Text

National Pollutant Discharge Elimination System (NPDES) Permit No. TN0020168 - Request for Raw Water Treatment Modification
	ML091190175
Person / Time
Site:	Watts Bar
Issue date:	04/15/2009
From:	Hutchison D; Tennessee Valley Authority
To:	Janjic V; Office of Nuclear Reactor Regulation, State of TN, Dept of Environment & Conservation, Div of Water Pollution Control
References
	Download: ML091190175 (109)
	v • d • e

Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 April 15, 2009 Mr. Vojin Janjic, Permit Writer Tennessee Department of Environment & Conservation Division of Water Pollution Control Sixth Floor, L & C Annex 401 Church Street Nashville, Tennessee 37243-1534

Dear Sir:

WATTS BAR NUCLEAR PLANT (WBN) - NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT NO.

TN0020168- REQUEST FOR RAW WATER TREATMENT MODIFICATION.

In accordance with the NPDES permit, Part III, G, WBN respectfully requests an amendment to the current raw water treatment plan to include a change in suppliers of our water treatment products. Chemicals previously approved under the former vendor may continue to be used.

The new suppliers products are "similar" products containing "essentially the same chemical" as products previousely approved by the Division.

The processes and frequencies of applying the products will not change.

In addition, the discharge concentrations of the replacement chemicals will remain the same as the currently approved chemicals to ensure the same high level of protection for aquatic life in the Tennessee River while increasing the flexibility of plant equipment options. Finally, WBN respectively requests the Division's approval no later than June 1, 2009 in order for the site to begin summer treatments with the new vendor's chemicals. GE Betz will be assuming responsibilities for TVA's Raw Water Treatment program from Nalco no later than June 30, 2009.

Enclosed for your review and consideration are the following tables: (1) the Raw Water Chemical Additives, proposed chemicals as well as those currently in use (depicted in parenthesis and/or footnote), (2) the Raw Water Application Guide, (3) Calculations Showing the Worst Case Scenario, and (4) Product Toxicity Data Summary and Comparison with Maximum Instream Wastewater Concentrations (IWC). For your convenience, WBN has enclosed a summary of the Raw Water Treatment Programs, a Treatment Plan Overview and

Toxicity Summaries. Finally, a MSDS for each product with an accompaning Product Bulletin have been provided.

WBN is confident that these change requests to the raw water treatment program will allow the same high level of protection for aquatic life in the Tennessee River while increasing the flexibility of plant equipment treatment options.

Should you need additional copies, or have comments or questions, contact me at (423.365.8016) or by email at djhutchison@tva.gov, or Jerri Phillips of my staff at (423.365.3576) or by email at jlphillips@tva.gov.

I certify under penalty of law that I have personally examined and am familiar with the information submitted, and based on my inquiry of those individuals immediately responsible for obtaining information, I believe the submitted information is true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment.

Sincerely, Darrin Hutchison Chemistry/Environmental Technical Support Manager Enclosures Cc:

Dr. Richard Urban Tennessee Department of Environment & Conservation Division of Water Pollution Control Environmental Assistance Center 540 McCallie Avenue, Suite 550 Chattanooga, Tennessee 37402-2013 B. M. Eiford-Lee, MOB 1F-WBN M.D. Skaggs, ADM 1V-WBN G.A. Boerschig, MOB 2R-WBN M. Brandon ADM 1L-WBN A. A. Ray, WT 11A-K D. E. Pittman, BR 4T-C L. P. Johnson, LP 5D-C G.R. Signer, WT 6A-K EDMS, WT CA-K (enclosure)

Raw Water Chemical Additives at Watts Bar Nuclear Plant1 - 2009 PRODUCT PURPOSE FREQUENCY ACTIVE % ACTIVE REPRESENTATIVE AQUATIC TOXICITY DISCHARGE of Discharge INGREDIENTS INGREDIENT /DESCRIPTOR CONCENTRATION' (ppm active ingredients) (ppm active ingredients)

Flogard Iron Corrosion Continuous Zinc Chloride; 12 Zinc Steam Electric Guidelines for Zn =1.0 <0.2 Total Zinc MS6209' Inhibition (river temp > Orthophosphate 52 Phosphate Zn acute and chronic WQC = 0.120 <0.2 Total P (replaces 60°F) No applicable standards for P MSW-109)j 7-d IC 25 = 1.22 (C. dubia) 7-d IC25 = 3.2 (P promelas)

Depositrol Dispersant to Continuous Copolymer 30 7-d IC 25 = 161 (C. dubia) <0.2 PY5200 facilitate iron 7-d IC25 = 600 (P. promelas)

(replaces corrosion Nalco 73200)5 inhibition Inhibitor Copper Periodic Sodium Tolyltriazole 50 7-d IC25 = 10 (C. dubia) <0.25 AZ8100 Corrosion 7-d IC25 = 28 (P. promelas)

(replaces Inhibition Nalco 1336)5 Sprectrus Surfactant to Periodic Nonionic Surfactant 15 7-d IC25 = 98 (C. dubia) <2.0 BD1500 facilitate 7-d IC25 = 450 (P. promelas)

(replaces oxidizing Nalco 7355 l) biocides Towerbrom Oxidizing Periodic Sodium Bronmide & 96 48-h LC50 = 2.43 (D. magna) 0. tO Chlorine 60m (replaces Biocide Sodium 48-h LC 5s= 0.679 (P. promelas) (Total Residual)

Towerbrom (Chlorination) Dichloroisocyanurate 960)'

Spectrus Oxidizing Continuous Bromo-Chloro, 96 48-h LC5 0 = 0.45(D. magna) 0.10 Chlorine OX1200 Biocide Dimethyl Hydantoin 96-h LC5 0 = 2.25(P. promelas) (Total Residual)

(replaces (Chlorination) (BCDMH)

Nalco 901 G)_

Spectrus De- Periodic3 Sodium Bisulfite 38 48-h Static screen = 760 (D. magma) <10 DT1404 chlorination (replaces Nalco CA-35)5 Spectrus Non Oxidizing Periodic Alkyl Dimethyl 50 7-d 1C25 = 0.049 (C. dubia) <0.001 active ingredient in CT1300 4 Biocide Benzyl Ammonium 7-d IC2,s= 0. 130 (P. promelas) stream after muxing (replaces (Mollusk Chloride <0.05 measured in effluent Hl50M)5 Control) (ADBAC)

-OR-4/14/2009 WBN Raw Wattr Treatment Plan I

Raw Water Chemical Additives at Watts Bar Nuclear Plant - 2009 (continued)

PRODUCT PURPOSE FREQUENCY ACTIVE % ACTIVE REPRESENTATIVE AQUATIC TOXICITY DISCHARGE of Discharge INGREDIENTS INGREDIENT /DESCRIPTOR CONCENTRATION' (ppm active ingredients) (ppm active ingredients)

Spectrus Non Oxidizing Periodic Dirnethylbenzylamm 8 Quat 3 brood IC,,=0.004 (C. dubia) <0.001 total active ingredients NXI 104' Biocide onium Chloride & 5 DGH 7-d IC25=0.048 (P. promelas) in stream after mixing (replaces (Mollusk Dodecylguanidine <0.031 quaternary ammonium Spectrus Control) Hydrochloride compound measured in NX 0-4)5 effluent Bentonite Detoxification Periodic3 Sodium Silicate 100 No toxicity data available, No treatment <10 Clay, of non (Bentonite Clay) standards applicable. An industry standard for oxidizing detoxification.

biocides Liquid Bleach5 Oxidizing Continuous Sodium Hypochlorite 12.5 24-h LC50=0,005 (C. dubia) 0.10 Chlorine Biocide 48-h LC50 =0.032 (D. magna) (Total Residual)

(Chlorination) 96-h LC, 0=0.080 (P. promelas)

1. The maximum discharge concentration is indicated EXCEPT where noted. Concentrations are achieved through a combination of dilution and dechlorination with sodium bisulfite or detoxification with bentonite clay.

2. Supplemental Condenser Cooling Water (SCCW) and River flow conditions have a significant impact on these discharge concentrations.

Please see Rationale for this product.

3. Dechlorination and detoxification chemicals are applied as needed to ensure the discharge limitations identified in this table are met.

4. Non-oxidizing biocide treatments are not applied at the same time as oxidizing biocide treatments.

5. Denotes chemicals previousely approved by the Division.

4/15/2009 WBN Raw Water Treatment Plan 2

Raw Water Chemical Application Guide 1 Product Injection Point Max Feed In Plant Frequency of' Average Estimated Maximum Daily (ppm) Target Application I Duration of Max Days Usage (lbs)2 (ppm) Application. per Year Flogard MS6209 IPS 0.3 0.2 Daily Daily 365 200' Depositrol PY5200 IPS 0.3 0.3 Daily Daily 365 200 Inhibitor AZ8100 Specific HXs 20 5-20 10 / year 2 days 20 2,2 00 Spectrus BD1500 fPS 5 1-2 204 days per 0.5 hrs/day 204 70 (Routine App) year Spectrus BD1500 Cooling Towers 5 1-2 26 days per 0.25 hrs/day 26 415 (CT App) year Towerbrom 60m4 IPS (as a backup for 5 0.3-2 300 days per 24 hrs 300 2,375 (Routine App) BCDMH) year Towerbrom 60m4 (CT CT Basin 20 0.8-2 52 days per 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months 4 52 2,200 App) year Spectrus OX1200 4 IPS 5 0.3-2 300 days per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 300 2,375 (Routine App) year Spectrus DT1404 CT Basin Discharge. 10 1.3-3.3 26 days per 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months 26 5,615 (CT App) Weirs year Spectrus DT1404 CT Basin Discharge. 10 0.4-3.3 2 / year 30 days 100 22,450 (24 hr/day Chlorination) Weirs Spectrus CT1300 IPS6 5 0.5-3 26 /year 2 days 56 1,190 Spectrus NX 1104' rPS6 3 0.5-3 26 / year 2 days 56 1,190 Bentonite clay CT Basin Discharge. 10 2-10 26 / year 2.2 days 56 11,990 Weirs Liquid Bleach IPS 5 0.3-2 300 days per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 300 2,375 year Liquid Bleach CT Basin 20 0.8-2 52 days per 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months 52 2,200

_year 4/14/2009 WBN Raw Water Treatment Plan 3

Raw Water Chemical Additives at Watts Bar Nuclear Plant - 20091 (continued)

1. Concentrations and usage are expressed for the active ingredient(s) shown on the first page of this plan.

2. Maximum Daily Usage provides an indication of loading in the receiving stream. It is the maximum amount of active ingredients for the worst case scenario of flow and feed concentration being proposed plus a 10% margin of error. WBN will track daily usage and will request a change to this plan should an increase in maximum daily usage become necessary for the continued safe operation of the plant.

3. 200 pounds for zinc and 200 pounds for phosphorous.

4. Towerbrom 60m and Spectrus OX1 200 are 96% active products each producing 57% free halogen (chlorine or bromine). Actual loading to the

,river for chlorine when WBN is dechlorinating the effluent is essentially zero and chlorine will always be < NPDES permit limits at NPDES discharge points.

5. 1,190 lbs for the sum of both quaternary amines in this product.

6. Molluscicides are primarily injected at the Intake Pumping Station (IPS), however, some exceptions do exist for small sections of piping such as the Essential Raw Cooling Water (ERCW) cross ties for molluscicide injection.

4/14/2009 WBN Raw Water Treatment Plan 4

Calculations Showing Worst Case Scenario (final values rounded to the nearest 5 lbs)

MS6209 0.3 trg 1 lb 50,000 gal 3.785 1 60 min 24 hr 1.10 = 200 lbs Zn and 200 lbs P per day 0.3 ppim active 1 454,000 mg min gal 1hr day PY5200 0. 3 mg 1 lb 50,000 gal 3.785 1 60 min 24 hr 1.10 = 200 lbs PY5200 0.3 ppm active 1 454,000 mg mrin g11 1 hr day AZ8100 20 mg 1 lb 50,000 gal 3.785 1 60 min 4 hr 1.10 = 2,200 lbs AZ8100 20 ppm active 1 454,000 mng rmin gal I hr day BD1500 5 mg 1 lb 50,000 gal 3.785 1 60 min 0.5 hr .10. = 70 lbs BD1500 (Rtn App) 5 ppm active 1 454,000 mg min gal I hr day BDI500' 5 mg 1 lb 9,000,000 gals 3.785 1 1.10 = 415 lbs BD1500 (CT App) 5 pprn active 1 454,000 mg gal TowerBrom 60m 5 mg 1 lb 36,000 gal 3.785 1 60 min 24 1.10 = 2,375 lbs TowerBrom (Rtn App) 5 ppm active 1 454,000 mng mm al 1 hr day TowerBrom 60mi 20 mng 1 lb 12,000,000, gals 3.7851 t1.[0 = 2,200 lbs TowerBrom (CT App) 20 ppm active 1 454,000 mg gal Spectrus OX1200 5 mg 1[lb 36,000 gal 3.785 1 60 min 24 I 10 = 2,375 lbs OX1200 G (Rtn App) 5 *pm active 1 454,000 mg min gal [ hr day 1)T1404 10 nmg 1 lb 170,000 gals 3.785 1 60 mnm 6 hrs 1.10 = 5,615 lbs DT1404 (CT App) 10 ppm active 1 454,000 mag min Gal hr day DT1404 10 mg 1 lb 170,000 gal 3.785 1 60 rain 24 hr 1.10 = 22,450 lbs DT1404(Dechlor) 10 ppm active 1 454,000 mg min gal 1 hr day CT1 300 3 mg 1 lb 30,000 gal 3.785 1 60 min 24 hr 1. 10 = 1,190 lbs SPECTRUS CT1300 (quat) 3 ppm active 1 454,000 mg min gal 1 hr day I NX 1104 3 mg 1 lb 30,000 gal 3.785 1 60 min 24 hr 1.10 = 1,190 lbs Spectrus NX 1104 (quat) 3 pprn active 1 454,000 mng min gal [ hr day Bentonite Clay' 10 mg 1 lb 90,000 gal 3.785 1 60 rmin 24 h-r I. t0 = 11,190 lbs Bentonite Clay 10 ppm active 1 454,000 mg rrin Cal I hr day Liquid Bleach 5 mg 1 lb 36,000 gal 3.7851 60 rin 24 I 10 = 2,375 lbs Liquid Bleach (Rtn App) 5 ppm active 1 454,000 m-g min g al

- hr day Liquid Bleach 20 mg 1 lb 12,000,000 gals 3.7851 1-10 = 2,200 lbs Liquid Bleach (CT App) 20 ppm active 1 454,000 mag Gal

1. The Cooling Tower applications of BD1500 and Towerbrorn 60m were performed assunng a maximum volume to be treated in the basin.

2. Bentonite clay is fed at 5x product dose (or 10x active dose) for quats. It is applied at the inlet to the SCCW and Cooling Tower Blow Down (CTBD) weirs. Max ppm feed dose of 10 ppm is based on the worst case scenario of 3 ppm active Spectrus CT1300 or Spectrus NX 1104 max feed dose, with a maximum IPS flow rate of 30,000 gpm, and with minimum dilution from a combined SCCW and CTBD discharge flow rate of 90,000 gpm.

4/14/2009 WBN Raw Water Treatment Plan 5

TNO020168 RATIONALE for Raw Water Chemical Additives WBN Raw Water Treatment Programs The fundamental approach and active ingredients for the various treatment programs at WBN have not changed significantly in more than 13 years. Products with slightly different formulations of the same active ingredients or constituents of concern and the processes or frequencies of applying those products have changed periodically.

1. Dispersants used year round to facilitate passivation of carbon steel piping and surfactants used briefly during oxidizing biocide treatments have functioned a bit differently over the years with some differences in active ingredients, but all have been of low toxicity.

2. Passivation (protection from corrosion) of carbon steel piping continues to be pursued with solutions containing zinc and phosphorous. These solutions have a greater tendency for toxicity than dispersants and surfactants, but have been managed and discharged at concentrations below any treatment standards or potential toxicity concerns.

3. Passivation of copper piping occurs on a very small scale and results in only occasional releases of very small quantities primarily due to maintenance activities. Tolytriazole is only considered slightly toxic and discharge limits do not approach any levels of concern.

4. Treatment with oxidizing biocides has had prior approval. Based on annual biological assessments and periodic toxicity testing, permit limitations of 0.10 ppm have been sufficient to ensure both chronic and acute toxicity concerns are being addressed for oxidizing biocides.

5. Treatment with non-oxidizing biocides use quaternary amine compounds with similar toxicities for mollusk control. While this is perhaps the most toxic chemical treatment program used, detailed calculations are performed for each treatment to ensure discharge limitations are observed. In addition, WBN has performed biomonitoring at OSN 101 and OSN 113 twice per year since this product use was initiated August 2004. Short-term chronic testing of OSN 101 and OSN 113 samples have shown no toxicity to fathead minnows or daphnids for all biomonitoring tests. Detoxifing the quaternary amine compounds with bentonite clay will be performed when required.

NOTE: Oxidizing biocide treatments do not occur at the same time as non-oxidizing biocide treatments.

6. The most significant change in this proposal is WBN's proposal to change suppliers of our water treatment products. The new suppliers products are "similar" products containing "essentially the same chemical" as products previousely approved by the Division. The processes and frequencies of applying the products will not change. In addition, the discharge concentrations of the replacement chemicals will remain the same as the currently approved chemicals to ensure the same high level of protection for aquatic life in the Tennessee River while increasing the flexibility of plant equipment options..

4/15/2009 Raw Water Treatment Plan Rationale 6

TN0020168 RATIONALE fbi Paw Water Chemical Additives WBN Treatment Plan Overview and Toxicity Summaries Document Summary WAn overview of the proposed raw water treatment programs at WBN.

Plan Overview. doc Bench top toxicity studies on individual products and the synergistic effects of the various treatment programs have been cbnducted on three occasions for TVA nuclear facilities. The simulated effluents tested included both Toxicity molluscicides contained in this treatment plan. Results from these studies Surrmryim.doc are incorporated into the attached summary of toxicity endpoints compared with projected instream product concentrations. Reports are available upon request. Ongoing documentation for protection against synergistic and/or chronic impacts by WBN's treatment programs is provided by routine 7 day toxicity testing at OSN 101 (diffuser discharge) and OSN 113 (supplementary condenser cooling water discharge). WBN has never failed a toxicity test at either outfall.

