive; causes permanent skin damage.INGESTION:

Corrosive; causes chemical burns to the mouth, throat and stomach. Harmful if swallowed.

INHALATION:

Elevated temperatures or mechanical action may form vapors, mists or fumes which may be irritating to the eyes, nose, throat and lungs.AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. 1 FIRST AID MEASURES EYE CONTACT: Immediately flush eye with water for at least 15 minutes while holding eyelids open. PROMPT ACTION IS ESSENTIAL IN CASE OF CONTACT. Get immediate medical attention.

SKIN CONTACT: Immediately flush with plenty of water for at least 15 minutes. Use a mild soap if available.

For a large splash, flood body under a shower. Get immediate medical attention.

Contaminated clothing, shoes, and leather goods must be discarded or cleaned before re-use.INGESTION:

Get immediate medical attention.

DO NOT INDUCE VOMITING.

If conscious, washout mduth and give water to drink.INHALATION:

Remove to fresh air, treat symptomatically.

Get immediate medical attention.

NOTE TO PHYSICIAN:

Probablemucosal damage may contraindicate the use of gastric lavage. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. FIRE FIGHTING MEASURES FLASH POINT Not applicable EXTINGUISHING MEDIA: Not expected to burn. Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve HCI under fire conditions.

May evolve toxic gases or fumes under fire conditions.

Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/12 SAFETY DATA SHEET)04" ALCOPRODUCT NNALCO NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.

Ensure clean-up is conducted by trained personnel only. Do not touch spilled material.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment., Prevent material from entering sewers or waterways., If drains, streams, soil or sewers become contaminated, notify local authority.

17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (forfires, spills, leaks, etc.) readily available.

Ensure all containers are labeled.STORAGE CONDITIONS:

Store the containers tightly closed. Store separately from oxidizers.

Store separately from bases. Store in suitable labeled containers.

SUITABLE CONSTRUCTION MATERIAL: Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.UNSUITABLE CONSTRUCTION MATERIAL: Metals 18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Category:

ppm mg/m3 Non-Standard Unit Zinc Chloride Fume (Fume) ACGIHfTWA Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/12 N4NALCO SAFETY DATA SHEET PRODUCT NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC ACGIHISTEL OSHA Z1/PEL 2 1 ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors or aerosols are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

Impervious gloves When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots. A full slicker suit is recommended if gross exposure is possible.EYE PROTECTION:

Wear a face shield with chemical splash goggles.HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Eye wash station and safety shower are necessary.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Moderate 19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Colorless ODOR None SPECIFIC GRAVITY 1.785 -1.8 @ 60 F /15.6 °C DENSITY 14.9 -15 lb/gal SOLUBILITY IN WATER Complete Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC pH (100 %) < 2 FREEZING POINT < -20 'F / < -29 'C BOILING POINT 275 °F / 135 'C VOC CONTENT 0 % Calculated Note: These physical properties are typical values for this product and are subject to change.10. STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION.:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Extremes of temperature MATERIALS TO AVOID: Contact with strong alkalies (e.g. ammonia and its solutions, carbonates, sodium hydroxide (caustic), potassium hydroxide, calcium hydroxide (lime), cyanide, sulfide, hypochlorites, chlorites) may generate heat, splattering or boiling and toxic vapors. Gives off hydrogen by reaction with metals.HAZARDOUS DECOMPOSITION PRODUCTS.:

Under fire conditions:

HCI, May evolve toxic fumes.11. TOXICOLOGICAL INFORMATION The following results are for the active components.

ACUTE ORAL TOXICITY : Species: LD50: Test Descriptor:

Rat 350 mg/kg Active Substance Zinc Chloride SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: High Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5/12

• 4NALCO SAFETY DATA SHEET PRODUCT NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 112. I ECOLOGICAL INFORMATION I ECOTOXICOLOGICAL EFFECTS: Results below (expressed as product) extrapolated from Ambient Quality Criteria Document for Zinc. The following results are for the product.ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Rainbow Trout 96 hrs 1.13 mg/I Tested in Soft Water (40-48 mg/L as CaC03)Fathead Minnow 96 hrs 1.83 mg/I Tested in Soft Water (40-48 mg/L as CaC03)Rainbow Trout 96 hrs 5.78 mg/I Tested in Hard Water (160-180 mg/L as CaC03)Fathead Minnow 96 hrs 24.96 mg/I Tested in Hard Water (160-180 mg/L as CaC03)Bluegill Sunfish 96 hrs 5 -18.5 mg/I Product Rainbow Trout 96 hrs 0.8 -1.8 mg/I Product ACUTE INVERTEBRATE RESULTS: Species Exposure LC50 EC50 Test Descriptor Daphnia magna 48 hrs 2.43 mg/I Tested in Hard Water (160-180 mg/L as CaC03)Daphnia magna 48 hrs 0.85 mg/I Tested in Soft Water (40-48 mg/L as CaC03)Daphnia magna 48 hrs 0.15 -0.9 mg/I Product MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 30 -50% 50 -70%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: High Based on our recommended product application and the product's characteristics, the potential environmental exposure is: Moderate If released into the environment, see CERCLA/SUPERFUND in Section 15.I 13. I DISPOSAL CONSIDERATIONS I If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.Hazardous Waste: D002 Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility.

Consult local, state, and federal regulations for specific requirements.

114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RO for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product.LAND TRANSPORT:

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group : ZINC CHLORIDE, SOLUTION UN 1840 8 III Flash Point: Not applicable 1,600 lbs ZINC CHLORIDE DOT Reportable Quantity (per package)DOT RQ Component

AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary ZINC CHLORIDE, SOLUTION UN 1840 8 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Packing Group: IATA Cargo Packing Instructions:

IATA Cargo Aircraft Limit: MARINE TRANSPORT (IMDG/IMO):

Proper Shipping Name: Technical Name(s): UN/ID No.: Hazard Class -Primary: Packing Group -*Marine Pollutant Ill 820 60 L (Max net quantity per package)ZINC CHLORIDE, SOLUTION UN 1840 8 III ZINC CHLORIDE*Note: This product is regulated as a Marine Pollutant when shipped by Rail, Highway, or Air in bulk quantities (greater than 119 gallons) and when shipped by water in all quantities.

115. 1 REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Zinc Chloride:

Corrosive CERCLA/SUPERFUND, 40 CFR 302: This product contains the following Reportable Quantity (RQ) Substance.

Also listed is the RQ for the product. If a reportable quantity of product is released, it requires notification to the NATIONAL RESPONSE CENTER, WASHINGTON, D.C. (1-800-424-8802).

RQ Substance Zinc Chloride RQ 1,600 lbs SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/12 P4NALCO SAFETY DATA SHEET ,PRODUCTJ NALCO) 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC X Immediate (Acute) Health Hazard-Delayed (Chronic)

Health Hazard-Fire Hazard-Sudden Release of Pressure Hazard-Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product contains the following substance(s), (with CAS # and % range) which appear(s) on the List of Toxic Chemicals Hazardous Substance(s)

CAS NO % (w/w)Zinc Chloride 7646-85-7 60.0 -100.0 TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)FOOD AND DRUG ADMINISTRATION (FDA) Federal Food, Drug and Cosmetic Act: When use situations necessitate compliance with FDA regulations, this product is acceptable under: 21 CFR 176.170 Components of paper and paperboard in contact with aqueous and fatty foods and 21 CFR 176.180 Components of paper and paperboard in contact with dry foods.Limitations:

no more than required to produce intended technical effect.NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds)

NSF Registration number for this product is : 062424 This product is acceptable as a compound for the treatment of entire potable water systems (G1) in official establishments in and around food processing areas. This product is acceptable for treatment of cooling, and retort water (G5) in and around food processing areas. This product is acceptable for treating boilers, steam lines, and/or cooling systems (G7) where neither the treated water nor the steam produced may contact edible products in and around food processing areas.This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.NSF INTERNATIONAL:

This product has received NSF/International certification under NSF/ANSI Standard 60 in the corrosion and scale control category.

The official name is "Zinc Chloride." Maximum product applicationdosage is : 6.0 mg/l.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.4 / formerly Sec. 311 : This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.I Substance(s)

I Citations Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/12 SAFETY DATA SHEET)04" ALCOPRODUCT NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Zinc Chloride Sec. 307, Sec. 311 CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.Zinc Compound STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance with State Right to Know Laws: Zinc Chloride 7646-85-7 Water 7732-18-5 INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10/12 SAFETY DATA SHEET)041'ALCOPRODUCT P4NALC0O NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC NEW ZEALAND All substances in this product comply with the Hazardous Substances and New Organisms (HSNO) Act 1996,and are listed on or are exempt from the New Zealand Inventory of Chemicals.

PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).116. 1 OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Moderate"* The environmental risk is: Moderate Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can.implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva:. World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 11/12

)4NALCO SAFETY DATA SHEET I PRODUCT NALCO 7384 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel InsightTM (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued: 04/09/2010 Version Number: 1.17 Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 12/12 Product Bulletin 3D TRASAR 3DT179 Cooling Water Corrosion Inhibitor PRODUCT DESCRIPTION AND APPLICATION 3D TRASAR products are part of an innovative water treatment program that uses proven technology to prevent operational problems.

3D TRASAR compensates for both routine and special causes of system variation.

3D TRASAR programs provide a return on your investment through their unique control and diagnostic capabilities.

3D TRASAR 3DT179 is a dual function phosphonate inhibitor for both cathodic corrosion and calcium carbonate scale inopen recirculating and once-through cooling systems. The active material is a patented, proprietary chemical called Phosphinosuccinic Oligomer (PSO). When used in conjunction with the anodic (pitting) inhibitor, the orthophosphate anion, PSO provides a superior alternative to traditional cooling water inhibitor blends containing pyrophosphate, orthophosphate, zinc, molybdate, etc. A differentiating property of 3DT179 is its hydrolytic stability and resistance to degradation in the presence of oxidizing biocides.

The product is used as one part of an integrated 3D TRASAR program for cooling water systems.3DT1 79 is recommended for systems where it is feasible to feed multiple components of a complete corrosion, scale and fouling program. For open recirculating systems, 3DT179 should be combined with some or all of the following:

• Orthophosphate (pitting corrosion protection)

-3DT185 or* 3DT186 [Preferred]

• Nalco tagged high-stress polymer (THSP) for general dispersancy (calcium phosphate scale, silt, iron, etc.) -3DT190* BZT (yellow metal inhibitor)

-3DT199 PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS), SECTION 9, for the most current data.Form Liquid Density 10.5 lb/gal Specific Gravity at 77 0 F (25 0 C) 1.26 pH (neat) 3.9 Freeze-Thaw Recovery Complete Flash Point Not Applicable Odor None Freeze Point 18-F (-8°C)Solubility in Water Complete Appearance Light Yellow ACTIVE CONSTITUENTS Active Function Phosphinosuccinic Oligomer (PSO) Mild steel corrosion and CaCO 3 scale inhibition REGULATORY APPROVALS Refer to the Material Safety Data Sheet (MSDS), SECTION 15 for the most recent information on approvals.

MATERIALS OF COMPATIBILITY Compatible Buna-N Polyurethane Polyethylene Polypropylene PVC Plasite 4300 Plasite 7122 HDPE Not Compatible Brass Stainless Steel 304 Stainless Steel 316 Neoprene Viton Hypalon EPDM DOSAGE AND FEEDING For complete dosage and feeding recommendations, consult your Nalco sales engineer.ENVIRONMENTAL AND TOXICITY DATA Biological Oxygen Demand (5-day BOD 5)Chemical Oxygen Demand (COD)Total Orqanic Carbon (TOC)750 ppm 230,000 ppm 97,000 ppm Refer to SECTIONS 11 and 12 of the Material Safety Data Sheet (MSDS) for all available mammalian and aquatic toxicity information.

SAFETY AND HANDLING 3DT179 is an acidic product and may cause skin and eye irritation.

Chemical-resistant gloves and safety goggles should be worn when handling 3DT179. Read SECTION 8 of the Material Safety Data Sheet for specific personal protective equipment (PPE) recommendations and SECTION 3 for health effects information.

STORAGE 3DT179 should be stored in a location where the product temperature can be maintained between 22"F (-6 0 C) and 110°F (43 0 C). In cold climates, heat tracing and insulation of exposed containers and transfer lines may be necessary.

3DT179 should be protected from freezing.

If product freezes, it should be thawed slowly, then recirculated in the container to re-homogenize.

The recommended in-plant storage limit for 3DT179 is twelve months. Refer to the Material Safety Data Sheet (MSDS), SECTION 7, for the most current data.

REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION TRASAR, 3D TRASAR, PORTA-FEED, NALCO and the logo are registered trademarks of Nalco Company (3-02-2009)Nalco Company, 1601 West Diehl Road, Naperville, Illinois 60563-1198 Subsidiaries and Affiliates in Principal Locations Around the World©2004 Nalco Company All Rights Reserved NNALCO SAFETY DATA SHEET I PRODUCT 3D TRASAR 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800)424-9300 (24 Hours) CHEMTREC 11. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME. 3D TRASARO 3DT179 APPLICATION:

CORROSION INHIBITOR COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours), CHEMTREC NFPA 704M/HMIS RATING HEALTH: 0/1 FLAMMABILITY:

1/1 INSTABILITY

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 =Extreme * =Chronic Health Hazard 1.2. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

13. 1 HAZARDS IDENTIFICATION"EMERGENCY OVERVIEW**

CAUTION May cause irritation with prolonged contact.Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Use a mild soap if available.

Wear suitable protective clothing.Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) and sulfur (SOx) under fire conditions.

May evolve oxides of phosphorus (POx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: May cause irritation with prolonged contact.SKIN CONTACT May cause irritation with prolonged contact.INGESTION:

Not a likely route of exposure.

There may be irritation to the gastro-intestinal tract with nausea and vomiting.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/10

~NALCOSAFETY DATA SHEET)041NALCOPRDC 3D TRASAR 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INHALATION:

Not a likely route of exposure.

Repeated or prolonged exposure may irritate the respiratory tract.AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. 1 FIRST AID MEASURES EYE CONTACT: Immediately flush with plenty of water for at least 15 minutes. If symptoms develop, seek medical advice.SKIN CONTACT: Flush with large amounts of water. Use soap if available.

If symptoms develop, seek medical advice.INGESTION

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. If symptoms develop, seek medical advice.INHALATION:

Remove to fresh air, treat symptomatically.

If symptoms develop, seek medical advice.NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. 1 FIRE FIGHTING MEASURES FLASH POINT: > 200 *F / > 93 °C (PMCC)LOWER EXPLOSION LIMIT: Not flammable UPPER EXPLOSION LIMIT: Not flammable EXTINGUISHING MEDIA .This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable.

Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

May evolve~oxides of nitrogen (NOx) and sulfur (SOx) under fire conditions.

May evolve oxides of phosphorus (POx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/10 SAFETY DATA SHEET)041' PRODUCT, 4NALCO 3D TRASAR 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 6. ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Prevent material from entering sewers or waterways.

17. 1 HANDLING AND STORAGE HANDLING: Avoid eye and skin contact. Do not take internally.

Ensure all containers are labeled. Keep the containers closed when not in use.STORAGE CONDITIONS:

Store the containers tightly closed. Store in suitable labeled containers.

SUITABLE CONSTRUCTION MATERIAL: Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.18. 1 EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: This product does not contain any substance that has an established exposure limit.ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors or aerosols are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/10 A4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR@ 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear standard protective clothing.EYE PROTECTION:

Wear safety glasses with side-shields.

HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.9. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Yellow ODOR None SPECIFIC GRAVITY 1.25 @ 77 -F / 25 -C DENSITY 10.4 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 3.5 FREEZING POINT 17.0 *F / -8.3 °C VOC CONTENT 0.0 % Calculated Note: These physical properties are typical values for this product and are subject to change.10. STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Avoid extremes of temperature.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/10

• P4NALCO SAFETY DATA SHEET"PRODUCT 3D TRASAR 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC MATERIALS TO AVOID: Contact with strong alkalies (e.g. ammonia and its solutions, carbonates, sodium hydroxide (caustic), potassium hydroxide, calcium hydroxide (lime), cyanide, sulfide, hypochlorites, chlorites) may generate heat, splattering or boiling and toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon, Oxides of nitrogen, Oxides of sulfur, Oxides of phosphorus 111. I TOXICOLOGICAL INFORMATION I The following results are for a similar product.ACUTE ORAL TOXICITY: Species: Rat LD50: > 2,000 mg/kg Test Descriptor:

Similar Product ACUTE DERMAL TOXICITY: Species: Rat LD50: > 2,000 mg/kg Test Descriptor.

Similar Product PRIMARY SKIN IRRITATION:

Species: Rabbit Draize Score: 0.0/8.0 Test Descriptor.

Similar Product SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).MUTAGENICITY:

Negative in the Ames Test.HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Low 12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: Nalco Company 1601 W. Diehl Road

• Naperville.

Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5110 AWNALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC The following results are for a similar product.ACUTE FISH RESULTS: Species Rainbow Trout Fathead Minnow Inland Silverside Exposure 96 hrs 96 hrs 96 hrs LC50> 1,000 mg/I> 1,000n/I> 5,000 Test Descriptor Similar Product Similar Product Similar Product I ACUTE INVERTEBRATE RESULTS: Spef e Exposure Daphnia magna 48 hrs Mysid Shrimp (Mysidopsis 96 hrs bahia)LC50> 1,000 rn /I 4,559 mg/Isý/-EC5~20nL Test Descriptor Similar Product Similar Product PERSISTENCY AND DEGRADATION:

Total Organic Carbon (TOC): 97,000 mg/i Chemical Oxygen Demand (COD): 230,000 mg/I Biological Oxygen Demand (BOD): Incubation Period I Value mTest Descriptar 5 d 1750 mg/1I The organic portion of this preparation is expected to be readily biodegradable.

MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate'of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sedime

<5% 10-30% 70 -90%The portion in water is expected to be soluble or dispersible.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/10 AWNALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low If released into the environment, see CERCLA/SUPERFUND in Section 15.113. I DISPOSAL CONSIDERATIONS I If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.As a non-hazardous waste, it is not subject to federal regulation.

Consult state or local regulation for any additional handling, treatment or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name I Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

.Proper Shipping Name: AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION PRODUCT IS NOT REGULATED DURING TRANSPORTATION PRODUCT IS NOT REGULATED DURING TRANSPORTATION MARINE TRANSPORT (IMDG/IMO)" Proper Shipping Name: 115. I REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

Nalco Company 1601 W. Diehl Road- Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/10

)4NALCO SAFETY DATA SHEET IPRODUCT 3D TRASAR(@ 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC CERCLAISUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355) : This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, forextremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is : 140500 This product is acceptable for treatment of cooling and retort water (G5) in and around food. processing areas. This product is acceptable for treating boilers, steam lines, and/or cooling systems (G7) where neither the treated water nor the steam produced may contact edible products in and around food processing areas.This product has been certified as KOSHERPPAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 /formerly Sec. 307,40 CFR 116.4 1 formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/10 AWNALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).176. 1 OTHER INFORMATION This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/10

)NNALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT179 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel InsightTM CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight'T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS- CD-ROM Version), Micromedex, Inc., Englewood, CO.Adel Insight"M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel InsightTM CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued: 04/07/2010 Version Number: 1.6 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198 (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10/10

)4NALCO Prfo&Kt iuetin 3D TRASAR'Cooling Water Dispersant PRODUCT DESCRIPTION AND APPLICATION 3D iRASAR products are part of an innovative water treatment program that uses proven technology to prevent operational problems.

3D TRASAR compensates for both routine and special causes of system variation.

3D IRASAR programs provide a return on your investment through their unique control and diagnostic capabilities.

3D TRASAR S is a specialty formulated product using Nalco's Tagged High Stress Polymer (THSP) to control iron, manganese, calcium phosphate, zinc and suspended solids deposition in High Stress cooling water systems.Stresses that may require the use of THSP are: " Water temperature

> 135°F (57°0)* Skin temperature

> 160 0 F (710*0)" Flow rates < 2 feet per second" Calcium > 750 ppm" Phosphate>

30 ppm* Iron>2 ppm" Aluminum > 0.5 ppm" Holding Time index (HT1)PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS), SECTION 9, for the most current data.Color Form Odor Density Solubility in water Specific Gravity @ 71°F (22"C)pH (neat)Viscosity

@ 71F (220C)Freeze Point Pour Point Boiling Point @ 760 mm Hg Flash Point (PMCC)Clear to hazy-colorless to brown Liquid None 10.6 lb/gal (1.27 kg/I)Complete 1.27 4.5-6.0 600 cps 13-F ( )W5°F (--9C)212°F (100-C)None ACTIVE CONSTITUENTS Active Tagged High Stress Polymer (THSP)REGULATORY APPROVALS Function Calcium phosphate, zinc, iron, manganese, and suspended solids control 3D TRASAR is intended for industrial use only. It should not be fed to potable water systems. Please refer to the MSDS for the most recent approval information.

MATERIALS OF COMPATIBILITY Compatible Not Compatible Bvna-N Aluminum EPDM Brass Fiberglass Carbon Steel Hypalon Nickel Neoprene Stainless Steel 304 Plasite 4005 Stainless Steel 316 Plasite 6000 Plasite 7122 Polyethylene Polypropylene Polyurethane PVC Teflon Vinyl Viton DOSAGE AND FEEDING The dosage of 3D TRASARI= will vary with water chemistry and other site specific parameters.

Consult your Nalco representative for specific dosage and feeding recommendations.

3D TRASAR should be fed via a closed feed system. A closed feed system is defined as a system in which fluid is moved from a closed storage vessel into a treated media without exposure to the atmosphere except through normal venting or pressure relief devices.3D TRASAR must be fed continuously to assure adequate levels of chemical residual are maintained at all times. Slug feeding must be avoided because it will result in periods of high and low levels of chemical residual.3D TRASAR must be fed where rapid mixing will occur, and be distributed throughout the system. In most situations, feeding to a location just prior to the suction side of the circulating water pump is recommended.

Do not feed two products at the same application point where localized product mixing can occur. Do not mix with other chemicals.

Unwanted interactions may occur that will decrease or destroy the productrs effectiveness.

Check chemical inventory and feed rate regularly.

Loss of feed will result in increased corrosion.

ENVIRONMENTAL AND TOXICITY DATA Biological Oxygen Demand (5-day BOD.) 19,O00 ppm Chemical Oxygen Demand (COD) 410,000 ppm Total Organic Carbon (TOC) 140,000 ppm Refer to SECTIONS I I and 12 of the Material Safety Data Sheet for all available mammalian and aquatic toxicity information.

SAFETY AND HANDLING Read SECTION 0 of the Material Safety Data Sheet for specific personal protective equipment and SECTION 3 for health effects information before using 3D TRASAR 3D TRASAR U is a mildly acidic product that may cause eye or skin irritation, with prolonged contact. Chemical-resistant gloves and safety goggles/face shield should be wom when handling 3D TRASAR STORAGE 3D TRASAR W should be stored in a location where the product temperature can be kept in a range between 15°F (-9C) and 120"F (49 0 C). Recommended in-plant storage limit is one year.REMARKS Ifyou need assistance or more information on this product please call your nearest Nalco Representative.

For more news about Nalco Company, visit ourwebsite atwww.nelco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION TRASAR and NALCO are registered trademarks of Nalco Company (2-1 "4)I ý ci I ý I) "fir". I iltl I 0tif Pifil I'. (,.I< I. I I., I) ýivd I e. Iffiww, Ili ý-14sAi);ser,e-nc a( .mI5l~ez in PstnuS55 Locitions cr, nrcd 1heYD.C@20O10 Ns~co OCnrnnrq i @Rihts feser /0

)4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT190 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: 3D TRASAR 3DT190 APPLICATION:

COOLING WATER TREATMENT COMPANY IDENTIFICATION Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 1/1 FLAMMABILITY 1 /1 INSTABILITY:

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

13. 1 HAZARDS IDENTIFICATION

-*EMERGENCY OVERVIEW**

CAUTION May cause irritation with prolonged contact.Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Use a mild soap if available.

Keep container tightly closed. Protect product from freezing.Wear suitable protective clothing.Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of sulfur (SOx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT : May cause irritation with prolonged contact.SKIN CONTACT: May cause irritation with prolonged contact.INGESTION:

Not a likely route of exposure.

There may be irritation to the gastro-intestinal tract with nausea and vomiting.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/10 SAFETY DATA SHEET)NALCO PODUCT 3D TRASAR 3DT190 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INHALATION:

Not a likely route of exposure.

Repeated or prolonged exposure may irritate the respiratory tract.AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. 1 FIRST AID MEASURES EYE CONTACT: Immediately flush with plenty of water for at least 15 minutes. Get medical attention.

SKIN CONTACT : Flush with large amounts of water. Use soap if available.

If symptoms develop, seek medical advice.INGESTION:

Get medical attention.

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. Get medical attention.

INHALATION:

Remove to fresh air, treat symptomatically.

If symptoms develop, seek medical advice.NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. 1 FIRE FIGHTING MEASURES FLASH POINT: > 200 'F / > 93.3 'C ( PMCC)EXTINGUISHING MEDIA: This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable.

Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of sulfur (SOx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/10 SAFETY DATA SHEET NALCO PRODUCT 3D TRASAR 3DT190 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Prevent material from entering sewers or waterways.

17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled.STORAGE CONDITIONS:

Store in suitable labeled containers.

Store the containers tightly closed.SUITABLE CONSTRUCTION MATERIAL: Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: This product does not contain any substance that has an established exposure limit.ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors or aerosols are generated, an approved air purifying, respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/10

)4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT190 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear standard protective clothing.EYE PROTECTION:

Wear safety glasses with side-shields.

HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.9. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Yellow ODOR None SPECIFIC GRAVITY 1.27 @ 60.0 -F / 15.6 -C DENSITY 10.55 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 4-7 VISCOSITY Max 600.0 cps @ 75.0 °F 23.9 'C VAPOR PRESSURE Same as water EVAPORATION RATE Same as water VOC CONTENT 0.7 % Calculated Note: These physical properties are typical values for this product and are subject to change.10. STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Extremes of temperature Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/10

)04NALCO SAFETY DATA SHEET EMERGENCY TELEPHONE NUMBER(S)4oUU) qzq-zpjUU 114 "oursj AlcnI MM~, MATERIALS TO AVOID: Strong oxidizing agents HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon, Oxides of sulfur 111.1 TOXICOLOGICAL INFORMATIONI No toxicity studies have been conducted on this product.ACUTE ORAL TOXICITY":

Species: Rat LD50: > 5,000 mg/kg Test Descriptor:

Similar Product SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Low 112. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product and a similar product.ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Rainbow Trout 96 hrs 4,884 mg/I Similar Product Inland Silverside 96 hrs > 5,000 mg/I Similar Product Fathead Minnow 96 hrs 3,145 mg/1 Product ACUTE INVERTEBRATE RESULTS: Species Exposure LC50 EC50 Test Descriptor Daphnia magna 48 hrs 938 mg/I Similar Product Mysid Shrimp (Mysidopsis 96 hrs 3,750 mg/I Similar Product bahia)Ceriodaphnia dubia 48 hrs 750 mg/I Similar Product Daphnia magna 48 hrs 665 mg/I Product Mysid Shrimp (Mysidopsis 96 hrs 2,817 mg/I _ ___Product Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5110 04NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT190 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours)CHEMTREC bahia)PERSISTENCY AND DEGRADATION:

Total Organic Carbon (TOC): 150,000 mg/I The organic portion of this preparation is expected to be poorly biodegradable.

MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 10-30% 70 -90%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low If released into the environment, see CERCLA/SUPERFUND in Section 15.113. 1 DISPOSAL CONSIDERATIONS If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.As a non-hazardous waste, it is not subject to federal regulation.

Consult state or local regulation for any additional handling, treatment or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.Empty drums should be taken for recycling, recovery, or disposal through a suitably qualified or licensed contractor.

Triple rinse (or equivalent) all containers and offer for recycling or reconditioning, or puncture and dispose of in a sanitary landfill, or by other procedures approved by state and local authorities.

Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/10 P4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT190 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 14. TRANSPORT INFORMATION The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name : MARINE TRANSPORT (IMDG/IMO):

PRODUCT IS NOT REGULATED DURING TRANSPORTATION PRODUCT IS NOT REGULATED DURING TRANSPORTATION Proper Shipping Name: 115. 1 REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, none of the substances in this product are hazardous.

CERCLA/SUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARAISUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/10 SAFETY DATA SHEET NNALCO)04" PRODUCT 3D TRASAR 3DT190 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is : 141563 This product is acceptable for treatment of cooling and retort water in and around food processing areas, excluding such use in areas where meat and poultry are processed (G8).This product is acceptable for treating boilers, steam lines, and/or cooling systems where neither the treated water nor the steam produced may contact edible products in and around food processing areas, excluding such use in areas where meat and poultry are processed (G 10).This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.4 /formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances):

This product may contain trace levels (<0.1% for carcinogens, <1% all other substances) of the following substance(s) listed under the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

Citations Methanol Sec. 112 CALIFORNIA PROPOSITION 65: Substances known to the State of California to cause cancer and/or reproductive toxicity are present as an impurity or residue.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS : The following substances are disclosed for compliance with State Right to Know Laws: Sodium Sulfate 7757-82-6 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/10 SAFETY DATA SHEET A41" PRODUCT NALCO 3D TRASAR 3DT190 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)NEW ZEALAND All substances in this product comply with the Hazardous Substances and New Organisms (HSNO) Act 1996,and are listed on or are exempt from the New Zealand Inventory of Chemicals.

PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).16. OTHER INFORMATION This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/10

)4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT190 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By : Product Safety Department Date issued: 03/15/2010 Version Number: 1.11 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS. visit www.nalco.com and request access 10/10 Product Bulletin 3D TRASAR 3DT197 Copper alloy corrosion inhibitor PRODUCT DESCRIPTION AND APPLICATION 3D TRASAR products are part of an innovative water treatment program that uses proven technology to prevent operational problems.

3D TRASAR compensates for both routine and special causes of system variation.

3D TRASAR programs provide a return on your investment through their unique control and diagnostic capabilities.

3D TRASAR 3DT1 97 is a liquid blend of organic, film-forming, copper corrosion inhibitors.

3DT1 97 is blended to provide excellent copper and copper alloy corrosion inhibition even in the presence of high levels of chlorine or bromine. The product is also designed to reduce the copper throw to meet EPAs discharge limits.3DT1 97 is designed to supplement other chemical treatments used in open recirculating cooling systems, or closed loops that contain copper or copper alloys.PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS), SECTION 9, for the most current data.Color Form Odor Density Solubility in Water Specific Gravity @ 77 0 F (25 0 C)pH (neat)Viscosity

@ 60°F (1 5.5 0 C)Freeze Point Flash Point (PMCC)Boiling Point @ 760 mm Hg Vapor Pressure @ 770 F [250 C]Dark amber Liquid Slight Organic 9.9 lb/gal (1.19 kg/L)Complete 1.19 11.5- 14.0 55 cp-1.3°F (-18.5 0 C)>200°F (>93 0 C)225°F (107TC)0.04 mm Hg ACTIVE CONSTITUENTS Proprietary Azole Blend Yellow Metal Inhibitor REGULATORY APPROVALS 3DT1 97 is intended for industrial use only. It must not be fed to potable water systems.Refer to the Material Safety Data Sheet (MSDS), SECTION 15 for the most recent information on approvals.

MATERIALS OF COMPATIBILITY Compatible Not Compatible Phenolic Buna-N EPDM Polyethylene Polypropylene Chlorosulfonated Polyethylene PVC Plasite 4300 Plasite 7122 Neoprene Stainless Steel 304 Stainless Steel 316 HDPE Brass Brass Fluoroelastomer Polyurethane DOSAGE AND FEEDING 3DT197 should be fed via a closed feed system. A closed feed system is defined as a system in which fluid is moved from a closed storage vessel into a treated media without exposure to the atmosphere except through normal venting or pressure relief devices.3DT197 should be fed to a location where rapid mixing will occur, and where it will be uniformly distributed throughout the system. Feeding to a location just prior to the suction side of the circulating water pump is recommended.

It should be fed continuously to maintain optimum activity, and adequate residuals.

ENVIRONMENTAL AND TOXICITY DATA Biological Oxygen Demand (5-day BOD 5)Chemical Oxygen Demand (COD)Total Organic Carbon (TOC)Not Available 750,000-PPM 270,000-PPM Refer to the Material Safety Data Sheet (MSDS), SECTIONS 11 and 12, for the most current data.SAFETY AND HANDLING 3DT197 is an alkaline corrosive material and can cause eye and skin irritation.

Chemical-resistant gloves and safety goggles should be worn when handling 3DT197.Refer to the Material Safety Data Sheet (MSDS), SECTIONS 3 and 8, for the most current data.STORAGE 3DT197 should be stored in a location where the product temperature can be kept in a range between 5°F (-15 0 C) and 120°F (49 0 C).Recommended in-plant storage limit is one year.Refer to the Material Safety Data Sheet (MSDS), SECTION 7, for the most current data.

REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION 3D TRASAR, NALCO and the logo are trademarks of Nalco Company (9-29-2010)

Nalco Company, 1601 West Diehl Road, Naperville, Illinois 60563-1198 Subsidiaries and Affiliates in Principal Locations Around the World@2004 Nalco Company All Rights Reserved

'PNALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT197 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: 3D TRASAR 3DT197 COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 3/3* FLAMMABILITY:

1 /1 INSTABILITY:

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

Substituted aromatic amine Substituted Triazole CAS NO Proprietary Proprietary

% (w/w)1.0- 5.0 30.0- 60.0 13. HAZARDS IDENTIFICATION I**EMERGENCY OVERVIEW**

DANGER Corrosive.

May cause tissue damage. May cause sensitization by skin contact. Harmful if swallowed.

Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Use a mild soap if available.

Wear a face shield. Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots.May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE : Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Corrosive.

Will cause eye burns and permanent tissue damage.SKIN CONTACT: Corrosive; causes permanent skin damage. May cause sensitization by skin contact.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/10 SAFETY DATA SHEET~NALCO .oo NALCO. 3D TRASAR 3DT .197 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INGESTION:

Not a likely route of exposure.

Corrosive; causes chemical burns to the mouth, throat and stomach. Harmful if swallowed.

INHALATION:

Not a likely route of exposure.

Elevated temperatures or mechanical action may form vapors, mists or fumes which may be irritating to the eyes, nose, throat and lungs.HUMAN HEALTH HAZARDS -CHRONIC: Repeated or prolonged contact may cause sensitization in some individuals.

14. 1 FIRST AID MEASURES EYE CONTACT: Get immediate medical attention.

PROMPT ACTION IS ESSENTIAL IN CASE OF CONTACT. Immediately flush eye with water for at least 15 minutes while holding eyelids open.SKIN CONTACT: Immediately flush with plenty of water for at least 15 minutes. Use a mild soap if available.

For a large splash, flood body under.a shower. Get immediate medical attention.

Contaminated clothing, shoes, and leather goods must be discarded or cleaned before re-use.INGESTION

Get immediate medical attention.

DO NOT INDUCE VOMITING.

If conscious, washout mouth and give water to drink.INHALATION:

Remove to fresh air, treat symptomatically.

Get immediate medical attention.

NOTE TO PHYSICIAN:

Probable mucosal damage may contraindicate the use of gastric lavage. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. 1 FIRE FIGHTING MEASURES FLASH POINT. > 200 F/> 93.3 'C EXTINGUISHING MEDIA: This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable.

Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road .Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/10 N4NALCO EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS.:

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.

Ensure clean-up is conducted by trained personnel only. Do not touch spilled material.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment., Prevent material from entering sewers or waterways., If drains, streams, soil or sewers become contaminated, notify local authority.

17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled. Do not mix with acids.STORAGE CONDITIONS:

Store in suitable labeled containers.

Store the containers tightly closed. Store separately from acids. Store separately from oxidizers.

SUITABLE CONSTRUCTION MATERIAL: Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.18. 1 EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS .This product does not contain any substance that has an established exposure limit.ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors, aerosols, or dusts are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/10 AWNALCO SAFETY DATA SHEET EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training,.

maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gauntlets is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots. A full slicker suit is recommended if gross exposure is possible.EYE PROTECTION:

Wear a face shield with chemical splash goggles.HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Eye wash station and safety shower are necessary.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Low 19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Dark ODOR Slight SPECIFIC GRAVITY 1.18 @ 60.0 -F / 15.5 -C DENSITY 9.8 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 11.5-14.0 VISCOSITY 55.0 cps @ 60.0 'F / 15.5 'C INITIAL BOILING POINT 224.9 'F/107.1 'C VOC CONTENT 4.2 % Calculated Note: These physical properties are typical values for this product and are subject to change.10. STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/10

)4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT1 97 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Avoid extremes of temperature.

MATERIALS TO AVOID: Acids Contact with strong acids (e.g. sulfuric, phosphoric, nitric, hydrochloric, chromic, sulfonic) may generate heat, splattering or boiling and toxic vapors. Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon, Oxides of nitrogen 11. TOXICOLOGICAL INFORMATION No toxicity studies have been conducted on this product.SENSITIZATION:

May cause sensitization by skin contact.CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: High 112. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product, unless otherwise indicated.

ACUTE FISH RESULTS : Species Exposure LC50 Test Descriptor Fathead Minnow 96 hrs 63.3 mg/I Product Rainbow Trout 96 hrs 18.1 mg/I Product ACUTE INVERTEBRATE RESULTS : Species Exposure LC50 EC50 Test Descriptor Ceriodaphnia dubia 48 hrs 79.7 mg/I Product Mysid Shrimp (Mysidopsis 96 hrs 38.5 mg/I Product bahia)Daphnia magna 48 hrs 85.4 mg/I Product Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5/10

)4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT197 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level Ill model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 30 -50% 50 -70%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Moderate Based on our recommended product application and the product's characteristics, the potential environmental exposure is: Low If released into the environment, see CERCLA/SUPERFUND in Section 15.113. 1 DISPOSAL CONSIDERATIONS I If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.Hazardous Waste: D002 Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility.

Consult local, state, and federal regulations for specific requirements.

114. 1 TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S Substituted Triazole, Substituted aromatic amine UN 3267 8 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/10

)4NALCO SAFETY DATA SHEET I PRODUCT 3D TRASAR 3DT197 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Packing Group: Flash Point: II> 200 F/> 93.3 °C AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: Technical Name(s)": UN/ID No: Hazard Class -Primary: Packing Group : IATA Cargo Packing Instructions:

IATA Cargo Aircraft Limit: MARINE TRANSPORT (IMDG/IMO):

CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S Substituted Triazole, Substituted aromatic amine UN 3267 8 II 812 30 L (Max net quantity per package)CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S-Substituted Triazole, Substituted aromatic amine UN 3267 8 II Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: 115. i REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Substituted aromatic amine : Corrosive, Dermal Sensitizer, HARMFUL Substituted Triazole : Corrosive CERCLA/SUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370) : Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/10

)4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT197 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC X Immediate (Acute) Health Hazard-Delayed (Chronic)

Health Hazard-Fire Hazard-Sudden Release of Pressure Hazard-Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is : 143652 This product is acceptable for treatment of cooling and retort water in and around food processing areas, excluding such use in areas where meat and poultry are processed (G8).FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.4 /formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CLEAN AIR ACT, Sec.' 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/10 SAFETY DATA SHEET~NALCO 3D TRASAR 3DT197 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with theNational Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).116. 1 OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Low* The environmental risk is: Low Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/10 SAFETY DATA SHEET R4" NACRODUCT 4 NALCO 1ooocI 3D TRASAR 3DT197 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPST M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel InsightTM (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel InsightTM CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By : Product Safety Department Date issued : 08/23/2010 Version Number: 1.15 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10/10 Product Bulletin Biodetergent 73550 Cooling Tower Fill Cleaner/Biodetergent PRODUCT DESCRIPTION AND APPLICATION Biodetergent 73550 is a nonionic biodetergent for removing and dispersing microbiological-based slime and silt deposits within cooling tower fill. As a detergent, Biodetergent 73550 disrupts biofilm integrity, removing surface deposits and facilitating biocide penetration into the slime. As a dispersant, Biodetergent 73550 disperses dislodged biofilm aggregates into the bulk water preventing redeposition.

Biodetergent 73550 removes surface deposits through a combination of chemical solubilization and physical scrubbing by entrained air bubbles.PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS) for the most current data.Form Color Specific Gravity @ 25°C (77°F)Density pH (neat)Freeze-Thaw Recovery Viscosity

@ 40°C (104 0 F)Viscosity

@ 30 0 C (86 0 F)Viscosity

@ 20TC (68TF)Viscosity

@ 10 0 C (50 0 F)Viscosity

@ 0 0 C (32 0 F)Flash Point Freeze Point Odor Liquid Light Yellow 1.10 1.10 kg/I (9.2 lb/gal)7.5 -8.5 Complete 300 cp 450 cp 700 cp 1050 cp 1520 cp>93 0 C (200 0 F)-3°C (26-F)None ACTIVE CONSTITUENTS Component Blend of alkyl polyqlycosides Function Biodeterqent REGULATORY APPROVALS Biodetergent 73550 is not a biocide; it is not registered by the EPA as a pesticide.

MATERIALS OF COMPATIBILITY Compatible Derakane 411 Atlac 382 Plasite 3066 Plasite 3070 Plasite 9570 Stainless Steel 304 Stainless Steel 316-Polyethylene HDPE Hetron 197 Hetron Isophthalate Viton Silicone Butyl and hard, natural rubber Not Compatible Carbon Steel DOSAGE AND FEEDING For complete dosage and feeding recommendations, consult your Nalco representative.

ENVIRONMENTAL AND TOXICITY DATA Refer to the product's Material Safety Data Sheet SECTIONS 11 and 12 for all aquatic and mammalian toxicity information.

Biological Oxygen Demand (5-day BOD 5)Chemical Oxygen Demand (COD)Total Organic Carbon (TOC)Not Available Not Available Not Available SAFETY AND HANDLING Please read the Biodetergent 73550 Material Safety Data Sheet before using this product.STORAGE The recommended in-plant storage limit for Biodetergent 73550 is twelve months.REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION NALCO is a registered trademark of Nalco Company (2-16-04)

Nalco Company, 1601 West Diehl Road, Naperville, Illinois 60563-1198 Subsidiaries and Affiliates in Principal Locations Around the World©2004 Nalco Company All Rights Reserved

)'NALCO SAFETY DATA SHEET PRODUCT NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: NALCO 73550 APPLICATION CLEAN TOWER BIODETERGENT COMPANY IDENTIFICATION Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 2 /3 FLAMMABILITY:

1/1 INSTABILITY

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme Chronic Health Hazard 12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

Nonionic Surfactant Nonionic Alkyl Polyglycoside CAS NO Proprietary Proprietary

% (w/w)10.0- 30.0 10.0- 30.0 13. HAZARDS IDENTIFICATION I**EMERGENCY OVERVIEW**

DANGER Risk of serious damage to eyes.Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Use a mild soap if available.

Wear eye/face protection.

Wear suitable protective clothing.Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE.: EYE CONTACT: Severely irritating.

If not removed promptly, will injure eye tissue and may result in permanent eye damage.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.1/11 SAFETY DATA SHEET NALCO PRODUCT NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SKIN CONTACT: May cause irritation with prolonged contact.INGESTION:

Not a likely route of exposure.

There may be irritation to the gastro-intestinal tract with nausea and vomiting.INHALATION:

Not a likely route of exposure.

Repeated or prolonged exposure may irritate the respiratory tract.AGGRAVATION OF EXISTING CONDITIONS:

A review of availabledata does not identify any worsening of existing conditions.

HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above. No adverse effects expected other than those mentioned above.14. 1 FIRST AID MEASURES EYE CONTACT.Immediately flush eye with water for at least 15 minutes while holding eyelids open. If irritation persists, repeat flushing.

Get immediate medical attention.

Immediately flush eye with water for at least 15 minutes while holding eyelids open. PROMPT ACTION IS ESSENTIAL IN CASE OF CONTACT. Get immediate medical attention.

SKIN CONTACT: Flush with large amounts of water. Use soap if available.

If symptoms develop, seek medical advice.INGESTION:

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. Get medical attention.

INHALATION:

Remove to fresh air, treat symptomatically.

Get medical attention.

NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. FIRE FIGHTING MEASURES FLASH POINT: None EXTINGUISHING MEDIA: This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable.

Keep containers cool by spraying with water. Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.2/11

)4NALCO SAFETY DATA SHEET I PRODUCT NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:-

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.

Ensure clean-up is conducted by trained personnel only. Do not touch spilled material.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Notify appropriate government, occupational health and safety and environmental authorities.

Spill may be slippery.METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Prevent material from entering sewers or waterways.

17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled.STORAGE CONDITIONS:

Store the containers tightly closed. Store in suitable labeled containers.

Store separately from oxidizers.

SUITABLE CONSTRUCTION MATERIAL: Buna-N, HDPE (high density polyethylene), Polypropylene, Polyethylene, Stainless Steel 304, Fluoroelastomer, Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.UNSUITABLE CONSTRUCTION MATERIAL : Brass, Neoprene, Mild steel, Epoxy phenolic resin 18. -1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: This product does not contain any substance that has an established exposure limit.ENGINEERING MEASURES: Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.3/11

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC General ventilation is recommended.

RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors, aerosols, or dusts are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator/

cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear standard protective clothing.EYE PROTECTION:

Wear chemical splash goggles.HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Low 19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Light yellow ODOR Mild SPECIFIC GRAVITY 1.1 @ 77 -F /25 0C DENSITY 9.2 lb/gal SOLUBILITY IN WATER Dispersible pH (10 %) 7.0-9.5 BOILING POINT > 212 *F / > 100 'C Note: These physical properties are typical values for this product and are subject to change.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.4/11 PNALCO SAFETY DATA SHEET PRODUCT NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 110. 1 STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Avoid extremes of temperature.

MATERIALS TO AVOID: Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS : Under fire conditions:

Oxides of carbon 11. TOXICOLOGICAL INFORMATION The following results are for a similar product.ACUTE ORAL TOXICITY: Species: Rat LD50: > 5,000 mg/kg Test Descriptor:

Similar Product ACUTE DERMAL TOXICITY: Species: Rabbit LD50: .> 2,000 mg/kg Test Descriptor:

Similar Product PRIMARY SKIN IRRITATION.

Species: Rabbit Draize Score: 1.3/8.0 Test Descriptor:

Similar Product Remarks:-

Not irritating PRIMARY EYE IRRITATION:

Species: Rabbit Draize Score: 59 -92 /110.0 Test Descriptor:

Similar Product Remarks: Eye irritant Nalco Company 1601 W. Diehl Road ° Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.5/11

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:-

Based on our hazard characterization, the potential human hazard is: Moderate 112. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product.ACUTE FISH RESULTS " Species Exposure LC50 Test Descriptor Rainbow Trout 96 hrs 19 mg/I Product Inland Silverside 96 hrs 19 mg/I Product Gold Orfe 96 hrs 30 mg/I Product Fathead Minnow 96 hrs 21.35 mg/I Product ACUTE INVERTEBRATE RESULTS: Species Exposure LC50 EC50 Test Descriptor Daphnia magna 48 hrs 76 mg/I 76 mg/I Product Mysid Shrimp (Mysidopsis 96 hrs 5.9 mg/I 5.4 mg/I Product bahia)Ceriodaphnia dubia 48 hrs 28.3 mg/I Product CHRONIC INVERTEBRATE RESULTS: ISpecies I Test Type I NOEC/LOEC I End Point I Test Descriptor Ceriodaphnia dubia 20 mg/I / 40 mg/I Reproduction Product PERSISTENCY AND DEGRADATION:

Total Organic Carbon (TOC) : 250,000 mg/I Chemical Oxygen Demand (COD): 850,000 mg/I Biological Oxygen Demand (BOD): I Incubation Period I Value Test Descriptor 400,000 m /I The organic portion of this preparation is expected to be inherently biodegradable.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.6/11

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 10-30% 50 -70%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Moderate Based on our recommended product application and the product's characteristics, the potential environmental exposure is: Moderate If released into the environment, see CERCLA/SUPERFUND in Section 15.13. DISPOSAL CONSIDERATIONS If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.As a non-hazardous waste, it is not subject to federal regulation.

Consult state or local regulation for any additional handling, treatment or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.14. TRANSPORT INFORMATION The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name': AIR TRANSPORT (ICAO/IATA):

PRODUCT IS NOT REGULATED DURING TRANSPORTATION PRODUCT IS NOT REGULATED DURING TRANSPORTATION Proper Shipping Name: Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.7/11 SAFETY DATA SHEET)04" ALCOPRODUCT PNALCO .oo NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC_-A MARINE TRANSPORT (IMDG/IMO):

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION 115. REGULATORY INFORMATION This section contains, additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA.: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Nonionic Surfactant

Corrosive to eyes Nonionic Alkyl Polyglycoside:

Corrosive to eyes CERCLA/SUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard-Delayed (Chronic)

Health Hazard-Fire Hazard-Sudden Release of Pressure Hazard-Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.8/11

...........

A .... I SAFETY DATA SHEET)04" ALCOPRODUCT p:4NALCO NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is : 138550 This product is acceptable for treatment of cooling and retort water (G5) in and around food processing areas.This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4 / formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances):

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.9/11

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)NEW ZEALAND All substances in this product comply with the Hazardous Substances and New Organisms (HSNO) Act 1996,and are listed on or are exempt from the New Zealand Inventory of Chemicals.

PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).116. OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Low* The environmental risk is: Moderate Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.10/11 SAFETY DATA SHEET)04"NALr PRODUCT~NALCO NALCO 73550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued : 03/10/2011 Version Number : 3.7 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.11/11 PNALCO Product lulletin NALCO Soft Foulant Deposit Cleoner/Biodetergent PRODUCT DESCRIPTION AND APPLICATION NALCO = is a nonionic compound used to remove and disperse 'soft foulant" (biofilm-enmeshed mud, silt and clay) deposits in cooling water systems including cooling tower fill. condenser water-side tubes and tube-side heat exchangers.

NALCO demonstrates superior cleaning action through a combination of chemical solubilization and physical scrubbing by entrained air bubbles. Once soft foulant aggregates are dislodged into the bulk fluid, NALCO O prevents re-establishment of soft-foulont deposits.NALCO U may be powerful enough to use as a primary cleaner, but it should be complemented with biocide usage so that dislodged microbial populations are killed and not given any chance to re-establish on surfaces.PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS), SECTION 9, for the most current data.Form Liquid Density 1.01 kg/I (6.425 Ib/gal)Specific Gravity at 25C (77F0 0.99- 1.03 pH (nea!) 6.6-7.0 Freeze-Thaw Recovery Complete Flash Point > 93 C (>200'F Odor None Freeze Point -30 (2[2F Solubility in Water Complete Appearance Light Yellow ACTIVE CONSTITUENTS Active Blend of Nonionic Surfactants Function Biodetergent REGULATORY APPROVALS NALCO a is not a biocide and does not need to be registered by the EPA as a pesticide.

Refer to the Material Safety Data Sheet (MSDS), SECTION 15 for the most recent information on approvals.

MATERIALS OF COMPATIBILITY Compatible Brass VitonO synthetic rubber o-rings Buna-N o-rings HypalonrD elastomer o-rings Polyurethane o-rings EPDM o-rings Polyethylene piping (rigid)Polypropylene piping (rigid)CPVC piping (rigid)PORTA-FEEDlO Liner (RCC9036)Blue Plastic Drum (HDPE, RCC'625)Plasite 4300 Liner (vinyl ester resin)Plasite 7122 Liner (epoxy phenolic)Not Compatible Neoprene o-rings Coated steel drum (phenolic, RCC'635)304 Stainless Steel (RCC*9014)

DOSAGE AND FEEDING The specific dosage of NALCO 1 will vary depending on the characteristics of your system and the Bio-Manage objective for your microbio control program. Your Nalco representative will recommend the optimum dosage for cost-effective control and results.ENVIRONMENTAL AND TOXICITY DATA Canadian Food Inspection Agency (CFLAq: Authorized use is under category W2 ("Will not come in contact with food products").

Refer to the Material Safety Data Sheet (MSDS), SECTIONS II and 12, for the most current data.SAFETY AND HANDLING Handling:

Avoid eye and skin contact. Do not take internally.

Ensure all containers are labeled. Close containers when not in use. Refer to the Material Safety Data Sheet (MSDS), SECTIONS 3 and 8, for the most current data.STORAGE Storage Conditions:

Store containers closed. Ensure all containers are labeled. Close containers when not in use.Refer to the Material Safety Data Sheet (MSDS), SECTION 7, for the most current data.REMARKS If you need assistance or more information on this product please call your nearest Nalco Representative-For more news about Nalco Company. visit our website atwww.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION PORTA-FEED, NALCO and lhe Logo are trademarks of Nalco Company (10-27-2009)

All other trademarks are the property of their respective owner.IId1.o 'oipl.1y.

i"l I West Piehl 1.1pef ville. Illinoic 40'ý 3- It 14 Subsidiaries and Affiliates in Principal Locations Around the World@2010 Nalco Corrnposny All Rights Reserved SAFETY DATA SHEET Pd NALCOooo A4"'ALCOPRODUCT Nalco 73551 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: Nalco 73551 APPLICATION:

DEPOSIT PENETRANT COMPANY IDENTIFICATION

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 0 /1 FLAMMABILITY:

1/1 INSTABILITY:

0/ 0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITIONIINFORMATION ON INGREDIENTS Based on our hazard evaluation, none of the substances in this product are hazardous.

13. HAZARDS IDENTIFICATION

-*EMERGENCY OVERVIEW-*

CAUTION May cause irritation with prolonged contact.Do not get in eyes, on skin, on clothing.

Do not take internally.

Wear suitable protective clothing.

Keep container tightly closed. Flush affected area with water.May evolve oxides of carbon COx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: May cause irritation with prolonged contact.SKIN CONTACT: May cause irritation with prolonged contact.INGESTION:

Not a likely route of exposure.

No adverse effects expected.INHALATION:

Not a likely route of exposure.

No adverse effects expected.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/10

)NALCO SAFETY DATA SHEET PRODUCT Nalco 73551 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SYMPTOMS OF EXPOSURE: Acute : A review of available data does not identify any symptoms from exposure not previously mentioned.

Chronic: A review of available data does not identify any symptoms from exposure not previously mentioned.

AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

14. FIRST AID MEASURES EYE CONTACT.-Flush affected area with water. If symptoms develop, seek medical advice.SKIN CONTACT: Flush affected area with water. If symptoms develop, seek medical advice.INGESTION:

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. If symptoms develop, seek medical advice.INHALATION:

Remove to fresh air, treat symptomatically.

If symptoms develop, seek medical advice.NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

5s. FIRE FIGHTING MEASURES FLASH POINT: > 400 'F / > 200'C (COC)EXTINGUISHING MEDIA: This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable-Use extinguishing media appropriate for surrounding fire-FIRE AND EXPLOSION HAZARD: May evolve oxides of carbon (COx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/10 SAFETY DATA SHEET RNALCO PRODUCT Nalco 73551 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 6. ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Do not touch spilled material.

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so. Ventilate spill area if possible.METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water.7. HANDLING AND STORAGE HANDLING: Avoid eye and skin contact. Do not take internally.

Ensure all containers are labeled. Keep the containers closed when not in use.STORAGE CONDITIONS:

Store the containers tightly closed.8. EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: This product does not contain any substance that has an established exposure limit.ENGINEERING MEASURES: General ventilation is recommended.

RESPIRATORY PROTECTION:

Respiratory protection is not normally needed. If significant mists, vapors or aerosols are generated an approved respirator is recommended.

A suitable filter material depends on the amount and type of chemicals being handled.Consider the use of filter type: Multi-contaminant cartridge, with a Particulate pre-filter.