4/14/2009 Raw Water Treatment Plan Rationale 7

TNO020168 Raw W-ýiter Cheni cal Addi tives WBN AN OVERVIEW OF WATER CHEMICAL ADDITIVES Inspection and chemical treatment programs have been implemented at TVA Watts Bar Nuclear Plant to control fouling, plugging, and pipe wall thinning of the raw water systems. Most of the chemicals used in these treatment programs are added at the Intake Pumping Station (IPS) to ensure all raw water systems are protected. Several of these systems, the High Pressure Fire Protection and the Essential Raw Cooling Water (ERCW) systems in particular, are essential for the safe operation of the plant. To ensure protection of the receiving stream, water treatment processes are controlled to comply with State Water Quality criteria and applicable NPDES permit conditions. WBN proposes to show compliance with the treatment plans below using mass balance calculations where possible.

CORROSION INHIBITION of CARBON STEEL PIPING and IRON PIPING WBN currently uses one chemical to provide corrosion protection for carbon steel piping in the plant, a zinc/orthophosphate product known as MSW-1 09, which contains 12.6% zinc chloride and 36% orthophosphate. It will continue to be necessary to apply the aforementioned product when the river temperature is equal to or greater than 60 degrees Fahrenheit. The concentration of zinc and phosphorous in the plant effluents will not exceed 0.2 ppm and no changes are being proposed for this treatment program.

To facilitate iron corrosion inhibition, WBN proposes to replace the dispersant PCL-401 with 73200, a non-toxic 36% high stress polymer. The dispersant will be fed year-round if required.

RAW COOLING WATER BIOCIDE TREATMENTS Protection of the raw cooling water pipe systems requires oxidizing biocide (chlorination) and non-oxidizing biocide treatments to control macro invertebrates and microbiologically induced corrosion (MIC). The following raw water chemical additions were evaluated for optimal effectiveness and compliance with the NPDES permit.

OXIDIZING BIOCIDE TREATMENT WBN proposes to maintain continuous treatment in plant systems for mollusk control and microbiological activity with H-901G, a product previously approved by the Division of Water Pollution Control. As an alternative to H-901 G, WBN is requesting approval to use liquid bleach for continuous routine oxidizing biocide treatment of the raw water system, including the ERCW and Condenser Circulating Water (CCW). Continuous oxidation is necessary to ensure plant safety as TVA has recently observed year-round veliger (mussel larvae) infestations. Utilization of liquid bleach as a component of the oxidizing biocide plan represents potential improvements in treatment effectiveness in addition to cost effectiveness. No increase in chlorine discharge limits .is requested in this plan.

Due to the potential need to attain higher in-plant target values for chlorine, WBN proposes to continue to de-chlorinate prior to discharging as needed using sodium bisulfite (Nalco 7408) solutions to ensure the current discharge limit of 0.1-ppm chlorine is not exceeded. Sodium bisulfite will be ratio-fed at a rate of approximately 4 ppm product for every 1.0 ppm of chlorine.

The de-chlorination process will be controlled to ensure that the discharge concentration of chlorine will not exceed 0.1 ppm.

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TN0020168 T OaO2Ow Water Chemical Additives WBN AN OVERVIEW OF WATER CHEMICAL ADDITIVES (continued)

Oxidizing biocides are generally more effective when used in conjunction with a bio-penetrant or surfactant; therefore, WBN proposes to continue to utilize the option to use Biodetergent 73551 as a surfactant to facilitate oxidizing biocide applications. Surfactant addition will be controlled.

such that the discharge concentration of Biodetergent 73551 will not exceed 2.0 ppm.

NON OXIDIZING BIOCIDE TREATMENT (MOLLUSK CONTROL)

WBN proposes to continue to use non-oxidizing biocides H150M or Spectrus NX1104. WBN requests addition of the non-oxidizing biocide H1 50M to the Biocide Corrosion Treatment Plan (B/CTP) approval. H-1 30M was previously authorized for use in the B/CTP and a courtesy notification was made on April 22, 2005, stating that H-130M would be replaced with Nalco H1 50M. These are "similar" products containing "essentially the same chemical" as both products contain only quaternary ammonium compounds (quats) as the active ingredients with almost identical toxicities.) When river temperatures are greater than or equal to 60 degrees Fahrenheit, WBN will terminate oxidizing biocide treatment and perform a periodic (minimum of 4 times per train per year) non-oxidizing biocide treatment of the raw water systems. WBN proposes to treat up to the allowable instream concentrations for the active ingredients in these products. For short-term (4-6 hour), low concentration applications for cross-tie treatments, WBN will show by calculation that the required concentrations are being met and document the minimum flow in the river during the treatment period.

WBN will need to target concentrations in the plant for routine A & B Train treatments (48-72 hours) that have the potential to exceed allowable instream concentrations. During these treatments, WBN proposes to continue to detoxify the effluent as needed by treatment with bentonite clay to ensure NPDES discharge limitations are met. The effectiveness of detoxification will be confirmed with twice daily sampling for the active ingredient in the effluent during the treatment period.

COOLING TOWER TREATMENT PLAN WBN currently adds the oxidizing biocide Towerbrom 960 to the cooling tower basin on a periodic basis for biological control. Towerbrom 960, composed of 89% Sodium Dichloroisocyanurate and 7% Sodium Bromide, dissolves to release bromine and chlorine. As previously approved, Towerbrom 960 will be added until a minimum residual of 0.5 ppm chlorine is achieved in the cooling tower basin. This treatment will be performed with the diffusers and the Supplemental Condenser Cooling Water (SCCW) system isolated or, at WBN's discretion WBN will de-chlorinate as needed using sodium bisulfite solutions to ensure the current discharge limit of 0.1 ppm chlorine is not exceeded. Sodium bisulfite (Nalco 7408) will be ratio-fed at a rate of 4 ppm product for every 1.0 ppm of chlorine. WBN proposes to continue to utilize the option to add Biodetergent 73551 to enhance Towerbrom effectiveness. The process will be controlled to ensure that the discharge concentration of chlorine to the Tennessee- River will not exceed 0.1 ppm and the discharge concentration of Biodetergent 73551 will not exceed 2.0 ppm.

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TNO020168 Raw Water Chemical Additives WBN AN OVERVIEW OF WATER CHEMICAL ADDITIVES (continued)

In order to maintain the operating efficiency of the Training Center Cooling Tower, WBN currently continuously adds SWS 4550, a non-corrosive, inorganic phosphate-free corrosion and scale inhibitor. SWS 4550 is composed of Phosphino-carboxylic acid copolymer; Sodium chloride; Diethylenetriaminepenta-methylene phosphonic acid, Ethylenediamine tetracetic acid, Sodium salt; and Sodium Hydroxide. In TVA toxicity tests, the lowest concentration that exhibited no toxicity wt.s equal to the maximum concentration expected in the blowdown (50 ppm/v). In other words, the cooling tower wastestream is not be toxic (due to SWS 4550) even as it comes out of the cooling tower into the YHP. As the Training Center cooling tower blowdown, a maximum of 1,000 gallons per day, was previously approved for disposal via the Construction Runoff Holding Pond, WBN has re-routed cooling tower blowdown from the Training Center to the yard holding pond that discharges via NPDES permitted OSN 101. The addition of this effluent will have an insignificant impact on OSN 101 flows (<0.1%).

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Product Toxicity Data Summary and Comparison with Maximum Instreami Wastewater Concentrations (IWC) 101 Instream Waste 113 Instream Waste Maximum Discharge Concentration Concentration Acute Endpoints Chronic Endpoints Concentration (IWC 2.37%) (IWC = 7.58%)

(ppm as active) (ppm as active) (< chronic endpoints?) (< chronic endpoints'?)

Chemical Organism1 1 48-h LC 50 96-h LC5 o NOEC IC 25 (ppm as active) (ppm as active) (ppm as active)

Flogard EPA database Zn CMC = 0.120 Zn CCC = 0.120 MS6209 C. dubia 1.22 0.2 2 0.005 0.05 P. promelas 3.2 Depositrol C. dubia 161 PY5200 Inlhibitor AZ8100 P. promelas C. dubia P. promelas 600 10 28 0.2 0.25 J, 0.005 0.006 0.015 0.019 Rainbow Trout Spectrus D. magna BD1500 C. dubia 98 P. promelas 450 2.0 0.047 0.152 Bluegill Rainbow Trout Towerbrom D. magna 2.43 -

60m P. promelas 0.679 - - 0.10 0.002 0.008 Bluegill - 0.417 -

Rainbow Trout 0.359 Spectrus D. magna 0.45 OX1200 P. promelas 2.25 0.10 0.002 0.008 Bluegill Rainbow Trout Spectrus D. magna NOEC = 0 bT1404 D 760 10I 0.24 0.76

Product Toxicity Data Summary and Comparison with Maximum Instream Wastewater Concentrations (IWC), continued Maximum Discharge 101 Instream Waste 113 Instream Waste Concentration Concentration Concentration Acute Endpoints Chronic Endioints (<acute endpoints?) (< chronic endpoints?) (< chronic endpoints?)

(ppm as active) (ppm as active)

Chemical Organism1 48-h LC50 96-h LC50 I NOEC IC 25 (ppm as active) (ppm as active) (ppm as active)

Spectrus C. dubia 0.18 0.049 <0.05 measured in <0.001 active <0.004 active CT1300 _ IF -

__fflient I ingredient in stream ingredient in stream P. promelas 0.2 0.130 after mixing after mixing D. magna 0.021/

Spectrus .013-NXI 104 NOEC C. dubia 0.074 0.009 0.004 P. prornelas - 0.377/ -

0.13- NOEC <0.031 quaternary <0.001 total active <0.002 total active P. promelas 0.420 0.087 0.048 anmoniurn compound ingredient' in stream ingredients in stream U. imbecillis - - - 9-day LC5 0 measured in effluent after mixing after mixing w/o silt=0.018; w/silt =0.139 B. 0.234 -

calyciflorus (24-h) _

Bentonite None 10 Product believed non- Product believed non-Clay toxic toxic Liquid D. magna 0.032 0. 10 Chlorine Bleach 3 C. dubia 0.005 (24h) (Total Residual)

P. promel as 0.080 2

Product Toxicity Data Summary and Comparison with-Maximum Instream Wastewater Concentrations (IWC)

(continued)

Notes:

1. Data Source: Manufacturer or TVA.

2. When SCCW is in service and there is zero river flow, a dilution factor of 4 is applicable to discharge concentrations (i.e. instream concentration is < 0.05). When SCCW is out of service there is a minimum flow interlock with Watts Bar Dam that ensures a minimum flow of 3500cfs exists in the river. Either situation is protective.

3.. Based on annual biological assessments and periodic toxicity testing, permit limitations of 0.10 total residual chlorine have been sufficient to ensure that chronic and acute toxicity concerns are being addressed for oxidizing biocides. It is widely accepted that WET methods are not reliable for assessing toxicity elicited by chlorine since residual chlorine degrades rapidly during sample holding periods and under ambient laboratory testing conditions. The toxicity values presented here were derived from tests that measured chlorine toxicity in freshly-prepared solutions in the laboratory and are therefore overly-conservative.

3

TN'0020168 RATIONALE for Raw Water Chemitcal Additives WBN Flogard MS6209 (Zinc Chloride and Phosphoric Acid mixture)

MS6209 contains carbon piping corrosion inhibitors. Since there is no specific toxicity data for this product, TVA toxicity data for zinc have been evaluated as part of this plan. Steam electric guidelines indicate a 1.0 ppm limit for zinc in cooling tower blow down effluents and the EPA freshwater WOC for zinc is 0.120 ppm. While the EPA freshwater WQC has not identified a limitation for phosphorous, a 1.0 ppm limit for phosphorous has been identified for potential phosphorous bearing cleaning solutions at OSN-1 07. The primary source of phosphorous in the TN river is likely due to runoff from livestock operations and the application of fertilizers. Therefore, it is proposed that WBN continue to limit zinc and phosphorous from chemical treatment programs to 0.2 ppm at the diffuser discharge sample point.

River flow rates and SCCW operation have a potential to impact the in stream concentration for the continuous application of these active ingredients. MS6209 feed rates are based on flow from the IPS and are not adjusted for SCCW flow conditions. When the SCCW is in operation, the amount of this product discharged through cooling tower blowdown (CTBD) is reduced by a factor of 4 (based on average daily discharges reported on the form 2C in the NPDES permit application). If there is zero flow in the river, the diffuser is isolated, but not the gravity fed SCCW system. Based on the maximum discharge concentration of 0.2 ppm and the dilution factor of 4, the actual discharge concentration in the SCCW effluent is 0.05 ppm and is still protective of the 0.120 ppm WOC. If the SCCW is out of service for several days, zinc concentrations will approach 0.2 ppm in the cooling tower blowdown. However, CTBD is not discharged through the WBN diffusers to the Tennessee River unless there is 3500 cfs river flow. Therefore, the in-stream WOC is still protected.

Document Summary "Flogard MS6209 Material Safety Data Sheet.

MSDS.pdf' "Flogard MS6209 Product Bulletin Fact Sheet.pdr' Depositrol PY5200 (Copolymer dispersant)

Depositrol PY5200 is a dispersant commonly used in water treatment programs to minimize fouling and under-deposit corrosion in the ERCW andRaw Cooling Water (RCW) systems. This product makes carbon piping corrosion inhibitors more effective (facilitate iron corrosion inhibition). This chemical is considered non-toxic according to the MSDS and toxicity studies. WBN proposes to feed PY5200 year round while ensuring that the concentration of the chemical will not exceed 0.2 mg/L in the effluent. The dispersant will be fed year-round if required.

Document Summary "Depositrol PY5200 Material Safety Data Sheet.

MSDS.pdf" "Depositrol PY5200 Product Bulletin Fact Sheet.pdf' 4/14/2009 Raw Water Treatment Plan Rationale 8

TNO020168 RATIONALE for Raw Water Chemical Additives WBN Inhibitor AZ81 00 (Sodium Tolytriazole)

Inhibitor AZ8100 is a corrosion inhibitor used to inhibit copper piping corrosion. This chemical is typically applied to closed loop cooling systems. WBN proposes to feed tolytriazole on a periodic basis to small portions of the ERCW and RCW systems. This will result in a discharge concentration of less than 0.25 ppm as tolytriazole in plant effluents. The toxicity data provided in the MSDS and the bench top studies conducted by TVA indicate that a discharge concentration of <0.25 ppm is extremely unlikely to produce any impact on aquatic life in the TN river.

Document Summary "Inhibitor AZ8100 Material Safety Data Sheet.

MSDS.pdf" "Inhibitor AZ8100 Product Bulletin Fact Sheet. pdf' Spectrus BD1500 (Nonionic Surfactant)

Spectrus BD1 500 is a non-ionic surfactant commonly used in water treatment programs to remove and disperse "soft foulant" (biofilm-enmeshed mud, silt and clay) deposits in cooling water systems. For routine chlorination treatments, this product is added for approximately 30 minutes prior to initiating treatment to enhance the effectiveness of oxidizing biocides/chlorination. This product is also fed for at least 15 minutes prior to Towerbrom treatments of the Unit 1 cooling tower basin. This product has a low toxicity and plant effluent will not exceed 2.0 mg/L of active ingredients.

Document Summary "Spectrus BD1500 Material Safety Data Sheet.

MSDS.pdf' "Spectrus BD1500 Product Bulletin Fact Sheet.pdf' 4/14/2009 Raw Water Treatment Plan Rationale 9

TN0020168 RATIONALE for Raw Water Chemical Additives WBN Towerbrom 60m (Sodium Bromide & Sodium Dichloroisocyanurate)

Towerbrom 60m is an oxidizing biocide, generating bromine and chlorine solutions when dissolved in water, used to control slime producing organisms. Towerbrom 60m is used to treat the Unit 1 cooling tower basin. When applied without isolating the SCCW or Diffuser discharge points, effluent(s) will be dechlorinated with sodium bisulfite (Spectrus DT1404) to assure that the TRO in the effluent does not exceed 0.1 mg/L. Confirmatory samples will be collected during each day of treatment and analyzed according to NPDES permit requirements to ensure discharge limitations are met. Furthermore, dechlorination will be used should in-plant targets threaten discharge limitations for chlorine.

Document Summary "Towerbrom 60m Material Safety Data Sheet.

granules MSDS.pdf'

-A TB_60M Spec Product Bulletin sheet.pdf' Spectrus OX1200 (1-Bromo-3-Chloro-5-Dimethyl-Hydantoin)

Spectrus OX1200 is an oxidizing organic biocide that puts 57% of its active ingredient into solution as bromine and chlorine. WBN may utilize Spectrus OX1200 for the routine continuous treatment of the plant's ERCW and RCW piping. Effluents will be dechlorinated should in-plant targets threaten discharge limitations for chlorine. When dechlorinating, confirmatory samples will be collected during each day of treatment and analyzed according to NPDES permit requirements to ensure discharge limitations are met. Chlorine is monitored 5 days per week at OSN 101 and OSN 113 in accordance with NPDES permit requirements to ensure discharge limitations are met.

Document Summary "Spectrus OX1200 Material Safety Data Sheet.

MSDS.pdf' "Spectrus OX1200 Product Bulletin Fact Sheet.pdf" 4/14/2009 Raw Water Treatment Plan Rationale 10

TNO020168 6RATIONALE for Raw Water Chemical Additive),; WBN Spectrus DT1 404 (Sodium Bisulfite)

Sodium Bisulfite is an industry standard for de-chlorinating effluents in addition to its widespread use as a flocculant and as a detoxifying agent for organics. This product has the potential to deoxygenate systems. However, effluent deoxygenation will not occur when the product is used according to the WBN proposed feed rates as sodium bisulfite reacts preferentially with halogens (chlorine and bromine) before it reacts with oxygen. While WBN will add sodium bisulfite to de-chlorinate effluents, significant oxygen depletion should not occur as any oxygen depleted is virtually immeasurable and the discharge quickly resaturates with oxygen from air contact. To assure that over feeding is not occurring, WBN will measure dissolved oxygen levels in the system and the effluent when this chemical is being used.