If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used.HAND PROTECTION:

Neoprene gloves Nitrile gloves Butyl gloves PVC gloves SKIN PROTECTION:

Wear standard protective clothing.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/10 P4NALCO SAFETY DATA SHEET PRODUCT Nalco 73551 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours)CHEMTREC EYE PROTECTION:

Wear chemical splash goggles.HYGIENE RECOMMENDATIONS:

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse.19. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Colorless ODOR None SPECIFIC GRAVITY 0.99 -1.03 @ 77 -F /25 -C SOLUBILITY IN WATER Complete pH (100 %) 6.6 -7.0 FREEZING POINT No data available.

Note: These physical properties are typical values for this product and are subject to change.10. STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Freezing temperatures.

MATERIALS TO AVOID: None known HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon 11. TOXICOLOGICAL INFORMATION The following results are for the polymer.ACUTE ORAL TOXICITY: Species: Rat LD50: 2,300 -16,000 mg/kg Test Descriptor:

The following results are for the polymer.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/10

)4NALCO SAFETY DATA SHEET PRODUCT Nalco 73551 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Low 12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product.ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Rainbow Trout 96 hrs > 1,000 ml/I Product Bluegill Sunfish 96 hrs > 1,000 mg/I Product Fathead Minnow 96 hrs 996 mg/I Product ACUTE INVERTEBRATE RESULTS: Species Exposure LC50 EC50 Test Descriptor Daphnia magna 48 hrs > 1,000 mg/I LProduct Ceriodaphnia dubia 48 hrs 1,320 mg/I Product CHRONIC FISH RESULTS: Species I Exposure NOEC / LOEC End Point I Test Descriptor Fathead Minnow 7 Days 250 mg/I / 500 mg/I Reproduction Product CHRONIC INVERTEBRATE RESULTS: Species I Test Type NOEC / LOEC End Point I Test Descriptor Ceriodaphnia dubia 3 Brood 125 mg/I / 250 mg/I Reproduction Product PERSISTENCY AND DEGRADATION:

Total Organic Carbon (TOC): 85,000 mg/I Chemical Oxygen Demand (COD): 250,000 mg/I Biological Oxygen Demand (BOD): Incubation Period I Value Test Descriptor 5 d, 4 mg/I Product Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5/10

)4NALCO SAFETY DATA SHEET PRODUCT Nalco 73551 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water I Soil/Sediment

<5% 10-30% 30-50%ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low If released into the environment, see CERCLA/SUPERFUND in Section 15.13. DISPOSAL CONSIDERATIONS If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.As a non-hazardous waste, it is not subject to federal regulation.

Consult state or local regulation for any additional handling, treatment or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION AIR TRANSPORT (ICAO/IATA)." Proper Shipping Name: MARINE TRANSPORT (IMDG/IMO):

PRODUCT IS NOT REGULATED DURING TRANSPORTATION PRODUCT IS NOT REGULATED DURING TRANSPORTATION Proper Shipping Name: Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/10 SAFETY DATA SHEET A41' PRODUCT Nalco 73551 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 15. REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, none of the substances in this product are hazardous.

CERCLA/SUPERFUND, 40 CFR 117, 302: Notification of spills of this product is not required: SARNSUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) -SECTIONS 302, 311, 312, AND 313 : SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does notcontain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)FOOD AND DRUG ADMINISTRATION (FDA) Federal Food, Drug and Cosmetic Act : When use situations necessitate compliance with FDA regulations, this product is acceptable under: 21 CFR 173.340 Defoaming Agents, 21 CFR 175.105 Adhesives, 21 CFR 176.200 Defoaming Agents used in coatings, 21 CFR 176.210 Defoaming agents used in the manufacture of paper and paperboard, 21 CFR 177.1200 Cellophane, 21 CFR 177.1400 Hydroxyethyl cellulose film, water-insoluble, 21 CFR 176.300 Slimicides, 21 CFR 178.3120 -Animal glue 176.300 limitation:

Must be used as an adjuvant in biocidal preparations.

Limitations:

no more than required to produce intended technical effect.NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is: 137540 This product is acceptable for treatment of cooling and retort water (G5) in and around food processing areas.This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/10 N4NALCO SAFETY DATA SHEET.PRODUCT Nalco 73551 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.4 / formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CLEAN AIR ACT, Sec. 112 (40 CFR 61, Hazardous Air Pollutants), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance with State Right to Know Laws: Water 7732-18-5 Polyalkylene glycol Proprietary NATIONAL REGULATIONS, CANADA: WORKPLACE HAZARDOUS MATERIALS INFORMATION SYSTEM (WHMIS): This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations (CPR)and the MSDS contains all the information required by the CPR.WHMIS CLASSIFICATION:

Not considered a WHMIS controlled product.CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/10

)4NALCO SAFETY DATA SHEET PRODUCT Nalco 73551 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).16. OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices:

We have evaluated our product's risk as follows:* The human risk is: Low* The environmental risk is: Low Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American.Conference of Governmental Industrial Hygienists, OH., (Ariel Insight CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS CD-ROM Version), Micromedex, Inc., Englewood, CO.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/10

)4NALCO SAFETY DATA SHEET PRODUCT Nalco 73551I EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued : 07/31/2009 Version Number: 1.14 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10 / 10

)4NALCO Product Budn 3D TRASAR 3DT185 Cooling Woter Corrosion Inhibitor PRODUCT DESCRIPTION AND APPLICATION 3DOTRASAR products are part of an innovative water treatment program that uses proven technology to prevent operational problems.

3D TRASAR compensates for both routine and special causes of system variation.

3D TRASAR programs provide a return on your investment through their unique control and diagnostic capabilities.

3D TRASAR 3DT185 is an aqueous solution of phosphoric acid. Its primary use is as an orthophosphate source for treatment of industrial cooling water systems. As such, it is an anodic corrosion inhibitor that must be paired up with an acceptable cathodic inhibitor from the 3D TRASAR product line.PHYSICAL & CHEMICAL PROPERTIES These properties are typical.Refer to the Material Safety Data Sheet (MSDS), SECTION 9, for the most current data.Form Density Specific Gravity @ 77*F [250C]pH [neat)Freeze-Thaw Recovery Viscosity 0 74°F [20°C]Flash Point Odor Color Solubility in Water ACTIVE CONSTITUENTS Component Phosphoric Acid Liquid 13.2 lbs/gal [I..58 kg/l]1.58<1.0 Not Available 21 cp None None Light Yellow Complete Function Mild Steel Corrosion Inhibition REGULATORY APPROVALS 3DT185 is intended for industrial use only. It must not be fed to potable water systems.Refer to the Material Safety Data Sheet (MSDS), SECTION 15 for the most recent information on approvals.

MATERIALS OF COMPATIBILITY Compatible CPVC EPDM FRP (bisphenol)

FRP (isophthalic)

Hypalon Kynar Neoprene Plasite 7122 (epoxy)Plasite 4100 (vinyl ester)Polyethylene (low density)Polyethylene (high density)Polypropylene PVC Viton Not Compatible Aluminum Buna-N Carbon Steel Silicone 65 Stainless Steel 304 Stainless Steel 316 DOSAGE AND FEEDING For complete dosage and feeding recommendations, consult your Nalco sales engineer.ENVIRONMENTAL AND TOXICITY DATA Refer to SECTIONS I I and 12 of the MSDS for all available mammalian and aquatic toxicity information.

Biological Oxygen Demand (5-day BOD.) Not Available Chemical Oxygen Demand (COD) Not Available Total Organic Carbon (TOO) Not Available SAFETY AND HANDLING 3DT185 is a corrosive product, and may cause tissue damage. Chemical-resistant gloves and safety goggles should be worn when handling 3DTi85. Read SECTION 6 of the MSDS for specific personal protective equipment (PPE)recommendations and SECTION 3 for health effects information.

This product contains the following Reportable Quantity (RQ) Substance.

Also listed is the .RQ for the product. If a reportable quantity of product is released, it requires notification to the NATIONAL RESPONSE CENTER, WASHINGTON.

D.C. (1-800-424-6602).

RQ Substance RQ Phosphoric Acid 6,700 lb STORAGE 3DT185 contains a reportable quantity (RQ) substance.

All storage vessels of 3DT185 must be in secondary containment if the storage capacity exceeds the RQ of 6,700 pounds. Refer to the Material Safety Data Sheet (MSDS), SECTION 7, for the most current data.Recommended in-plant storage limit is 12 months.REMARKS It you need assistance or more information on this product please call your nearest Nalco Representative.

For more news about Nalco Company. visit our website atwww.nalco.com.

For Medicti and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION 3D TRASAR, TRASAR. NALCO and the logo are registered trademarks of Nalco Company (10-3-2006)W tDiehl Vill-. Iflit:i. ; tiA-?

ed Af iits n Locations ,nryond tr~e P10tHl!0"0 Nck.=c' 7ovipany All Re~rA

• WNALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME. 3D TRASAR 3DT185 APPLICATION:

CORROSION INHIBITOR COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 3/3 FLAMMABILITY:

0/0 INSTABILITY:

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITIONIINFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

CAS NO 7664-38-2% (w/w)60.0- 100.0 Phosphoric Acid 13. 1 HAZARDS IDENTIFICATION 1**EMERGENCY OVERVIEW'DANGER Corrosive.

May cause tissue damage.Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water.Wear a face shield. Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots.Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas. May evolve oxides of phosphorus (POx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Corrosive.

Will cause eye bums and permanent tissue damage.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/11 SAFETY DATA SHEET)4"NALCOPRODUCT NNALCO 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SKIN CONTACT: Corrosive; causes permanent skin damage.INGESTION:

Corrosive; causes chemical bums to the mouth, throat and stomach.INHALATION:

Elevated temperatures or mechanical action may form vapors, mists or fumes which may be irritating to the eyes, nose, throat and lungs.HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. 1 FIRST AID MEASURES EYE CONTACT: Immediately flush eye with water for at least 15 minutes while holding eyelids open. PROMPT ACTION IS ESSENTIAL IN CASE OF CONTACT. Get immediate medical attention.

SKIN CONTACT: Immediately flush with plenty of water for at least 15 minutes. Use a mild soap if available.

For a large splash, flood body under a shower. Get immediate medical attention.

Contaminated clothing, shoes, and leather goods must be discarded or cleaned before re-use.INGESTION:

Get immediate medical attention.

DO NOT INDUCE VOMITING.

If conscious, washout mouth and give water to drink.INHALATION:

Remove to fresh air, treat symptomatically.

Get immediate medical attention.

NOTE TO PHYSICIAN:

Probable mucosal damage may contraindicate the use of gastric lavage. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. 1 FIRE FIGHTING MEASURES FLASH POINT: None EXTINGUISHING MEDIA: Not expected to bum. Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas. May evolve oxides of phosphorus (POx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/11 AWNALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.

Ensure clean-up is conducted by trained personnel only. Do not touch spilled material.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water.17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled.STORAGE CONDITIONS:

Store the containers tightly closed. Store in suitable labeled containers.

Store separately from bases.UNSUITABLE CONSTRUCTION MATERIAL: Product is corrosive to aluminum.

Aluminum should not be used for feed, storage, or transportation systems., This product is corrosive to mild steel. Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.18. 1 EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Phosphoric Acid Category: ACGIH/TFWA ACGIH/STEL OSHA Z11PEL ppm mg/m3 Non-Standard Unit 3 1 ENGINEERING MEASURES: Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/11 NNALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-93 (24 Hours) CHEMTREC General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors or aerosols are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots. A full slicker suit is recommended if gross exposure is possible.EYE PROTECTION:

Wear a face shield with chemical splash goggles.HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Eye wash station and safety shower are necessary.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Light yellow ODOR Acidic SPECIFIC GRAVITY 1.58 @ 74 -F / 23.3 -C SOLUBILITY IN WATER Complete pH (100 %) <1 VISCOSITY 21 cps @ 74 °F /20 °C FREEZING POINT 20 °F / -6.7 °C BOILING POINT 217 *F / 103 °C VOC CONTENT 0 % Calculated Note: These physical properties are typical values for this product and are subject to change.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/11 N4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 110. I STABILITY AND REACTIVITY I STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Extremes of temperature MATERIALS TO AVOID: Contact with strong alkalies (e.g. ammonia and its solutions, carbonates, sodium hydroxide (caustic), potassium hydroxide, calcium hydroxide (lime), cyanide, sulfide, hypochlorites, chlorites) may generate heat, splattedng or boiling and toxic vapors. Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of phosphorus I 11. I TOXICOLOGICAL INFORMATION I The following results are for the product.ACUTE ORAL TOXICITY: Species: Rat LD50: 1,530 mg/kg Test Descriptor:

Product ACUTE DERMAL TOXICITY: Species: Rabbit LD50: 2,740 mg/kg Test Descriptor:

Product PRIMARY SKIN IRRITATION:

Species: Rabbit Draize Score: 8/8.0 Test Descriptor:

Product PRIMARY EYE IRRITATION:

Species: Draize Score: Test Descriptor Rabbit 110 /110.0 Product Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5/11 AWNALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT1 85 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: High 12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product.ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Mosquito Fish (Gambusia 96 hrs 184 mg/i Product spp.)Fathead Minnow 96 hrs 3,660 mg/I Product Rainbow Trout 96 hrs 14,844 mg/I Product ACUTE INVERTEBRATE RESULTS: Species Exposure LC50 EC50 Test Descriptor Daphnia magna 48 hrs 2,083 mg/I Product Ceriodaphnia dubia 48 hrs 1,625 mg/l Product AQUATIC MICROORGANISM RESULTS: Species I Exposure EC50/LC50 I Test Descriptor Pseudomonas putida > 1,000 mg/l Product CHRONIC FISH RESULTS: Species Exposure NOEC / LOEC End Point Test Descriptor Fathead Minnow 7 Days 1,250 mg/l / 2,500 Product mg/I MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/11

)41NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Air Water SoiV/Sediment

<5% 30 -50% 50 -70%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low If released into the environment, see CERCLANSUPERFUND in Section 15.113. I DISPOSAL CONSIDERATIONS I If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.Hazardous Waste: D002 Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility.

Consult local, state, and federal regulations for specific requirements.

114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product.LAND TRANSPORT:

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: PHOSPHORIC ACID. SOLUTION UN 1805 8 III Flash Point: None DOT Reportable Quantity (per package): DOT RQ Component:

6,660 lbs PHOSPHORIC ACID Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/11

)4NALCO SAFETY DATA SHEET PRODUCT 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: IATA Cargo Packing Instructions:

IATA Cargo Aircraft Limit: MARINE TRANSPORT (IMDG/IMO):

PHOSPHORIC ACID SOLUTION UN 1805 8 III 821 60 L (Max net quantity per package)PHOSPHORIC ACID SOLUTION UN 1805 8 III Proper Shipping Name: Technical Name(s): UNAiD No: Hazard Class -Primary: Packing Group: 115. I REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) islare shown below.Phosphoric Acid: Corrosive CERCLA/SUPERFUND, 40 CFR 302: This product contains the following Reportable Quantity (RQ) Substance.

Also listed is the RQ for the product. If a reportable quantity of product is released, it requires notification to the NATIONAL RESPONSE CENTER, WASHINGTON, D.C. (1-800-424-8802).

RO Substance Phosphoric Acid RQ 6,660 Ibs SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370) : Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/11

,NALCO iSAFETY DATA SHEET 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC X Immediate (Acute) Health Hazard-Delayed (Chronic)

Health Hazard-Fire Hazard-Sudden Release of Pressure Hazard-Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.41 formerly Sec. 311 : This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

Citations 0 Phosphoric Acid Sec. 311 CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance with State Right to Know Laws: Phosphoric Acid 7664-38-2 INTERNATIONAL CHEMICAL CONTROL LAWS: Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/11 AWNALCO SAFETY DATA SHEET I PRODUCT 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300(24 Hours) CHEMTREC CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).16. OTHER INFORMATION This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel InsightTM CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10/11 AWNALCO SAFETY DATA SHEET SPRODUCT 3D TRASAR 3DT185 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T m CD-ROM Version).

Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight"T (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T m CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPSTm CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued: 04101/2010 Version Number : 1.7 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 11/11 P4NALCO Prodct Buletfin CAT-FLOC Coagulant PRODUCT DESCRIPTION AND APPLICATION CAT-FLOC is a medium high molecular weight, liquid cationic polyelectrolyte.

It is used as a primary coagulant or coagulant aid in water and wastewater clarification.

It is highly effective as a replacement for, or can be used in conjunction with, inorganic coagulants such as ferric salts or alum. CAT-FLOC is chlorine resistant and effective over a broad pH range.Features:

Benefits: Liquid polymer Easy to feed NSF Intemational certified Acceptable for use in drinking water applications Unique high charge, medium high molecular Effective in a wide range of wastewater and water weight cationic polymer clarification applications Forms a strong floc Improved finished water quality May reduce or replace inorganic coagulants Reduce sludge generation PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS) for the most current data.Form: Appearance:

Specific Gravity @771F [2SC]: pH (Neat) 0771F t26Cl: Freeze Foint.Freeze-Thaw Recovery: Viscosity

@77'F [25'C1: Flash Point (PMCC): Liquid Viscous, clear, pole yellow to amber 1.04 5-6 14'F [-9.9 CI May stratify upon freezing.

Agitate to make uniform.400 -800 cp>200 F [>93 01 REGULATORY APPROVALS See product WDS for complete regulatory information.

This product has received NSF/International certification under ANSI/NSF Standard 60 in the coagulation and flocculation category.

The official name is Poly (Diallyldimethylammonium Chloride) (pDADMACI." Maximum product application dosage is: 57 mgfl.CANADIAN FOOD INSPECTION AGENCY (CFIA): Authorized use is under category'.

WI This product is Kosher approved.MATERIALS OF COMPATIBILITY CAT-FLOC polymer is moderately corrosive to iron and copper, including their alloys. Storage tanks, chemical feed systems, and piping should be constructed of high density (HDPE) or crosslinked (XLPE)polyethylene, fiberglass (FRP) with polyester or vinylester resins, epoxy- or vinylester-lined steel.Compatible Polyethylene

-High Density Polypropylene Polyethylene

-Crosslinked PVC CPVC Kynar Viton FRP (bisphenol)

FRP (isophthalic)

Plasite 7122 (epoxy)Plasite 4100 (vinyl estel)Stainless Steel 304 & 316 Ouna-N Rubber Neoprene Not Compatible Carbon Steel Brass DOSAGE AND FEEDING CAT-FLOC should be fed via a closed feed system. A closed feed system is defined as a system in which fluid is moved from a closed storage vessel into a treatedmedia without exposure to the atmosphere except through normal venting or pressure relief devices.CAT-IFLOC I polymer may be fed neat as long as in-line dilution is provided.

However, dilution to 1% as product is recommended to assure better contact of the coagulant with theimpurities in the water. Neat polymer feed systems should be capable of handling 1.000 cps viscosity material.Product feed rate will be site and application specific, and may vary as conditions change. Product demand may be determined by a screening test using Jar Test procedures.

The dosage of CAT-FLOC will be determined based on the required clarity of the effluent water from the clarification equipment.

Typically optical turbidity units such as the NTU or JTU are measured using a turbidimeter.

Dosage control should be based on meeting required turbidity specifications.

ENVIRONMENTAL AND TOXICITY DATA Refer to the product's Material Safety Data Sheet. SECTIONS 11 and 12, for all aquatic and mammalian information.

SAFETY AND HANDLING Read SECTION 6 of the MSDS for specific personal protective equipment (PPE) recommendations and SECTION 3 for health effects information.

As part of good industrial and personal hygiene and safety procedure, avoid all unnecessary exposure to the product and ensure prompt removal from eyes, skin and clothing.

Wash thoroughly after handling.Keep container closed when not in use.STORAGE Product must be maintained at 38*F (3*C) or higher. Protect from low temperatures.

Do not store in stainless steel bulk tanks.REMARKS If you need assistance or more information on this product please call your nearest Nalco Representative.

For mare news aboutNalco Company, visit ourwebsite atwww.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number[ADDITIONAL INFORMATION CAT-FLOC and NALCO are registered trodemv*s of Nalco Company (5-27-05) and its related comparies tiko C : I .I jW& t [ Piih I. Ali : l vill,. lili1i s-A#tisiro:_

in: P rncip:i L;:,c ..'rcnd, wl-,eV ~: 3n2,C!1l bi~, ofrP)an*,

N NALCO SAFETY DATA SHEET EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: CAT-FLOC 8103 PLUS APPLICATION WATER TREATMENTWATER CLARIFICATION AID COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 0/1 FLAMMABILITY:

1/1 INSTABILITY:

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITIONIINFORMATION ON INGREDIENTS Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

13. 1 HAZARDS IDENTIFICATION

.*EMERGENCY OVERVIEW**

CAUTION May cause irritation with prolonged contact.Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water.Wear suitable protective clothing.May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

May evolve ammonia under fire conditions.

May evolve HCI under fire conditions.

PRIMARY ROUTES OF EXPOSURE : Eye, Skin HUMAN HEALTH HAZARDS -ACUTE.: EYE CONTACT: May cause irritation with prolonged contact.SKIN CONTACT : May cause irritation with prolonged contact.INGESTION:

Not a likely route of exposure.

No adverse effects expected.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/11 SAFETY DATA SHEET AV PRODUCT PNALCO CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INHALATION:

Not a likely route of exposure.

No adverse effects expected.SYMPTOMS OF EXPOSURE: Acute : A review of available data does not identify any symptoms from exposure not previously mentioned.

Chronic: A review of available data does not identify any symptoms from exposure not previously mentioned.

AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions:

14. 1 FIRST AID MEASURES EYE CONTACT: Flush affected area'with water. If symptoms develop, seek medical advice.SKIN CONTACT: Remove contaminated clothing.

Wash off affected area immediately with plenty of water. If symptoms develop, seek medical advice.INGESTION:

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. If symptoms develop, seek medical advice.INHALATION:

Remove to fresh air, treat symptomatically.

If symptoms develop, seek medical advice.NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

5. FIRE FIGHTING MEASURES FLASH POINT: Not flammable EXTINGUISHING MEDIA: This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable.

Use extinguishing media appropriate for surrounding fire. Water mist may be used to cool closed containers.

FIRE AND EXPLOSION HAZARD: May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

May evolve ammonia under fire conditions.

May evolve HCI under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road ° Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/11

)4NALCO SAFETY DATA SHEET I PRODUCT CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 6. ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Notify appropriate government, occupational health and safety and environmental authorities.

Do not touch spilled material.

Stop or reduce any leaks if it is safe to do so. Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

This product is toxic to fish. It should not be directly discharged into lakes, ponds, streams, waterways or public water supplies.I 7. I HANDLING AND STORAGE I HANDLING: Do not take internally.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled. Avoid eye and skin contact.STORAGE CONDITIONS:

Store separately from oxidizers.

Store the containers tightly closed. Protect product from freezing.SUITABLE CONSTRUCTION MATERIAL: HDPE (high density polyethylene), Neoprene, Brass, Buna-N, Polyurethane, PVC, Polypropylene, Polyethylene, Stainless Steel 304, EPDM, Epoxy phenolic resin, 100% phenolic resin liner, Chlorosulfonated polyethylene rubber, Fluoroelastomer

18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: This product does not contain any substance that has an established exposure limit.ENGINEERING MEASURES: General ventilation is recommended.

RESPIRATORY PROTECTION:

Respiratory protection is not normally needed.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/11

)4NALCO SAFETY DATA SHEET PRODUCT CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear standard protective clothing.EYE PROTECTION:

Wear chemical splash goggles.HYGIENE RECOMMENDATIONS:

Keep an eye wash fountain available.

Keep a safety shower available.

19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Viscous liquid APPEARANCE Clear Yellow ODOR None SPECIFIC GRAVITY 1.018 -1.058 @ 77 -F /25 -C DENSITY 8.5 -8.81 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 5.0 -8.0 VISCOSITY

< 1,050 cps @ 77 °F / 25.°C FREEZING POINT 14 °F / -9.9 'C BOILING POINT > 212 'F / > 100 'C VAPOR PRESSURE Same as water VAPOR DENSITY Same as water VOC CONTENT 0.00 % EPA Method 24 Note: These physical properties are typical values for this product and are subject to change.10.- STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID : Avoid extremes of temperature.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/11

)4NALCO SAFETY DATA SHEET PRODUCT CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC MATERIALS TO AVOID: Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon, Oxides of nitrogen, May evolve ammonia under fire conditions., HCI 11. TOXICOLOGICAL INFORMATION The following results are for the polymer.ACUTE ORAL TOXICITY : Species: Rat LD50: 25,500 mg/kg Test Descriptor:

Similar Product ACUTE DERMAL TOXICITY: Species: Rabbit LD50: > 20,000 mg/kg Test Descriptor:

40% Active Ingredient PRIMARY SKIN IRRITATION:

Species: Rabbit Draize Score: 1.0 /8.0 Test Descriptor:

Similar Product PRIMARY EYE IRRITATION:

Species: Rabbit Draize Score: 8 /110.0 Test Descriptor:

Similar Product SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Low Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5/11

)4NALCO SAFETY DATA SHEET PRODUCT CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The tests for (products or similar products) were performed in clean water as set forth by USEPA (EPN600/4-901027).

In order to evaluate the potential toxicity mitigation, the tests for (representative polymers) were performed in environmentally relevant water with dissolved organic carbon (DOC: 4.5 mg/I). The toxicity of this product is due to an external mode of action, e.g., suffocation or immobilization.

In the presence of suspended material, e.g., DOC, the polymers are bound to suspended material and the bioavailability is substantially reduced. As a result, the toxicity is expected to be lower. Under normal use and discharge conditions, the LC50 values of the representative polymers tested in the presence of DOC are expected to apply to this product. However, for large spills, the clean water data is more applicable.

ACUTE FISH RESULTS " Species Exposure LC50 Test Descriptor Rainbow Trout 96 hrs 0.85 mg/I Similar product tested in clean water Fathead Minnow 96 hrs 3.29 mg/I Product tested in clean water Inland Silverside 96 hrs > 5,000 mg/I Product tested in synthetic sea water Zebra Danio 96 hrs 10 -100 mg/I Representative polymer tested in water with DOC ACUTE INVERTEBRATE RESULTS: Species Exposure LC50 EC50 Test Descriptor Ceriodaphnia dubia 48 hrs 2.5 mg/I Product tested in clean water Ceriodaphnia dubia 48 hrs 1.09 mg/I Similar product tested in clean water Daphnia magna 48 hrs 2.06 mg/I Similar product tested in dean water Daphnia magna 48 hrs 10 -100 mg/I Representative polymer tested in.I _ I I water with DOC CHRONIC INVERTEBRATE RESULTS: Species I TestType I NOEC/LOEC End Point I Test Descriptor Ceriodaphnia dubia 3 Brood 1.25 mg/ / 2.5 mg/l Reproduction Product ADDITIONAL ECOLOGICAL DATA NOEC on earthworm:

> 1000 mg/I (representative polymer) AOX information:

Product contains no organic halogens.MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/11 P4NALCO SAFETY DATA SHEET PRODUCT CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Air Water Soil/Sediment

<5% 30 -50% 50 -70%The portion in water is expected to be soluble or dispersible..

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: High OTHER INFORMATION The hazard characterization is based on the tests or potential hazard in the clean water.If released into the environment, see CERCLA/SUPERFUND in Section 15.113. 1 DISPOSAL CONSIDERATIONS If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.As a non-hazardous waste, it is not subject to federal regulation.

Consult state or local regulation for any additional handling, treatment or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION AIR TRANSPORT (ICAO/IATA)

Proper Shipping Name: MARINE TRANSPORT (IMDG/IMO):

PRODUCT IS NOT REGULATED DURING TRANSPORTATION PRODUCT IS NOT REGULATED DURING TRANSPORTATION Proper Shipping Name: Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/11

)4NALCO SAFETY DATA SHEET PRODUCT CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 115. 1 REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use .of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

CERCLA/SUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)FOOD AND DRUG ADMINISTRATION (FDA) Federal Food, Drug and Cosmetic Act: When use situations necessitate compliance with FDA regulations, this product is acceptable under: 21 CFR 176.170 Components of paper and paperboard in contact with aqueous and fatty foods and 21 CFR 176.180 Components of paper and paperboard in contact with dry foods.1) As a flocculant employed prior to the sheet-forming operation in the manufacture of paper and paperboard and used at a level not to exceed 10 mg/L (10 ppm) of influent water. 2) As a pigment dispersant.

and/or retention aid prior to the sheet-forming operation at an active polymer level not to exceed 0.5% of finished paper and paperboard with the level of residual monomer not to exceed 1 weight percent of the polymer (dry basis). 3) As a pigment dispersant in coatings at an active polymer level not to exceed 0.18% of finished paper and paperboard.