Document Summary "Spectrus DT1404 Material Safety Data Sheet.

MSDS.pdf' "Spectrus DT1404 Product Bulletin Fact Sheet.pdf' Spectrus CT1300 (Alkyl Dimethyl Benzyl Ammonium Chloride)

SPECTRUS CT1300 is a non-oxidizing biocide which contains a quaternary ammonium compound (quat). as the active ingredients for mollusk control. H-130M, also a quat, was previously approved for use by the Division. SPECTRUS CT1 300, and the previously approved quat products (H130M and H150M) are "similar" products containing "essentially the same chemical". SPECTRUS CT1 300 toxicity tests indicate that the acute toxicity is almost identical to the currently used quat product. The same discharge limitations of 0.05 ppm should be protective of aquatic life.

Actual active ingredient discharges are based on calculations that assume no demand in the system, thereby increasing the safety margin for instream protection. In addition, the requested discharge criteria for this product was determined by application of a safety factor of 10 to the mussel toxicity test endpoint.

When WBN needs to attain in plant target concentrations for the active ingredient in this product that will ensure protection of safety related equipment but threaten in stream criteria, WBN will ensure water quality is protected by adding bentonite clay to OSN 101 and OSN 113 to detoxify the active ingredient.

TVA's own studies as well as those of the manufacturer of this product indicate that bentonite clay will be very effective at detoxifying this product. The effectiveness of detoxification will be confirmed with twice daily sampling for the active ingredient in the effluent during the treatment period.

In addition, the use of SPECTRUS CT1300 shall be limited to periods of time when the Tennessee River flow is 2,262 MGD or greater.

Document Summary "Spectrus CT1300 Material Safety Data Sheet.

MSDS.pdf' "Spectrus CT1300 Product Label Fact Sheet. pdft 4/1 4/2009 Raw Water Treatment Plan Rationale I1I

TNO020168 RATIONALE for Raw Water Chemical Additives WBN Spectrus NX1 104 (Dimethylbenzylammonium chloride and Dodecylguanidine Hydrochloride)

Spectrus NX1 104 is a non-oxidizing biocide which contains quaternary ammonium compounds (quats) as the active ingredients for mollusk control. This product was approved by the Division with the condition that the concentration of active ingredients not exceed 0.031 mg/L in the plant effluents at OSN 101 and OSN 113.

To ensure adherence to NPDES permit limits, WBN Will show by calculation that the required concentrations are being met for each application and document the minimum flow in the river during the treatment period.,i:,.-

Should WBN need to target concentrations in the plant that have the potential to threaten water quality, WBN will detoxify the effluent as needed by treatment with bentonite clay to ensure discharge limitations are met. The effectivenessof detoxification will be confirmed with twice daily sampling for the active ingredient in the effluent during the treatment period.

Document Summary Material Safety Data Sheet.

"SPECTRUSNX1104 MSDS.pdf' Bentonite Clay (Sodium Silicate)

Bentonite clay is the industry standard for detoxifying effluents by absorbing and binding the toxic constituents in SPECTRUS CT1300. TVA and manufacturer studies indicate that bentonite clay is very effective at removing the constituents of concern for both of the non-oxidizing biocides proposed in this treatment plan. The primary end product following absorption of the constituents is carbon dioxide from degradation of the complex organic molecules. No toxicity data is available for this product. Treatment of OSN 101 and OSN 113 with sodium bentonite shall be undertaken any time calculations indicate an exceedance of the effluent concentration limits for SPECTRUS CT1300 or Spectrus NX1104 will occur.

Compliance with TSS limitations will be met during use of this product.

Document Summary "MSDS Bentonite Material Safety Data Sheet.

Clay.pdf' 4/14/2009 Raw Water Treatment Plan Rationale 12

TNO020168 RATIONALE for Raw Water Chemical Additives WBN Liquid Bleach (Sodium Hypochlorite)

The bleach solution is 12.5% active NaOCI producing 10.2% available chlorine. WBN proposes to utilize Sodium Hypochlorite for the routine continuous treatment of the plant's ERCW and RCW piping.

Effluents will be dechlorinated should in-plant targets threaten discharge limitations for chlorine. When dechlorinating, confirmatory samples will be collected during each day of treatment and analyzed according to NPDES permit requirements to ensure discharge limitations are met. Chlorine is monitored 5 days per week at OSN 101 and OSN 113 in accordance with NPDES permit requirements to ensure discharge limitations are met.

Document Summary SODIUM Material Safety Data Sheet.

HYPOCHLORITE MSD, Product Bulletin NaOCI Product Bulletin. pdf 4/14/2009 Raw Water Treatment Plan Rationale 13

GE Water & Process Technologies Issue Date: 05-FEB-2009 Material Safety Data Sheet Supercedes: 29-JAN-2009 FLOGARD MS6209 1 Identification Identification of substance or preparation FLOGARD MS6209 Product Application Area Water-based corrosion inhibitor.

Company/Undertaking Identification GE Betz, Inc.

4636 Somerton Road Trevose, PA 19053 T 215 355-3300, F 215 953 5524 Emergency Telephone (800) 877-1940 Prepared by Product Stewardship Group: T 215-355-3300 Prepared on: 05-FEB-2009 2 Hazard(s) identification EMERGENCY OVERVIEW DANGER Corrosive to skin. Corrosive to the eyes. Mists/aerosols cause irritation to the upper respiratory tract.

DOT hazard: Corrosive to skin/steel Odor: Slight; Appearance: Colorless To Yellow, Liquid Fire fighters should wear positive pressure self-contained breathing apparatus(full face-piece type). Proper fire-extinguishing media:

dry chemical/C02/foam or water--slippery condition; use sand/grit.

POTENTIAL HEALTH EFFECTS ACUTE SKIN EFFECTS:

Primary route of exposure; Corrosive to skin.

ACUTE EYE EFFECTS:

Corrosive to the eyes.

ACUTE RESPIRATORY EFFECTS:

Mists/aerosols cause irritation to the upper respiratory tract.

INGESTION EFFECTS:

Substance or Preparation: FLOGARD MS6209 Page 1

May cause severe irritation or burning of mouth, throat, and gastrointestinal tract with severe chest and abdominal pain, nausea, vomiting, diarrhea, lethargy and collapse. Possible death when ingested in very large doses.

TARGET ORGANS:

Prolonged or repeated exposures may cause tissue necrosis.

MEDICAL CONDITIONS AGGRAVATED:

Not known.

SYMPTOMS OF EXPOSURE:

Causes severe irritation, burns or tissue ulceration with subsequent scarring.

3 Composition / information on ingredients Information for specific product ingredients as required by the U.S. OSHA HAZARD COMMUNICATION STANDARD is listed. Refer to additional sections of this MSDS for our assessment of the potential hazards of this formulation.

HAZARDOUS INGREDIENTS:

Cas# Chemical Name Range(w/w%)

13598-37-3 PHOSPHORIC ACID, ZINC SALT (2:1) 40-70 Irritant 7664-38-2 PHOSPHORIC ACID 15-40 Corrosive 4 First-aid measures SKIN CONTACT:

URGENT! Wash thoroughly with soap and water. Remove contaminated clothing. Get immediate medical attention. Thoroughly wash clothing before reuse.

EYE CONTACT:

URGENT! Immediately flush eyes with plenty of low-pressure water for at least 20 minutes while removing contact lenses. Hold eyelids apart. Get immediate medical attention.

INHALATION:

Remove to fresh air. If breathing is difficult, give oxygen. If breathing has stopped, give artificial respiration. Get immediate medical attention.

INGESTION: -

Do not feed anything by mouth to an unconscious or convulsive victim. Do not induce vomiting. Immediately contact physician.

Rinse mouth with plenty of water. Dilute contents of stomach using 4-10 fluid ounces (120-300 mL) of milk or water.

NOTES TO PHYSICIANS:

Material is corrosive. It may not be advisable to induce vomiting.

Possible mucosal damage may contraindicate the use of gastric lavage.

Substance or Preparation: FLOGARD MS6209 Page 2

5 Fire-fighting measures FIRE FIGHTING INSTRUCTIONS:

Fire fighters should wear positive pressure self-contained breathing apparatus (full face-piece type).

EXTINGUISHING MEDIA:

dry chemical/C02/foam or water--slippery condition; use sand/grit.

HAZARDOUS DECOMPOSITION PRODUCTS:

oxides of phosphorus FLASH POINT:

> 200F > 93C P-M(CC)

MISCELLANEOUS:

Corrosive to skin/steel UN 1805;Emergency Response Guide #154 6 Accidental release measures PROTECTION AND SPILL CONTAINMENT:

Ventilate area. Use specified protective equipment. Contain and absorb on absorbent material. Place in waste disposal container.

Flush area with water. Wet area may be slippery. Spread sand/grit.

DISPOSAL INSTRUCTIONS:

Water contaminated with this product may be sent to a sanitary sewer treatment facility,in accordance with any local agreement,a permitted waste treatment facility or discharged under a permit. Product as is - Incinerate or land dispose in an approved landfill.

7 Handling and storage HANDLING:

Acidic. Corrosive(Skin/eyes). Do not mix with alkaline material.

STORAGE:

Keep containers closed when not in use. Preferably stored between 40-10OF (5-38C).

8 Exposure controls / personal protection EXPOSURE LIMITS CHEMICAL NAME PHOSPHORIC ACID, ZINC SALT (2:1)

PEL (OSHA) : NOT DETERMINED TLV (ACGIH): NOT DETERMINED PHOSPHORIC ACID PEL (OSHA) : 1 MG/M3 TLV (ACGIH) : 1 MG/M3 ENGINEERING CONTROLS:

Adequate ventilation to maintain air contaminants below exposure limits.

PERSONAL PROTECTIVE EQUIPMENT:

Use protective equipment in accordance with 29CFR 1910 Subpart I RESPIRATORY PROTECTION:

A RESPIRATORY PROTECTION PROGRAM THAT MEETS OSHA'S 29 CFR Substance or Preparation: FLOGARD MS6209 Page 3

1910.134 AND ANSI Z88.2 REQUIREMENTS MUST BE FOLLOWED WHENEVER WORKPLACE CONDITIONS WARRANT A RESPIRATOR'S USE.

USE AIR PURIFYING RESPIRATORS WITHIN USE LIMITATIONS ASSOCIATED WITH THE EQUIPMENT OR ELSE USE SUPPLIED AIR-RESPIRATORS.

If air-purifying respirator use is appropriate, use any of the following particulate respirators: N95, N99, NI00, R95, R99, R100, P95, P99 or P100.

SKIN PROTECTION:

gauntlet-type rubber, butyl or neoprene gloves, chemical resistant apron -- Wash off after each use. Replace as necessary.

EYE PROTECTION:

splash proof chemical goggles, face shield 9 Physical and chemical properties Specific Grav.(70F,21C) 1.711 Vapor Pressure (mmHG) - 15.0 Freeze Point (F) < -30 Vapor Density (air=l) < 1.00 Freeze Point (C) < -34 Viscosity(cps 70F,21C) 70 % Solubility (water) 100.0 Odor Slight Appearance Colorless To Yellow Physical State Liquid Flash Point P-M(CC) > 200F > 93C pH As Is (approx.) < 1.0 Evaporation Rate (Ether=l) < 1.00 Percent VOC: 0.0 NA = not applicable ND = not determined 10 Stability and reactivity CHEMICAL STABILITY:

Stable under normal storage conditions.

POSSIBILITY OF HAZARDOUS REACTIONS:

Contact with strong bases may cause a violent reaction releasing heat.

INCOMPATIBILITIES:

May react with bases or strong oxidizers.

DECOMPOSITION PRODUCTS:

oxides of phosphorus 11 Toxicological information Oral LD50 RAT: >2,500 mg/kg NOTE - Estimated value Dermal LD50 RABBIT: >5,000 mg/kg NOTE - Estimated value Inhalation LC50 RAT: >20 mg/L/hr NOTE - Estimated value Skin Irritation Score RABBIT: CORROSIVE NOTE - EPA Category I Eye Irritation Score RABBIT: CORROSIVE NOTE - Estimated value Substance or Preparation: FLOGARD MS6209 Page 4

12 Ecological information AQUATIC TOXICOLOGY Ceriodaphnia 48 Hour Static Renewal Bioassay LC50= 1.5; No Effect Level= .63 mg/L Ceriodaphnia 7 Day Static Renewal Bioassay IC25 = 1.9 mg/L Daphnia magna 48 Hour Static Renewal Bioassay LC50= 12; No Effect Level= 1.5 mg/L Fathead Minnow 7 Day Static Renewal Bioassay IC25 = 5 mg/L Fathead Minnow 96 Hour Static Renewal Bioassay LC50= 14; No Effect Level= 2.5 mg/L Rainbow Trout 96 Hour Static Renewal Bioassay LC50= 4.9; No Effect Level= 1.6 mg/L BIODEGRADATION Product contains only inorganics that are not subject to typical biological degradation. Assimilation by microbes may occur in waste treatment or the environment.

13 Disposal considerations If this undiluted product is discarded as a waste, the US RCRA hazardous waste identification number is :

D002=Corrosive (pH,steel); D006=Cadmium; D008=Lead.

Please be advised; however, that state and local requirements for waste disposal may be more restrictive or otherwise different from federal regulations. Consult state and local regulations regarding the proper disposal of this material.

14 Transport information DOT HAZARD: Corrosive to skin/steel PROPER SHIPPING NAME: PHOSPHORIC ACID SOLUTION 8, UN 1805, PG III, RQ DOT EMERGENCY RESPONSE GUIDE #: 154 Note: Some containers may be DOT exempt, please check BOL for exact container classification 15 Regulatory information TSCA:

All components of this product are included on or are in compliance with the U.S. TSCA regulations.

CERCLA AND/OR SARA REPORTABLE QUANTITY (RQ):

1,962 gallons due to PHOSPHORIC ACID; FOOD AND DRUG ADMINISTRATION:

21 CFR 176.170 (components of paper and paperboard in contact with aqueous and fatty foods)

NSF Registered and/or meets USDA (according to 1998 Guidelines):

Registration number: 140901 Substance or Preparation: FLOGARD MS6209 Page 5

Category Code(s):

SARA SECTION 312 HAZARD CLASS:

Immediate(acute);Delayed(Chronic)

SARA SECTION 302 CHEMICALS:

No regulated constituent present at OSHA thresholds SARA SECTION 313 CHEMICALS:

CAS# CHEMICAL NAME RANGE 13598-37-3 PHOSPHORIC ACID, ZINC SALT (2:1) 41.0-50.0%

CALIFORNIA REGULATORY INFORMAI CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT (PROPOSITION 65):

This product contains one or more ingredients at trace levels known to the state of California to cause cancer and reproductive toxicity.

MICHIGAN REGULATORY INFORMATION No regulated constituent present at OSHA thresholds 16 Other information HMIS VII CODE TRANSLATION Health 3 Serious Hazard Fire 0 Minimal Hazard Reactivity 0 Minimal Hazard Special CORR DOT corrosive (1) Protective Equipment D GogglesFace Shield,Gloves,Apron (1) refer to section 8 of MSDS for additional protective equipment recommendations.

CHANGE LOG EFFECTIVE DATE REVISIONS TO SECTION: SUPERCEDES MSDS status: 29-JAN-1997 ** NEW **

05-JAN-1999 10 29-JAN-1997 25-JUN-1999 11 05-JAN-1999 23-AUG-1999 12 25-JUN-1999 13-JUL-2000 15 23-AUG-1999 03-JAN-2001 15 13-JUL-2000 01-MAY-2001 12 03-JAN-2001 01-MAY-2007 4,5,8,10, 15 01-MAY-2001 29-JAN-2008 4,8,13 01-MAY-2007 29-JAN-2009 3,4,8,10, 15 29-JAN-2008 05-FEB-2009 12 29-JAN-2009 Substance or Preparation: FLOGARD MS6209 Page 6

VONB16INN Water & Process ec-nobqies Fioro"ard* MS6209 Inhibitor Corrosion and Deposit Control Agent 0 Mild steel corrosion inhibitor Packaging information Description and Use FloGard MS6209 is a liquid blend available in a vari-FloGard MS6209 is a liquid phosphate/zinc product ety of containers and delivery methods. Contact for inhibiting corrosion in once-through and recircu- your GE representative for details.

lating cooling and auxiliary water systems.

Storage Once-through Systems: At typical use levels, the phosphate in FloGard MS6209 combines with cal- Protect from freezing. If this product is frozen during cium and/or zinc to form a barrier film at the ca- shipment or storage, slight mixing may be required thodic site of the corrosion cell. This is the primary to ensure homogeneity.

mode of the corrosion protection.

Safety Precautions Treatment and Feeding Requirement A Material Safety Data Sheet containing detailed Dosage: Proper treatment levels for FloGard information about this product is available upon MS6209 depend on many factors, such as.the cal- request.

cium concentration, pH of the circulating water and conditions particular to a given installation. The typical dosage range is 3 to 15 ppm for once-through systems and for specific application.

Dilution: FloGard MS6209 may be fed directly from the shipping container or diluted to any convenient strength. For best results, this product should be fed continuously.

Feed Equipment: Tanks, pumps piping and valves may be made of mild steel or most common plas-tics.

Monitoring: A photometric procedure can be used to monitor the phosphate level in the treated water.

General Properties Physical properties of FloGard MS6209 are shown on the Material Safety Data Sheet, a copy of which is available upon request.

Visit us online at www.gewater.com Global Headquarters North America Europe/Middle East/Africa Asia/Pacific 02004, General Electric Company. Trevose. PA Minnetonka, MN Heverlee. Belgium Shanghai, China All rights reserved. 215-355-3300 952-933-2277 32-16-40-20-00 86-21-5298-4573 Products mentioned ore trademarks of the General Electric Company and may be registered in one or more countries. CPFC73EN 0410

GE Water & Process Technologies Issue Date: 05-FEB-2009 Material Safety Data Sheet Supercedes: 02-OCT-2008 DEPOSITROL PY5200 1 Identification Identification of substance or preparation DEPOSITROL PY5200 Product Application Area Water-based deposit control agent.