This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/11

)PNALCO SAFETY DATA SHEET PRODUCT CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC NSF INTERNATIONAL:

This product has received NSF/International certification under NSF/ANSI Standard 60 in the coagulation and flocculation category.

The official name is "Poly (Diallyldimethylammonium Chloride) (pDADMAC)." Maximum product application dosage is: 57 mg/I.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15/ formerly Sec. 307,40 CFR 116.4 / formerly Sec. 311: Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substance(s) in this preparation are included in or exempted from the EINECS or ELINCS inventories Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/11 SAFETY DATA SHEET NALCO CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)NEW ZEALAND All substances in this product comply with the Hazardous Substances and New Organisms (HSNO) Act 1996,and are listed on or are exempt from the New Zealand Inventory of Chemicals.

PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).116. 1 OTHER INFORMATION This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Adel InsightT M CD-ROM Version), Adel Research Corp., Bethesda, MD.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10/11

)4NALCO SAFETY DATA SHEET PRODUCT CAT-FLOC 8103 PLUS EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel InsightTM (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued: 07/15/2010 Version Number : 4.9 Nalco Company 1601 W. Diehl Road .Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 11/11 AWNALCO Product BuIlefi, TRASARClosed System Treatment PRODUCT DESCRIPTION AND APPLICATION TRASAR 1 is a liquid closed cooling system corrosion inhibitor.

TRASAR ý inhibits corrosion of ferrous and copper metals and their alloys. Corrosion and deposit control is beneficial to sound closed system operation to maintain efficient operation, reduce maintenance, maintain efficient heat transfer and improve equipment service life. This product contains less than 200 ppm of chloride and does not contain nitrite.PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS), SECTION 9, for the most current data.Form Liquid Color Clear Yellow Density a.9 lbs/gal 11.07 kg/l]Specific Gravity 1.15 Q 71 F [25.5 C)pH (neat) 9.5- 12.5 Freeze Point 25-F J-3.9-C)Freeze-Thaw Recovery Compiete Boiling Point 0 760 mm Hg >212TF J>I00C]Viscosity

@ TF 125C) Not Available Flash Point (PMCC) >212*F J>100-C]Odor None VOC Content None Solubility in Water Complete ACTIVE CONSTITUENTS Active Funcdion Molybdenum Mild Steel Corrosion Inhibition Tolyltriazole (M) Yellow Metal Corrosion Control Borate pH Buffer TRASAR #2 Product Monitoring and Control REGULATORY APPROVALS TRASAR E is not approved for potable water systems, and can only be used in industrial systems, where the possibility of contamination with a potable system cannot occur.Refer to the Material Safety Data Sheet (MSDS). SECTION 15 for the most recent information on approvals MATERIALS OF COMPATIBILITY Compatible Not Compatible Polyethylene Buna-N Polypropylene Carbon Steel Polyvinyl chloride Neoprene CPVC Viton@ synthetic rubber Stainless Steel 304 Stainless Steel 316 Kynar Fluoropotymer Plasite 4100 (Vinyl Ester)Plasite 7122 (EpoxyA Silicone 65 FPR ( Bisphenol

& Isophthalic)

EPDM DOSAGE AND FEEDING For dosage and feeding recommendations, contact your Nalco sales engineer.ENVIRONMENTAL AND TOXICITY DATA Refer to sections I I and 12 of the MSDS for Toxicological and Ecological Properties.

SAFETY AND HANDLING Chemical resistant gloves and safety goggles should be worn when handling TRASAR IM .Read Section a of the WDS for specific personal protective equipment (PPE) recommendations and Section 3 for health effects information.

STORAGE TRASAR l should be stored in a location where the product temperature can be kept between 35°F [2*Cj and 120*F [49*C].Store the containers tightly closed. Store in suitable labelled containers.

Recommended in-plant storage limit is six months.REMARKS If you need assistance or more information on this product please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products.

please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION TRASAR, Nolco and the logo are trademaks of Nadco Company (6121/061 AM other tra$ernaks are the property of their respective owner-filak , o I1:, , "o I West Pielil IIll.)ef Ville. Iilinois 096'.:t- I1"M GLfr':1'i ie$

• frfAl iliates in Princial Locations

,.,-nd the ,orl(d'©201 0 Naico Coii:,- ny -'I RAgiots Reserved 0 NALCO SAFETY DATA SHEET PRODUCT TRASAR TRACI 104 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC S1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: TRASAR TRAC104 APPLICATION:

CLOSED LOOP TREATMENT COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 1 /1 FLAMMABILITY:

0/0 INSTABILITY:

0/0 OTHER: 0.= Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Hazardous Substance(s)

CAS NO % (w/w)Sodium Molybdate 7631-95-0 5.0 -10.0 13. 1 HAZARDS IDENTIFICATION

• • EMERGENCY OVERVIEW**

CAUTION May cause irritation with prolonged contact.Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water.Wear suitable protective clothing.Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: May cause irritation with prolonged contact.SKIN CONTACT: May cause irritation with prolonged contact.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/10 SAFETY DATA SHEET)4NALCO TRASAR TRAC 104 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INGESTION:

Not a likely route of exposure.

There may be irritation to the gastro-intestinal tract with nausea and vomiting.INHALATION:

Not a likely route of exposure.

Aerosols or product mist may irritate the upper respiratory tract.HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. 1 FIRST AID MEASURES EYE CONTACT: Immediately flush with, plenty of water for at least 15 minutes. If symptoms develop, seek medical advice.SKIN CONTACT Flush with large amounts of water. Use soap if available.

If symptoms develop, seek medical advice.INGESTION:

Get medical attention.

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink.INHALATION:

Remove to fresh air, treat symptomatically.

If symptoms develop, seek medical advice.NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. 1 FIRE FIGHTING MEASURES FLASH POINT: > 200 F/> 93.3 °C Estimated EXTINGUISHING MEDIA: Not expected to burn. Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING : In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/10 SAFETY DATA SHEET)041"NALC PRODUCT N4NALC0 TRASAR TRAC 104 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 6. ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until dean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.METHODS FOR CLEANING UP : SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS.:

Do not contaminate surface water.7. HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled. Do not mix with acids.STORAGE CONDITIONS:

Store in suitable labeled containers.

Store the containers tightly closed. Store separately from acids..SUITABLE CONSTRUCTION MATERIAL: Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.18. 1 EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Category:

ppm mg/m3 Non-Standard Unit Molybdenum (as Mo), Soluble Compounds as Mo ACGIH/TWA 0.5 (Respirable fraction.)

Molybdenum (as Mo), Soluble Compounds as Mo OSHA ZiIPEL 5 ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/10 N NALCO SAFETY DATA SHEET EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors, aerosols, or dusts are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear standard protective clothing.EYE PROTECTION:

Wear safety glasses with side-shields.

HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Low 19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Yellow ODOR None SPECIFIC GRAVITY 1.15 @ 78.0°F/25.5°C DENSITY 9.5 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 9.5 -12.5 VOC CONTENT 0.0 % Calculated Note: These physical properties are typical values for this product and are subject to change.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4110

)4NALCO SAFETY DATA SHEETI PRODUCT TRASAR TRAC 104 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 110. I STABILITY AND REACTIVITY I STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Avoid extremes of temperature.

MATERIALS TO AVOID: Acids Contact with strong acids (e.g. sulfuric, phosphoric, nitric, hydrochloric, chromic, sulfonic) may generate heat, splattering or boiling and toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon 11. TOXICOLOGICAL INFORMATION No toxicity studies have been conducted on this product.SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Moderate 112. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product, unless otherwise indicated.

ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Rainbow Trout I 96 hrs 43,674 mg/I Product Fathead Minnow 96 hrs > 5,000 m/I Product ACUTE INVERTEBRATE RESULTS: I Species I Exposure ILC50 EC50 I Test Descriptor Ceriodaphnia dubia 48 hrs > 5,000 m/I Product Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5/10

)4NALCO SAFETY DATA SHEET PRODUCT TRASAR TRAC 104 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, Water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 30 -50% 50 -70%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low Based on our recommended product application and the product's characteristics, the potential environmental exposure is: Low If released into the environment, see CERCLA/SUPERFUND in Section 15.13. DISPOSAL CONSIDERATIONS If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.Hazardous Waste: D002 Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility.

Consult local, state, and federal regulations for specific requirements.

Empty drums should be taken for recycling, recovery, or disposal through a suitably qualified or licensed contractor.

14. TRANSPORT INFORMATION The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name: CORROSIVE LIQUID, N.O.S.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/10

)4NALCO SAFETY DATA SHEET PRODUCT TRASAR TRAC 104 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Technical Name(s): UN/ID No : Hazard Class -Primary: Packing Group: Flash Point: SODIUM TOLYLTRIAZOLE, SODIUM METABORATE UN 1760 8 III> 200 F/> 93.3 °C AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: Technical Name(s)UN/ID No: Hazard Class -Primary Packing Group : IATA Cargo Packing Instructions:

IATA Cargo Aircraft Limit MARINE TRANSPORT (IMDG/IMO):

CORROSIVE LIQUID, N.O.S.SODIUM TOLYLTRIAZOLE, SODIUM METABORATE UN 1760 8 III 820 60 L (Max net quantity per package)CORROSIVE LIQUID, N.O.S.SODIUM TOLYLTRIAZOLE, SODIUM METABORATE UN 1760 8 III Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group : 15. REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Sodium Molybdate:

Exposure Limit -Compound Class CERCLA/SUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE 111) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/10 PNALCO SAFETY DATA SHEET PRODUCT TRASAR TRACI 104 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard Delayed (Chronic)

Health Hazard Fire Hazard Sudden Release of Pressure Hazard Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is: 141491 This product is acceptable for treating boilers, steam lines, and/or cooling systems where neither the treated water nor the steam produced may contact edible products in and around food processing areas, excluding such use in areas where meat and poultry are processed (G10).FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4/formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/10 SAFETY DATA SHEET)04 LCO PRODUCT NALCO I"°c TRASAR TRAC 104 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substance(s) in this preparation are included in or exempted from the EINECS or ELINCS inventories JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).116.. !OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Low* The environmental risk is: Low Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/10

)4NALCO SAFETY DATA SHEET PRODUCT TRASAR TRACI 04 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Adel InsightTM CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel InsightTM CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel InsightTM (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Adel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Prepared By: SHE Department Date issued: 10/25/2010 Version Number: 1.6 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10/10 AWNALCO Prfaodct oulef TRASAR@Traced Closed System Treatment PRODUCT DESCRIPTION AND APPLICATION TRASAR mis a traced, corrosion inhibitor blend that protects all metals found in closed recirculating system. TRASAR is easy to apply and control. A built-in pH buffer adjusts system water pH to the optimum range to minimize corrosion.

An indicating dye makes leaks easy to detect. TRASAR Technology allows for continuous on-line measurement and control. TRASAR is compatible with uninhibited antifreezes and has no adverse effect on gaskets, pump seal and other nonmetalic system components.

PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MDS), SECTION 9, for the most current data.Form Liquid Density 9.3 -9.7 lb/gal [1.12 -1.16 kg/i]Specific Gravity at 77F [2501 1.12-1.16 pH (neat) 11.1- 11.8 Freeze-Thaw Recovery Complete Flash Point None Odor Slight Organic Freeze Point -20'F [-29ýC[Viscosity

@ 60:F [160] 4 cp Solubility in Water Complete Appearance Clear, Dark Red ACTIVE CONSTITUENTS Component Nitrite/Nitrate Borate Silicate Azole Funcdion Corrosion Inhibitor pH Buffer Aluminum Corrosion Inhibitor Copper Corrosion Inhibition Dispersency

& Stabilization Polymer REGULATORY APPROVALS TRASAR is intended for industrial use only. It should not be fed to potable waler systems.Refer to the Material Safety Data Sheet (MSDS), SECTION 15 for the most recent information on approvals.

MATERIALS OF COMPATIBILITY Compatible Brass Stainless Steel 304 & 316 Carbon Steel Nickel Polyvinyl chloride -PVC Polyethylene Not compatible Aluminum Plasite 6000 Plasite 7122 Polypropylene Neoprene Buna-N Hypalon material Teflon material Vinyl viton material DOSAGE AND FEEDING The specific dosage for TRASAR 1 will vary depending upon the operating conditions and makeup water characteristics of your system. Consult your Nalco sales engineer for specific recommendations for your system.TRASAR may be added directly to the system either as received or any dilution in water. Dilution should be made with softened water.ENVIRONMENTAL AND TOXICITY DATA Biological Oxygen Demand (5-day BOD.) Not Available Chemical Oxygen Demand (COD) 67,000 ppm Total Organic Carbon (TOC) 37,000 ppm Refer to SECT1ONS 1 I and 12 of the Material Safety Data Sheet for all available mammalian and aquatic toxicity information.

SAFETY AND HANDLING TRASAR is a mildly alkaline product that may cause eye or skin irritation.

Chemical-resistant gloves and safety goggles should be worn when handling TRASAR .TRASAR contains a reportable quantity substance (RQ). All storage vessels of TRASAR N should be in secondary containment if the storage capacity exceeds the RQ of 2,000 pounds. Refer to the Material Safety Data Sheet (MSDS), SECTIONS 3 and 8, for the most current data.STORAGE TRASAR should be stored in a location where the product temperature can be kept between -20*F[-291C] and 120"F [499C1.Recommended in-plant storage limit is six months. Refer to the Material Safety Data Sheet (MSDS), SECTION 7, for the most current data.REMARKS If you need assistance or mare information on this product please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website atwww.nalco-com.

For Medical and Transportation Emergencies involvng Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION TRASAR. NALCO and the Logo are trademarks of Nalco Company (3-18-2010)

All other trademarks are the property of their respective owners.lI.-Aco Co ~~W. l4.I West Dliehil Po.1. fIaper Ville. llliliio 19Pf-It~.Subsidianr-es snd At Wfales in Prclpal Lscafions Arc:undth ha.yj AAI}! C. ~n cn.n A!! Fwptnnstsrs

)4 NALCO SAFETY DATA SHEET PRODUCT TRASAR TRACIO02 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: TRASARTRAC102 APPLICATION:

CLOSED LOOP TREATMENT COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 2 /2* FLAMMABILITY:

1/1 INSTABILITY:

0/ 0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 2. COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

Sodium Nitrite Sodium Tetraborate Sodium Metasilicate Sodium Nitrate Sodium Mercaptobenzothiazole CAS NO 7632-00-0 1330-43-4 6834-92-0 7631-99-4 2492-26-4% (w/w)1.0- 5.0 1.0- 5.0 1.0- 5.0 1.0- 5.0 0.1 -1.0 13. 1 HAZARDS IDENTIFICATION I**EMERGENCY OVERVIEW**

WARNING Contains sodium nitrite. May be harmful or fatal if swallowed.

Substances in the product can lead to the formation of methemoglobin.

Unborn children are particularly sensitive to methemoglobinemia.

May cause skin and eye irritation.

May cause sensitization by skin contact.Do not get in eyes, on skin, on clothing.

Do not take internally.

Keep container tightly closed. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. If swallowed, seek medical advice immediately and show this container or label.Wear suitable protective clothing, gloves and eye/face protection.

Not flammable or combustible.

If product is allowed to dry, the sodium nitrite is an oxidizing agent and can initiate the combustion of other materials.

May evolve oxides of nitrogen (NOx) under fire conditions.

May evolve oxides of carbon (COx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.1/11 A4NALCO SAFETY DATA SHEET PRODUCT TRASAR TRAC102 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Can cause moderate irritation.

SKIN CONTACT: Can cause moderate irritation.

May cause sensitization by skin contact.INGESTION:

Not a likely route of exposure.

Large exposures may be fatal. Ingestion of sodium nitrite can cause methemoglobinemia which can lead to cyanosis and possible death. Pregnant women and their fetuses are particularly sensitive to the effects of methemoglobinemia.

INHALATION:

Not a likely route of exposure.

Aerosols or product mist may irritate the upper respiratory tract.AGGRAVATION OF EXISTING CONDITIONS:

Sodium Nitrite. Pregnant women are particularly sensitive to methemoglobinemia.

HUMAN HEALTH HAZARDS -CHRONIC: Repeated ingestion of small amounts of sodium nitrite causes drops in blood pressure, rapid pulse, headaches and visual disturbances.

It may also react with organic amines in the body to form carcinogenic nitrosamines.

14. 1 FIRST AID MEASURES EYE CONTACT: Immediately flush eye with water for at least 15 minutes while holding eyelids open. Get medical attention.

SKIN CONTACT: Immediately flush with plenty of water for at least 15 minutes. Get medical attention.

INGESTION:

Induce vomiting if the patient is fully conscious.

If conscious, washout mouth and give water to drink. Get immediate medical attention.

INHALATION:

Remove to fresh air, treat symptomatically.

If symptoms develop, seek medical advice.NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

Measures against circulatory shock, respiratory depression and convulsions may be needed.15. 1 FIRE FIGHTING MEASURES FLASH POINT: Not applicable LOWER EXPLOSION LIMIT: Not flammable Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.2/11 SAFETY DATA SHEET)4 NALCO PRODUCT TRASAR TRAC1 02 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC UPPER EXPLOSION LIMIT: Not flammable EXTINGUISHING MEDIA: Not expected to burn. Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

If product is allowed to dry, the sodium nitrite is an oxidizing agent and can initiate the combustion of other materials.

May evolve oxides of nitrogen (NOx) under fire conditions.

May evolve oxides of carbon (COx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Ensure clean-up is conducted by trained personnel only. Ventilate spill area if possible.

Do not touch spilled material.

Stop or reduce any leaks if it is safe to do so. Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Wash site of spillage thoroughly with water. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water.17. 1 HANDLING AND STORAGE HANDLING: Avoid eye and skin contact. Do not take internally.

Do not get in eyes, on skin, on clothing.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled. Keep the containers closed when not in use. Use with adequate ventilation.

STORAGE CONDITIONS:

Store the containers tightly closed. Store in suitable labeled containers.

Store separately from acids.SUITABLE CONSTRUCTION MATERIAL: Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use., Stainless Steel 304, Stainless Steel 316L, Natural rubber, HDPE (high density polyethylene), Polypropylene, PTFE, Perfluoroelastomer, Fluoroelastomer Nalco Company 1601 W. Diehl Road- Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.3/11 N4NALCO EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC UNSUITABLE CONSTRUCTION MATERIAL: Carbon Steel C1018, Epoxyresin coating 18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Borates, Tetra, Sodium Salts -- Anhydrous (Inhalable fraction.)

Category: ACGIH/TWA ACGIH/STEL ppm mg/m3 Non-Standard Unit 2 6 ENGINEERING MEASURES: General ventilation is recommended.

RESPIRATORY PROTECTION:

HAND PROTECTION

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION.:

Wear standard protective clothing.EYE PROTECTION:

Wear chemical splash goggles.HYGIENE RECOMMENDATIONS:

19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Dark red ODOR None SPECIFIC GRAVITY 1.12-1.16

@ 77 °F / 25 °C DENSITY 9.3 -9.7 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 11.1-11.8 FREEZING POINT -20 °F (-29 °C Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.4/11

)4NALCO SAFETY DATA SHEET PRODUCT TRASAR TRAC102 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC BOILING POINT .212 OF/ 100 'C Note: These physical properties are typical values for this product and are subject to change.10. STABILITY AND REACTIVITY STABILITY.:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Extremes of temperature Do not allow product to evaporate to dryness. Dried product residue can act as an oxidizer.MATERIALS TO AVOID: Contact with reducing agents (e.g. hydrazine, sulfites, sulfide, aluminum or magnesium dust) may generate heat, fires, explosions and toxic vapors. Do not mix with amines. Sodium nitrite can react with certain amines to produce N-nitrosamines, many of which are cancer-causing agents to laboratory animals. Contact with strong acids (e.g.sulfuric, phosphoric, nitric, hydrochloric, chromic, sulfonic) may generate heat, splattering or boiling and toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of nitrogen, Oxides of carbon 11. TOXICOLOGICAL INFORMATION The following results are for a similar product.ACUTE ORAL TOXICITY: Species: Rat LD50: > 2,000 mg/kg Test Descriptor:

Similar Product SENSITIZATION

Sodium mercaptobenzothiazole may cause senstization in susceptible individuals.

Repeated or prolonged contact may cause sensitization in some individuals.

CHRONIC TOXICITY DATA: A chronic feeding laboratory study of 120 ppm sodium mercaptobenzothiazole in the diet showed no effects.CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.5/11

)4NALCO SAFETY DATA SHEET PRODUCT TRASAR TRACIO02 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Moderate 112. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for a similar product.ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Rainbow Trout 96 hrs 200 mg/I Similar Product Bluegill Sunfish 96 hrs > 1,000 mg/I Similar Product ACUTE INVERTEBRATE RESULTS: I Species I Exposure ILC50 EC50 I Test.Descriptor Daphnia magna 148 hrs .670 mg/I Similar Product PERSISTENCY AND DEGRADATION:

Total Organic Carbon (TOC): 37,000 mg/I Chemical Oxygen Demand (COD): 67,000 mg/I Biological Oxygen Demand (BOD): I Incubation Period IValue Test Descriptor 703 mg/l The organic portion of this preparation is expected to be readily biodegradable.

MOBILITY: The environmental fate was estimated using a level Ill fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; IAir I Water I Soil/Sediment 1 <5% 1 30 -50% 1 50 -70%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.6/11

)4NALCO SAFETY DATA SHEET I PRODUCT TRASAR TRAC102 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low If released into the environment, see CERCLA/SUPERFUND in Section 15.113. I DISPOSAL CONSIDERATIONS I If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility.

Consult local, state, and federal regulations for specific requirements.

114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product.LAND TRANSPORT:

Proper Shipping Name: Technical Name(s): UN/ID No : Hazard Class -Primary: Packing Group: Flash Point: Reportable Quantity (per package)RQ Component:

MARINE TRANSPORT (IMDG/IMO):

ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S.SODIUM NITRITE UN 3082 9 III Not applicable 2,000 lbs SODIUM NITRITE Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.7/11 SAFETY DATA SHEET)NALCO TRASAR TRAC102 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 15. REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Sodium Nitrite : Target Organ Effect -Kidney, Target Organ Effect -Nervous system, Target Organ Effect -Blood Sodium Tetraborate-Exposure Limit Sodium Metasilicate:

Corrosive Sodium Nitrate: Oxidizer Sodium Mercaptobenzothiazole " Corrosive, Dermal Sensitizer CERCLA/SUPERFUND, 40 CFR 302: This product contains the following Reportable Quantity (RQ) Substance.

Also listed is the RQ for the product. If a reportable quantity of product is released, it requires notification to the NATIONAL RESPONSE CENTER, WASHINGTON, D.C. (1-800-424-8802).

RQ Substance RQ Sodium Nitrite 2,000 lbs SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE 111) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard X Delayed (Chronic)

Health Hazard Fire Hazard Sudden Release of Pressure Hazard Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product contains the following substance(s), (with CAS # and % range) which appear(s) on the List of Toxic Chemicals Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.8/11 SAFETY DATA SHEET)041'ALCOPRODUCT p4NALCO TRASAR TRAC102 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Hazardous Substance(s)

CAS NO % (w/w)Sodium Nitrate 7631-99-4 1.0-5.0 Sodium Nitrite 7632-00-0 1.0 -5.0 TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is : 140965 This product is acceptable for treating boilers, steam lines, and/or cooling systems where neither the treated water nor the steam produced may contact edible products in and around food processing areas, excluding such use in areas where meat and poultry, are processed (G1 0). This product is acceptable for treatment.

of cooling and retort water in and around food processing areas, excluding such use in areas where meat and poultry are processed (G8).FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.4 / formerly Sec. 311 : This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

Citations* Sodium Nitrite Sec. 311* Sodium Hydroxide CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and ii Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS.: The following substances are disclosed for compliance with State Right to Know Laws: Sodium Nitrate 7631-99-4 Sodium Nitrite 7632-00-0 Sodium Tetraborate 1330-43-4 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.9/11 SAFETY DATA SHEET NNALCO*)04" ALCOPRODUCT TRASAR TRAC102 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).EUROPE The substance(s) in this preparation are included in or exempted from the EINECS or ELINCS inventories

16. OTHER INFORMATION This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel InsightTM (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.10/11 N NALCO SAFETY DATA SHEET PRODUCT TRASAR TRAC102 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued : 03/02/2011 Version Number: 1.4 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.11/11 N"NALCO Product Buletin PermaClean

-Membrane Cleaner PRODUCT DESCRIP1ION AND APPLICATION PermaCleang Ml-E is a membrane cleaner developed to support the cleaning of acid-insoluble sulfates of calcium, barium and strontium as well as calcium fluoride.

PermaClean OM is also effective in removing iron oxides and hydroxides as well as calcium carbonate, though PermaClean@

PC-77 or PermaCleanO PC-87 is preferred for these foulants.

PermaClean M-= is highly effective when used in combination with high pH detergent cleaners such as PermaCleanO PC-67 or PermaClean PC-99 to help remove organic substances and microbial slimes.During normal operation, RO membranes can become fouled, which greatly reduces the efficiency of the system. Deposits build up on the membrane until they cause a reduction in permeate flow and loss in salt rejection.

The effects of fouling can lead to poor water quality, loss in production, unscheduled downtime and membrane replacement.

A regular maintenance and cleaning program can provide return on investment (RO) results ranging from 100 to 250% by maintaining low pump output pressures and extending the membrane's life.Elements should be cleaned whenever the normalized permeate flow rate or salt rejection decreases by 10-15%or the differential pressure increases by 10-15% from the original baseline data.PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS) SECTION 9 for the most current data.Form Liquid Density 10.51 lb/gal [4.77 kg/1]Specific Gravity 1.28 pH (Neat) 12.0- 13.0 pH (1% solution) 11.4 Freeze-Thaw Complete Recovery viscosity Not Available Flash Point None Odor Slight, Ammonia REGULATORY APPROVALS This product has received NSF/lnternalional certification under ANSI/NSF Standard 60 in the 'Other' category.

The official name is "Miscellaneous Water Supply Products." Only product manufactured at the Nalco plant at Chagrin Falls, OH, and whose container label bears the ANSI/NSF mark may be used in potable water treatment applications.

This product is designed to be used off-line and must be flushed and drained before being placed into service. The pH of the influent and effluent water should be monitored to ensure that all traces of the product have been removed before placing into service.MATERIALS OF COMPATIBILITY Compatible Not Compatible All membrane elements based on Brass Polyamide chemistries including Thin Film Composite (TFC)membranes when used as directed Mild Steel Coated Steel Drum (phenolic)

Unwelded 304 Stainless Steel Unwelded 316 Stainless Steel Welded 304 Stainless Steel Welded 316 Stainless Steel Neoprene (-inngs Viton O-ring Buna-N O-rings Hypalon O-rings EPDM O-rings Polyethylene piping (rigid)Polypropylene piping (rigid)CPVC piping (rigid)HOPE Vinyl ester resin i i Epoxy phenolic DOSAGE AND FEEDING PermaClean MU-U should be fed via a closed feed system. A closed feed system is defined as a system in which fluid is moved from a closed storage vessel into a treated media without exposure to the atmosphere except through normal venting or pressure relief devices.Cleaning solutions should be made up with chlorine-free water to give a 2.0 -2.5% solution of PermaClean

]U-U. it is sometimes possible to monitor the progress of membrane cleaning by the "pick-up" of hardness salts in the cleaning solution.Consult your Nalco representative for detailed dosage and feeding information.