Company/Undertaking Identification GE Betz, Inc.

4636 Somerton Road Trevose, PA 19053 T 215 355-3300, F 215 953 5524 Emergency Telephone (800) 877-1940 Prepared by Product Stewardship Group: T 215-355-3300 Prepared on: 05-FEB-2009 2 Hazard(s) identification EMERGENCY OVERVIEW CAUTION May cause slight irritation to the skin. May cause slight irritation to the eyes. Mists/aerosols may cause irritation to upper respiratory tract.

DOT hazard is not applicable Odor: Slight; Appearance: Yellow, Liquid Fire fighters should wear positive pressure self-contained breathing apparatus(full face-piece type). Proper fire-extinguishing media:

dry chemical, carbon dioxide, foam or water POTENTIAL HEALTH EFFECTS ACUTE SKIN EFFECTS:

Primary route of exposure; May cause slight irritation to the skin.

ACUTE EYE EFFECTS:

May cause slight irritation to the eyes.

ACUTE RESPIRATORY EFFECTS:

Mists/aerosols may cause irritation to upper respiratory tract.

Substance or Preparation: DEPOSITROL PY5200 Page 1

INGESTION EFFECTS:

May cause slight gastrointestinal irritation.

TARGET ORGANS:

No evidence of potential chronic effects.

MEDICAL CONDITIONS AGGRAVATED:

Not known.

SYMPTOMS OF EXPOSURE:

May cause redness or itching of skin.

3 Composition /information on ingredients Information for specific product ingredients as required by the U.S. OSHA HAZARD COMMUNICATION STANDARD is listed. Refer to additional sections of this MSDS for our assessment of the potential hazards of this formulation.

HAZARDOUS INGRED IENTS:

This product is not hazardous as defined by OSHA regulations.

No component is considered to be a carcinogen by the National Toxicology Program, the International Agency for Research on Cancer, or the Occupational Safety and Health Administration at OSHA thresholds for carcinogens.

4 First-aid measures SKIN CONTACT:

Wash thoroughly with soap and water. Remove contaminated clothing.

Get medical attention if irritation develops or persists.

EYE CONTACT:

Remove contact lenses. Hold eyelids apart. Immediately flush eyes with plenty of low-pressure water for at least 15 minutes. Get medical attention if irritation persists after flushing.

INHALATION:

If nasal, throat or lung irritation develops - remove to fresh air and get medical attention.

INGESTION:

Do not feed anything by mouth to an unconscious or convulsive victim. Do not induce vomiting. Immediately contact physician.

Dilute contents of stomach using 2-8 fluid ounces (60-240 mL) of milk or water.

NOTES TO PHYSICIANS:

No special instructions 5 Fire-fighting measures Substance or Preparation: DEPOSITROL PY5200 Pg Page 2

FIRE FIGHTING INSTRUCTIONS:

Fire fighters should wear positive pressure self-contained breathing apparatus (full face-piece type).

EXTINGUISHING MEDIA:

dry chemical, carbon dioxide, foam or water HAZARDOUS DECOMPOSITION PRODUCTS:

oxides of carbon and sulfur FLASH POINT:

> 21OF > 99C P-M(CC) 6 Accidental release measures PROTECTION AND SPILL CONTAINMENT:

Ventilate area. Use specified protective equipment. Contain and absorb on absorbent material. Place in waste disposal container.

Flush area with water. Wet area may be slippery. Spread sand/grit.

DISPOSAL INSTRUCTIONS:

Water contaminated with this product may be sent to a sanitary sewer treatment facility, in accordance with any local agreement,a permitted waste treatment facility or discharged under a permit. Product as is - Incinerate or land dispose in an approved landfill.

7 Handling and storage HANDLING:

Normal chemical handling.

STORAGE:

Keep containers closed when not in use. Protect from freezing. If frozen, thaw and mix completely prior to use. Shelf life 360 days.

8 Exposure controls / personal protection EXPOSURE LIMITS This product is not hazardous as defined by OSHA regulations.

ENGINEERING CONTROLS:

adequate ventilation PERSONAL PROTECTIVE EQUIPMENT:

Use protective equipment in accordance with 29CFR 1910 Subpart I RESPIRATORY PROTECTION:

A RESPIRATORY PROTECTION PROGRAM THAT MEETS OSHA'S 29 CFR 1910.134 AND ANSI Z88.2 REQUIREMENTS MUST BE FOLLOWED WHENEVER WORKPLACE CONDITIONS WARRANT A RESPIRATOR'S USE.

USE AIR PURIFYING RESPIRATORS WITHIN USE LIMITATIONS ASSOCIATED WITH THE EQUIPMENT OR ELSE USE SUPPLIED AIR-RESPIRATORS.

If air-purifying respirator use is appropriate, use any of the following particulate respirators: N95, N99, N100, R95, R99, R100, P95, P99 or P100.

SKIN PROTECTION:

rubber, butyl, viton or neoprene gloves -- Wash off after each use. Replace as necessary.

EYE PROTECTION:

splash proof chemical goggles Substance or Preparation: DEPOSITROL PY5200 Page 3

9 Physical and chemical properties Specific Grav.(70F,21C) 1.169 Vapor Pressure (mmHG) - 18.0 Freeze Point (F) 25 Vapor Density (air=l) < 1.00 Freeze Point (C) -4 Viscosity(cps 70F,21C) 42 % Solubility (water) 100.0 Odor Slight Appearance Yellow Physical State Liquid Flash Point P-M(CC) > 210F > 98C pH As Is (approx.) 5.2 Evaporation Rate (Ether=l) < 1.00 Percent VOC: 0.0 NA = not applicable ND = not determined 10 Stability and reactivity CHEMICAL STABILITY:

Stable under normal storage conditions.

POSSIBILITY OF HAZARDOUS REACTIONS:

INCOMPATIBILITIES:

May react with strong oxidizers.

DECOMPOSITION PRODUCTS:

oxides of carbon and sulfur 11 Toxicological information Oral LD50 RAT: >5,000 mg/kg Dermal LD50 RABBIT: >2,000 mg/kg Inhalation LC50 RAT: >5 mg/L/4hr Skin Irritation Score RABBIT: 1 Eye Irritation Score RABBIT: 1.67 12 Ecological information AQUATIC TOXICOLOGY Ceriodaphnia 48 Hour Static Renewal Bioassay LC50= 1265 mg/L Ceriodaphnia 7 Day Static Renewal Bioassay IC25 = 538 mg/L Daphnia magna 48 Hour Static Renewal Bioassay (pH adjusted)

LC50= 1767; No Effect Level= 1250 mg/L Fathead Minnow 7 Day Static Renewal Bioassay LC50 Greater Than= 2000; IC25 = 2000 mg/L Fathead Minnow 96 Hour Static Renewal Bioassay (pH adjusted)

LC50= 1960; No Effect Level= 313 mg/L Mysid Shrimp 48 Hour Static Renewal Bioassay (pH adjusted) 10% Mortality= 16000; 0% Mortality= 8000 mg/L Sheepshead Minnow 96 Hour Static Renewal Bioassay (pH adjusted) 0% Mortality= 16000 mg/L BIODEGRADATION Substance or Preparation: DEPOSITROL PY5200 Page 4

BOD-28 (mg/g): 32 BOD-5 (mg/g) : 10 COD (mg/g) : 368 TOC (mg/g): 144 13 Disposal considerations If this undiluted product is discarded as a waste, the US RCRA hazardous waste identification number is Not applicable.

Please be advised; however, that state and local requirements for waste disposal may be more restrictive or otherwise different from federal regulations. Consult state and local regulations regarding the proper disposal of this material.

14 Transport information DOT HAZARD: Not Applicable PROPER SHIPPING NAME:

DOT EMERGENCY RESPONSE GUIDE #: Not applicable Note: Some containers may be DOT exempt, please check BOL for exact container classification 15 Regulatory information TSCA:

All components of this product are included on or are in compliance with the U.S. TSCA regulations.

CERCLA AND/OR SARA REPORTABLE QUANTITY (RQ):

No regulated constituent present at OSHA thresholds FOOD AND DRUG ADMINISTRATION:

FDA APPROVED FOR MILL SUPPLY WATER NSF Registered and/or meets USDA (according to 1998 Guidelines):

Registration number: Not Registered This product contains ingredients that have been determined as safe for use in boilers, steamlines and cooling systems where there is no food contact. (G7)

SARA SECTION 312 HAZARD CLASS:

Product is non-hazardous under Section 311/312 SARA SECTION 302 CHEMICALS:

No regulated constituent present at OSHA thresholds SARA SECTION 313 CHEMICALS:

No regulated constituent present at OSHA thresholds CALIFORNIA REGULATORY INFORMATION CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT (PROPOSITION 65):

No regulated constituents present MICHIGAN REGULATORY INFORMATION No regulated constituent present at OSHA thresholds 16 Other information Substance or Preparation: DEPOSITROL PY5200 Page 5

HMIS vii CODE TRANSLATION Health 1 Slight Hazard Fire 1 Slight Hazard Reactivity 0 Minimal Hazard Special NONE No special Hazard (1) Protective Equipment B Goggles,Gloves (1) refer to section 8 of MSDS for additional protective equipment recommendations.

CHANGE LOG EFFECTIVE DATE REVISIONS TO SECTION: SUPERCEDES MSDS status: 29-JAN-1997 ** NEW **

10-SEP-1997 3,8,10,11, 16;EDIT:4 29-JAN-1997 06-FEB-1998 12 10-SEP-1997 18-JAN-2001 15 06-FEB-1998 31-AUG-2001 15 18-JAN-2001 30-OCT-2001 4 31-AUG-2001 17-APR-2006 7,8 30-OCT-2001 02-OCT-2008 4,5,8,10 17-APR-2006 05-FEB-2009 12 02-OCT-2008 Substance or Preparation: DEPOSITROL PY5200 Page 6

a Water & Process Technologies CoolsWTerPolTmr DPY Cooling Water Polymeric Dispersant

Patented calcium phosphate scale inhibitor Dianodic Plus treatment can be maintained at a high enough level to promote the formation of a passivat-

Advanced polymer technology ing film on mild steel, thereby attaining the desired

Permits proper phosphate concentration for cor- corrosion protection.

rosion inhibition of mild steel

Provides excellent dispersion of suspended solids Treatment and Feeding Requirement Dosage - The proper treatment levels of DeposiTrol Description and Use PY5200 depend on the specific needs of your system.

The product should be fed in accordance with control DeposiTrolTM PY5200 is a unique deposit control agent procedures that GE establishes for a particular appli-for use in cooling w/ater systems. It incorporates a polymeric agent, GE Infrastructure Water & Process cation. For consistent protection, continuous feed is Technologies HPS I, a third generation cooling water recommended.

polymer. Feed point - DeposiTrol PY5200 should be fed to a point in the system where it will be rapidly mixed with Typical Applications the bulk cooling water.

Duo Dilution - DeposiTrol PY5200 can be diluted with good quality water to convenient feeding strengths.

'0 4_-- Feed Equipment - Tanks, pumps, piping, and valves should be made of stainless steel, polyethylene, poly-20-propylene, PVC, Hypalon, or Teflon. Mild steel should not be used.

0o.

-IPSI HPS I PA Physical Properties 10 ppm (ma/) 5 ppM I(miL) 10 ppm ýmg0L fkrltprterapdr Ooaq Physical properties of DeposiTrol PY5200 are shown on the Material Safety Data Sheet, a copy of which is Figure 1: Clay Dispersion available on request.

DeposiTrol PY5200 controls calcium phosphate forma- Packaging information tion and general deposition such as silt (see Figure 1),

DeposiTrol PY5200 is a liquid blend available in a wide iron, and suspended solids. It is particularly effective variety of customized containers and delivery meth-in the presence of certain contaminants, such as re-sults from cationic carryover from clarifiers, or in the ods. Contact your GE representative for details.

case where boiler blowdown is added to the cooling system for discharge or water conservation purposes.

Safety Precautions DeposiTrol PY5200 is designed to be applied as one A Material Safety Data Sheet containing detailed in-formation about this product is available upon re-component of a Dianodic PIusTM program. With De-posiTrol PY5200, phosphate concentrations in a quest.

Visit us online at www.gewater.com Global Headquarters North America Europe/Middle East/Africa Asia/Pacific

©2004, General Electric Company. Trevose, PA Minnetonko, MN Heverlee, Belgium Shanghai, China All rights reserved. 215-355-3300 952-933-2277 32-16-40-20-00 86-21-5298-4573 Products mentioned are trademarks of the General Electric Company and may be registered in one or more countries. PFC756EN0410

Wauter &Po~ e~n~pk Issue Date: 05-FEB-2009 Material Safety Data Sheet Supercedes: 03-MAY-2000 INHIBITOR AZ8100 1 Identification Identification of substance or preparation INHIBITOR AZ8100 Product Application Area Water-based corrosion inhibitor.

Company/Undertaking Identification GE Betz, Inc.

4636 Somerton Road Trevose, PA 19053 T 215 355-3300, F 215 953 5524 Emergency Telephone (800) 877-1940 Prepared by Product Stewardship Group: T 215-355-3300 Prepared on: 05-FEB-2009 2 Hazard(s) identification EMERGENCY OVERVIEW DANGER Corrosive to skin. Corrosive to the eyes. Mists/aerosols cause irritation to the upper respiratory tract.

DOT hazard: Corrosive to skin Odor: Mild; Appearance: Yellow To Brown, Liquid Fire fighters should wearpositive pressure self-contained breathing apparatus(full face-piece type). Proper fire-extinguishing media:

dry chemical, carbon dioxide, foam or water POTENTIAL HEALTH EFFECTS ACUTE SKIN EFFECTS:

Primary route of exposure; Corrosive to skin.

ACUTE EYE EFFECTS:

Corrosive to the eyes.

ACUTE RESPIRATORY EFFECTS:

Mists/aerosols cause irritation to the upper respiratory tract.

INGESTION EFFECTS:

Substance or Preparation: INHIBITOR AZ8100 Page 1

May cause severe irritation o;r burning of the gastrointestin.a!

tract TARGET ORGANS:

Prolonged or repeated exposures may cause tissue necrosis.

MEDICAL CONDITIONS AGGRAVATED:

Not known.

SYMPTOMS OF EXPOSURE:

Causes redness or itching of skin, possibly leading to burns (dependent on the length of exposure).

3 Composition / information on ingredients Information for specific product ingredients as required by the U.S. OSHA HAZARD COMMUNICATION STANDARD is listed. Refer to additional sections of this MSDS for our assessment of the potential hazards of this formulation.

HAZARDOUS INGREDIENTS:

Cas# Chemical Name Ranqe(w/w%)

02 646_ 5-5 7 ENZOTRIAZOLE,METHYL, SODIUM SALT (SODIUM 4(-70 TOLYLTRIAZOLE), (TIA)

Corrosive (eyes and skin); toxic (by ingestion) 4 First-aid measures SKIN CONTACT:

Remove clothing. Wash area with large amounts of soap solution or water for 15 min. Immediately contact physician.

EYE CONTACT:

Remove contact lenses. Hold eyelids apart. Immediately flush eyes with plenty of low-pressure water for at least 15 minutes. Get immediate medical attention.

INHALATION:

Remove to fresh air. Apply necessary first aid treatment.

Immediately contact a physician.

INGESTION:

Do not feed anything by mouth to an unconscious or convulsive victim. Do not induce vomiting. Immediately contact physician.

Dilute contents of stomach using 2-8 fluid ounces (60-240 mL) of milk or water.

NOTES TO PHYSICIANS:

No special instructions 5 Fire-fighting measures FIRE FIGHTING INSTRUCTIONS:

Fire fighters should wear positive pressure self-contained breathing apparatus (full face-piece type).

EXTINGUISHING MEDIA:

dry chemical, carbon dioxide, foam or water HAZARDOUS DECOMPOSITION PRODUCTS:

Substance or Preparation: INHIBITOR AZ81 00 Page 2

element-al oxcides FLASH POINT:

> 200F > 93C SETA(CC)

MISCELLANEOUS:

Corrosive to skin UN 1719;Emergency Response Cuide #154 6 Accidental release measures PROTECTION AND SPILL CONTAINMENT:

Ventilate area. Use specified protective equipment. Contain and absorb on absorbent material. Place jin waste disposal container.

Flush area with water. Wet area may be slippery. Spread sand/grit.

DISPOSAL INSTRUCTIONS:

Water contaminated with this product- may be sent to a sanitary sewer treatment facility,in accordance with any local agreement,a permitted waste treatment facility or discharged under a permit. Product as is - Incinerate or land dispose in an approved landfill.

7 Handling and storage HANDLING:

Alkaline. Corrosive(Skin/eyes). Do not mix with acidic material.

STORAGE:

Keep containers closed when not in use. Store in cool ventilated location. Store away from oxidizers.

8 Exposure controls / personal protection EXPOSURE LIMITS CHEMICAL NAME BENZOTRIAZOLE,METHYL, SODIUM SALT (SODIUM TOLYLTRIAZOLE), (TTA)

PEL (OSHA): NOT DETERMINED TLV (ACGIH) : NOT DETERMINED ENGINEERING CONTROLS:

adequate ventilation PERSONAL PROTECTIVE EQUIPMENT:

Use protective equipment in accordance with 29CFR 1910 Subpart I RESPIRATORY PROTECTION:

A RESPIRATORY PROTECTION PROGRAM THAT MEETS OSHA'S 29 CFR 1910.134 AND ANSI Z88.2 REQUIREMENTS MUST BE FOLLOWED WHENEVER WORKPLACE CONDITIONS WARRANT A RESPIRATOR'S USE.

USE AIR PURIFYING RESPIRATORS WITHIN USE LIMITATIONS ASSOCIATED WITH THE EQUIPMENT OR ELSE USE SUPPLIED AIR-RESPIRATORS.

If air-purifying respirator use is appropriate, use any of the following particulate respirators: N95, N99, N100, R95, R99, R100, P95, P99 or P100.

SKIN PROTECTION:

gauntlet-type neoprene gloves, chemical resistant apron--

Wash off after each use. Replace as necessary.

EYE PROTECTION:

splash proof chemical goggles, face shield Substance or Preparation: INHIBITOR AZ8100 Page 3

9 Physical and chemical properties Specific Grav.(70F,21C) 1.215 Vapor Pressure (mmHC) 18.0 Freeze Point (F) -25 Vapor Density (air=l) < 1.00 Freeze Point (C) -32.

Viscosity(cps 70F,21C) 190 9 Solu bility (water) 100.0 Odor Mild Appearance Yellow To Brown Physical State Liquid Flash Point SETA(CC) > 200F > 93C pH 10% Sol. (approx.) - 11.7 Evaporation Rate (Ether=l) < 1.00 Percent VOC: 0.0 NA = not applicable ND = not determined 10 Stability and reactivity CHEMICAL STABILITY:

Stable under normal storage conditons POSSIBILITY OF HAZARDOUS REACTIONS:

INCOMPATIBILITIES:

May react with acids.

DECOMPOSITION PRODUCTS:

elemental oxides 11 Toxicological information Oral LD50 RAT: 1,150 mg/kg Dermal LD50 RABBIT: >2,000 mg/kg NOTE - Estimated value 12 Ecological information AQUATIC TOXICOLOGY Bluegill Sunfish 96 Hour Static Acute Bioassay LC50= 109.3; No Effect Level= 42 mg/L Ceriodaphnia 48 Hour Static Renewal Bioassay LC50= 147; No Effect Level= 37 mg/L Ceriodaphnia 7 Day Static Renewal Bioassay IC25 = 20 mg/L Daphnia magna 48 Hour Static Renewal Bioassay (pH adjusted)

LC50= 243; No Effect Level= 75 mg/L Fithead Minnow 7 Day Static Renewal Bioassay IC25 = 56 mg/L Fathead Minnow 96 Hour Static Renewal Bioassay (pH adjusted)

LC50= 105; No Effect Level= 75 mg/L Mysid Shrimp 48 Hour Static Acute Bioassay LC50= 166; No Effect Level= 10 mg/L Rainbow Trout 96 Hour Static Renewal Bioassay LC50= 34; No Effect Level= 15 mg/L Sheepshead Minnow 48 Hour Static Acute Bioassay Substance or Preparation: INHIBITOR AZ8100 Page 4

LOS0= 475; No Effect Level 370O 7 mg/7L BIODEGRADATION BOD-28 (mg/g): 22 BOD-5 (mg/g): 4 COD (mg/g) : 810 TOC (mg/g) : 280 13 Disposal considerations If this undiluted product is discarded as a waste, the US RCPA hazardous waste identification number is Nct applicable.

Please be advised; however, that state and local requirements for waste disposal may be mcre restrictive or otherwise different from federal regulations. Consult state and local regulaticns regarding the proper disposal of this material.

14 Transport information DOT Hi-AZARD: Corrosive to skin PROPER SHIPPING NAME: CAUSTIC ALKALI LIQUIDS, N.O.S. ISODIUM TOLYLTRIAZOLE) 8, UN 1719, PG II DOT EMERGENCY RESPONSE GUIDE #: 154 Note: Some containers may be DOT exempt, please check BOL for exact container classification 15 Regulatory information TSCA:

All components of this product are included on or are in compliance with the U.S. TSCA regulations.

CERCLA AND/OR SARA REPORTABLE QUANTITY (RQ):

No regulated constituent present at OSHA thresholds NSF Registered and/or meets USDA (according to 1998 Guidelines):

Registration number: Not Registered SARA SECTION 312 HAZARD CLASS:

Immediate(acute) ;Delayed(Chronic)

SARA SECTION 302 CHEMICALS:

No regulated constituent present at OSHA thresholds SARA SECTION 313 CHEMICALS:

No regulated constituent present at OSHA thresholds CALIFORNIA REGULATORY INFORMATION CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT (PROPOSITION 65):

No regulated constituents present MICHIGAN REGULATORY INFORMATION No regulated constituent present at OSHA thresholds 16 Other information Substance or Preparation: INHIBITOR AZ8100 Page 5

HMIS vii CODE TRANSLATION Health 3 Serious Hazard Fire I Slight Hazard Reactivity 0 Minimal Hazard Special CORR DOT corrosive (1) Protective Equipment D Goggles,Face Shield,Gloves,Apron (1) refer to section 8 of MSDS for additional protective equipment recommendations.

CHANGE LOG EFFECTIVE DATE REVISIONS TO SECTION: SUPERCC DES hSDS status: 28-JAN-1997 NEW *\

19-FEB-1997 12 28-JAN-1997 03-OCT-1997 8 19-FEB-1997 29-MAY-1998 12 03-OCT-1997 08-FEB-1999 3,5,14 29-MAY-1998 15-JUN-1999 12 08-FES-1999 30-AUG-1999 4;EDIT:9 15-7DN-:Y 999 03-MAY-2000 12 05-FEB-2009 12;EDIT:Rebranding 03 -MAY- 2000]

Substance or Preparation: INHIBITOR AZ81 00 Page 6

MM-Water & Process TechroiolOgies Cnhibitor AZ8100o Copper Corrosion Inhibitor

" Inhibits corrosion of copper alloys Treatment and Feeding Requirement

" Reduces tube failures The normal treatment level for Inhibitor AZ8100 is 4-

Extends condenser service life 30 ppm(mg/L). The amount required will depend on

Minimizes mild steel corrosion caused by galvanic many factors, such as operating characteristics of the reaction system and severity of the problem. Therefore, this product should be used in accordance with control parameters GE establishes for a specific application.

Description and Use Inhibitor AZ8100 should be fed to a point in the cool-Inhibitor AZ8100 is a specially-formulated corrosion ing system where turbulence and flow patterns will inhibitor which establishes a protective film on copper ensure adequate mixing of the product with the cool-alloy condensers. Inhibitor AZ8100 effectively inhibits ing water. In recirculating cooling systems the product the corrosion of copper alloy surfaces. Indirectly, it should be fed continuously to maintain constant re-also reduces the corrosion of steel surfaces when the siduals in the cooling water. Intermittent product feed corrosion is the result of a galvanic reaction between is applicable in certain cooling systems.

the steel surface and the products of copper corrosion which have been deposited on the steel. Figure 1 Inhibitor AZ8100 may be fed directly from the ship-shows the reduction in corrosion rate for both admi- ping container or diluted with water to any convenient ralty brass and mild steel in a West Coast power plant feeding strength.

through use of Inhibitor AZ8100.

Mild steel tanks, pumps, and piping are satisfactory 3 for use with Inhibitor AZ8100.

0.

E General Properties Physical properties of Inhibitor AZ8100 are shown on 2 the Material Safety Data Sheet, a copy of which is available on request.

C U Packaging Information 1

Inhibitor AZ8100 is available in a variety of containers and delivery methods. Contact your GE sales repre-0 1 2 3 4 5 6 sentative for details.

Time, Months since Start of Treatment Safety Precautions Figure 1: Effect of Inhibitor AZ8100 on the corrosion rates of admiralty brass and of mild steel. (The latter is caused by A Material Safety Data Sheet containing detailed in-galvanic reaction between admiralty corrosion products and the mild steel surface.) formation about this product is available upon re-quest.

Visit us online at www.gewater.com Global Headquarters Americas Europe/Middle East/Africa Asia/Pacific

©2004. General Electric Company. Trevose, PA Minnetonka. MN Heverlee. Belgium Shanghai, China All rights reserved. 215-355-3300 952-933-2277 32-16-40-20-00 86-21-5298-4573 Products mentioned ore trademarks of the General Electric Componr and may be registered in one or more countries. CPFC58EN 0410

GE Water & Process Technologies Issue Date: 05-FEB-2009 Material Safety Data Sheet Supercedes: 31 -OCT-2008 SPECTRUS BD1 500 1 Identification Identification of substance or preparation SPECTRUS BD1500 Product Application Area Water-based deposit control agent.

Company/Undertaking Identification GE Betz, Inc.

4636 Somerton Road Trevose, PA 19053 T 215 355-3300, F 215 953 5524 Emergency Telephone (800) 877-1940 Prepared by Product Stewardship Group: T 215-355-3300 Prepared on: 05-FEB-2009 2 Hazard(s) identification EMERGENCY OVERVIEW CAUTION May cause slight irritation to the skin. May cause moderate irritation to the eyes. Mists/aerosols may cause irritation to upper respiratory tract.

DOT hazard is not applicable Odor: Slight; Appearance: Colorless, Liquid Fire fighters should wear positive pressure self-contained breathing apparatus(full face-piece type). Proper fire-extinguishing media:

dry chemical, carbon dioxide, foam or water POTENTIAL HEALTH EFFECTS ACUTE SKIN EFFECTS:

Primary route of exposure; May cause slight irritation to the skin.

ACUTE EYE EFFECTS:

May cause moderate irritation to the eyes.

ACUTE RESPIRATORY EFFECTS:

Mists/aerosols may cause irritation to upper respiratory. tract.

Substance or Preparation: SPECTRUS BD1 500 Page 1

INGESTION EFFECTS:

May cause slight gastrointestinal irritation.

TARGET ORGANS:

No evidence of potential chronic effects.

MEDICAL CONDITIONS AGGRAVATED:

Not known.

SYMPTOMS OF EXPOSURE:

May cause redness or itching of skin.

3 Composition / information on ingredients Information for specific product ingredients as required by the U.S. OSHA HAZARD COMMUNICATION STANDARD is listed. Refer to additional sections of this MSDS for our assessment of the potential hazards of this formulation.

HAZARDOUS INGREDIENTS:

This product is not hazardous as defined by OSHA regulations.

No component is considered to be a carcinogen by the National Toxicology Program, the International Agency for Research on Cancer, or the Occupational Safety and Health Administration at OSH-A thresholds for carcinogens.

4 First-aid measures SKIN CONTACT:

Wash thoroughly with soap and water. Remove contaminated clothing.

Get medical attention if irritation develops or persists.

EYE CONTACT:

Remove contact lenses. Hold eyelids apart. Immediately flush eyes with plenty of low-pressure water for at least 15 minutes. Get immediate medical attention.

INHALATION:

If nasal, throat or lung irritation develops - remove to fresh air and get medical attention.

INGESTION:

Do not feed anything by mouth to an unconscious or convulsive victim. Do not induce vomiting. Immediately contact physician.

Dilute contents of stomach using 2-8 fluid ounces (60-240 mL) of milk or water.

NOTES TO PHYSICIANS:

No special instructions 5 Fire-fighting measures Substance or Preparation: SPECTRUS BD1 500 Pg Page 2

FIRE FIGHTING INSTRUCTIONS:

Fire fighters should wear positive pressure self-contained breathing apparatus (full face-piece type).

EXTINGUISHING MEDIA:

dry chemical, carbon dioxide, foam or water HAZARDOUS DECOMPOSITION PRODUCTS:

oxides of carbon FLASH POINT:

> 200F > 93C SETA(CC) 6 Accidental release measures PROTECTION AND SPILL CONTAINMENT:

Ventilate area. Use specified protective equipment. Contain and absorb on absorbent material. Place in waste disposal container.

Flush area with water. Wet area may be slippery. Spread sand/grit.

DISPOSAL INSTRUCTIONS:

Water contaminated with this product may be sent to a sanitary sewer treatment facility, in accordance with any local agreement,a permitted waste treatment facility or discharged under a permit. Product as is - Incinerate or land dispose in an approved landfill.

7 Handling and storage HANDLING:

Alkaline. Do not mix with acidic material.

STORAGE:

Keep containers closed when not in use. Reasonable and safe chemical storage.

8 Exposure controls / personal protection EXPOSURE LIMITS This product is not hazardous as defined by OSHA regulations.

ENGINEERING CONTROLS:

adequate ventilation PERSONAL PROTECTIVE EQUIPMENT:

Use protective equipment in accordance with 29CFR 1910 Subpart I RESPIRATORY PROTECTION:

A RESPIRATORY PROTECTION PROGRAM THAT MEETS OSHA'S 29 CFR 1910.134 AND ANSI Z88.2 REQUIREMENTS MUST BE FOLLOWED WHENEVER WORKPLACE CONDITIONS WARRANT A RESPIRATOR'S USE.

USE AIR PURIFYING RESPIRATORS WITHIN USE LIMITATIONS ASSOCIATED WITH THE EQUIPMENT OR ELSE USE SUPPLIED AIR-RESPIRATORS.

If air-purifying respirator use is appropriate, use any of the following particulate respirators: N95, N99, N100, R95, R99, RI00, P95, P99 or P100.

SKIN PROTECTION:

rubber, butyl or viton gloves -- Wash off after each use.

Replace as necessary.

EYE PROTECTION:

splash proof chemical goggles Substance or Preparation: SPECTRUS BD1500 Page 3

9 Physical and chemical properties Specific Grav.(70F,21C) 1.020 Vapor Pressure (mmHG) - 18.0 Freeze Point (F) 31 Vapor Density (air=l) < 1.00 Freeze Point (C) -1 Viscosity(cps 70F,21C) 30 % Soluibility (water) 100.0 Odor Slight Appearance Colorless Physical State Liquid Flash Point SETA(CC) > 200F > 93C pH As Is (approx.) 12.5 Evaporation Rate (Ether=l) < 1.00 Percent VOC: 0.0 NA = not applicable ND = not determined 10 Stability and reactivity CHEMICAL STABILITY:

Stable under normal storage conditions.

POSSIBILITY OF HAZARDOUS REACTIONS:

INCOMPATIBILITIES:

May react with strong oxidizers.

DECOMPOSITION PRODUCTS:

oxides of carbon 11 Toxicological information Oral LD50 RAT: >4,600 mg/kg NOTE - Estimated value Dermal LDSO RABBIT: >2,000 mg/kg NOTE - Estimated value 12 Ecological information AQUATIC TOXICOLOGY Ceriodaphnia 48 Hour Static Renewal Bioassay LC50 Greater Than= 3000 mg/L Ceriodaphnia 7 Day Static Renewal Bioassay IC25 = 652 mg/L Daphnia magna 48 Hour Static Acute Bioassay 0% Mortality= 2000 mg/L Fathead Minnow 7 Day Static Renewal Bioassay IC25 = 3000; LC50 Greater Than= 3000 mg/L Fathead Minnow 96 Hour Static Bioassay with 48-Hour Renewal 0% Mortality= 2000 mg/L Menidia beryllina (Silversides) 96 Hour Static Acute Bioassay 0% Mortality= 5000 mg/L Mysid Shrimp 96 Hour Static Acute Bioassay 25% Mortality= 5000; No Effect Level= 2500 mg/L Rainbow Trout 96 Hour Static Renewal Bioassay No Effect Level= 3000 mg/L No Data Available.

Substance or Preparation: SPECTRUS BD1 500 Page 4

BIODEGRADATION BOD-28 (mg/g) 5 BOD-5 (mg/g) :- 4 COD (mg/g) : 341 TOC (mg/g) : 80 13 Disposal considerations If this undiluted product is discarded as a waste, the US RCRA hazardous waste identification number is D002=Corrosive(pH).

Please be advised; however, that state and local requirements for waste disposal may be more restrictive or otherwise different from federal regulations. Consult state and local regulations regarding the proper disposal of this material.

14 Transport information DOT HAZARD: Not Applicable PROPER SHIPPING NAME:

DOT EMERGENCY RESPONSE GUIDE #: Not applicable Note: Some containers may be DOT exempt, please check BOL for exact container classification 15 Regulatory information TSCA:

All components of this product are included on or are in compliance with the U.S. TSCA regulations.

CERCLA AND/OR SARA REPORTABLE QUANTITY (RQ):

No regulated constituent present at OSHA thresholds FOOD AND DRUG ADMINISTRATION:

21 CFR 176.170 (components of paper and paperboard in contact with aqueous and fatty foods)

NSF Registered and/or meets USDA (according to 1998 Guidelines):

Registration number: 141059 Category Code(s):

SARA SECTION 312 HAZARD CLASS:

Product is non-hazardous under Section 311/312 SARA SECTION 302 CHEMICALS:

No regulated constituent present at OSHA thresholds SARA SECTION 313 CHEMICALS:

No regulated constituent present at OSHA thresholds CALIFORNIA REGULATORY INFORMATION CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT (PROPOSITION 65):

This product contains one or more ingredients at trace levels known r

to the state of California to cause cancer and reproductive toxicity.

MICHIGAN REGULATORY INFORMATION No regulated constituent present at OSHA thresholds Substance or Preparation: SPECTRUS BD1500 Page 5

16 Other information HMIS VII CODE TRANSLATION Health 1 Slight Hazard Fire 0 Minimal Hazard Reactivity 0 Minimal Hazard Special ALK pH above 12.0 (1) Protective Equipment B Goggles,Gloves (1) refer to section 8 of MSDS for additional protective equipment recommendations.