ENVIRONMENTAL AND TOXICITY DATA Biological Oxygen Demand (5-day goo.) 1 N/A--Chemical Oxygen Demand (COD) N/A Total Organic Carbon (TOC) 140,000 ppm Refer to SECTIONS 11 and 12 of the MSDS for all available mammalian and aquatic toxicity informalion.

SAFETY AND HANDLING Chemical resistant gloves and safety goggles should be worn when handling PermaClean lM-E. Read SECTION 8 of the MSDS for specific personal protective equipment (PPE) recommendations and SECTION 3 for health effects information.

STORAGE Recommended in-plant storage limit is 12 months.REMARKS If you need assistance or more information on this product please call your nearest Nalco Representative.

For more news about Nolco Company. visit our website atwww nalco com.For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION PermaClean is a registered trademark of Nalco Limited NALCO is a registered trademark of Nalco Company (l 1-03)Ialko: 1C".mnpi .1041- West Piehl Road. ii.lpel ville. Illinois 0505. -104 Subsidiaries and Affiliates in Principal Locations Around the Wotrld r5J2010 Nab- Company All Rigl-its Reserved.DN

)4fNALCO SAFETY DATA SHEET PRODUCT PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: PermaClean PC-33 APPLICATION:

REVERSE OSMOSIS CLEANER COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 2/2 FLAMMABILITY:

1/1 INSTABILITY:

010 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme = Chronic Health Hazard 2. COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified thefollowing chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

Sodium Hydroxide Tetrasodium EDTA CAS NO 1310-73-2 64-02-8% (w/w)1.0- 5.0 30.0- 60.0 13. 1 HAZARDS IDENTIFICATION I**EMERGENCY OVERVIEW"*

WARNING Irritating to eyes.Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Use a mild soap if available.

Wear suitable protective clothing.

Wear chemical splash goggles.Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Can cause moderate to severe irritation.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/11 SAFETY DATA SHEET)01NALCO PRODUCT PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SKIN CONTACT: Can cause mild irritation.

INGESTION:

Not a likely route of exposure.

There may be irritation to the gastro-intestinal tract with nausea and vomiting.INHALATION:-

Not a likely route of exposure.

Repeated or prolonged exposure may irritate the respiratory tract.AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. FIRST AID MEASURES EYE CONTACT: Immediately flush eye with water for at least 15 minutes while holding eyelids open. Get medical attention.

SKIN CONTACT: Flush with large amounts of water. Use soap if available.

If symptoms develop, seek medical advice.INGESTION:

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. Get medical attention.

INHALATION:

Remove to fresh air, treat symptomatically.

If symptoms develop, seek medical advice.NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms'and clinical condition.

15. FIRE FIGHTING MEASURES FLASH POINT. None EXTINGUISHING MEDIA: Use extinguishing media appropriate for surrounding fire. This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable.

FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/11 P4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.

Ensure clean-up is conducted by trained personnel only. Do not touch spilled material.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank-truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water.17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally:

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled. Do not mix with acids.STORAGE CONDITIONS:

Store in suitable labeled containers.

Store the containers tightly closed. Store separately from acids.SUITABLE CONSTRUCTION MATERIAL : HDPE (high density polyethylene), Stainless Steel 304, Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use., Mild steel, Stainless Steel 316L, Polyurethane, Buna-N, EPDM, Polyethylene, Polypropylene, PVC, Epoxy phenolic resin, Neoprene, Chlorosulfonated polyethylene rubber, Fluoroelastomer.UNSUITABLE CONSTRUCTION MATERIAL: Brass, 100% phenolic resin liner 18. 1 EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS.Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Category:

ppm mglm3 Non-Standard Unit Sodium Hydroxide ACGIHICeiling 2 OSHA ZI/PEL 2 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/11 N4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors, aerosols, or dusts are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear standard protective clothing.EYE PROTECTION:

Wear chemical splash goggles.HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Low 19. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Yellow ODOR Slight SPECIFIC GRAVITY 1.28 DENSITY 10.51 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 12.0-13.0 pH (1 %) 11.4 FREEZING POINT 8 'F / -13 'C Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/11

)4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC BOILING POINT 224.6 'F / 107 0 C VAPOR PRESSURE Same as water VOC CONTENT 0 % Calculated Note: These physical properties are typical values for this product and are subject to change.110. 1 STABILITY AND REACTIVITY STABILITY

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Freezing temperatures.

MATERIALS TO AVOID: Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas. Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon, Oxides of nitrogen 11.1 TOXICOLOGICAL INFORMATION The following results are for the product.ACUTE ORAL TOXICITY: Species: Rat LD50: > 2,000 mg/kg Test Descriptor:

Product SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Low Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5/11

)4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 112. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS.The following results are for a similar product.ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Bluegill Sunfish 96 hrs 1,030 mg/I Product Fish 96 hrs 41 -2,070 mg/I Similar Product ACUTE INVERTEBRATE RESULTS: ISpecies IExposure ILC50 IEC50 Test Descriptor Daphnia magna 24 hrs > 500 mg/I Similar Product AQUATIC PLANT RESULTS: I Species I Exposure EC50/LC50 I Test Descriptor Algae 72 hrs 10 -100 mo/l Similar Product PERSISTENCY AND DEGRADATION:

Total Organic Carbon (TOC): 94,000 mg/I The organic portion of this preparation is expected to be inherently biodegradable.

MOBILITY:.

The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 30 -50% 50 -70%The portion in water is expected to be soluble or dispersible-BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Moderate Based on our recommended product application and the product's characteristics, the potential environmental exposure is: Low Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/11

) NALCO EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC If released into the environment, see CERCLA/SUPERFUND in Section 15.13. DISPOSAL CONSIDERATIONS If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.Hazardous Waste: D002 Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility.

Consult local, state, and federal regulations for specific requirements.

114. IT RNSPORT INFORMATION The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: Flash Point: AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: Technical Name(s).UN/ID No: Hazard Class -Primary: Packing Group: IATA Cargo Packing Instructions:

IATA Cargo Aircraft Limit: MARINE TRANSPORT (IMDG/IMO):

CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S TETRASODIUM SALT OF EDTA, SODIUM HYDROXIDE UN 3267 8 III None CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S Tetrasodium EDTA UN 3267 8 III 820 60 L (Max net quantity per package)CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S Tetrasodium EDTA UN 3267 8 III Proper Shipping Name: Technical Name(s) : UN/ID No: Hazard Class -Primary: Packing Group : Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/11

)4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 15. REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Sodium Hydroxide

Corrosive Tetrasodium EDTA.: Irritant CERCLAISUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard-Delayed (Chronic)

Health Hazard-Fire Hazard-Sudden Release of Pressure Hazard-Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.Nalco Company 1601 W. Diehl Road -Naperville; Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/11 .

)PNALCO SAFETY DATA SHEET PRODUCT PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC NSF INTERNATIONAL:

This product has received NSF/International certification under NSF/ANSI Standard 60 in the "Other" category.

The official name is "Miscellaneous Water Supply Products." This product is designed to be used off-line and must be flushed and drained before being placed into service. The pH of the influent and effluent water should be monitored to ensure that all traces of the product have been removed before placing into service. Membrane cleaner.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4/formerly Sec. 311 : This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

Citations Sodium Hydroxide Sec. 311 CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances known to the State of California to cause cancer and/or reproductive toxicity are present as an impurity or residue.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS.: The following substances are disclosed for compliance with State Right to Know Laws: Sodium Hydroxide 1310-73-2 INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/11 SAFETY DATA SHEET NALCOr PRODUCT PC3 NALCO PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC EUROPE The substance(s) in this preparation are included in or exempted from the EINECS or ELINCS inventories JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)NEW ZEALAND All substances in this product comply with the Hazardous Substances and New Organisms (HSNO) Act 1996,and are listed on or are exempt from the New Zealand Inventory of Chemicals.

PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).116. 1OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Low" The environmental risk is: Low Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10/11

)4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-33 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By Product Safety Department Date issued " 07/30/2010 Version Number: 1.11 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 11/11 S4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: PermaClean PC-87 APPLICATION:

REVERSE OSMOSIS CLEANER COMPANY IDENTIFICATION.-

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 1/2 FLAMMABILITY:

0/0 INSTABILITY:

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITIONIINFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

CAS NO 7664-38-2% (w/w)5.0- 10.0 Phosphoric Acid 13. 1 HAZARDS IDENTIFICATION I**EMERGENCY OVERVIEW**

CAUTION May cause irritation with prolonged contact.Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Use a mild soap if available.

Wear suitable protective clothing and gloves.Not flammable or combustible.

May evolve oxides of phosphorus (POx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE : Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Can cause moderate irritation.

SKIN CONTACT : Can cause moderate irritation.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.1/10 SAFETY DATA SHEET)NALCO PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INGESTION:

Not a likely route of exposure..

There may be irritation to the gastro-intestinal tract with nausea and vomiting.INHALATION:

Not a likely route of exposure.

Repeated or prolonged exposure may irritate the respiratory tract.AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. 1 FIRST AID MEASURES EYE CONTACT: Immediately flush eye with water for at least 15 minutes while holding eyelids open. Get medical attention.

SKIN CONTACT: Immediately flush with plenty of water for at least 15 minutes. Use a mild soap if available.

If symptoms develop, seek medical advice.INGESTION:

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. Get medical attention.

INHALATION:

Remove to fresh air, treat symptomatically.

Get medical attention.

NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. FIRE FIGHTING MEASURES FLASH POINT: None EXTINGUISHING MEDIA : Keep containers cool by spraying with water. Not expected to burn. Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of phosphorus (POx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING : In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.2/10 SAFETY DATA SHEET 04"NALCO PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 16. IACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.

Ensure clean-up is conducted by trained personnel only. Do not touch spilled material.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Wash site of spillage thoroughly with water. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water.17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled. Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

STORAGE CONDITIONS:

Store the containers tightly closed. Store in suitable labeled containers.

SUITABLE CONSTRUCTION MATERIAL: HDPE (high density polyethylene), Shipping and long term storage compatibility with construction materials can vary;we therefore recommend that compatibility is tested prior to use.UNSUITABLE CONSTRUCTION MATERIAL: Aluminum 18. EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Category:

ppm mg/m3 Non-Standard Unit Phosphoric Acid ACGIH/TWA 1 ACGIH/STEL 3 OSHA ZI/PEL 1 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.3/10

)4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours)CHEMTREC ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors, aerosols, or dusts are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations,a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work tonditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear standard protective clothing.EYE PROTECTION:

Wear chemical splash goggles.HYGIENE RECOMMENDATIONS.:

Use good work and personal hygiene practices to avoid exposure.

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.19. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Colorless ODOR None SPECIFIC GRAVITY 1.03 -1.07 @ 77 -F /25 -C DENSITY 8.6 -8.9 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 1.5 VISCOSITY 2 cps @ 74 *F /23 'C FREEZING POINT 60.8 'F / 16 'C VOC CONTENT 0 % Calculated Note: These physical properties are typical values for this product and are subject to change.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.4/10

)4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 10. STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Freezing temperatures.

MATERIALS TO AVOID: Bases HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of phosphorus

11. TOXICOLOGICAL INFORMATION No toxicity studies have been conducted on this product.SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as -carcinogens by the International Agency for Research on Cancer (IARC), the National.

Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Moderate 112. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product.ACUTE FISH RESULTS: I Species I Exposure .I LC50 Test Descriptor Rainbow Trout 96 hrs > 1,000 mg/I Product MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.5/10 A4NNALCO SAFETY DATA SHEET PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 30 -50% 50 -70%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low If released into the environment, see CERCLA/SUPERFUND in Section 15.113. 1 DISPOSAL CONSIDERATIONS If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.Hazardous Waste: D002 Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility.

Consult local, state, and federal regulations for specific requirements.

14. TRANSPORT INFORMATION The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product.LAND TRANSPORT:

Proper Shipping Name Technical Name(s): UN/ID No: Hazard Class -Primary Packing Group: Flash Point: Reportable Quantity (per package): RQ Component:

PHOSPHORIC ACID SOLUTION UN 1805 8 III None 51,200 lbs PHOSPHORIC ACID Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.6/10

)4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC AIR TRANSPORT (ICAO/IATA):

The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product.Proper Shipping Name: Technical Name(s)UN/ID No -Hazard Class -Primary: Packing Group: Reportable Quantity (per package)RQ Component:

MARINE TRANSPORT (IMDG/IMO):

PHOSPHORIC ACID SOLUTION UN 1805 8 III 51,200 lbs PHOSPHORIC ACID PHOSPHORIC ACID SOLUTION UN 1805 8 III Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: 115. I REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Phosphoric Acid : Corrosive CERCLA/SUPERFUND, 40 CFR 302: This product contains the following Reportable Quantity (RQ) Substance.

Also listed is the RQ for the product.RQ Substance Phosphoric Acid RQ 51,200 lbs SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.7/10

)4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard-Delayed (Chronic)

Health Hazard-Fire Hazard-Sudden Release of Pressure Hazard-Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.NSF INTERNATIONAL:

This product has received NSF/International certification under NSF/ANSI Standard 60 in the reverse osmosis antiscalant category.

The official name is "Miscellaneous Water Supply Products." This product is designed to be used off-line and flushed out prior to using the system for drinking water.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4 / formerly Sec. 311 : This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

Citations* Phosphoric Acid Sec. 311 CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.8/10

)4NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance with State Right to Know Laws: Phosphoric Acid 7664-38-2 INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on theInventory of Existing Chemical Substances China (IECSC).EUROPE The substance(s) in this preparation are included in or exempted from the EINECS or ELINCS inventories JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS)-KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).16. OTHER INFORMATION This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handlingpractices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Nalco Company 1601 W. Diehl Road ° Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.9/10

)NALCO SAFETY DATA SHEET PRODUCT PermaClean PC-87 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPST M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By : Product Safety Department Date issued : 02/15/2011 Version Number: 4.2 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.10/10 Product Bulletin NALCO 7408 Dechlorination Chemical PRODUCT DESCRIPTION AND APPLICATION NALCO 7408 is a fast-acting dechlorination agent used to reduce the levels of residual chlorine in chlorinated water supplies without increasing objectionable chloramines.

NALCO 7408 is a bisulfite-based material that reacts instantaneously with chlorine.

It does not include any catalyst and, therefore, reacts more slowly with oxygen.Its primary use is dechlorination of water, feedwater for reverse osmosis (RO), feedwater to ion exchange units, and waste water. NALCO 7408 is also used for chlorine and oxygen scavenging in systems that cannot tolerate the presence of a catalyst.PHYSICAL & CHEMICAL PROPERTIES These properties are typical.Form: Density @77 0 F [25 0 C]: Specific Gravity @77'F [25°C]: Odor: pH (1% Solution):

Freeze-Thaw Recovery: Flash Point (PMCC): Crystallization Point: Freeze Point (precipitation point)VOC ACTIVE CONSTITUENTS Sodium Bisulfite REGULATORY APPROVALS See MSDS for regulatory information.

MATERIALS OF COMPATIBILITY Liquid 11.4 lb/gal [1.37 kg/LL 1.37 Pungent sulfurous 4.1 Unstable None 37°F [3-C]30-F[-1 -C]None Compatible Polyethylene Fiberglass DK-411 PVC Buna-N Polypropylene Natural Rubber Teflon Viton Plexiglas Vinyl Not Compatible Aluminum Brass Mild Steel Nickel Neoprene Hypalon Stainless Steel 304 Stainless Steel 316 Not Tested Plasite 4005 Plasite 6000 Plasite 7122 Copper Polyurethane DOSAGE AND FEEDING PRODUCT FEEDING AND PROGRAM COMPATIBILITY NALCO 7408 should be fed at a point where thorough instantaneous mixing is available as close to the chlorine contact point as feasible.

NALCO 7408 can be fed neat or diluted.CONSEQUENCES OF UNDERFEED Dechlorination Underfeed of NALCO 7408 will cause free chlorine to remain in the water going to the ion exchanger or reverse osmosis (RO) membrane.

This chlorine will react with the resin or membrane structure causing degradation and/or hydrolysis (check manufacturing specifications).

Oxygen Scavenging Underfeed of NALCO 7408 will result in serious oxygen corrosion to the feedwater system. The greatest damage will occur in the economizer or feedwater preheaters.

Oxygen corrosion will also increase iron levels in the feedwater.

Iron deposits will form in the high heat flux areas of the boiler causing tube failures.CONSEQUENCES OF OVERFEED Dechlorination Moderate overfeed of NALCO 7408 will cause no permanent damage to any part of the boiler feed system. It will exchange out on the ion exchange resin or be removed by the RO membrane and cause reduced run. lengths that would be directly proportional to the extent of overfeed.

Slight overfeed should have no noticeable effect on the operation of the ion exchangers or RO membranes since the vast majority of ionic load would be coming from the water itself.ENVIRONMENTAL AND TOXICITY DATA Please see the Material Safety Data Sheet.SAFETY AND HANDLING Read the Material Safety Data Sheet before using this product.Caution: May cause irritation to skin and eyes. Avoid contact with skin, eyes and clothing.

Do not take internally.

In case of contact, wash skin with soap and water; for eyes, immediately flush with large amounts of water for at least 15 minutes, and get medical attention.

Remove contaminated clothing and wash before re-use.The maximum storage temperature is 120'F [490C]. Keep from freezing.

At temperatures below 30'F [-1 0 C], product will precipitate.

NALCO 7408 is not freeze-thaw stable. Bulk NALCO 7408 should be stored in lined or fiberglass tanks. Avoid excessive aeration.

Fill bulk tanks from the bottom.

STORAGE NALCO 7408 has a maximum recommended in-plant storage life of six months in factory-sealed containers.

REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION NALCO is a registered trademark of Nalco Company (11-14-05)

Nalco Company, 1601 West Diehl Road, Naperville, Illinois 60563-1198 Subsidiaries and Affiliates in Principal Locations Around the World©2004 Nalco Company All Rights Reserved

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: NALCOO 7408 APPLICATION:

CHLORINE SCAVENGER COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 1 /2 FLAMMABILITY:

0/0 INSTABILITY:

0/ 0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme = Chronic Health Hazard 12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

CAS NO 7631-90-5% (w/w)30.0- 60.0 Sodium Bisulfite 13. 1 HAZARDS IDENTIFICATION I**EMERGENCY OVERVIEW**

WARNING Harmful if swallowed.

Contains Sulfite. Causes asthmatic signs and symptoms in hyper-reactive individuals.

Irritating to respiratory system. Contact with acids liberates toxic gas.Do not get in eyes, on skin or on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Use a mild soap if available.

Wear suitable protective clothing.Not flammable or combustible.

May evolve oxides of sulfur (SOx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE : Skin, Eye, Inhalation HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: May cause irritation with prolonged contact.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.1/12 SAFETY DATA SHEET)NALCO PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SKIN CONTACT: May cause irritation with prolonged contact.INGESTION:

Harmful if swallowed.

Contains Sulfite. May cause asthmatic-like attack.INHALATION:

Irritant to respiratory system. Causes asthmatic signs and symptoms in hyper-reactive individuals.

AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

HUMAN HEALTH HAZARDS -CHRONIC: Ingestion of sulfite can cause a severe allergic reaction in asthmatics and some sulfite sensitive individuals.

The resulting symptoms can include difficulty in breathing, flushed skin and a rash. Chronic exposure to sulfites may cause symptoms of upper respiratory disease and affect sense of taste and smell.14. FIRST AID MEASURES.EYE CONTACT.Immediately flush with plenty of water for at least 15 minutes. If symptoms develop, seek medical advice.SKIN CONTACT: Flush with large amounts of water. Use soap if available.

If symptoms develop, seek medical advice.INGESTION:

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. Get medical attention.

INHALATION:

Remove to fresh air, treat symptomatically.

Get medical attention.

NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. 1 FIRE FIGHTING MEASURES FLASH POINT: None EXTINGUISHING MEDIA: Not expected to burn. Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of sulfur (SOx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.2/12 SAFETY DATA SHEET 04NALCO [PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 16. 1ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS.

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.

Ensure clean-up is conducted by trained personnel only. Do not touch spilled material.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Notify appropriate government, occupational health and safety and environmental authorities.

Contaminated absorbent material may pose the same hazards as the spilled product.METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area.. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water.17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled. Do not mix with acids.STORAGE CONDITIONS:

Store in suitable labeled containers.

Store the containers tightly closed. Store separately from acids. Amine and sulphite products should not be stored within close proximity or resulting vapors may form visible airborne particles.

Protect product from freezing.

Evolves sulfur dioxide (S02) when open to atmosphere.

The rate of S02 evolution increases with temperature and/or transfer of product. Sulfur dioxide may react with vapors from neutralizing amines and may form a visible cloud of amine salt particles.

SUITABLE CONSTRUCTION MATERIAL: HDPE (high density polyethylene), Brass, Neoprene, Polyurethane, EPDM, Polypropylene, Polyethylene, PVC, Chlorosulfonated polyethylene rubber, Fluoroelastomer, Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.UNSUITABLE CONSTRUCTION MATERIAL: Stainless Steel 304, Buna-N, Epoxy phenolic resin, 100% phenolic resin liner Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.3/12

)"NALCO SAFETY DATA SHEET PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 8. EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below. Exposure limits are listed for sulfur dioxide (S02) since this product evolves S02 When open to the atmosphere.

Substance(s)

Category:

ppm mg/m3 Non-Standard Unit Sodium Bisulfite ACGIH/TWA 5 Sulfur Dioxide ACGIH/STEL 0.25 OSHAZ1I/PEL 5 13 ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors, aerosols, or dusts are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear standard protective clothing.EYE PROTECTION:

Wear chemical splash goggles.HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Low Nalco Company 1601 W. Diehl Road ° Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.4/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Yellow ODOR Pungent SPECIFIC GRAVITY 1.37 @ 77 -F / 25 -C DENSITY 11.4 lb/gal BULK DENSITY 11.4 lb/ft3 SOLUBILITY IN WATER Complete pH (1 %) 4.1 VISCOSITY 2.8 cps @ 77 "F / 25 'C FREEZING POINT 34 "F / 1.1 'C BOILING POINT 219 'F / 104 'C VAPOR PRESSURE 32 mm Hg @ 77 'F /25 "C 76 mm Hg @ 99.9 'F 37.7 "C VAPOR DENSITY 2.2 (Air = 1)Note: These physical properties are typical values for this product and are subject to change.10. 1 STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Freezing temperatures.

MATERIALS TO AVOID: Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors. Contact with strong acids (e.g. sulfuric, phosphoric, nitric, hydrochloric, chromic, sulfonic) may generate heat, splattering or boiling and toxic vapors. S02 may react with vapors from neutralizing amines and may produce a visible cloud of amine salt particles.

HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of sulfur 11. TOXICOLOGICAL INFORMATION The following results are for a similar product.ACUTE ORAL TOXICITY: Species: Rat Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.5/12 P4NALCO SAFETY DATA SHEET PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC LD50: Test Descriptor:

4.1 g/kg Similar Product ACUTE DERMAL TOXICITY: Species: Rabbit LD50: 3 g/kg Test Descriptor:

Similar Product PRIMARY SKIN IRRITATION:

Species: Rabbit Draize Score: 1.0 /8.0*Test Descriptor'.

Similar Product PRIMARY EYE IRRITATION:

Species: Rabbit Draize Score: 9.4 /110.0 Test Descriptor:

Similar Product SENSITIZATION:

Sulfites can cause an allergic reaction in sensitive individuals.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Low 12. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product, unless otherwise indicated.

ACUTE FISH RESULTS: Species Rainbow Trout Fathead Minnow Mosquito Fish (Gambusia spp.)Exposure 96 hrs 96 hrs 96 hrs LC50> 100 mg/I 382 mg/I 240 mg/I Test Descriptor Product Similar Product ive Substance ACUTE INVERTEBRATE RESULTS: Species Exposure LC50 EC50 Test Descriptor Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.6/12 AWNALCO SAFETY DATA SHEET PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Daphnia magna 48 hrs 275 m/!l Product Daphnia magna 48 hrs 728 mg/I Similar Product Daphnia magna 48 hrs 119 mg/I Active Substance CHRONIC FISH RESULTS: Species I Exposure I NOEC/LOEC I End Point I Test Descriptor Fathead Minnow 7 Days 250 mg/I / 500 mg/I Growth Product CHRONIC INVERTEBRATE RESULTS: Species I Test Type I NOEC/LOEC I End Point I Test Descriptor Ceriodaphnia dubia 3 Brood 250 mj/I / 500 mg/I Reproduction Product MOBILITY The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 30-50% 50 -70%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low Based on our recommended product application and the product's characteristics, the potential environmental exposure is: High If released into the environment, see CERCLA/SUPERFUND in Section 15.113. I DISPOSAL CONSIDERATIONS I If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.As a non-hazardous waste, it is not subject to federal regulation.

Consult state or local regulation for any additional handling, treatment or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.7/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 14. TRANSPORT INFORMATION The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product.LAND TRANSPORT:

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: Flash Point: Reportable Quantity (per package): RQ Component:

BISULPHITES, AQUEOUS SOLUTION, N.O.S.SODIUM BISULPHITE UN 2693 8 III None 12,500 lbs SODIUM BISULFITE AIR TRANSPORT (ICAO/IATA):

The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product.Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: Reportable Quantity (per package): RQ Component:

BISULPHITES, AQUEOUS SOLUTION, N.O.S.SODIUM BISULPHITE UN 2693 8 III 12,500 lbs SODIUM BISULFITE BISULPHITES, AQUEOUS SOLUTION, NO.S.SODIUM BISULPHITE UN 2693 8 III MARINE TRANSPORT (IMDG/IMO)

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.8/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 115. I REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Sodium Bisulfite

Respiratory irritant CERCLA/SUPERFUND, 40 CFR 302: This product contains the following Reportable Quantity (RQ) Substance.

Also listed is the RQ for the product.RQ Substance RQ Sodium Bisulfite 12,500 lbs SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard-Delayed (Chronic)

Health Hazard Fire Hazard Sudden Release of Pressure Hazard Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.9/12 SAFETY DATA SHEET ANALCO .oo).04"N LI PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC FOOD AND DRUG ADMINISTRATION (FDA) Federal Food, Drug and Cosmetic Act: When use situations necessitate compliance with FDA regulations, this product is acceptable under: 21 CFR 173.310 Boiler Water Additives, 21 CFR 176.170 Components of paper and paperboard in contact with aqueous and fatty foods and 21 CFR 176.180 Components of paper and paperboard in contact with dry foods.Limitations:

no more than required to produce intended technical effect.NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is: 140967 This product is acceptable for treating boilers or steam lines where steam produced may contact edible products and/or cooling systems where the treated water may not contact edible products in and around food processing areas, excluding such use in areas where meat and poultry are processed (G9).This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4 /formerly Sec. 311 : This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

Citations Sodium Bisulfite Sec. 311 CLEAN AIR ACT,-Sec.

112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances):

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance with State Right to Know Laws: Sodium Bisulfite 7631-90-5 Water 7732-18-5 INTERNATIONAL CHEMICAL CONTROL LAWS: Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.10/12 SAFETY DATA SHEET A41"PRODUCT NNALCO NALCO@ 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)NEW ZEALAND All substances in this product comply with the Hazardous Substances and New Organisms (HSNO) Act 1996,and are listed on or are exempt from the New Zealand Inventory of Chemicals.

PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).16. OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Low* The environmental risk is: Low Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.11/12 A4NALCO SAFETY DATA SHEET I PRODUCT NALCO 7408 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Adel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By : Product Safety Department Date issued : 03/10/2011 Version Number: 1.21 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.12/12 N"NALCO Product Buletin PermaTreat 0'Membrane Antiscalant

-!PRODUCT DESCRIPTION AND APPLICATION PermaTreat W is a highly effective scale inhibitor developed for reverse osmosis (RO) systems. Scaling and iron fouling of the RO membranes will reduce system performance and lead to premature membrane replacement.