CHANGE LOG EFFECTIVE DATE REVISIONS TO SECTION: SUPERCEDES MSDS status: 14-JUL-1997 ** NEW **

09-SEP-1998 15 14-JUL-1997 15-SEP-1998 15 09-SEP-1998 25-JUN-1999 11 15-SEP-1998 02-APR-2001 12 25-JUN-1999 25-JUN-2001 15 02-APR-2001 05-OCT-2001 4,16 25-JUN-2001 10-JAN-2002 15 05-OCT-2001 18-JAN-2002 15 10-JAN-2002 07-FEB-2006 12 18-JAN-2002 10-JUL-2008 4, 8, 11, 15 07-FEB-2006 31-OCT-2008 11 10-JUL-2008 05-FEB-2009 12 31-OCT-2008 Substance or Preparation: SPECTRUS BD1 500 Page 6

Water & Process 'Technologies SopectrusTm BD15,00 aE Biocide Enhancer

" Improves the ability of biocides to control microbiological fouling

Con be used with both oxidizing and Untreoted ch~ollne Chlorne. 6D1500 Contro4 M0.75ppm.Insrt1tli 101 opin ling/Ut'10 omen non-oxidizing biocides

Compatible with all GE water treatment pro- Spectrus BD1500 Improves Performance of Halogen grams Treatment and Feeding Requirements Description and Use The typical feed range for Spectrus BD1500 ranges SpectrusTm BD1500 is a blend of non-ionic ingredi- from 10 to 50 ppm (mg/L) in the cooling water. Ac-ents specifically formulated to assist in the control tual dosage and frequency of Spectrus BD1500 ad-of microbiological fouling in industrial water sys- dition will depend on many factors. These include, tems. Control of microbiological populations in in- but are not limited to, system cleanliness, types of dustrial water systems is essential to prevent microbes, nutrient concentrations, temperature, pH, biofouling. In cooling systems, biofouling of heat retention time, and other system operating charac-exchange equipment and tower fill reduces heat teristics. Microbiological monitoring is recom-transfer efficiency and can force unscheduled mended to evaluate product requirements. Consult shutdowns and extended turnarounds leading to your GE representative for technical advice on your lost production. Equipment can also be damaged as specific application.

a result of microbiologically influenced corrosion (MIC) associated with biofouling. Consequently, bio- Spectrus BD1500 should be fed in conjunction with fouling must be prevented in order for operating biocides that are EPA approved for use in industrial units to avoid such events and achieve profit goals. water systems. If the biocide is fed continuously (e.g., continuous chlorination), feed Spectrus Although Spectrus BD1500 has no biocidal activity BD1500 continuously as well. In such systems, feed of its own, it can significantly enhance the effec- Spectrus BD1500 at a rate sufficient to generate the tiveness of biocides applied to industrial water sys- desired treatment residual (typically 5 to 15 ppm tems (see chart). Spectrus BD1500 can be used with [mg/LI) in the blowdown of recirculating cooling oxidizing biocides (such as chlorine, bromine, or systems or in the total water flow of once-through chlorine dioxide) as well as nonoxidizing biocides. cooling systems. In once-through cooling systems Spectrus BD1500 is especially useful when accept- and other systems that that are halogenated in-able control of biological activity cannot be termittently, begin feeding 5 to 15 ppm (mg/L) of achieved with biocides alone. For example the use Spectrus BD1500 30 minutes to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months prior to the of this product may be indicated where biocide us- start of halogenation and continue for the duration age or biocide discharge is limited by environ- of the halogen feed period. If the biocide is slug-fed, mental regulations. apply Spectrus BD1500 in a similar fashion. Base the quantity fed on the total system volume.

Visit us online at www.gewater.com Global Headquarters Americas Europe/Middle East/Africa Asia/Pacific 02004. General Electric Company. Trevose. PA Minnetonka. MN Heverlee, Belgium Shanghai. China All rights reserved. 215-355-3300 952-933-2277 32-16-40-20-00 86-21-5298-4573 Products mentioned ore trademarks of the General Electric Compony and moa be registered in one or more countries. PFC721EN 0410

Spectrus BD1500 has the potential to cause foam-ing, especially at higher dosages. If foam is a con-cern, have an antifoam available when using this product.

Feed point - Apply Spectrus BD1500 to a point in the system where turbulence and flow patterns as-sure good mixing with the water being treated.

Dilution - This blended product is best fed neat (un-diluted) from the storage container. If necessary (e.g,. for feeding from a day tank), the product can be diluted with water.

Compatible Materials - Spectrus BD1500 is com-patible with the following materials of construction:

Low Carbon Steel, Stainless Steel, Copper, Brass, PVC, High Density Cross-linked Polyethylene, Poly-propglene, Kgnar, Teflon, Nylon, Viton A, Buna N, Urethane, Neoprene, Natural Rubber, Viton Litharge.

(Kgnar is a registered trademark of Autofina Chemi-cals, Teflon and Viton are registered trademarks of DuPont.)

Avoid - Aluminum, High and Low Density Un-Crosslinked Polyethylene, Polysulfide, Hypalon, Buna S, Tygon. (Tygon is a registered trademark of Norton Co.)

General Properties Physical properties of Spectrus BD1500 are shown on the Material Safety Data Sheet, a copy of which is available on request.

Packaging information Spectrus BD1500 is a liquid and is available in a wide variety of containers and delivery methods, including GE's ChemSurelM Drumless Delivery Ser-vices Storage Store Spectrus BD1500 at moderate temperatures.

Protect from freezing. If frozen, thaw completely and mix thoroughly prior to use.

Safetg Precautions A Material Safety Data Sheet containing detailed information about this product is available upon request.

Page 2 Spectrus BD1500 Fact Sheet

Page 1 of 11 TOWERBROM(R) 60M GRANULES M31040_NAUS REVISION DATE: Feb 22 2008 aa Op*on.sble caee OxyChem Good annvai Work MATERIAL SAFETY DATA SHEET

1. PRODUCT AND COMPANY INFORMATION Occidental Chemical Corporation 5005 LBJ Freeway, Suite 2200 P.O. Box 809050 Dallas, Texas 75380-9050 24 HOUR EMERGENCY TELEPHONE: 1-800-733-3665 or 1-972-404-3228 (U.S.);

32.3.575.55.55 (Europe);

1800-033-111 (Australia)

TO REQUEST AN MSDS: MSDS@oxy.com or 1-972-404-3245 CUSTOMER SERVICE: 1-800-752-5151 or 1-972-404-3700 MSDS NUMBER: M31040 SUBSTANCE: TOWERBROM(R) 60M GRANULES PRODUCT USE: algaecide, microbiocide/microbiostat, disinfectant, bactericide, fungicide REVISION DATE: Feb 22 2008

2. HAZARDS IDENTIFICATION OSHA REGULATORY STATUS: This material is considered hazardous by the OSHA Hazard Communication Standard (29 CFR 1910.1200).

GHS CLASSIFICATION:

Acute toxicity, Category 3 GHS SYMBOL:

Page 2 of II TOWERBROM(R) 60M GRANULES M31040_NAUS REVISION DATE: Feb 22 2008 GHS SIGNAL WORD: DANGER GHS HAZARD STATEMENT:

Toxic if inhaled Harmful if swallowed May be harmful in contact with skin

!EMERGENCY OVERVIEW:

1COLOR: white PHYSICAL FORM: granules IODOR: bromine odor iSIGNAL WORD: DANGER IMAJOR HEALTH HAZARDS: CORROSIVE. CAUSES IRREVERSIBLE EYE DAMAGE. MAY

'CAUSE BURNS TO MOIST SKIN IF NOT PROMPTLY REMOVED. HARMFUL IF SWALLOWED OR

]ABSORBED THROUGH THE SKIN. IRRITATING TO NOSE AND THROAT.

ýjPHYSICAL HAZARDS: Strong oxidizer.

IECOLOGICAL HAZARDS: This material is toxic to fish and aquatic organisms.

!PRECAUTIONARY STATEMENTS: Do not get in eyes, on skin, or on clothing. Do not breathe dust,

,1vapor or spray mist. Wear goggles, faceshield or safety glasses. Wash thoroughly with soap and water after

'handling. Remove contaminated clothing and wash before reuse.

POTENTIAL HEALTH EFFECTS:

INHALATION:

This material in the form as sold is not expected to produce respiratory effects. Particles of respirable size are generally not encountered. The respirable fraction is typically less than 0.1% by weight. If ground or otherwise in a powdered form, effects similar to a corrosive substance may occur. May cause severe irritation of the respiratory tract with coughing, choking, pain and possibly burns of the mucous membranes.

If significant or prolonged exposure occurs, pulmonary edema may develop, either immediately or more often within a period of 5-72 hours. The symptoms may include tightness in the chest, dyspnea, frothy sputum, cyanosis, and dizziness. Physical findings may include moist rales, low blood pressure and high pulse pressure. Severe cases may be fatal.

SKIN CONTACT:

This material is corrosive to the skin. Direct contact with wet material or moist skin may cause severe irritation, pain, and possibly burns. Dry material is less irritating than wet material. This material is not a skin sensitizer based on studies with guinea pigs.

EYE CONTACT:

This material is corrosive to the eye. Direct contact may cause severe irritation, pain and burns, possibly severe, and permanent damage including blindness. The degree of injury depends.on the concentration and duration of contact.

INGESTION:

Page 3 of 11 TOWERBROM(R) 60M GRANULES M31040_NAUS REVISION DATE: Feb 22 2008 Ingestion may cause immediate pain and severe burns of the mucous membranes. There may be discoloration of the tissues. Swallowing and speech may be difficult at first and then almost impossible. The effects on the esophagus and gastrointestinal tract may range from irritation to severe corrosion. Edema of the epiglottis and shock may occur. Acute ingestion exposure may also cause CNS depression, coma, hypertension, tachycardia, and respiratory distress.

TARGET ORGANS: cardiovascular system, kidneys, bladder CHRONIC EFFECTS:

Based on animal studies, exposure to concentrations of monosodium cyanurate at the solubility limit may cause cardiovascular, kidney and urinary bladder effects. Depending on the concentration and duration of exposure, repeated or prolonged inhalation exposure may cause inflammatory and ulcerative changes in the upper respiratory tract. Although not a likely route of exposure, prolonged ingestion exposure may cause behavioral changes, irritability, headache, confusion, anorexia, slurred speech, and lethargy.

CARCINOGEN STATUS:

OSHA: No NTP: No IARC: No See Section 11: TOXICOLOGICAL INFORMATION

3. COMPOSITION/INFORMATION ON INGREDIENTS COMPONENT: SODIUM DICHLORO-S-TRIAZINETRIONE CAS NUMBER: 2893-78-9 PERCENTAGE: 88-90 COMPONENT: SODIUM BROMIDE CAS NUMBER: 7647-15-6 PERCENTAGE: 6-8 COMPONENT: SODIUM CHLORIDE CAS NUMBER: 7647-14-5 PERCENTAGE: 0.1-1.5 COMPONENT: WATER CAS NUMBER: 7732-18-5 PERCENTAGE: 0.5-3

4. FIRST AID MEASURES INHALATION: Move person to fresh air. Give artificial respiration if not breathing. If breathing is difficult, oxygen should be administered by qualified personnel. If respiration or pulse has stopped, have a

Page 4 of 11 TOWERBROM(R) 60M GRANULES M31040_NAUS REVISION DATE: Feb 22 2008 trained person administer Basic Life Support (Cardio-Pulmonary Resuscitation/Automatic External Defibrillator) and CALL FOR EMERGENCY SERVICES IMMEDIATELY.

SKIN CONTACT: Immediately flush contaminated areas with water. Remove contaminated clothing, jewelry, and shoes immediately. Wash contaminated areas with soap and water. Thoroughly clean and dry contaminated clothing and shoes before reuse. IF IRRITATION OCCURS, GET MEDICAL ATTENTION.

EYE CONTACT: Immediately flush eyes with a directed stream of water for at least 15 minutes, forcibly holding eyelids apart to ensure complete irrigation of all eye and lid tissues. Washing eyes within several seconds is essential to achieve maximum effectiveness. Remove contact lenses, if present, after the first 5 minutes, then continue rinsing eye. GET MEDICAL ATTENTION IMMEDIATELY.

INGESTION: Never give anything by mouth to an unconscious or convulsive person. If swallowed, do not induce vomiting. Give water. If vomiting occurs spontaneously, keep airway clear. Give more water when vomiting stops. GET MEDICAL ATTENTION IMMEDIATELY.

NOTE TO PHYSICIAN: Probable mucosal damage may contraindicate the use of gastric lavage.

5. FIRE FIGHTING MEASURES FIRE AND EXPLOSION HAZARDS: Negligible fire hazard. If heated by outside source to temperatures above 240 C (464 F), this product will undergo self-substaining decomposition with the evolution of noxious gases but no visible flame. Wet material may generate bromine or nitrogen trichloride, an explosion hazard.

EXTINGUISHING MEDIA: Flood with water. Do not use dry chemicals, carbon dioxide or halogenated extinguishing agents.

FIRE FIGHTING: Consider evacuation of personnel located downwind. Keep unnecessary people away, isolate hazard area and deny entry. Move container from fire area if it can be done without risk. Avoid inhalation of material or combustion by-products. Stay upwind and keep out of low areas. Wear NIOSH approved positive-pressure self-contained breathing apparatus in pressure-demand mode. Material which appears undamaged except for being damp on the outside, should be opened and inspected immediately. DO NOT attempt to reseal contaminated drums. Damp material should be neutralized to a non-oxidizing state.

Contact OxyChem for instructions for handling and disposal of damp material.

SENSITIVITY TO MECHANICAL IMPACT: Not sensitive SENSITIVITY TO STATIC DISCHARGE: Not sensitive FLASH POINT: Not applicable HAZARDOUS COMBUSTION PRODUCTS:

Thermal decomposition or combustion products: chlorine, bromine, nitrogen, nitrogen trichloride, cyanogen chloride, oxides of carbon, phosgene

Page 5 of 1 TOWERBROM(R) 60M GRANULES M31040_NAUS REVISION DATE: Feb 22 2008

6. ACCIDENTAL RELEASE MEASURES OCCUPATIONAL RELEASE:

Spills should be cleaned up as soon as possible. Keep unnecessary people away, isolate hazard area and deny entry. DO NOT add water to spilled materials. DO NOT use floor sweeping compounds to clean up spills.

Sweep and scoop spilled material into clean, dedicated equipment. Every attempt should be made to avoid mixing spilled material with other chemicals or debris when cleaning up. DO NOT attempt to reseal contaminated drums. DO NOT transport wet or damp material. Damp material should be neutralized to a non-oxidizing state. Contact OxyChem for instructions for handling and disposal of damp material. Keep out of water supplies and sewers. Releases should be reported, if required, to appropriate agencies.

7. HANDLING AND STORAGE STORAGE: Store and handle in accordance with all current regulations and standards. (NFPA Oxidizer Class 3.) Do not allow water to get in container. If liner is present, tie after each use. Keep container tightly closed and properly labeled. Store containers on pallets. Keep away from food, drink and animal feed. Keep separated from incompatible substances.

HANDLING: Do not get in eyes, on skin, or on clothing. Avoid breathing vapors or dust when opening container. Avoid creation of dust. Wash thoroughly after handling. Never add water to this product. Always add product to large quantities of water. Use clean, dry utensils. Do not add the product to any dispensing device containing residuals of other products.

8. EXPOSURE CONTROLS/PERSONAL PROTECTION EXPOSURE LIMITS:

TOWERBROM(R) 60M GRANULES:

Bromine may be found in slight amounts in the head space of containers of Towerbrom Products.

SODIUM DICHLORO-S-TRIAZINETRIONE:

0.5 mg/m3 recommended TWA 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months (s) (internal Occupational Exposure Limit)

BROMINE:

0.1 ppm (0.7 mg/m3) OSHA TWA 0.3 ppm (2 mg/m3) OSHA STEL (vacated by 58 FR 35338, June 30, 1993) 0.1 ppm ACGIH TWA 0.2 ppm ACGIH STEL BIOLOGICAL LIMIT VALUES:

TOWERBROM(R) 60M GRANULES:

No biological limit value(s) available.

Page 6 of 11 TOWERBROM(R) 60M GRANULES M31040 NA US REVISION DATE: Feb 22 2008 VENTILATION: Use only in well ventilated areas. Provide local exhaust ventilation where dust or mist may be generated. Ensure compliance with applicable exposure limits.

EYE PROTECTION: Wear chemical safety goggles. Provide an emergency eye wash fountain and quick drench shower in the immediate work area.

CLOTHING: Wear protective clothing to minimize skin contact. When potential for contact with dry material exists, wear disposable coveralls suitable for dust exposure, such as Tyvek. Contaminated clothing should be removed and laundered before reuse.

GLOVES: Wear appropriate chemical resistant gloves.

PROTECTIVE MATERIAL TYPES: butyl rubber, natural rubber, neoprene, nitrile, polyvinyl chloride (PVC), Tyvek RESPIRATOR: A NIOSH approved respirator with N95 (dust, fume, mist) filters may be permissible under certain circumstances.

The added protection of a full face piece respirator is required when visible dusty conditions are encountered and/or eye irritation is a potential.

Acid gas cartridges with N95 filters are required when fumes or vapor may be generated.

A respiratory protection program that meets 29 CFR 1910.134 must be followed whenever workplace conditions warrant the use of a respirator.

9. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE: solid COLOR: white PHYSICAL FORM: granules ODOR: bromine odor BOILING POINT: Not applicable MELTING POINT: decomposes without melting FLASH POINT: Not applicable DECOMPOSITION POINT: 486 F (252 C)

VAPOR PRESSURE: Not available VAPOR DENSITY: Not applicable SPECIFIC GRAVITY (water=l): Not applicable BULK DENSITY: 61-65 lbs/ft3 (loose)

WATER SOLUBILITY: Not available PH: 6-7 @ 25 C (1% solution)

VOLATILITY: Not applicable ODOR THRESHOLD: Not available EVAPORATION RATE: Not applicable COEFFICIENT OF WATER/OIL DISTRIBUTION: Not available

Page 7 of 1 TOWERBROM(R) 60M GRANULES M31040_NAUS REVISION DATE: Feb 22 2008

10. STABILITY AND REACTIVITY REACTIVITY: Stable at normal temperatures and pressure.

CONDITIONS TO AVOID: Do not get water inside container. Wet material may generate bromine or nitrogen trichloride, an explosion hazard. Avoid contact with easily oxidizable organic material.

INCOMPATIBILITIES: acids, ammonia, bases, floor sweeping compounds, calcium hypochlorite, reducing agents, organic solvents and compounds HAZARDOUS DECOMPOSITION:

Thermal decomposition or combustion products: chlorine, bromine, nitrogen, nitrogen trichloride, cyanogen chloride, oxides of carbon, phosgene POLYMERIZATION: Will not polymerize.

11. TOXICOLOGICAL INFORMATION TOWERBROM(R) 60M GRANULES:

IRRITATION DATA: PRIMARY EYE IRRITATION: Severe Irritation, Corrosive (rabbit, 24 hr)

PRIMARY SKIN IRRITATION: Severe Irritation, (rabbit, 4 hr);

TOXICITY DATA: 710 mg/kg oral-rat LD50; >2000 mg/kg skin-rabbit LD50; 0.60 mg/L/4 hour(s) inhalation-rat LC50; CHRONIC EXPOSURE: Monosodium cyanurate was administered via drinking water to rats for 104 weeks at concentrations of 0, 400, 1200, 2400, and 5375 ppm (solubility limit). No compound-related effects on body weights, clinical signs of toxicity or food or water consumption were noted during the study. An increased incidence of gross lesions in the urinary tract, calculi in the kidney and lesions in the heart were observed in males receiving the highest dose level of 5375 ppm (solubility limit).

The health effects seen in this study were due to precipitation of the test substance in the urinary tract when the test substance was fed at the solubility limit. Adverse health effects were not seen at lower doses where precipitation did not occur. MUTAGENIC DATA: Not mutagenic in 5 salmonella strains and I E. coli strain with or without mammalian microsomal activation. REPRODUCTIVE EFFECTS DATA: There are no known or recorded effects on reproductive function or fetal development. A 7 month diet rat study with sodium bromide followed with a 3 month control diet in the reversibility group showed complete infertility at the highest dose. No treatment-related effects were observed in reproductive performance, viability and bodyweight of the offspring in the second and third generations. Results of the reversibility group showed clearly that the effects of bromide on reproduction are reversible.

CARCINOGEN STATUS: THIS SUBSTANCE IS NOT A KNOWN CARCINOGEN.

12. ECOLOGICAL INFORMATION

Page 8 of 11 60M GRANULES TOWERBROM(R)

M31040_NAUS REVISION DATE: Feb 22 2008 ECOTOXICITY DATA:

FISH TOXICITY: Sodium Dichloroisocyanurate/Sodium Bromide Formulation: This material is believed to be highly toxic to aquatic life. 0.4 mg/L 48 hour5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months (s) LC50 Fathead Minnow; 1.5 mg/L 96 hours0.00111 days 0.0267 hours 1.587302e-4 weeks 3.6528e-5 months LC50 Inland Silverside; INVERTEBRATE TOXICITY: Sodium Dichloroisocyanurate/Sodium Bromide Formulation: 1.35 mg/L 48 hour5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months (s) LC50 Daphnia magna; 2.4 mg/L 96 hours0.00111 days 0.0267 hours 1.587302e-4 weeks 3.6528e-5 months LC50 Mysid Shrimp ALGAL TOXICITY: 0.3 mg/L 96 hour0.00111 days 0.0267 hours 1.587302e-4 weeks 3.6528e-5 months (s) EC50 Selenastrum FATE AND TRANSPORT:

BIODEGRADATION: This material is subject to hydrolysis. Cyanuric acid produced by hydrolysis is biodegradable.

PERSISTENCE: This material is believed not to persist in the environment. Free available halogen is rapidly consumed by reaction with organic and inorganic materials to produce chloride and bromide ions.

The stable degradation products are chloride and bromide ions and cyanuric acid.

BIOCONCENTRATION: Trichloroisocyanuric acid hydrolyzes in water liberating chlorine and cyanuric acid. These products are not bioaccumulative.

OTHER ECOLOGICAL INFORMATION: This material is toxic to fish and aquatic organisms. 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 into sewer systems without previously notifying the sewage treatment plant authority.

For guidance, contact your State Water Board or Regional Office of EPA.

13. DISPOSAL CONSIDERATIONS Use or reuse if possible. This material is a registered pesticide. Dispose in accordance with all applicable regulations. Do not put product, spilled product, or filled or partially filled containers into the trash or waste compactor. Contact with incompatible materials could cause a reaction and fire. DO NOT transport wet or damp material. Damp material should be neutralized to a non-oxidizing state. Contact OxyChem for instructions for handling and disposal of damp material. See product label for container disposal information.

May be subject to disposal regulations: U.S. EPA 40 CFR 262. Hazardous Waste Number(s): D001.

14. TRANSPORT INFORMATION U.S. DOT 49 CFR 172.101:

PROPER SHIPPING NAME: Dichloroisocyanuric acid salts mixture ID NUMBER: UN2465 HAZARD CLASS OR DIVISION: 5.1

Page 9 of 11 TOWERBROM(R) 60M GRANULES M31040_NAUS REVISION DATE: Feb 22 2008 PACKING GROUP: II LABELING REQUIREMENTS: 5.1 CANADIAN TRANSPORTATION OF DANGEROUS GOODS:

SHIPPING NAME: Dichloroisocyanuric acid salts mixture UN NUMBER: UN2465 CLASS: 5.1 PACKING GROUP/RISK GROUP: 1I

15. REGULATORY INFORMATION U.S. REGULATIONS:

CERCLA SECTIONS 102a/103 HAZARDOUS SUBSTANCES (40 CFR 302.4): Not regulated.

SARA TITLE III SECTION 302 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355.30): Not regulated.

SARA TITLE III SARA SECTIONS 311/312 HAZARDOUS CATEGORIES (40 CFR 370.21):

ACUTE: Yes CHRONIC: Yes FIRE: Yes REACTIVE: Yes SUDDEN RELEASE: No SARA TITLE III SECTION 313 (40 CFR 372.65): Not regulated.

OSHA PROCESS SAFETY (29CFR1910.119): Not regulated.

OTHER U.S. REGULATIONS: Federal Insecticide, Fungicide and Rodenticide Act (FIFRA): Registered pesticide (40 CFR 152).

STATE REGULATIONS:

California Proposition 65: Not regulated.

NEW JERSEY WORKER AND COMMUNITY RIGHT TO KNOW:

REPORTING REQUIREMENT:

SODIUM DICHLORO-S-TRIAZINETRIONE 2893-78-9 88-90%

SODIUM BROMIDE 7647-15-6 6-8%

SODIUM CHLORIDE 7647-14-5 0.1-1.5%

SPECIAL HEALTH HAZARD SUBSTANCE LIST:

SODIUM DICHLORO-S-TRIAZINETRIONE 2893-78-9 88-90% (Reactive)

PENNSYLVANIA RIGHT TO KNOW:

Page 10 of I1 TOWERBROM(R) 60M GRANULES M31040_NAUS REVISION DATE: Feb 22 2008 REPORTING REQUIREMENT:

SODIUM DICHLORO-S-TRIAZINETRIONE 2893-78-9 88-90%

SODIUM BROMIDE 7647-15-6 6-8%

CANADIAN REGULATIONS:

WHMIS CLASSIFICATION: Material is regulated as a pesticide, therefore is not regulated under WHMIS.

NATIONAL INVENTORY STATUS:

U.S. INVENTORY (TSCA): All the components of this substance are listed on or are exempt from the inventory.

TSCA 12(b) EXPORT NOTIFICATION: Not listed.

CANADA INVENTORY (DSL/NDSL): All components of this product are listed on either the DSL or the NDSL.

16. OTHER INFORMATION NFPA RATINGS (SCALE 0-4): HEALTH=2 FIRE=0 REACTIVITY=2 HMIS RATINGS (SCALE 0-4): HEALTH=3* FLAMMABILITY=0 REACTIVITY=2 This information is intended solely for the use of individuals trained in the NFPA and/or HMIS systems.

Rated using 2nd Edition HMIS Instructions.

MSDS

SUMMARY

OF CHANGES

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

2. HAZARDS IDENTIFICATION

3. COMPOSITION, INFORMATION ON INGREDIENTS

4. FIRST AID MEASURES

5. FIRE FIGHTING MEASURES

8. EXPOSURE CONTROLS, PERSONAL PROTECTION

9. PHYSICAL AND CHEMICAL PROPERTIES

11. TOXICOLOGICAL INFORMATION

12. ECOLOGICAL INFORMATION

13. DISPOSAL CONSIDERATIONS

15. REGULATORY INFORMATION Standard 29 CFR 1910.1200 requires that information be provided to employees regarding the hazards of chemicals by means of a hazard communication program including labeling, material safety data sheets, training and access to written records. We request that you, and it is your legal duty to, make all information in this Material Safety Data Sheet available to your employees.

Page 11 of 11 TOWERBROM(R) 60M GRANULES M31040_NA-US REVISION DATE: Feb 22 2008 IMPORTANT: The information presented herein, while not guaranteed, was prepared by competent technical personnel and is true and accurate to the best of our knowledge. NO WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE, OR WARRANTY OR GUARANTY OF ANY OTHER KIND, EXPRESS OR IMPLIED, IS MADE REGARDING PERFORMANCE, SUITABILITY, STABILITY OR OTHERWISE. The information included herein is not intended to be all-inclusive as to the appropriate manner and/or conditions of use, handling and/or storage. Factors pertaining to certain conditions of storage, handling, or use of this product may involve other or additional safety or performance considerations. While our technical personnel will be happy to respond to questions regarding safe handling and use procedures, safe handling and use remains the responsibility of the customer. No suggestions for use are intended to, and nothing herein shall be construed as a recommendation to, infringe any existing patents or violate any laws, rules, regulations or ordinances of any governmental entity.

Oxyuhem Res~pons.ib1le Care,

.ood "hmito.1 Work ACLc Chlorinated Isocyanurates SALES SPECIFICATION TOWERBROM 60M Granules Towerbrom 60M is an OxyChem trade name for this blend of sodium dichloro-s-triazinetrione and sodium bromide. This product is registered by the United States Environmental Protection Agency as a microbicide for various industrial water treatment applications (EPA Registration No. 935-71). Contact OxyChem for private labeling options. .

Property Specification Appearance White to off-white, free flowing granules Available Halogen, % (as chlorine) 57.0 Minimum Sodium Bromide, % 7 Packaging 50 lb. / 22.7 kg. plastic pails Registered trademark of Occidental Chemical Corporation TB60M 08/08 Important! The information presented herein, while not guaranteed. was q

0XV Occidental Chemical Corporation prepared by technical personnel and is true and accurate to the best of our

' ,,- A subsidiary of Occidental Petroleum Corporation knowledge. No warranty or guaranty, express or implied, is made regarding safety, performance, stability or otherwise. This information is not intended to be all-Occidental Tower inclusive as the manner and conditions of use, handling, storage and other factors 5005 LBJ Freeway may involve additional environmental, safety or performance considerations. Whiie Dallas, Texas 75244-6119 our technicai personnel will be happy to respond to questions, safe handling and 800-752-5151 use of the product remains the responsibility of the customer. No suggestions for use are intended as, and nothing herein shall be construed as, a recommendation to infringe any existing patents or to violate any Federal, State, local or foreign laws.

GE Water & Process Technologies Issue Date: 23-JAN-2008 Material Safety Data Sheet Supercedes: 23-JAN-2008 SPECTRUS OX1 200 1 Identification Identification of substance or preparation SPECTRUS OX1 200 Product Application Area Solid microbial control agent.

Company/Undertaking Identification GE Betz, Inc.

4636 Somerton Road Trevose, PA 19053 T 215 355-3300, F 215 953 5524 Emergency Telephone (800) 877-1940 Prepared by Product Stewardship Group: T 215-355-3300 Prepared on: 23-JAN-2008 2 Hazard(s) identification EMERGENCY OVERVIEW DANGER Moderately irritating. May be corrosive in contact with moist skin.

Severe irritant to the eyes. Dusts cause irritation to the upper respiratory tract.

DOT hazard: Oxidizer Odor: Slight; Appearance: White, Granules Fire fighters should wear positive pressure self-contained breathing apparatus(full face-piece type). Proper fire-extinguishing media:

Flood with water. Use of C02 or foam may not be effective.

POTENTIAL HEALTH EFFECTS ACUTE SKIN EFFECTS:

Primary route of exposure; Moderately irritating. May be corrosive in contact with moist skin.

ACUTE EYE EFFECTS:

Severe irritant to the eyes.

ACUTE RESPIRATORY EFFECTS:

Dusts cause irritation to the upper respiratory tract.

Substance or Preparation: SPECTRUS OX1 200 Page 1

INGESTION EFFECTS:

May cause severe irritation or burning of the gastrointestinal tract.

TARGET ORGANS:

Repeated skin contact may cause sensitization.

MEDICAL CONDITIONS AGGRAVATED:

Not known.

SYMPTOMS OF EXPOSURE:

May cause redness or itching of skin, irritation, and/or tearing of eyes (direct contact).

3 Composition / information on ingredients Information for specific product ingredients as required by the U.S. OSHA HAZARD COMMUNICATION STANDARD is listed. Refer to additional sections of this MSDS for our assessment of the potential hazards of this formulation.

HAZARDOUS INGREDIENTS:

Cas# Chemical Name Range(w/w%)

16079-88-2 I-BROMO-3-CHLORO-5,5-DIMETHYLHYDANTOIN 60-100 Oxidizer; irritant (eyes and skin) 4 First-aid measures SKIN CONTACT:

Wash thoroughly with soap and water. Remove contaminated clothing.

Thoroughly wash clothing before reuse. Immediately contact a physician.

EYE CONTACT:

Remove contact lenses. Hold eyelids apart. Immediately flush eyes with plenty of low-pressure water for at least 15 minutes. Get immediate medical attention.

INHALATION:

Remove to fresh air. If breathing is difficult, give oxygen. If breathing has stopped, give artificial respiration. Get immediate medical attention.

INGESTION:

Do not feed anything by mouth to an unconscious or convulsive victim. Do not induce vomiting. Immediately contact physician.

Dilute contents of stomach using 2-8 fluid ounces (60-240 mL) of milk or water.

NOTES TO PHYSICIANS:

Material is corrosive. It may not be advisable to induce vomiting.

Possible mucosal damage may contraindicate the use of gastric lavage.

5 Fire-fighting measures Substance or Preparation: SPECTRUS OX1200 Page 2

FIRE FIGHTING INSTRUCTIONS:

Fire fighters should wear positive pressure self-contained breathing apparatus (full face-piece type).

EXTINGUISHING MEDIA:

Flood with water. Use of C02 or foam may not be effective.

HAZARDOUS DECOMPOSITION PRODUCTS:

oxides of carbon and nitrogen, hydrogen chloride, and hydrogen bromide FLASH POINT:

> 200F > 93C P-M(CC)

MISCELLANEOUS:

Oxidizer UN 1479;Emergency Response Guide #140 6 Accidental release measures PROTECTION AND SPILL CONTAINMENT:

Ventilate area. Use specified protective equipment. Contain and absorb on absorbent material. Place in waste disposal container.

Product releases chlorine when wet. Spill residue may be neutralized with 3% hydrogen peroxide solution.

DISPOSAL INSTRUCTIONS:

Water contaminated with this product may be sent to a sanitary sewer treatment facility, in accordance with any local agreement,a permitted waste treatment facility or discharged under a permit. Product as is - Dispose of in approved pesticide facility or according to label instructions.

7 Handling and storage HANDLING:

Oxidizer. Avoid all contact with reducing agents, oils, greases, organics and acids.

STORAGE:

Keep containers closed when not in use. Keep dry. Do not store at high temperature or near oxidizables or combustibles. Shelf life 270 days.

8 Exposure controls / personal protection EXPOSURE LIMITS CHEMICAL NAME I-BROMO-3-CHLORO-5,5-DIMETHYLHYDANTOIN PEL (OSHA) : NOT DETERMINED TLV (ACGIH) : NOT DETERMINED ENGINEERING CONTROLS:

Adequate ventilation to maintain air contaminants below exposure limits.

PERSONAL PROTECTIVE EQUIPMENT:

Use protective equipment in accordance with 29CFR 1910 Subpart I RESPIRATORY PROTECTION:

A RESPIRATORY PROTECTION PROGRAM THAT MEETS OSHA'S 29 CFR 1910.134 AND ANSI Z88.2 REQUIREMENTS MUST BE FOLLOWED WHENEVER WORKPLACE CONDITIONS WARRANT A RESPIRATOR'S USE.

Substance or Preparation: SPECTRUS OX1 200 Page 3

USE AIR PURIFYING RESPIRATORS WITHIN USE LIMITATIONS ASSOCIATED WITH THE EQUIPMENT OR ELSE USE SUPPLIED AIR-RESPIRATORS.

If air-purifying respirator use is appropriate, use a respirator with acid gas cartridges and dust/mist prefilters.

SKIN PROTECTION:

gauntlet-type butyl or rubber gloves, chemical resistant apron-- Wash off after each use. Replace as necessary.

EYE PROTECTION:

airtight chemical goggles 9 Physical and chemical properties Density NO DATA Vapor Pressure (mmHG) < 1.0 Freeze Point (F) NA Vapor Density (air=l) < 1.00 Freeze Point (C) NA Viscosity(cps 70F,21C) NA % Solubility (water) 0.2 Odor Slight Appearance White Physical State Granules Flash Point P-M(CC) > 200F > 93C pH 5% Disp. (approx.) 4.7 Evaporation Rate (Ether=l) < 1.00 Percent VOC: 0.0 NA not applicable ND = not determined 10 Stability and reactivity STABILITY:

Stable under normal storage conditions.

HAZARDOUS POLYMERIZATION:

Will not occur.

INCOMPATIBILITIES:

Slowly releases halogen gases when contaminated with moisture. May react with alkalies, acids, organics or reducing agents.

DECOMPOSITION PRODUCTS:

oxides of carbon and nitrogen, hydrogen chloride, and hydrogen bromide 11 Toxicological information Oral LD50 RAT: 578 mg/kg NOTE - 600 mg/kg per alt. source; dehalogenated byproduct rat oral LD50: >4,000 mg/kg Teratology RAT:

NOTE - Dehalogenated byproduct study had terata (secondary) at maternal toxic doses Reproductive Toxicity RAT: 4,500 mg/kg/day NOTE - Dehalogenated byproduct study had no adverse reproductive toxicity Dermal LDS0 RABBIT: >2,000 mg/kg NOTE - Alternate source concurs Inhalation LC50 RAT: 1.88 mg/L/4hr NOTE - >3.2 mg/L/4hr at 100 ppm (no deaths) per alternate source Substance or Preparation: SPECTRUS OX1 200 Page 4

Skin Irritation Score RABBIT: 6.1 NOTE - 6.98 per alternate source; reversible; dehalogenated byproduct score: 0.8 Eye Irritation Score RABBIT: 103 NOTE - 14 day-irreversible-max.at day 3; dehalogenated byproduct score: 12.8-reversible 90 Day Feed Study RAT:

NOTE - Dehalogenated byproduct 90-day oral LD50: >2,000 mg/kg/day Skin Sensitization G.PIG: POSITIVE NOTE - Buehler Test; Dehalogenated byproduct was negative in Buehler Test Ames Assay BACTERIA: NEGATIVE NOTE - +/- metabolic activation; Dehalogenated byproduct: negative Non-Ames Mutagenicity YEAST: NEGATIVE NOTE - Dehalogenated byproduct negative for: Mouse Lymphoma, SCE, Cell Transformation 12 Ecological information AQUATIC TOXICOLOGY Daphnia magna 48 Hour Static Acute Bioassay LC50= .47; No Effect Level= .31 mg/L Fathead Minnow 96 Hour Static Acute Bioassay LC50= 2.34; No Effect Level= 1.8 mg/L Rainbow Trout 96 Hour Static Acute Bioassay LC50= .9; No Effect Level= .52 mg/L Sheepshead Minnow 96 Hour Static Acute Bioassay LC50= 20.8; No Effect Level= 11.6 mg/L BIODEGRADATION BOD-28 (mg/g) : 11 BOD-5 (mg/g): 6 COD (mg/g) : 938 TOC (mg/g) : 255 13 Disposal considerations If this undiluted product is discarded as a waste, the US RCRA hazardous waste identification number is D001=Ignitable.