Precipitation of scale and deposits build up on the RO membrane, which leads to poor permeate quality, low permeate production, unscheduled downtime, increased water consumption and increased energy costs.For over 20 years PermaTreat IM- has shown excellent performance against the following scalants:

calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, calcium fluoride, silica and iron.For RO units with a feedwater flowrate of 545m /day (100 GPM) or less, the recommended product would be PermaTreatý PC-391.PermaTreat

.is used when the silica level in the brine is less than 105 mg/I at a brine pH of 7.5 and temperature 25'C (77 IQ. For higher silica levels, the recommended product is PemtaTreatc PC-510.PHYSICAL & CHEMICAL PROPERTIES PHYSICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS). SECTION 9. for the most current data.Color: Form: Odor.Density: Specific Gravity @2SC (774):*pH (Neat): Freeze-Thaw Recovery: Viscosity a 25 C (7"F): Flash Point (PMCC): Solubility in Water.Freeze Point.Volatile Organic Compounds (VOC): ACTIVE CONSTITUENTS Proprietary Sequestering Agent REGULATORY APPROVALS Clear, Yellow Liquid Slight ammonia smell I).33 lb/gal 1.36 10.5 Complete 20 cp None Complete Not Available Not Available This product has received NSF/Internalional certification under ANSI/NSF Standard 60 in the reverse osmosis anliscalant category.

The official name is "Miscellaneous Water Supply Products." Maximum product application dosage is: 5 mg/i. This approval only applies to products whose container label bears the ANSI/NSF mark for use in potable water treatment applications.

The Canadian Food Inspection Agency (CFIA) has authorized the use of PermaTreat N in food plants under the category C1. Refer to the Material Safety Data Sheet (MSDS), SECTION 15 for the most recent information on approvals.

MATERIALS OF COMPATIBILITY Alt membrane elements based on Polyamide chemistries including Thin Film Composite (TFC)membranes when used as directed.Compatible Stainless Steel 304 CPVC Piping Polyethylene Polypropylene Plasite 4300 Plasite 7122 Not Compatible brass Neoprene*Viton Buna-N*Polyurethane EPDM'Hypalon** 0-rings are acceptable for static applications.

If fitting is opened, 0-ring must be replaced.

PemiaTreat In should be fed continuously to minimize precipitation of scale and fouling of RO and nano-filtration membranes.

It is recommended to operate the dosing pump with the highest possible frequency and to adjust the dosage by adjusting the pump stroke to ensure membrane protection.

The feedpoint location should be as close to the RO membrane as practical but one that ensures good mixing with the feedwater prior to entering the RO system. Typically, this is before the cartridge filters.It is preferred to feed PermaTreat M-M neat via a closed feed system to prevent contamination from foreign material (a closed feed system being defined as a system in which fluid is moved from a closed storage vessel into a treated media without exposure to the atmosphere, except through normal venting or pressure relief devices).PemiaTreat -In can be diluted using RO permeate (only) following these guidelines:

I. Use RO permeate for dilution.2. Prepare a fresh antiscalant solution every 3-5 days.3. Inspect the antiscalant day tank before adding the new solution.

If needed, the antiscalant tank should be cleaned prior to filling.4. Dilution rates up to a factor 10 are typically applied. Dilution factors higher than 10 will require more attention with respect to the condition of the antiscalant tank (cleaning) and preparation of a new solution (every 1-3 days).5. NaOH can be added to the dilution to increase the pH to 10-1 I. This is especially recommended for warm environments to prevent bio-growth.

PermaTreat W-M dosage is dependent on feedwater chemistry, membrane type, and system operating parameters (e.g., recovery, temperature and pressure).

These parameters determine the potential foulant that is likely to foul the membrane elements.To determine the optimum product dosage for your system, it is recommended that you use the PermaCare R012 chemical projection computer program. This program will select the appropriate scale inhibitor treatment program and calculate the recommended dosage based on the RO design and operation as well as feedwater or brine chemistry.

This program will do all calculations for you easily and automatically.

CONSEQUENCES OF OVERFEED Overfeed of PermaTreat W-M will result in higher chemical cost.CONSEQUENCES OF UNDERFEED Underfeed of FermaTreat W-M will result in poor scale inhibition.

This will lead to fouled RO membranes, and reduced system performance and/or premature membrane replacement.

In RO units, scaling is typically seen in the tail-end elements that have the highest reject concentration (4:1 for a 75% recovery system).ENVIRONMENTAL AND TOXICITY DATA Refer to the MSDS SECTIONS 11 and 12 for all mammalian and aquatic toxicity data.ppm/ppm product Biological Oxygen Demand (S-day BODO) Not available Chemical Oxygen Demand (COD) Not available Total Organic Carbon (TOC) Not available SAFETY AND HANDLING Before using PermaTreat please refer to SECTION 1 of the MSDS for proper personal protective equipment (PPE) and SECTION 3 for health effects.STORAGE-PermaTreat m-l has a suggested in-plant storage limit of one year. The suggested maximum storage temperature is 100 F (38 C).Refer to the Material Safety Data Sheet (MSDS). SECTION 7. for the most current data-REMARKS If you need assistance or more information on this product please call your nearest Naoco Representative.

For more news about NaJco Company visit ourwebsite at .ww.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION Permralreat and PermaCore are registered trademarks of Nalco Limited LIMI"*nt;

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Subskia~ries and Afffilides in Principal Locations Atround the Wkrit 02010 NrAco Company AU Rights Reserved PC 191 %4SOOcttY OCeVt SAFETY DATA SHEET)041'PRODUCT NALCO PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: PERMATREAT PC-191 APPLICATION:

REVERSE OSMOSIS ANTISCALANT COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING.HEALTH: 0/1 FLAMMABILITY:

1 /1 INSTABILITY:

0/0 OTHER.: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme = Chronic Health Hazard 12. 1 COMPOSITIONIINFORMATION ON INGREDIENTS Based on our hazard evaluation, none of the substances in this product are hazardous.

13. HAZARDS IDENTIFICATION

• • EMERGENCY OVERVIEW**

CAUTION May cause irritation with prolonged contact.Do not get in eyes, on skin, on clothing.

Do not take internally.

Keep container tightly closed. Flush affected area with water.Wear suitable protective clothing, gloves and eye/face protection.

May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT : May cause irritation with prolonged contact.SKIN CONTACT : May cause irritation with prolonged contact.INGESTION:

Not a likely route of exposure.

May cause gastrointestinal irritation.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.1/11 SAFETY DATA SHEET)041' PRODUCT.NALCO o PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INHALATION:

May cause irritation of mucous membranes.

SYMPTOMS OF EXPOSURE: Acute : A review of available data does not identify any symptoms from exposure not previously mentioned.

Chronic: A review of available data does not identify any symptoms from exposure not previously mentioned.

AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

14. 1 FIRST AID MEASURES EYE CONTACT Immediately flush eye with water for at least 15 minutes while holding eyelids open. If symptoms persist, call a physician.

SKIN CONTACT: Remove contaminated clothing.

Wash off affected area immediately with plenty of water. If symptoms develop, seek medical advice.INGESTION:

Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. If symptoms develop, seek medical advice. Do not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. If symptoms develop, seek medical advice. Contact the Poison's Information Centre (eg Australia 13 1126; New Zealand 0800 764 766).INHALATION:

Remove to fresh air, treat symptomatically.

If symptoms develop, seek medical advice.NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

5. FIRE FIGHTING MEASURES FLASH POINT: Will not burn: inorganic or water-based product FLASH POINT: /> 100 °C EXTINGUISHING MEDIA: This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable.

Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD : May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.2/11 SAFETY DATA SHEET NNALCO)04" ALCOPRODUCT PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS.

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so. Do not touch spilled material.

Ventilate spill area if possible.METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water., Do not allow material to contaminate ground water system., Prevent material from entering sewers or waterways.

17. 1 HANDLING AND STORAGE HANDLING: Do not take internally.

Ensure all containers are labeled. Keep the containers closed when not in use. Avoid eye and skin contact. Keep away from acids and oxidizing agents.STORAGE CONDITIONS:

Store the containers tightly closed.SUITABLE CONSTRUCTION MATERIAL: PVC, Polypropylene, Polyethylene, Stainless Steel 304, HDPE (high density polyethylene), Epoxy phenolic resin, 100% phenolic resin liner UNSUITABLE CONSTRUCTION MATERIAL: Brass, Buna-N, Neoprene, EPDM, Polyurethane, Chlorosulfonated polyethylene rubber, Fluoroelastomer

18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS.This product does not contain any substance that has an established exposure limit.ENGINEERING MEASURES: General ventilation is recommended.

Local exhaust ventilation may be necessary when dusts or mists are generated.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.3111 N4NALCO SAFETY DATA SHEET PRODUCT PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC RESPIRATORY PROTECTION:

If significant mists, vapors or aerosols are generated an approved respirator is recommended.

A suitable filter material depends on the amount and type of chemicals being handled. Consider the use of filter type: Multi-contaminant cartridge, with a Particulate pre-filter.

In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if sighs of degradation are observed.SKIN PROTECTION

Wear impervious apron and boots.EYE PROTECTION:

Wear chemical splash goggles.HYGIENE RECOMMENDATIONS:

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area.Launder contaminated clothing before reuse. Keep an eye wash fountain available.

HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Low 9. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Colorless

-Pale amber ODOR Ammoniacal SPECIFIC GRAVITY 1.36 DENSITY 11.33 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 10.5 VISCOSITY 15 cps @ 77 °F /25 'C FREEZING POINT /-15°C Note: These physical properties are typical values for this product and are subject to change.110. 1 STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-.(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.4/11

)4NALCO HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Freezing temperatures.

MATERIALS TO AVOID: Strong oxidizing agents Strong acids SAFETY DATA SHEET PRODUCT PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC HAZARDOUS DECOMPOSITION PRODUCTS : Under fire conditions:

Oxides of carbon, Oxides of nitrogen 11. TOXICOLOGICAL INFORMATION The following results are for a similar product.ACUTE ORAL TOXICITY : Species: Rat LD50: > 17,800 mg/kg Test Descriptor:

Similar Product ACUTE DERMAL TOXICITY: Species: Rabbit LD50: > 15,800 mg/kg Test Descriptor:

Similar Product PRIMARY SKIN IRRITATION:

Species: Rabbit Draize Score: 0.3/8.0 Test Descriptor:

Similar Product PRIMARY EYE IRRITATION:

Species: Rabbit Draize Score: 3.7/110.0 Test Descriptor:

Similar Product SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: Low Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.5/11 PNALCO SAFETY DATA SHEET PRODUCT PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for a similar product.Acute Fish Results: Species Exposure Test Type Value Test Descriptor Rainbow Trout 96 hrs LC50 > 330 mgll Similar Product Sheepshead Minnow 96 hrs LC50 8,132 mg/I Similar Product Bluegill Sunfish 96 hrs LC50 > 330 mg/I Similar Product Channel Catfish 96 hrs LC50 1,212 mg/I Similar Product ACUTE INVERTEBRATE RESULTS: Species Exposure Test Type Value Test Descriptor Daphnia magna 48 hrs EC50 297 mg/I Similar Product Grass Shrimp 96 hrs EC50 7,870 mg/I Similar Product AQUATIC PLANT RESULTS : Species Exposure Test T pe Value Test Descriptor Green Algae 96 hrs LC50 20 mg/I Similar Product (Pseudokirchneriella subcapitata, previously Selenastrum capricornutum)

CHRONIC FISH RESULTS: Species Exposure Test Type Value End Point Test Descriptor Rainbow Trout 60 Days LOEC 47.6 mg/I Growth Similar Product Rainbow Trout 60 Days NOEC 23 mg/I -Growth Similar Product Chronic Invertebrate Results : Species Exposure Test Type Value End Point Test Descriptor Daphnia magna 28 Days LOEC 50 mg/I Reproduction Similar Product Daphnia magna 28 Days NOEC 25 mg/I Reproduction Similar Product MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.6/11 PNALCO SAFETY DATA SHEET PRODUCT PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 30-50% 50-70%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low Based on our recommended product application and the product's characteristics, the potential environmental exposure is: Low If released into the environment, see CERCLA/SUPERFUND in Section 15.13. DISPOSAL CONSIDERATIONS If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.As a non-hazardous waste, it is not subject to federal regulation.

Consult state or localregulation for any additional handling, treatment or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.14. TRANSPORT INFORMATION The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name : PRODUCT IS NOT REGULATED DURING TRANSPORTATION AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION MARINE TRANSPORT (IMDG/IMO):

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.7/11

)4fNALCO SAFETY DATA SHEET PRODUCT PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC TRANSPORTATION

15. [REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA : OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, none of the substances in this product are hazardous.

CERCLA/SUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR370): Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

Under SARA 311 and 312,.the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA) : The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.NSF INTERNATIONAL:

This product has received NSF/International certification under NSF/ANSI Standard 60 in the reverse osmosis antiscalant category.

The official name is "Miscellaneous Water Supply Products." Maximum product application dosage is: 15 mg/I.This product has received NSF/International certification under NSF/ANSI Standard 60 in the reverse osmosis antiscalant category.

The official name is "Miscellaneous Water Supply Products." Maximum product application dosage is: 15 mg/l.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.8/11 0 NALCO SAFETY DATA SHEET PRODUCT PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.4 /formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances):

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65.: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance with State Right to Know Laws: Water 7732-18-5 Phosphonate Proprietary INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substance(s) in this preparation are included in or exempted from the EINECS or ELINCS inventories JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.9/11

)4NALCO KOREA SAFETY DATA SHEET PRODUCT PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).16. OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Low* The environmental risk is: Low Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any-other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPST M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.10/11 04NALCO SAFETY DATA SHEET PRODUCT PERMATREAT PC-191 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc,, Englewood, CO.Prepared By : Product Safety Department Date issued: 07/20/2011 Version Number: 1.16 Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.11/11 AWNALCO Produm alean'c PermaClean" M--'Reverse Osmosis Scale/Metal Oxide Cleaner PRODUCT DESCRIPTION AND APPLICATION The cleaning procedure is more effective when performed at an approved pH and elevated temperature.

PermaClean OM can be used at temperatures from 60*F (16*C] up to the maximum recommended by the membrane manufacturer.

PermaClean " is suitable for most RO membranes although the pH should be adjusted for most cellulosic (CA) membranes.

Do not exceed membrane manufacturer's temperature and pH limits.PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS) for the most current data.form: Density (@77TF) Specific Gravity (@770F)(25*CI:

pH (Neat): Freeze-Thaw Recovery: Viscosity

(@74°F) [23+CI: Flash Point (PMCC): Odor freeze Point: Color.ACTIVE CONSTITUENTS Proprietary acid blend REGULATORY APPROVALS.Liquid 8.8 lb/gal [1.05 kg/LI 1.05 1.5 Complete 2 cps None Not available 16°F 1-9-Cl Clear colorless This product has received NSF/lnternational certification under ANSI/NSF Standard 60 in the reverse osmosis antiscalant category.

The official name is "Miscellaneous Water Supply Products." This product is designed to be used off-line and flushed out prior to using the system for drinking water.MATERIALS OF COMPATIBILITY Compatible All membrane elements based on Polyamide chemistries including Thin Film Composite (TFC) membranes when used as directed.Buna-N EPDM Hypalon Neoprene Polyethylene Polypropylene Polyurethane PVC Stainless Steel 304 Stainless Steel 316 Teflon Vinyl Viton Not Compatible Aluminum Brass Carbon Steel Nickel Plasite 4005 Plasite 6000 Plasite 7122 DOSAGE AND FEEDING The following is a suggested cleaning procedure for using PermaClean EM-t. For more information regarding cleaning procedures, contact the membrane or system manufacturer.

Flush -Flush the RO elements by pumping clean RO permeate from the cleaning tank through the pressure tubes to the drain for several minutes. Each RO stage should be cleaned separately.

tf a test stand is available, individual elements can be cleaned separately.

Mix chemicals

-Create a 5% (by volume) cleaning solution of PermaClean rn-0 with chlorine-free water and mix thoroughly before circulating the solutions to the RO elements.

It is not necessary to heat acid cleaners such as PermaClean -U to improve its cleaning effectiveness.

Never exceed the membrane manufactureres temperature and pH limits.Circulate

-Pump the mixed, preheated cleaning solution into the pressure tubes. Circulate, for approximately I hr i nit thP. flnw rm14 rArnmm4,nr{ied hv thA mpmhrnn, nr sRtnpm mnni fnrtilrpr In rnmp, rf hirnv fnr tinir th.

first return flow (up to 15% of the lank's volume) should be diverted to the drain to prevent redepositing of any removed solids. Monitoring the amount of foulant removed will indicate the effectiveness of the cleaning.Drain and flush -After the cleaning is completed, drain and flush the cleaning tank. Fill the cleaning tank with RO permeate for rinsing. Proper monitoring will help indicate if a second cleaning is required.Rinse -Pump clean RO permeate from the cleaning tank through the pressure tubes into the drain for several minutes. Once the RO system is rinsed and ready for service, operate it with the product dump valves open until the water flows clean and free of any foam or residues of cleaning agents (usually 15-30 minutes).Normal cleaning dosage is 1 gallon [3.8 1. of PermaClean -U for each 20 gallons [76 L] of RO permeate water. When preparing cleaning solutions, ensure that all chemicals are dissolved and well mixed before circulating the solution to the Ro elements.

Only RO permeate or other high quality water should be used for dilution.

Consult your Nalco representative for detailed dosing information.

ENVIRONMENTAL AND TOXICITY DATA Refer to SECTIONS I I and 12 of the WDS for all available mammalian and aquatic toxicity information.

SAFETY AND HANDLING Before using PermaClean Wn-0, refer to SECTION 8 of the MSDS for proper personal protective equipment (PPE)and SECTION 3 for health effects.STORAGE PermaClean

-has a maximum recommended in-plant storage life of one year in factory-sealed containers.

Keep container closed when not in use. The maximum storage temperature is 120*F [49°C0. At temperatures below 32"F I0*C1, the product will freeze, but has complete freeze-thaw recovery.

Bulk PermaClean W-11 should be stored in polyethylene, polypropylene, or fiberglass tanks.All storage vessels of PermaClean should be in secondary containment.

REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website atwww.nalco.com For Medical and Transportation Emergencies involving Nolco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION PeirnaClecinnd NALCO are registered trademarts of Ncdco Copy andrKl/o its refaed cornpres I(1/I 101051 II,11co Cen ipaslw. "01~ Ws (ielrl P,5i'0. ll.11uiv..s le. Ifflloitok C050G 1. I Subsidiaries-and A ftifate8 n Ptrindyil Locat4.r, ~ the k Cý;OiCJ 04I: Nacr _ornri ny Ali FghIý Rprve,'z, Product Bulletin NALCO 7390 Corrosion Inhibitor PRODUCT DESCRIPTION AND APPLICATION NALCO 7390 is a liquid product containing zinc and phosphate.

This product is designed to be used as a corrosion inhibitor for mild steel in soft water systems. All ingredients assist in the corrosion control mechanism.

Zinc is a cathodic corrosion inhibitor, orthophosphate is an anodic corrosion inhibitor.

NALCO 7390 may be used in recirculating and once-through cooling water systems based upon the site NPDES permit.PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS), SECTION 9; for the most current data.Col For 0d or Clear, liaht yellow m Density Specific Gravity @ 61 OF (16 0 C)pH (Neat)pH (1% solution)Freeze Point Flash Point (PMCC)Freeze-Thaw Recovery Viscosity

@ 60°F (16 0 C)Liquid Slight 10.9 -11.1 lb/gal (1.31 -1.33 kg/L)1.31 -1.33<0.7 1.9< 5 0 F (-15 0 C)None Complete 7 cp ACTIVE CONSTITUENTS Component Function Zinc Cathodic corrosion Inhibitor Orthophosphate Anodic corrosion Inhibitor REGULATORY APPROVALS NALCO 7390 has received NSF/International certification under ANSI/NSF Standard 60 corrosion and scale control category.

Maximum product application is 33 ppm. Only products whose containers bear the ANSI/NSF mark may be used in potable water treatment applications.

This product is authorized by the NSF for use in federally inspected meet and poultry plants under categories G1 and G5.

MATERIALS OF COMPATIBILITY Compatible Not Compatible Buna-N Aluminum Fiberglass Brass Hypalon Carbon Steel Neoprene EPDM Plexiglas Nickel Polypropylene Polyurethane Polyvinyl chloride (PVC) Stainless Steel 304 Teflon Stainless Steel 316 Vinyl Viton DOSAGE AND FEEDING For complete dosage and feeding recommendations, consult your Nalco representative.

ENVIRONMENTAL AND TOXICITY DATA Biological Oxygen Demand (5-day BOD5)Chemical Oxygen Demand (COD)Total Organic Carbon (TOC)100 ppm 177 ppm 5,700 ppm Refer to the product's MSDS, SECTIONS 11 and 12, for all mammalian and aquatic toxicological information.

NALCO 7390 contains zinc, which is considered a priority pollutant.

It must be used in accordance with the site NPDES permit.SAFETY AND HANDLING NALCO 7390 is an acidic product. Read SECTION 8 of the Material Safety Data Sheet for specific personal protective equipment requirements and SECTION 3 for possible health effects.NALCO 7390 contains a reportable quantity (RQ) substance.

All storage vessels of NALCO 7390 must be in secondary containment if the storage capacity exceeds the RQ of 6,700 pounds.STORAGE NALCO 7390 should be stored in a location where the product temperature can be kept in a range between 5 0 F (-15 0 C) and 120°F (49 0 C). In cold climates, heat tracing and insulation of exposed containers and transfer lines may be necessary.

Recommended in-plant storage limit is six months.REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.

ADDITIONAL INFORMATION Product Viscosity vs. Temperature

[Viscosity (cps)13 8.5 7"IL"'Temperature C (15.8°F)10°C (50°F)23-C (73.4-F)I NALCO is a registered trademark of Nalco Company (10-13-04)

Nalco Company, 1601 West Diehl Road, Naperville, Illinois 60563-1198 Subsidiaries and Affiliates in Principal Locations Around the World (©2004 Nalco Company All Rights Reserved

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. J CHEMICAL PRODUCT AND COMPANY IDENTIFICATION-PRODUCT NAME: NALCOO 7390 APPLICATION:

CORROSION INHIBITOR COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 3/3 FLAMMABILITY:

1 /1 INSTABILITY

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme = Chronic Health Hazard 12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

Phosphoric Acid Zinc Sulfate CAS NO 7664-38-2 7733-02-0% (w/w)10.0- 30.0 10.0- 30.0 3. HAZARDS IDENTIFICATION I**EMERGENCY OVERVIEW**

DANGER Corrosive.

May cause tissue damage.Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Use a mild soap if available.

Wear a face shield. Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots.Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas.PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE.: EYE CONTACT: Corrosive.

Will cause eye burns and permanent tissue damage.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/12 SAFETY DATA SHEET NALCO ODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SKIN CONTACT: Corrosive; i;auses permanent skin damage.INGESTION:

Corrosive; causes chemical burns to the mouth, throat and stomach.INHALATION:

Elevated temperatures or mechanical action may.form vapors, mists or fumes which may be irritating to the eyes, nose, throat and lungs.AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. 1 FIRST AID MEASURES EYE CONTACT: Immediately flush eye with water for at least 15 minutes while holding eyelids open. PROMPT ACTION IS ESSENTIAL IN CASE OF CONTACT. Get immediate medical attention.

SKIN CONTACT: Immediately flush with plenty of water for at least 15 minutes. Use a mild soap if available.

For a large splash, flood body under a shower. Get immediate medical attention.

Contaminated clothing, shoes, and leather goods must be discarded or cleaned before re-use.INGESTION:

Get immediate medical attention.

DO NOT INDUCE VOMITING.

If conscious, washout mouth and give water to drink.INHALATION:

Remove to fresh air, treat symptomatically.

Get immediate medical attention.

NOTE TO PHYSICIAN:

Probable mucosal damage may contraindicate the use of gastric lavage. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. 1 FIRE FIGHTING MEASURES FLASH POINT: None EXTINGUISHING MEDIA : Not expected to burn. Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.

Ensure clean-up is conducted by trained personnel only. Do not touch spilled material.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Wash site of spillage thoroughly with water. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment., Prevent material from entering sewers or waterways., If drains, streams, soil or sewers become contaminated, notify local authority.

17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled.STORAGE CONDITIONS:

Store the containers tightly closed. Store in suitable labeled containers.

Store separately from bases.UNSUITABLE CONSTRUCTION MATERIAL: Product is corrosive to aluminum.

Aluminum should not be used for feed, storage, or transportation systems.18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Category:

ppm mg/m3 Non-Standard Unit Phosphoric Acid ACGIH/TWA 1 ACGIHISTEL 3 OSHA Z1/PEL 1 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/12 N4NALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section or when significant mists, vapors, aerosols, or dusts are generated, an approved air purifying respirator equipped with suitable filter cartridges is recommended.

Consult the respirator

/ cartridge manufacturer data to verify the suitability of specific devices. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gauntlets is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots. A full slicker suit is recommended if gross exposure is possible.EYE PROTECTION:

Wear a face shield with chemical splash goggles.HYGIENE RECOMMENDATIONS:

Eye wash station and safety shower are necessary.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Use good work and personal hygiene practices to avoid exposure.

Eye wash station and safety shower are necessary.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Moderate 9. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Light yellow ODOR Slight SPECIFIC GRAVITY 1.30 -1.32 @ 60 -F/ 15.56 -C DENSITY 10.9 -11.1 lb/gal SOLUBILITY IN WATER Complete pH (100 %) < 0.7 pH (1%) 1.9 VISCOSITY 7 cps @ 60 'F / 16 0C Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC FREEZING POINT <5 5F / < -15 °C VAPOR PRESSURE 0.5 mm Hg @ 100 *F I Note: These physical properties are typical values for this product and are subject to change.110. STABILITY AND REACTIVITY STABILITY

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Freezing temperatures.

MATERIALS TO AVOID: Contact with strong alkalies (e.g. ammonia and its solutions, carbonates, sodium hydroxide (caustic), potassium hydroxide, calcium hydroxide (lime), cyanide, sulfide, hypochlorites, chlorites) may generate heat, splattering or boiling and toxic vapors. Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon 11. TOXICOLOGICAL INFORMATION The following results are for the hazardous components.

ACUTE ORAL TOXICITY : Species: Rat LD50: 1,530 mg/kg Test Descriptor:

Phosphoric Acid ACUTE DERMAL TOXICITY: Species: Rabbit LD50: 2,740 mg/kg Test Descriptor:

Phosphoric Acid SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).Nalco Company 1601 W. Diehl Road .Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5/12 N4NALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: High 12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product.ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Fathead Minnow 96 hrs 75 mg/I Product Rainbow Trout 96 hrs 1.2 mg/l Product ACUTE INVERTEBRATE RESULTS: ISpecies I Exposure LC50 EC50 Test Descriptor m Daphnia magna 48 hrs 82 mg/I 48 mg/I Product CHRONIC FISH RESULTS: Species I Exposure I NOEC/LOEC I End Point Test Descriptor Fathead Minnow 7 Days 3.13 mg/I / 6.25 mg/I Growth Product CHRONIC INVERTEBRATE RESULTS: ISpecies I Test Type I NOEC / LOEC End Point Test Descriptor Ceriodaphnia dubia 3 Brood 1.25 mg/I / 2.5 mg/I Reproduction Product PERSISTENCY AND DEGRADATION:

Total Organic Carbon (TOC): 5,700 mg/l Chemical Oxygen Demand (COD): 177 mg/I Biological Oxygen Demand (BOD): Incubation Period Value Test Descriptor 5 d 100 mg/I Product ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Moderate Based on our recommended product application and the product's characteristics, the potential environmental exposure is: High If released into the environment, see CERCLA/SUPERFUND in Section 15.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

° (630)305-1000 For additional.

copies of an MSDS visit www.nalco.com and request access 6/12 AWNALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 13. DISPOSAL CONSIDERATIONS If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.Hazardous Waste: D002 Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility.

Consult local, state, and federal regulations for specific requirements.

114. 1 TRANSPORT INFORMATION The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product.LAND TRANSPORT:

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: Flash Point: Reportable Quantity (per package)RQ Component:

CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S.PHOSPHORIC ACID, ZINC SULFATE UN 3264 8 III None 6,700 lbs ZINC SULFATE AIR TRANSPORT (ICAO/IATA):

The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product.Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group: IATA Cargo Packing Instructions:

IATA Cargo Aircraft Limit : Reportable Quantity (per package): RQ Component:

CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S.PHOSPHORIC ACID, ZINC SULFATE UN 3264 8 III 820 60 L (Max net quantity per package)6,700 lbs ZINC SULFATE Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/12 A4NALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC MARINE TRANSPORT (IMDG/IMO):

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Packing Group:*Marine Pollutant:

CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S.PHOSPHORIC ACID, ZINC SULFATE UN 3264 8 III ZINC SULFATE*Note: This product is regulated as a Marine Pollutant when shipped by Rail, Highway, or Air in bulk quantities (greater than 119 gallons) and when shipped by water in all quantities.

115. i REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below. Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Phosphoric Acid : Corrosive Zinc Sulfate: Corrosive to eyes, Immediate (Acute) Health Hazard CERCLA/SUPERFUND, 40 CFR 302: This product contains the following Reportable Quantity (RQ) Substance.

Also listed is the RQfor the product. If a reportable quantity of product is released, it requires notification to the NATIONAL RESPONSE CENTER, WASHINGTON, D.C. (1-800-424-8802).

I RQ Substance Zinc Sulfate RQ 6,700 lbs SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) -SECTIONS 302, 311, 312, AND 313 SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355) : This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/12 A ................

SAFETY DATA SHEET NNALCO NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC-Delayed (Chronic)

Health Hazard-Fire Hazard-Sudden Release of Pressure Hazard-Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372) : This product contains the following substance(s), (with CAS # and % range) which appear(s) on the List of Toxic Chemicals Hazardous Substance(s)

CAS NO % (w/w)Zinc Sulfate 7733-02-0 10.0 -30.0 TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)FOOD AND DRUG ADMINISTRATION (FDA) Federal Food, Drug and Cosmetic Act: When use situations necessitate compliance with FDA regulations, this product is acceptable under: 21 CFR 176.170 Components of paper and paperboard in contact with aqueous and fatty foods and 21 CFR 176.180 Components of paper and paperboard in contact with dry foods.Limitations:

no more than required to produce intended technical effect.NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is : 062426 This product is acceptable as a water conditioner (G2) for the treatment of entire potable water systems at concentrations not to exceed 10 ppm calculated as phosphate ion in and around food. processing areas. This product is acceptable for treatment of cooling and retort water (G5) in and around food processing areas.This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.NSF INTERNATIONAL:

This product has received NSF/International certification under NSF/ANSI Standard 60 in the corrosion and scale control category.

The official name is "Miscellaneous Corrosion Chemicals." Maximum product application dosage is: 33 mg/I.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.4 /formerly Sec. 311 : This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

[Citations

.Phosphoric Acid Sec. 311 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/12 P4NALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Zinc Sulfate Sec. 307 Sec. 311 CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS

This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.Zinc Sulfate STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance With State Right to Know Laws: Phosphoric Acid Zinc Sulfate Water 7664-38-2 7733-02-0 7732-18-5 INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

116. 1 OTHER INFORMATION Due to. our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Moderate* The environmental risk is: Moderate Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10/12 PNALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and PhysicalAgents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued : 07/01/2010 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 11/12

)4NALCO SAFETY DATA SHEET PRODUCT NALCO 7390 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Version Number: 1.17 Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 12/12 r NALCO Product Bulletin H-130 Microbicide PRODUCT DESCRIPTION AND APPLICATION H-130 microbicide is a non-oxidizing liquid organic biocide containing quaternary ammonium compounds formulated for use in industry cooling water systems. H-130 microbicide effectively controls growth of bacteria and algae. It is particularly effective in controlling iron bacteria and sulfate-reducing bacteria.High surface activity promotes system cleanliness by loosening and dispersing existing slime deposits from surfaces of cooling system equipment.

Advantages Easier to achieve biological control with one produce since H-130 microbicide controls the growth of bacteria, particularly iron bacteria, sulfate-reducing bacteria, and algae.H-130 microbicide is a non-oxidizing biocide, which means that the biocide is available for microbiological control rather than being consumed by inorganic-reducing substances in the cooling water.H-130 microbicide is biodegradable at use concentrations, so it provides an environmentally acceptable treatment.

Surface-active properties of H-130 microbicide provide a cleansing action that minimizes under-deposit corrosion.

This means improved heat transfer and lower operating costs.Effective for use in hard waters at low use concentrations, which means that H-130 microbicide is a cost-effective microbiological treatment to complement water and cost savings associated with operating at high cycles of concentration.

Addition of H-130 microbicide to the cooling water does not depress the pH of the bulk water and does not form corrosive by-products as found with chlorination.

Corrosion of metal surfaces is not accelerated by biocide treatment.

PHYSICAL & CHEMICAL PROPERTIES Form Liquid Color Light Yellow Density 0.93 kg/I (7.74 lb/gal)Specific Gravity @ 25°C (77°F) 0.93 pH (1%) 7.0-8.0 Solubility in Water Complete Freeze Point -10°C (12 0 F)Viscosity

@ 25 0 C (77 0 F) <100 Odor Alcoholic ACTIVE CONSTITUENTS lActive IFunction DidecyI Dimethyl Ammonium Chloride IBiocide REGULATORY APPROVALS Microbicide H-130 is registered by the Environmental Protection Agency (EPA Registration No. 10445-12)as a biocide for use in cooling water systems.MATERIALS OF COMPATIBILITY Compatible Not Compatible Polyethylene Stainless Steel 304 and 316 Epoxy Phenolic-lined Steel Fiberglass with Bisphenol Polypropylene Hypalon DOSAGE AND FEEDING For complete dosage and feeding recommendation, contact your Nalco representative.

ENVIRONMENTAL AND TOXICITY DATA This product is toxic to fish. Do not discharge effluent containing this active ingredient into lakes, streams, ponds, estuaries, oceans, or public waters unless this product is specifically identified and addressed in an NPDES permit: Do not discharge effluent containing this product to sewer systems without previously notifying the sewage treatment plant authority.

For guidance, contact your State Water Board or Regional Office of the EPA.SAFETY AND HANDLING Danger -Harmful or fatal if swallowed.

Product is corrosive and can cause severe eye damage and skin damage. Avoid contact with skin, eyes, and clothing.

Wear goggles or face shield and rubber gloves when handling.

Avoid breathing spray mist. Do not use, pour, spill or store near heat or open flame. Avoid contamination on food.First Aid -In case of contact, immediately flush eyes or skin with plenty of water for at least 15 minutes.For eyes, call a physician.

Remove and wash contaminated clothing before reuse. If swallowed, drink promptly a large quantity of milk, egg whites, or gelatin solution.

If these are not available, drink large quantities of water. Call a physician immediately.

Prohibitions

-Do not contaminate water, food or feed by storage or disposal.Pesticide Control -Pesticide wastes are acutely hazardous.

Improper disposal of excess pesticide, spray mixture, or reinstate is a violation of Federal law. If these wastes cannot be disposed of by use according to label instructions, contact your State Pesticide or Environmental Control Agency, or the Hazardous Waste representative at the nearest EPA Regional Office for guidance.

Metal Containers

-Triple rinse (or equivalent).

Then offer for recycling or reconditioning, or puncture and dispose of in a sanitary landfill, or by other approved State and local procedures.

Plastic Containers

-Triple rinse (or equivalent).

Then offer for recycling or reconditioning, or puncture and dispose of in a sanitary landfill, by incineration or if allowed by State and local authorities, by burning.If burned, stay out of smoke.Tank Cleaning -Transport tanks and equipment should be thoroughly drained and flushed with water to properly removal all traces of product. Dispose of washings as indicated above under Pesticide Disposal.Liquid and solid residues are hazardous.

STORAGE Do not use or store near heat sources or open flame. H-130 microbicide is stable at room temperature.

A slight haziness occurs as the product approaches its freeze point. Warming will return it to original condition with microbicidal.

properties unimpaired.

Best if used within six months from the time of receipt.REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION NALCO is a registered trademark of Nalco Company (3-02-04)Nalco Company, 1601 West Diehl Road, Naperville, Illinois 60563-1198 Subsidiaries and Affiliates in Principal Locations Around the World©2004 Nalco Company All Rights Reserved

)1NALCO SAFETY DATA SHEET PRODUCT H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: H-130 Microbiocide APPLICATION:

BIOCIDETWIN-CHAIN QUATERNARY AMMONIUM COMPOUND CONCENTRATE COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 3/3 FLAMMABILITY:

2/2 INSTABILITY

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. J COMPOSITIONIINFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

Didecyl-Dimethyl-Ammonium chloride Ethanol CAS NO 7173-51-5 64-17-5% (w/w)30- 60 10- 30 13. 1HAZARDS IDENTIFICATIONII

• • EMERGENCY OVERVIEW**

DANGER Combustible.

Corrosive.

Causes irreversible eye damage and skin burns. Do not get in eyes, on skin, or on clothing.Wear protective eyewear, (goggles or face shield), protective clothing, and rubber gloves. May be fatal if swallowed or inhaled. Do not breathe vapor or spray mist. Wear a dust/mist filtering respirator, or a NIOSH approved respirator with a Particulate pre-filter.

Harmful if absorbed through the skin. Prolonged or repeated skin contact may cause allergic reactions in some individuals.

Wash thoroughly with soap and water after handling and before eating, drinking or using tobacco. Remove contaminated clothing and wash before reuse.Keep away from heat. Keep away from sources of ignition -No smoking. Use with adequate ventilation.

Keep container tightly closed and in a well-ventilated place.Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots.Combustible Liquid; may form combustible mixtures at or above the flash point. Empty product containers may contain product residue. Do not pressurize, cut, heat, weld, or expose containers to flame or other sources of ignition.May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

May evolve HCI under fire conditions.

May evolve ammonia under fire conditions.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies .of an MSDS visit www.nalco.com and request access 1/11 SAFETY DATA SHEET)041"NALCOPRODUCT

~NALCO H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC PRIMARY ROUTES OF EXPOSURE: Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Corrosive.

Will cause eye burns and permanent tissue damage.SKIN CONTACT: Corrosive; causes permanent skin damage. Harmful if absorbed through skin. May cause sensitization by skin contact.INGESTION:

Corrosive; causes chemical bums to the mouth, throat and stomach. May be fatal if swallowed.

INHALATION:

Elevated temperatures or mechanical action may form vapors, mists or fumes which may be irritating to the eyes, nose, throat and lungs. Inhalation of vapors may cause headache, nausea, and vomiting.

Can cause central nervous system depression.

Large exposures may be fatal.HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. 1 FIRST AID MEASURES IF IN EYES: Hold eyelids open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses, if present, after the first 5 minutes, then continue rinsing. Call poison control center or doctor for treatment advice.IF ON SKIN: Take off contaminated clothing.

Rinse skin immediately with plenty of water for 15-20 minutes. Call a poison control center or doctor for treatment advice.IF SWALLOWED:

Call a Poison Control center or doctor for treatment advice. Have person sip a glass of water if able to swallow. Do not induce vomiting unless told to do so by the poison control center or doctor. Do not give anything by mouth to an unconscious person.IF INHALED: Move person to fresh air. If person is not breathing, call 911 or ambulance, then give artificial respiration, preferably mouth-to-mouth, if possible.

Call a poison control center or doctor for treatment advice.,Take container, label or product name and Pest Control Product registration number with you when seeking medical attention.

NOTE TO PHYSICIAN:

Aspiration may cause lung damage. Probable mucosal damage may contraindicate the use of gastric lavage. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/11 NNALCO SAFETY DATA SHEET PRODUCT H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 5. FIRE FIGHTING MEASURES FLASH POINT: 109 °F /43 °C ( SETAFLASH)

EXTINGUISHING MEDIA: Foam, Carbon dioxide, Dry powder, Other extinguishing agent suitable for Class B fires, For large fires, use water spray or fog, thoroughly drenching the burning material.Water mist may be used to cool closed containers.

FIRE AND EXPLOSION HAZARD: Combustible Liquid; may form combustiblemixtures at or above the flash point.. Empty product containers may contain product residue. Do not pressurize, cut, heat, weld, or expose containers to flame or other sources of ignition.

May evolve oxides of carbon (COx) under fire conditions.

May evolve oxides of nitrogen (NOx) under fire conditions.

May evolve HCI under fire conditions.

May evolve ammonia under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.6. ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.

Remove sources of ignition.

Ensure clean-up is conducted by trained personnel only. Do not touch spilled material.

Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Wash site of spillage thoroughly with water. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

This product is toxic to fish and other water organisms.

Do not discharge directly into lakes, ponds, streams, waterways or public water supplies.7. HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled. Do not use, store, spill or pour near heat, sparks or open flame.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/11

)pNALCO SAFETY DATA SHEET PRODUCT H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC STORAGE CONDITIONS:

Store in suitable labeled containers.

Store the containers tightly closed. Store away from heat and sources of ignition.Have appropriate fire extinguishers available in and near the storage area. Connections must be grounded to avoid electrical charges. Store separately from oxidizers.

18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Category: ppm 1,000 1,000 mg/m3 Non-Standard Unit 1,900 Ethanol OSHA Z1I/PEL ACGIH/STEL ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

If significant mists, vapors or aerosols are generated an approved respirator is recommended.

An organic vapor cartridge with dust/mist prefilter may be used. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gauntlets is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear impervious apron and boots. A full slicker suit is recommended if gross exposure is possible.EYE PROTECTION:

Wear chemical splash goggles.HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Keep a safety shower available.

Keep an eye wash fountain available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Light yellow Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/11

)4NALCO SAFETY DATA SHEET EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC ODOR Alcoholic SPECIFIC GRAVITY DENSITY SOLUBILITY IN WATER pH (1 %)VISCOSITY FREEZING POINT VAPOR PRESSURE VOC CONTENT 0.93 @ 77 -F/25 -C 7.7 lb/gal Complete 7.0- 8.0<100cps @ 77 F/25°C 12 'F /30mm Hg @ 77 'F/25°C 10 % EPA Method 24 Note: These physical properties are typical values for this product and are subject to change.10. 1 STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: Heat and sources of ignition including static discharges.

Extremes of temperature MATERIALS TO AVOID: Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors. Contact with reducing agents (e.g.hydrazine, sulfites, sulfide, aluminum or magnesium dust) may. generate heat, fires, explosions and toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon, Oxides of nitrogen, HCI 11. TOXICOLOGICAL INFORMATION The following results are for the hazardous components.

ACUTE ORAL TOXICITY: Species: Rat LD50: 238 mg/kg Test Descriptor:

Didecyl-Dimethyl-Ammonium chloride ACUTE DERMAL TOXICITY: Species: Rabbit LD50: 3.342 mg/kg Test Descriptor:

Didecyl-Dimethyl-Ammonium chloride Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 5/11

)4NALCO SAFETY DATA SHEET PRODUCT H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S)'

(800) 424-9300 (24 Hours) CHEMTREC Species: LD50: Test Descriptor:

Rabbit 3,342 mg/kg Active Substance SENSITIZATION:

Repeated or prolonged contact may cause skin sensitization.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).MUTAGENICITY:

An ingredient in this product has produced mutagenic effects in both germ and somatic cells of experimental animals and has shown positive results in in vitro screening test on human lymphocytes for mutagenicity.

112. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS.The following results are for the product, unless otherwise indicated.

ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Bluegill Sunfish 96 hrs 0.32 mg/I Active Substance Didecyl-Dimethyl-Ammonium chloride)Rainbow Trout 96 hrs 1.0 mg/I Active Substance (Didecyl-Dimethyl-Ammonium chloride)Coho Salmon 96 hrs 1.0 mg/I Active Substance (Didecyl-Dimethyl-Ammonium chloride)Fathead Minnow 96 hrs 0.19 mg/I Active Substance (Didecyl-Dimethyl-Ammonium chloride)Fathead Minnow 96 hrs 1.2 mg/I Active Substance tested with 20 mg/L Humic Acid (Didecyl-Dimethyl-Ammonium chloride ACUTE INVERTEBRATE RESULTS: Species Exposure LC50 EC50 Test Descriptor Daphnia magna 48 hrs 0.19 mg/I Daphnia magna 48 hrs 0.94 mg/I Product Didecyl-Dimethyl-Ammonium chloride)AQUATIC PLANT RESULTS:[Species I Exposure I EC50/LC50

[ Test Descriptor Green Algae 196 hrs 0.026 mg l Active Substance Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/11

)4NALCO SAFETY DATA SHEET PRODUCT H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC (Pseudokirchneriella IDidecyl-Dimethyl-Ammonium chloride)subcapitata, previouslyI Selenastrum capricornutumr)

CHRONIC FISH RESULTS: Species Exposure NOEC / LOEC End Point Test Descriptor Zebra Danio 34 Days 0.032 mg/I I Survival Active Substance Didecyl-Dimethyl-Ammo nium chloride)CHRONIC INVERTEBRATE RESULTS: Species Test Type NOEC /LOEC End Point Test Descriptor Daphnia magna 0.01 mg/I / Reproduction Active Substance DidecyI-DimethyI-Ammo nium chloride)PERSISTENCY AND DEGRADATION:

Biological Oxygen Demand (BOD): Biological degradation:

Approx OECD 303 A 24-70 Day >80%The organic portion of this preparation is expected to be readily biodegradable.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

If released -into the environment, see CERCLA/SUPERFUND in Section 15.113. 1 DISPOSAL CONSIDERATIONS If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.Hazardous Waste: D001 Pesticide wastes are acutely hazardous.

Improper disposal of excess pesticide, spray mixture, or rinsate is a violation of Federal law. If these wastes cannot be disposed of by use according to label instructions, contact your State Pesticide or Environmental Control Agency, or the Hazardous Waste Representative at the nearest EPA Regional Office for guidance.114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/11 N4NALCO SAFETY DATA SHEET PRODUCT H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC LAND TRANSPORT:

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Hazard Class -Secondary:

Packing Group Flash Point: AIR TRANSPORT (ICAO/IATA)

CORROSIVE LIQUID, FLAMMABLE, NO.S.DIDECYLDIMETHYLAMMONIUM CHLORIDE, ETHANOL UN 2920 8 3 II 43 'C / 109 'F CORROSIVE LIQUID, FLAMMABLE, NO.S.DIDECYLDIMETHYLAMMONIUM CHLORIDE, ETHANOL UN 2920 8 3 II Proper Shipping Name Technical Name(s): UN/ID No: Hazard Class -Primary: Hazard Class -Secondary:

Packing Group: MARINE TRANSPORT (IMDG/IMO):

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Hazard Class -Secondary:

Packing Group : CORROSIVE LIQUID, FLAMMABLE, N.O.S.DIDECYLDIMETHYLAMMONIUM CHLORIDE, ETHANOL UN 2920 8 3 II DIDECYLDIMETHYLAMMONIUM CHLORIDE*Marine Pollutant

• Note: This product is regulated as a Marine Pollutant when shipped by Rail, Highway, or Air in bulk quantities (greater than 119 gallons) and when shipped by water in all quantities.

I 15. I REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Didecyl-Dimethyl-Ammonium chloride:

Corrosive, HARMFUL Ethanol: Flammable Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/11

) NALCO SAFETY DATA SHEET PRODUCT H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC CERCLA/SUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE 111) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard Delayed (Chronic)

Health Hazard X Fire Hazard Sudden Release of Pressure Hazard Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF. TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA) : This product is exempted under TSCA and regulated under FIFRA. The inerts are on the Inventory List.FEDERAL INSECTICIDE, FUNGICIDE AND RODENTICIDE ACT (FIFRA)EPA Reg. No. 1706-186 In all cases follow instructions on the product label.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4 / formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/11

• NALCO SAFETY DATA SHEET PRODUCT H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: This product is a registered biocide and is exempt from State Right to Know Labelling Laws.INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA)" The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

116. 1 OTHER INFORMATION This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 10/11 SAFETY DATA SHEET AN LC PRODUCT NALCO .oo H-130 Microbiocide EMERGENCY TELEPHONE NUMBER(S).(800) 424-9300 (24 Hours) CHEMTREC Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued: 01/06/2011 Version Number: 5.1 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 11 /11 Product Bulletin H-550 Cooling Water Microbicide PRODUCT DESCRIPTION AND APPLICATION H-550 is a broad-spectrum, nonoxidizing biocide approved for use in recirculating cooling towers, air washers with mist eliminators, pasteurizers, and heat transfer systems. H-550 is particularly effective in controlling fungi, slime-forming bacteria and sulfate-reducing bacteria.

Because of its persistency and efficacy at elevated pH, H-550 is frequently used in closed water loops.Effective on a wide variety of biological activity-Effective on aerobic and anaerobic organisms-Effective on sulfate-reducing bacteria and other odor-causing bacteria Able to remove biofilms and inhibit re-growth-Improves and maintains heat transfer efficiency

-Bacterial films that cannot be picked up in visual inspections can increase HVAC energy usage from 5 to 10%Key product features-Effective pH range 6 to 9.5-Non-foaming

-Low odor-Non-halogenated

-Contains no heavy metals or salts Recommended in closed cooling systems-Effective at pH > 8-Compatible with glycol and common closed system inhibitors PHYSICAL & CHEMICAL PROPERTIES These properties are typical. Refer to the Material Safety Data Sheet (MSDS), SECTION 9, for the most current data.Form Liquid Color Clear Density 1.126 kg/I (9.4 lb/gal)SpecificGravity

@ 25 0 C (77 0 F) 1.12 pH (neat) 3.1 -4.5 Freeze-Thaw Recovery Complete Freeze Point C (- 5.8°F)-Boiling Point 100.5-C (213-F)Flash Point (PMCC) None Odor Aldehyde ACTIVE CONSTITUENTS Active Function Glutaraldehyde Biocide REGULATORY APPROVALS EPA Registration Number ..........................................

464-704-1706 H-550 is registered for the following applications.

Recirculating Cooling Water Systems Process Water Systems Air Washers and Industrial Scrubbing Systems Service Water and Auxiliary Systems Heat Transfer Systems Industrial Wastewater Systems H-550 is intended for industrial use only. Use only as specified on the container label.Do not discharge effluent containing this product into lakes, streams, ponds, estuaries, oceans, or public waters unless this product is specifically identified and addressed in an NPDES permit.Refer to the Material Safety Data Sheet (MSDS), SECTION 15 for the most recent information on approvals.

MATERIALS OF COMPATIBILITY Compatible Not Compatible Stainless Steel 304 & 316 Viton Polyethylene Hypalon PVC Buna-N Vinyl Ester Aluminum Polyester Copper Nickel Brass Polypropylene

_Mild Steel DOSAGE AND FEEDING The specific dosage of H-550 will vary depending upon the operating characteristics of your system, the water chemistry, and the severity of problems encountered.

Your Nalco sales engineer will recommend the optimum dosage for maximum performance in your system.ENVIRONMENTAL AND TOXICITY DATA This product is toxic to fish. Do not discharge effluent containing this product into lakes, streams, ponds, or public waters unless in accordance with an NPDES permit. For guidance, contact your regional office of the EPA. Do not contaminate water by cleaning of equipment or disposal of wastes.Refer to the Material Safety Data Sheet (MSDS), SECTIONS 11 and 12, for the most current data.SAFETY AND HANDLING Refer to the Material Safety Data Sheet (MSDS), SECTIONS 3 and 8, for the most current data.Nalco's PORTA-FEED delivery eliminates handling of biocides and disposal of empty containers and is the recommended delivery and storage option for this product.H-550 is packaged in the following containers.

PORTA-FEED Hands-Free Delivery-Micro 30 Gallon /114 L-Mini 75 Gallon / 284 L-Junior 200 Gallon / 750 L-Senior 400 Gallon / 1,500 L 5 Gallon (20 L ) Plastic Pails 15 Gallon Plastic Drums 55 Gallon Plastic Drums Bulk STORAGE Freeze point of this product is -21'C (- 5.8°F) and should be stored appropriately.

The recommended in-plant storage limit for H-550 is one year.Refer to the Material Safety Data Sheet (MSDS), SECTION 7, for the most current data.REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION PORTA-FEED, NALCO and the logo are trademarks of Nalco Company (9-15-2010)

All other trademarks are the property of their respective owners.Nalco Company, 1601 West Diehl Road, Naperville, Illinois 60563-1198 Subsidiaries and Affiliates in Principal Locations Around the World@2004 Nalco Company All Rights Reserved

)4NALCO SAFETY DATA SHEET PRODUCT H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: H-550 APPLICATION MICROBIOCIDE COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 3/ 3* FLAMMABILITY:-

1/1 INSTABILITY:

0/ 0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme * = Chronic Health Hazard 12. 1 COMPOSITIONIINFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

CAS NO 111-30-8% (w/w)30.0- 60.0 Glutaraldehyde

13. HAZARDS IDENTIFICATION

• • EMERGENCY OVERVIEW**

DANGER Corrosive.

Causes irreversible eye damage. Causes skin burns. Harmful if inhaled. May be fatal if swallowed.

Harmful if absorbed through skin. Prolonged or frequently repeated skin contact may cause allergic reactions in some individuals.

Causes asthmatic signs and symptoms in hyper-reactive individuals.

Do not get in eyes, on skin, on clothing.

Avoid breathing vapor. Do not swallow. Wear goggles, protective clothing, and rubber gloves. Wash thoroughly with soap and water after handling.

Remove contaminated clothing and wash before reuse.Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE : Eye, Skin, Inhalation HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Corrosive.

Will cause eye burns and permanent tissue damage.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.1/13 SAFETY DATA SHEET$4 NALCO PRODUCT H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SKIN CONTACT: May cause severe irritation or tissue damage depending on the length of exposure and the type of first aid administered.

Prolonged or frequently repeated skin contact may cause allergic reactions in some individuals.

Harmful if absorbed through skin.INGESTION:

Not a likely route of exposure.

Corrosive; causes chemical burns to the mouth, throat and stomach. May be fatal if swallowed.

INHALATION:

Irritating, in high concentrations, to the eyes, nose, throat and lungs. Inhalation of product mist or vapors may cause respiratory allergy. Inhalation of vapors may cause headache, nausea, and vomiting.SYMPTOMS OF EXPOSURE: Acute : A review of available data does not identify any symptoms from exposure not previously mentioned.

Chronic: A review of available data does not identify any symptoms from exposure not previously mentioned.

AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

HUMAN HEALTH HAZARDS -CHRONIC : Prolonged inhalation of product can increase lung injury in persons with emphysema, asthma, or other lung disorders.

14. 1 FIRST AID MEASURES If Swallowed:

-Call a poison control center or a doctor immediately for treatment advice. -DO NOT INDUCE VOMITING.

-Do not give anything to drink.IF IN EYES: Wash immediately and continuously with flowing water for at least 30 minutes2 Remove contact lenses after the first 5 minutes and continue washing. Obtain prompt medical consultation, preferably from an ophthalmologist.

Call a poison control center or a doctor immediately for treatment advice.IF ON SKIN: Take off contaminated clothing.

Rinse skin immediately with plenty of water for 15-20 minutes. Call a poison control center or doctor for treatment advice.IF INHALED: Move person to fresh air. If person is not breathing, call 911 or ambulance, then give artificial respiration, preferably mouth-to-mouth, if possible.

Call a poison control center or doctor for treatment advice.NOTE TO PHYSICIAN:

Aspiration may cause lung damage. Probable mucosal damage may contraindicate the use of gastric lavage. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.2/13 SAFETY DATA SHEET NALCO NALCOH-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC.1 15. FIRE FIGHTING MEASURES FLASH POINT: None EXTINGUISHING MEDIA: This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable.

Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of carbon (COx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.6. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS.

Restrict access to area as appropriate until clean-up operations are complete.

Ensure clean-up is conducted by trained personnel only. Ventilate spill area if possible.

Do not touch spilled material.

Stop or reduce any leaks if it is safe to do so. Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP : SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Wash site of spillage thoroughly with water. Dilute the glutaraldehyde to 5% or less with water. Add sodium bisulfite (2-3 parts by weight per part glutaraldehyde).

This will typically reduce the glutaraldehyde concentration to 2 ppm or less in 5 minutes at room temperature.

The remaining solution can be disposed of via appropriate means. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

This pesticide is toxic to fish. Do not discharge effluent containing this product into lakes, streams, ponds, estuaries, oceans or other waters, unless in accordance with the requirements of a National Pollutant Discharge Elimination System (NPDES) permit and the permitting authority has been notified in writing prior to discharge.

Do not discharge effluent containing this product to sewer systems without previously notifying the local sewage treatment plant authority.

For guidance contact your State Water Board or Regional Office of the EPA.17. HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Avoid generating aerosols and mists. Keep the containers closed when not in use. Wash thoroughly with soap and water after handling.Have emergency equipment (for fires, spills, leaks, etc.) readily available.

STORAGE CONDITIONS:

Store the containers tightly closed. Store separately from oxidizers.

Store in suitable labeled containers.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.3/13

)4NALCO SAFETY DATA SHEET I PRODUCT H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC SUITABLE CONSTRUCTION MATERIAL: Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.18. 1 EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS.Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.Substance(s)

Category:

ppm mg/m3 Non-Standard Unit Glutaraldehyde ACGIH/Ceiling 0.05 ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section, the use of a half face filter mask or air supplied breathing apparatus is recommended.

If significant mists, vapors or aerosols are generated an approved respirator is recommended.

A suitable filter material depends on the amount and type of chemicals being handled. Consider the use of filter type: Organic vapor cartridge, with a Particulate pre-filter.

In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use .of chemical gauntlets is recommended.

The choice of work glove depends on work conditions and what chemicals are handled, but we have positive experience under light handling conditions using gloves made from Butyl rubber or Nitrile Gloves should be replaced immediately if signs of degradation are observed.

Breakthrough time not determined as preparation, consult PPE manufacturers.

SKIN PROTECTION:

Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots. A full slicker suit is recommended if gross exposure is possible.EYE PROTECTION:

Wear a face shield with chemical splash goggles.HYGIENE RECOMMENDATIONS:

Eye wash station and safety shower are necessary.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse.19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid Nalco.Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.4/13

)rNALCO SAFETY DATA SHEET PRODUCT H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC APPEARANCE Colorless Aldehyde ODOR SPECIFIC GRAVITY DENSITY SOLUBILITY IN WATER pH (100 %)VISCOSITY FREEZING POINT BOILING POINT VAPOR PRESSURE VAPOR DENSITY VOC CONTENT 1.11-1.13

@ 77-F/25°C 9.4 lb/gal Complete 3.1 -4.5 21cps @ 68 'F 20°C-5.8 'F / -21 'C 213 °F /100.5 °C 16 mm Hg 1.1 54 % EPA Method 24 Note: These physical properties are typical values for this product and are subject to change.110. i STABILITY AND REACTIVITY I STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID: High temperatures Avoid extremes of temperature.

MATERIALS TO AVOID:* Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors. Amines Strong Bases Strong acids HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of carbon I 11. I TOXICOLOGICAL INFORMATION I The following results are for the product along with results on the active substances.

ACUTE ORAL TOXICITY: Species: Rat LD50: 200 mg/kg Test Descriptor:

Product ACUTE DERMAL TOXICITY: Species: Rabbit LD50: 1,749 mg/kg Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.5/13 PdNALCO SAFETY DATA SHEET PRODUCT H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours)CHEMTREC Test Descriptor Product ACUTE INHALATION TOXICITY: Species: Rat LC50: > 27 ppm (4 hrs)Test Descriptor:

Product PRIMARY SKIN IRRITATION.:

Remarks: At 10% or greater, glutaraldehyde solutions may cause moderate to severe irritation, with possible necrosis after prolonged contact.PRIMARY EYE IRRITATION:

Remarks: At levels of 0.2% and below of glutaraldehyde, no eye irritation was noted. Levels above 0.2% of glutaraldehyde produced moderate to severe irritation and corneal injury.SENSITIZATION:

Levels of greater than 0.2% of glutaraldehyde produced allergic contact dermatitis in human studies. May cause sensitization by inhalation and skin contact.CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization, the potential human hazard is: High 12. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product along with results on the active substances.

ACUTE FISH RESULTS: Species Exposure LC50 Test Descriptor Bluegill Sunfish 96 hrs 22.4 mg/I Product Fathead Minnow 96 hrs 10.8 mg/I Product Sheepshead Minnow 96 hrs 32 mg/I Active Substance Rainbow Trout 96 hrs 12 mg/I Active Substance ACUTE INVERTEBRATE RESULTS: Species. Exposure LC50 EC50 Test Descriptor Daphnia magna 48 hrs 0.69 mg/I Product Shore Crab 96 hrs 465 mg/1 Active Substance Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.6/13 PJNALCO SAFETY DATA SHEET PRODUCT H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Grass Shrimp 96 hrs 41 mg/I Active Substance Mysid Shrimp (Mysidopsis 96 hrs 7.1 mg/I Active Substance bahia)American Oyster 96 hrs 0.78 mg/I Active Substance Acartia tonsa 48 hrs 0.11 mg/I Active Substance AQUATIC PLANT RESULTS: Species Exposure EC50/LC50 Test Descriptor Marine Algae (Skeletonema 72 hrs 0.61 mg/I Active Substance costatum)Algae (Scenedesmus 96 hrs 0.97 mg/I Active Substance subspicatus)

Green Algae 72 hrs 2.64 mg/I Product (Pseudokirchneriella subcapitata, previously Selenastrum capricornutum)

AQUATIC MICROORGANISM RESULTS: Species Exposure EC50/LC50 Test Descriptor Sewage Microorganisms 96 hrs > 50 mg/I Active Substance Bacteria 16 hrs 17 -25 mg/I Active Substance CHRONIC FISH RESULTS: Species I Exposure I NOEC / LOEC End Point Test Descriptor Fathead Minnow 28 Days 1.4 m /I / 2.9 mg/I Survival Active Substance CHRONIC INVERTEBRATE RESULTS: Species I Test Type I NOEC / LOEC End Point Test Descriptor Daphnia magna 3 Brood 4.25 mg/I/ Reproduction Active Substance AVIAN RESULTS: Species Exposure LC50 Test Descriptor Bobwhite Quail 8 Days 10,000 ppm Active Substance Mallard Duck 8 Days 10,000 ppm Active Substance Mallard Duck 933 mg/k9 50% Active Ingredient MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; I Air I Water I Soil/Sediment

<5% 30 -50% 1 50 -70%Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.7/13

)4NALCO SAFETY DATA SHEET EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC The portion in water is expected to be soluble or dispersible.

• BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Moderate If released into the environment, see CERCLA/SUPERFUND in Section 15.113. DISPOSAL CONSIDERATIONS If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.As a pesticide waste, consult the FIFRA label for any additional handling, treatment, or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.Metal Containers or Plastic Containers:

Triple rinse (or equivalent).

Then offer for recycling or reconditioning, or puncture and dispose of in a sanitary landfill, or other procedures approved by state and local authorities.

Plastic Containers:

May be incinerated, or, if allowed by state and local authorities, by burning. If burned, stay out of smoke.Metal Containers:

Must not be incinerated.

Do not cut or weld on or near metal containers.

14. TRANSPORT INFORMATION The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)specific to an order. Please notethat the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Hazard Class -Secondary Packing Group: Flash Point: AIR TRANSPORT (ICAO/IATA)

CORROSIVE LIQUID, TOXIC, N.O.S GLUTARALDEHYDE UN 2922 8 6.1 II None CORROSIVE LIQUID, TOXIC, N.O.S GLUTARALDEHYDE UN 2922 8 6.1 Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Hazard Class -Secondary Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.8/13 P4NALCO SAFETY DATA SHEET PRODUCT H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Packing Group: MARINE TRANSPORT (IMDG/IMO):

11 Proper Shipping Name: Technical Name(s): UN/ID No: Hazard Class -Primary: Hazard Class -Secondary:

Packing Group:*Marine Pollutant:

CORROSIVE LIQUID, TOXIC, N.O.S GLUTARALDEHYDE UN 2922 8 6.1 II GLUTARALDEHYDE

• Note: This product is regulated as a Marine Pollutant when shipped by Rail, Highway (in bulk quantities), or Air (if no other hazard class applies), and when shipped by water in all quantities.

115. I REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Glutaraldehyde " Corrosive, Sensitizer CERCLA/SUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X X Immediate (Acute) Health Hazard Delayed (Chronic)

Health Hazard Fire Hazard Sudden Release of Pressure Hazard Reactive Hazard Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

• (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.9/13 SAFETY DATA SHEET NALCO H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): This product is exempted under TSCA and regulated under FIFRA. The inerts are on the Inventory List.FOOD AND DRUG ADMINISTRATION (FDA) Federal Food, Drug and Cosmetic Act: When use situations necessitate compliance with FDA regulations, this product is acceptable under : 21 CFR 173.320 Chemicals for controlling microorganisms in cane-sugar and beet-sugar mills. 21 CFR 176.170 Components of paper and paperboard in contact with aqueous and fatty foods and 21 CFR 176.180 Components of paper and paperboard in contact with dry foods.The following limitations apply: Maximum dosage Limitation 500 PPM as product by weight of the raw cane or raw beets 600 PPM AS PRODUCT by weight of the slurry solids It is a violation of Federal law to use this product in a manner inconsistent with its labeling.

176.170 and 176.180 Limitation:

For use only as an antimicrobial agent in pigment and filler slurries used in the manufacture of paper and paperboard.

NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds)

NSF Registration number for this product is : 143166 This product is acceptable for treatment of cooling and retort water (G5) in and around food processing areas. This product is acceptable for treating boilers, steam lines, and/or cooling systems (G7) where neither the treated water nor the steam produced may contact edible products in and around food processing areas.FEDERAL INSECTICIDE, FUNGICIDE AND RODENTICIDE ACT (FIFRA)EPA Reg. No. 464-704-1706 In all cases follow instructions on the product label.This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4 /formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.10/13 SAFETY DATA SHEET NNALCO IooCT H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances):

This product contains the following substances listed in the regulation.

Additional components may be unintentionally present at trace levels.Substance(s)

Citations* Methanol Sec. 112 CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: This product is a registered biocide and is exempt from State Right to Know Labelling Laws.Methanol 67-56-1 Glutaraldehyde 111-30-8 INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): Substances regulated under the Pest Control Products Act are exempt from CEPA New Substance Notification requirements.

AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000

• For additional copies of an MSDS visit www.nalco.com and request access.11/13 SAFETY DATA SHEET)041'rNALCOPRODUCT H-550 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)NEW ZEALAND All substances in this product comply with the Hazardous Substances and New Organisms (HSNO) Act 1996,and are listed on-or are exempt from the New Zealand Inventory of Chemicals.

PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).16. OTHER INFORMATION This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.12/13 A4NALCO SAFETY DATA SHEET (800) 424-9300 (24 Hours) CHEMTREC Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Adel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued: 04/01/2011 Version Number : 1.24 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.13/13 Product Bulletin ControlBrom CB70 Water Treatment Biocide PRODUCT DESCRIPTION AND APPLICATION General description:

ControlBrom CB70 is an aqueous solution containing sodium bromide and a stabilizer.

In its neat form, ControlBrom CB70 has no biocide activity.

When added to a water system with a chlorine source, such as bleach, bromide is converted to hypobromous acid, a very effective, fast acting biocide. The stabilizer makes halogen use more efficient, aiding slime penetration and control. The final product is a mixture of.free and combined chlorine and free and combined bromine, in ratios that vary dependent on dosing methods and system conditions.

Free chlorine and bromine provide quick kill when needed, while stabilized chlorine and bromine are persistent and can penetrate slime if it is present.Program benefits: Compared to bleach-only program, ControlBrom CB70 can save 40-60% of bleach consumption.

ControlBrom CB70 can be fed in proportion to the chlorine, using an ACTI-BROM feed system.Slug feed of chlorine can be used with ControlBrom CB70 to provide algae control.ControlBrom CB70 will reduce halogen spikes, decreasing copper alloy corrosion.

ControlBrom CB70 virtually eliminates overstabilization concerns.As a stabilized halogen program, ControlBrom CB70 provides excellent biofilm control.ControlBrom CB70 will provide higher halogen recovery rates when passing over a cooling tower compared to chlorine alone.PHYSICAL & CHEMICAL PROPERTIES Form Color Density Specific Gravity @ 25 0 C (77°F)pH (neat)Solubility in water Freeze-Thaw Recovery Freeze Point Flash Point (PMCC)Viscosity

@ 22°C (72°F)Boiling Point @ 760 mmHg Odor Liquid Colorless 11.6 lbs/gal (1.40 kg/I)1.40 10.2-12.4 Complete Complete-29°C (-21°F)None (PMCC)5 cp 104°C (218-F)None Refer to the Material Safety Data Sheet (MSDS), SECTION 9, for the most current data.ACTIVE CONSTITUENTS IActive IFunction I Weight %Sodium Bromide Bromine biocide precursor 30%

REGULATORY APPROVALS ControlBrom CB70 must be applied according to appropriate national and local regulations.

Refer to the Material Safety Data Sheet (MSDS), SECTION 15 for the most recent information on approvals.

As with all biocides applied in the United States, ControlBrom CB70 is regulated by the U.S. EPA under The Federal Insecticide, Fungicide and Rodenticide Act (FIFRA). It is a violation of federal law to use this product or any biocide in a manner inconsistent with its product label.U.S. EPA Registration Number 1706-235 is approval for ControlBrom CB70 use in: Recirculating Cooling Water Systems Once-Through Cooling Water (not for use in California)

Pasteurizers, Retort Systems, and Air Washers (not for use in California)

Cooling Ponds, Canals and Lagoons (not for use in California)

MATERIALS OF COMPATIBILITY Compatible Not Compatible Stainless Steel 304 Stainless Steel 316 Buna-N Hypalon Kynar Neoprene Nickel Plasite 6000,7122 Polyethylene Polypropylene Polyurethane Polyvinylchloride Teflon Vinyl Viton Aluminum Brass Carbon Steel Note: When the ControlBrom CB70 product is combined with bleach, the aqueous bromine/chlorine mixture is very corrosive.

The recommended material in the mixing chamber or reaction zone is Kynar or PVDF.DOSAGE AND FEEDING For complete dosage and feeding recommendation, please contact your Nalco sales engineer.ENVIRONMENTAL AND TOXICITY DATA Refer to the Material Safety Data Sheet (MSDS), SECTIONS 11 and 12, for the most current data.SAFETY AND HANDLING Read SECTION 8 of the Material Safety Data Sheet for specific personal protective equipment and SECTION 3 for health effects information.

STORAGE ControlBrom CB70 should be stored in a location where the product temperature can be kept in a range between -14°C (-7 0 F) and 49°C (120 0 F). In cold climates, heat tracing and insulation of exposed containers and transfer lines may be necessary.

Recommended in-plant storage limit is one year.Refer to the Material Safety Data Sheet (MSDS), SECTION 7, for the most current data.REMARKS If you need assistance or more information on this product, please call your nearest Nalco Representative.

For more news about Nalco Company, visit our website at www.nalco.com.

For Medical and Transportation Emergencies involving Nalco products, please see the Material Safety Data Sheet for the phone number.ADDITIONAL INFORMATION ControlBrom, PORTA-FEED, STA-BR-EX, ACTI-BROM, TRASAR, NALCO and the Logo are trademarks of Nalco Company (10-22-2008)

Nalco Company, 1601 West Diehl Road, Naperville, Illinois 60563-1198 Subsidiaries and Affiliates in Principal Locations Around the World@2004 Nalco Company All Rights Reserved

)4NALCO SAFETY DATA SHEET PRODUCT ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: ControlBrom CB70 COMPANY IDENTIFICATION:

Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S):

(800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 1 /2 FLAMMABILITY:

0/ 0 INSTABILITY:

0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme = Chronic Health Hazard 12. 1 COMPOSITIONIINFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous.

Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s)

CAS NO 7647-15-6% (w/w)10.0- 30.0 Sodium Bromide 13. 1 HAZARDS IDENTIFICATION

• • EMERGENCY OVERVIEW*CAUTION HARMFUL IF SWALLOWED.

HARMFUL IF ABSORBED THROUGH SKIN. CAUSES MODERATE EYE IRRITATION.

Avoid contact with skin, eyes, or clothing.

Wash thoroughly with soap and water after handling.Remove contaminated clothing and wash before reuse Do not take internally.

Use with adequate ventilation.

in case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing.Not flammable or combustible.

May evolve oxides of sulfur (SOx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE : Eye, Skin HUMAN HEALTH HAZARDS -ACUTE: EYE CONTACT: Can cause moderate irritation.

SKIN CONTACT: Harmful if absorbed through skin.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.1/11 P4"NALCO SAFETY DATA SHEET PRODUCT ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC INGESTION:

Not a likely route of exposure.

Harmful if swallowed.

Can cause central nervous system depression, nausea, dizziness, vomiting, or unconsciousness.

INHALATION:

Not a likely route of exposure.

Repeated or prolonged exposure may irritate the respiratory tract.HUMAN HEALTH HAZARDS -CHRONIC: No adverse effects expected other than those mentioned above.14. FIRST AID MEASURES EYE CONTACT Immediately flush eye with water for at least 15 minutes while holding eyelids open. Get immediate medical attention.

SKIN CONTACT: Immediately flush with plenty of water for at least 15 minutes. Remove contaminated clothing.

Wash clothing before reuse. Get medical attention.

INGESTION:

Get medical attention.

Do not induce vomiting without medical advice. Do not give anything to drink.INHALATION:-

IF INHALED: Remove victim to fresh air. If not breathing, give artificial respiration, preferably mouth to mouth. Get medical attention.

NOTE TO PHYSICIAN:

Aspiration may cause lung damage. Probable mucosal damage may contraindicate the use of gastric lavage.15. IFIRE FIGHTING MEASURES FLASH POINT Not applicable Will not burn: inorganic or water-based product EXTINGUISHING MEDIA: Not expected to burn. Use extinguishing media appropriate for surrounding fire.FIRE AND EXPLOSION HAZARD: Not flammable or combustible.

May evolve oxides of sulfur (SOx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING -In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.2/11 SAFETY DATA SHEET"NALCO PRODUCT ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC I 16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS

Restrict access to area as appropriate until clean-up operations are complete.

Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection).

Stop or reduce any leaks if it is safe to do so.Keep people away from and upwind of spill/leak.

Ventilate spill area if possible.METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material.

Place residues in a suitable, covered, properly labeled container.

Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal.

Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material.

Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water., If drains, streams, soil or sewers become contaminated, notify local authority.

17. 1 HANDLING AND STORAGE HANDLING: Do not get in eyes, on skin, on clothing.

Do not take internally.

Use with adequate ventilation.

Do not breathe vapors/gases/dust.

Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ensure all containers are labeled. Avoid contamination of food and foodstuffs.

STORAGE CONDITIONS:

Store in suitable labeled containers.

Store the containers tightly closed. Store separately from acids. Store in a cool well ventilated area away from direct sunlight.SUITABLE CONSTRUCTION MATERIAL: Stainless Steel 304, Neoprene, Buna-N, Polyurethane, EPDM, Polypropylene (rigid), Polyethylene (rigid), CPVC (rigid), Plasite 4300, Plasite 7122, 100% phenolic resin liner, Epoxy phenolic resin, Chlorosulfonated polyethylene rubber, Fluoroelastomer, Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.UNSUITABLE CONSTRUCTION MATERIAL: Brass 18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS : This product does not contain any substance that has an established exposure limit.ENGINEERING MEASURES: General ventilation is recommended.

Use local exhaust ventilation if necessary to control airborne mist and vapor.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.3/11

)' NALCO SAFETY DATA SHEET PRODUCT ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC RESPIRATORY PROTECTION:

Where concentrations in air may exceed the limits given in this section, the use of a half face filter mask or air supplied breathing apparatus is recommended.

A suitable filter material depends on the amount and type of chemicals being handled. Consider the use of filter type: Organic vapor cartridge, with a Particulate pre-filter.

In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection.

HAND PROTECTION:

When handling this product, the use of chemical gloves is recommended.

The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable.

Gloves should be replaced immediately if signs of degradation are observed.SKIN PROTECTION:

Wear standard protective clothing.EYE PROTECTION:

Wear safety glasses with side-shields.

HYGIENE RECOMMENDATIONS:

Use good work and personal hygiene practices to avoid exposure.

Keep an eye wash fountain available.

Keep a safety shower available.

If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals.

When handling this product never eat, drink or smoke.HUMAN EXPOSURE CHARACTERIZATION:

Based on our recommended product application and personal protective equipment, the potential human exposure is: Low 19. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Colorless Clear ODOR None SPECIFIC GRAVITY 1.4 @ 82.4 -F / 28.0 -C DENSITY 11.6 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 10.2-12.4 VISCOSITY 5 cps FREEZING POINT -21 'F / -29 'C VAPOR PRESSURE 11.5 mm Hg @ 68 "F / 20 "C VOC CONTENT 0.0 % Calculated Note: These physical properties are typical values for this product and are subject to change.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.4/11

)4NALCO SAFETY DATA SHEET PRODUCT ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC 10. STABILITY-AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.CONDITIONS TO AVOID : Avoid extremes of temperature.

MATERIALS TO AVOID: Reducing agents Acids Contact with strong acids (e.g. sulfuric, phosphoric, nitric, hydrochloric, chromic, sulfonic)may generate heat, splattering or boiling and toxic vapors. Oxidizing agents Acids Contact with strong acids (e.g.sulfuric, phosphoric, nitric, hydrochloric, chromic, sulfonic) may generate heat, splattering or boiling and toxic vapors.HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions:

Oxides of sulfur 11. TOXICOLOGICAL INFORMATION The following results are for the product.ACUTE ORAL TOXICITY: Species: Rat LD50: > 5,000 mg/kg Test Descriptor:

Product ACUTE DERMAL TOXICITY: Species: Rabbit LD50: > 5,000 mg/kg Test Descriptor:

Product ACUTE INHALATION TOXICITY: Species: Rabbit LC50: > 2.18 mg/I (4 hrs)Test Descriptor:

Product PRIMARY SKIN IRRITATION:

Species: Rabbit Draize Score: 0/8.0 Test Descriptor:

Product PRIMARY EYE IRRITATION:

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.5/11

)4NALCO SAFETY DATA SHEET PRODUCT ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Species: Draize Score: Test Descriptor:

Rabbit 7 /110.0 Product SENSITIZATION

The results of testing on guinea pigs showed this material to be non-sensitizing.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).HUMAN HAZARD CHARACTERIZATION:

Based on our hazard characterization; the potential human hazard is: Low 12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the product.ACUTE FISH RESULTS: I Species I Exposure LC50 I Test Descriptor Fathead Minnow 96 hrs > 5,000 mg/I Product ACUTE INVERTEBRATE RESULTS: I Species I Exposure LC50 EC50 Test Descriptor Ceriodaphnia dubia 48 hrs > 5,000 mg/I Product MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface)

Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models.If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; Air Water Soil/Sediment

<5% 30 -50% 30 -50%The portion in water is expected to be soluble or dispersible.

BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate.

Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.6/11 R4NALCO SAFETY DATA SHEET SPRODUCT ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION Based on our hazard characterization, the potential environmental hazard is: Low Based on our recommended product application and the product's characteristics, the potential environmental exposure is: Moderate If released into the environment, see CERCLA/SUPERFUND in Section 15.113. 1 DISPOSAL CONSIDERATIONS If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.As a pesticide waste, consult the FIFRA label for any additional handling, treatment, or disposal requirements.

For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.114. I TRANSPORT INFORMATION The information in this section is for reference only andshould not take the place of a shipping paper (bill of lading)specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation.

Typical Proper Shipping Names for this product are as follows.LAND TRANSPORT:

Proper Shipping Name: AIR TRANSPORT (ICAO/IATA):

PRODUCT IS NOT REGULATED DURING TRANSPORTATION PRODUCT IS NOT REGULATED DURING TRANSPORTATION Proper Shipping Name: MARINE TRANSPORT (IMDG/IMO)" Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION 115. 1 REGULATORY INFORMATION This section contains additional information that may have relevance to regulatory compliance.

The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment.

Nalco accepts no liability for the use of this information.

NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.7/11 SAFETY DATA SHEET)NALCO ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC Sodium Bromide: Non-Hazardous CERCLAISUPERFUND, 40 CFR 302: Notification of spills of this product is not required.SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) -SECTIONS 302, 311, 312, AND 313: SECTION 302 -EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 -MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous.

The product should be reported under the following indicated EPA hazard categories:

X Immediate (Acute) Health Hazard-Delayed (Chronic)

Health Hazard-Fire Hazard-Sudden Release of Pressure Hazard-Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 -LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA): This product is exempted under TSCA and regulated under FIFRA. The inerts are on the Inventory List.NSF NON-FOOD COMPOUNDS REGISTRATION PROGRAM (former USDA List of Proprietary Substances

&Non-Food Compounds):

NSF Registration number for this product is : 143073 This product is acceptable for treatment of cooling and retort water (G5) in and around food processing areas.FEDERAL INSECTICIDE, FUNGICIDE AND RODENTICIDE ACT (FIFRA)" EPA Reg. No. 1706-235 In all cases follow instructions on the product label.This product has been certified as KOSHER/PAREVE for year-round use INCLUDING THE PASSOVER SEASON by the CHICAGO RABBINICAL COUNCIL.FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4 /formerly Sec. 311 : This product may contain trace levels (<0.1% for carcinogens, <1% all other substances) of the following substance(s) listed under the regulation.

Additional components may beunintentionally present at trace levels.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198 , (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.8/11 PNALCO SAFETY DATA SHEET PRODUCT ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC I Substance(s)

I Citations.Sodium Hydroxide Sec. 311 CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class l and II Ozone Depleting Substances)

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product.MICHIGAN CRITICAL MATERIALS:

Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.STATE RIGHT TO KNOW LAWS: Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels.INTERNATIONAL CHEMICAL CONTROL LAWS: CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA)The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification

& Assessment Scheme (NICNAS).CHINA All substances in this product comply with the Provisions on the Environmental Administration of New Chemical Substances and are listed on the Inventory of Existing Chemical Substances China (IECSC).EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories.

JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Existing and New Chemical Substances list (ENCS).KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL)Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198

° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.9/11 SAFETY DATA SHEET)041'PRODUCT NALCO ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours) CHEMTREC NEW ZEALAND All substances in this product comply with the Hazardous Substances and New Organisms (HSNO) Act 1996,and are listed on or are exempt from the New Zealand Inventory of Chemicals.

PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines Inventory of Chemicals

& Chemical Substances (PICCS).116. 1 OTHER INFORMATION Due to our commitment to Product Stewardship, we have evaluated the human and environmental hazards and exposures of this product. Based on our recommended use of this product, we have characterized the product's general risk. This information should provide assistance for your own risk management practices.

We have evaluated our product's risk as follows:* The human risk is: Low* The environmental risk is: Low Any use inconsistent with our recommendations may affect the risk characterization.

Our sales representative will assist you to determine if your product application is consistent with our recommendations.

Together we can implement an appropriate risk management process.This product material safety data sheet provides health and safety information.

The product is to be used in applications consistent with our product literature.

Individuals handling this product should be informed of the recommended safety precautions and should have access to this information.

For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations.

Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.10/11 N4NALCO SAFETY DATA SHEET PRODUCT ControlBrom CB70 EMERGENCY TELEPHONE NUMBER(S)(800) 424-9300 (24 Hours)CHEMTREC Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight T M CD-ROM Version), Ariel Research Corp., Bethesda, MD.Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPST M CD-ROM Version), Micromedex, Inc., Englewood, CO.Ariel Insight T M (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel InsightTM0 CD-ROM Version), Ariel Research Corp., Bethesda, MD.The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS T M CD-ROM Version), Micromedex, Inc., Englewood, CO.Prepared By: Product Safety Department Date issued : 05/20/2011 Version Number: 1.13 Nalco Company 1601 W. Diehl Road -Naperville, Illinois 60563-1198

-(630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access.11/11