Please be advised; however, that state and local requirements for waste disposal may be more restrictive or otherwise different from federal regulations. Consult state and local regulations regarding the proper disposal of this material.

14 Transport information DOT HAZARD: Oxidizer PROPER SHIPPING NAME: OXIDIZING SOLID N.O.S.(Bromo-3-Chloro-5, 5-Dimethylhydantoin) 5.1, UN 1479, PG II DOT EMERGENCY RESPONSE GUIDE #: 140 Note: Some containers may be DOT exempt, please check BOL for exact container classification Substance or Preparation: SPECTRUS OX1 200 Page 5

15 Regulatory information TSCA:

This is an EPA registered biocide and is exempt from TSCA inventory requirements.

CERCLA AND/OR SARA REPORTABLE QUANTITY (RQ):

No regulated constituent present at OSHA thresholds FIFRA REGISTRATION NUMBER:

3876- 150 FOOD AND DRUG ADMINISTRATION:

21 CFR 176.300 (slimicides for wet end use)

When used in this specified application, all ingredients comprising this product are authorized by FDA for the manufacture of paper and paperboard that may contact aqueous and fatty foods as per 21 CFR 176.170(a) (4).

NSF Registered and/or meets USDA (according to 1998 Guidelines):

Registration number: 140723 Category Code(s):

G5 Cooling and retort water treatment products - all food processing areas G7 Boiler treatment products - all food processing areas/nonfood contact SARA SECTION 312 HAZARD CLASS:

Immediate(acute);Delayed(Chronic);Fire;Reactive SARA SECTION 302 CHEMICALS:

No regulated constituent present at OSHA thresholds SARA SECTION 313 CHEMICALS:

No regulated constituent present at OSHA thresholds' CALIFORNIA REGULATORY INFORMATION CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT (PROPOSITION 65):

No regulated constituents present MICHIGAN REGULATORY INFORMATION No regulated constituent present at OSHA thresholds 16 Other information HMIS vIl CODE TRANSLATION Health 3 Serious Hazard Fire 1 Slight Hazard Reactivity 1 Slight Hazard Special OXY DOT or NFPA Oxidizer (1) Protective Equipment C Goggles,Gloves,Apron (1) refer to section 8 of MSDS for additional protective equipment recommendations.

CHANGE LOG EFFECTIVE DATE REVISIONS TO SECTION: SUPERCEDES MSDS status: 24-SEP-1997 ** NEW **

03-OCT-1997 8 24-SEP-1997 02-DEC-1997 15 03-OCT-1997 23-DEC-1997 15 02-DEC-1997 Substance or Preparation: SPECTRUS OX1 200 Page 6

15-JAN-1998 15 23-DEC-1997 01-JUL-1998 15 15-JAN-1998 14-SEP-1999 ;EDIT:9 01-JUL-1998 11-MAY-2000 4; EDIT: 9 14-SEP-1999 22-SEP-2000 8 11-MAY-2000 22-MAR-2001 15 22-SEP-2000 01-JUN-2001 15 22-MAR-2001 18-FEB-2002 3,4 01-JUN-2001 19-FEB-2002 3,4 18-FEB-2002 20-FEB-2002 3,4 19-FEB-2002 23-JAN-2008 4,5,7,8,10 20-FEB-2002 Substance or Preparation: SPECTRUS OX1 200 Page 7

03_

Water & Process Technologies MipectruosTM On1200 Microbiological Control Agent

Broad spectrum antimicrobial Spectrus OX1200 has been granted potable certifi-

Fast dissolving, granular bromine donor cation by the NSF (National Sanitation Foundation).

" Very effective in NH3 contaminated and alkaline NSF certification allows Spectrus OX1200 to be ap-waters plied to EPA registered end-use areas where pota-ble water take-offs may be downstream of the

Safe replacement for chlorine gas product feedpoint. NSF has certified that a feedrate

USDA Approved (G-5, G-7) of 3 ppm (mg/L) Spectrus OX1200 (as product) is

" NSF Potable approval safe for use in finished drinking water. NSF certifi-

" Approved for sale in California cation does not imply that Spectrus OX1200 can be used in end-use patterns that are not already EPA approved. A complete listing of EPA registered end-Description and Use uses can be found on the product label.

SpectrusTM OX1200 is an effective, broad spectrum microbiological control agent that contains stabi- Treatment and Feeding Requirements lized halogen in a concentrated granular form. As granules dissolve in water, active bromine and chlo- Spectrus OX1200 is best applied through a bypass rine are released in a controlled fashion. Bromine feeder to achieve consistent and effective product residuals throughout a system. GE offers a full and chlorine work together to control microbes range of Solid Halogen Feeders which can be used such as bacteria, fungi, and algae.

for continuously feeding or shot-feeding Spectrus Control of microbiological populations in industrial OX1200.

water system is essential to prevent biofouling. In cooling systems, biofouling of heat exchange Fast-dissolving, granular Spectrus OX1200 is par-equipment and tower fill reduces heat transfer effi- ticulorly well suited to shot-feeding. Shot-feeding has proven to be the most cost-effective mode for ciency and can force unscheduled shutdowns and extended turnarounds, leading to lost production. preventing biofouling of heat exchange equipment Biofouling can also damage equipment through or tower fill. Shot-feeding Spectrus OX1200 also microbiologically influenced corrosion (MIC). As a allows biofouling control of utility surface condens-result of these effects, biofouling must be prevented ers without exceeding total residual oxidant dis-in order for operating units to achieve profitability charge limits.

goals.

Continuous application of Spectrus OX1200 can be employed where it is necessary to maintain a con-Spectrus OX1200 contains 96% 1-bromo-3-chloro-5, 5-dimethyl hydantoin. It is EPA-approved for use stant halogen residual in a water supply or where it in a variety of industrial water systems including: is necessary to deliver water of a certain microbi-recirculating cooling systems, once-through cooling ological quality on a 24-hour basis.

systems, air washers, brewery pasteurizers, water- Correct treatment levels and frequency of Spectrus based scrubbers, and influent water systems. OX1200 addition depend on many factors. These include, but are not limited to, system cleanliness, Visit us online at www.gewater.com Global Headquarters Americas Europe/Middle East/Africa Asia/Pacific

©2004.General Electric Compong. Trevose. PA Minnetonko. MN Heverlee, Belgium Shanghai, Chino Allrights reserved. 215-355-3300 952-933-2277 32-16-40-20-00 86-21-5298-4573 Products mentioned ore trademarks of the Generol Electric Compony ond maybe registered in one or more countries. PFC731EN 0410

types of microbes, nutrient concentrations, tempera General Information ture, pH, retention time, and other system operating characteristics. Consult the product label for gen- EPA Registration Number .............. 3876-150 eral dosage guidelines. Microbiological monitoring is recommended to evaluate product requirements.

Consult your GE representative for technical advice on your specific application.

In all cases, this product must be applied in accor-dance with use instructions on the Spectrus OX1200 label.

Compatible Materials - Spectrus OX1200 is com-patible with the following materials of construction:

High Density, Cross-linked Polyethylene; Teflon; PVC: PVDF (Kynar): Fiberglass Reinforced Plastic; Litharge Viton. (Teflon is a registered trademark of DuPont, Kynar is a registered trademark of Autofina Chemicals.)

Avoid: Linear Polyethylene; Neoprene; Buna N; Buna S; Ethylene Propylene Resin. Because of its halogen contact, most metals will experience corro-sion when in direct contact with Spectrus OX1200 granules.

General Properties Physical properties of Spectrus OX1200 are shown on the Material Safety Data Sheet, a copy of which is available on request.

Packaging Information Spectrus OX1200 is supplied as a dry granule and is available in a variety of container and delivery methods. Consult your GE representative for de-tails.

Storage Store in closed container when not in use. Keep product dry. Do not store at high temperature or near oxidizobles or combustibles. Do not contami-nate.

Safety Precautions A Material Safety Data Sheet containing detailed information about this product is available on re-quest. Use airtight chemical goggles and gauntlet-type gloves when handling this product. See Sec-tion 7 of the MSDS for additional information on recommended personal protective equipment.

Page 2 Spectrus OX1200 Fact Sheet

GE Betz GE Betz, Inc. Material Safety Data Sheet 4636 Somerton Road Trevose, PA 19053 Issue Date: 16-JAN-2002 Business telephone: (215) 355-3300 EMERGENCY TELEPHONE (Health/Accident): (800) 877-1940 1 PRODUCT IDENTIFICATION PRODUCT NAME:

SPECTRUS DT1401 PRODUCT APPLICATION AREA:

A DETOXIFYING AGENT 2 COMPOSITION / INFORMATION ON INGREDIENTS Information for specific product ingredients as required by the U.S. OSHA HAZARD COMMUNICATION STANDARD is listed. Refer to additional sections of this MSDS for our assessment of the potential hazards of this formulation.

HAZARDOUS INGREDIENTS:

CAS# CHEMICAL NAME 14808-60-7 RESPIRABLE QUARTZ (CRYSTALLINE SILICA)

Irritant (respiratory); probable human carcinogen (IARC=2A; NTP=anticipated); may cause long term lung disease (silicosis) 3 HAZARDS IDENTIFICATION EMERGENCY OVERVIEW CAUTION Non-hazardous to skin. Potential eye irritant due to mechanical action only. Dusts may cause irritation to the upper respiratory tract. Inhalation may result in shortness of breath and reduced pulmonary function.

DOT hazard is not applicable Emergency Response Guide is not applicable Odor: None; Appearance: Gray To Brown, Granules Fire fighters should wear positive pressure self-contained breathing apparatus(full face-piece type). Proper fire-extinguishing media:

dry chemical, carbon dioxide, foam or water POTENTIAL HEALTH EFFECTS ACUTE SKIN EFFECTS:

Non-hazardous to skin.

ACUTE EYE EFFECTS:

Potential eye irritant due to mechanical action only.

ACUTE RESPIRATORY EFFECTS:

Primary route of exposure;Dusts may cause irritation to the upper respiratory tract. Inhalation may result in shortness of breath and reduced pulmonary function.

INGESTION EFFECTS:

May cause slight gastrointestinal irritation.

TARGET ORGANS:

Prolonged or repeated exposures may cause silicosis and may increase risk of cancer.

MEDICAL CONDITIONS AGGRAVATED:

Respiratory ailments.

SYMPTOMS OF EXPOSURE:

Inhalation of the dust may cause irritation to the upper respiratory tract and create breathing difficulties such as shortness of breath.

4 FIRST AID MEASURES SKIN CONTACT:

Wash thoroughly with soap and water. Remove contaminated clothing.

Get medical attention if irritation develops or persists.

EYE CONTACT:

Remove contact lenses. Hold eyelids apart. Immediately flush eyes with plenty of low-pressure water for at least 15 minutes. Get medical attention if irritation persists after flushing.

INHALATION:

If nasal, throat or lung irritation develops - remove to fresh air and get medical attention.

INGESTION:

Do not feed anything by mouth to an unconscious or convulsive victim. Do not induce vomiting. Immediately contact physician.

Dilute contents of stomach using 3-4 glasses milk or water.

NOTES TO PHYSICIANS:

No special instructions 5 FIRE FIGHTING MEASURES

FIRE FIGHTING INSTRUCTIONS:

Fire fighters should wear positive pressure self-contained breathing apparatus (full face-piece type).

EXTINGUISHING MEDIA:

dry chemical, carbon dioxide, foam or water HAZARDOUS DECOMPOSITION PRODUCTS:

Thermal decomposition (destructive fires) yields elemental oxides.

FLASH POINT:

> 200F > 93C P-M(CC) 6 ACCIDENTAL RELEASE MEASURES PROTECTION AND SPILL CONTAINMENT:

Ventilate area. Use specified protective equipment. Contain and absorb on absorbent material. Place in waste disposal container.

Flush area with water. Wet area may be slippery. Spread sand/grit.

DISPOSAL INSTRUCTIONS:

Water contaminated with this product may be sent to a sanitary sewer treatment facility,in accordance with any local agreement,a permitted waste treatment facility or discharged under a permit. Product as is - Incinerate or land dispose in an approved landfill.

7 HANDLING & STORAGE HANDLING:

Normal chemical handling.

STORAGE:

Keep containers closed when not in use. Keep dry.

8 EXPOSURE CONTROLS / PERSONAL PROTECTION EXPOSURE LIMITS CHEMICAL NAME RESPIRABLE QUARTZ (CRYSTALLINE SILICA)

PEL (OSHA): 0.1 MG/M3 TLV (ACGIH): 0.05 MG/M3 RESPERABLE FRACTION ENGINEERING CONTROLS:

Adequate ventilation to maintain air contaminants below exposure limits.

PERSONAL PROTECTIVE EQUIPMENT:

Use protective equipment in accordance with 29CFR 1910 Subpart I RESPIRATORY PROTECTION:

A RESPIRATORY PROTECTION PROGRAM THAT MEETS OSHA'S 29 CFR 1910.134 AND ANSI Z88.2 REQUIREMENTS MUST BE FOLLOWED WHENEVER WORKPLACE CONDITIONS WARRANT A RESPIRATOR'S USE.

USE AIR PURIFYING RESPIRATORS WITHIN USE LIMITATIONS ASSOCIATED WITH THE EQUIPMENT OR ELSE USE SUPPLIED AIR-RESPIRATORS.

If air-purifying respirator use is appropriate, use a respirator with dust/mist filters.

SKIN PROTECTION:

rubber gloves-- Wash off after each use. Replace as necessary.

EYE PROTECTION:

safety glasses 9 PHYSICAL & CHEMICAL PROPERTIES

Density 5 8.000 lb/cu. Vapor Pressure (mmHG) < 1.0 Freeze Point (F) NA Vapor Density (air=l) < 1.00 Freeze Point (C) NA Viscosity(cps 70F,21C) NA % Solubility (water) 0.0 Odor None Appearance Gray To Brown Physical State Granules Flash Point P-M(C C) > 200F > 93C pH 5% Susp. (approx.) 8.8 Evaporation Rate (Ether=l) < 1.00 NA = not applicable ND = not determined 10 STABILITY & REACTIVITY STABILITY*

Stable under normal storage conditions.

HAZARDOUS POLYMERIZATION:

Will not occur.

INCOMPATIBILITIES:

May react with strong oxidizers.

DECOMPOSITION PRODUCTS:

Thermal decomposition (destructive fires) yields elemental oxides.

INTERNAL PUMPOUT/CLEANOUT CATEGORIES:

"B" 11 TOXICOLOGICAL INFORMATION Oral LD50 RAT: >2,000 mg/kg NOTE - Estimated value Dermal LD50 RABBIT: >2,000 mg/kg NOTE - Estimated value 12 ECOLOGICAL INFORMATION AQUATIC TOXICOLOGY Daphnia magna 48 Hour Static Screen No Effect Level= 2000 mg/L BIODEGRADATION No Data Available.

13 DISPOSAL CONSIDERATIONS If this undiluted product is discarded as a waste, the US RCRA hazardous waste identification number is Not applicable.

Please be advised; however, that state and local requirements for waste disposal may be more restrictive or otherwise different from federal regulations. Consult state and local regulations regarding the proper disposal of this material.

14 TRANSPORT INFORMATION

DOT HAZARD: Not Applicable UN / NA NUMBER: Not applicable DOT EMERGENCY RESPONSE GUIDE #: Not applicable 15 REGULATORY INFORMATION TSCA:

All components of this product are listed in the TSCA inventory.

CERCLA AND/OR SARA REPORTABLE QUANTITY (RQ):

No regulated constituent present at OSHA thresholds POTABLE WATER APPROVAL:

NSF certified. Maximum use 200 mg/L FOOD;AND DRUG ADMINISTRATION:

.21 CFR 176.170 (components of paper and paperboard in contact with aqueous and fatty foods)

SARA SECTION 312 HAZARD CLASS:

Immediate(acute);Delayed(Chronic)

SARA SECTION 302 CHEMICALS:

No regulated constituent present at OSHA thresholds SARA SECTION 313 CHEMICALS:

No regulated constituent present at OSHA thresholds CALIFORNIA REGULATORY INFORMATION CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT (PROPOSITION 65) CHEMICALS PRESENT:

This product contains these chemicals known to the state of California to cause cancer or reproductive toxicity:

CAS# CHEMICAL NAME 14808-60-7 RESPIRABLE QUARTZ (CRYSTALLINE SILICA)

MICHIGAN REGULATORY INFORMATION No regulated constituent present at OSHA thresholds 16 OTHER INFORMATION NFPA/HMIS CODE TRANSLATION Health 0 Minimal Hazard Fire 0 Minimal Hazard Reactivity 0 Minimal Hazard Special NONE No special Hazard (1) Protective Equipment A Safety Glasses (1) refer to section 8 of MSDS for additional protective equipment recommendations.

CHANGE LOG EFFECTIVE DATE REVISIONS TO SECTION: SUPERCEDES MSDS status: 21-JUL-1997 ** NEW **

15-JAN-1998 15 21-JUL-1997 18-MAY-1998 15 15-JAN-1998 19-MAR-2001 4 18-MAY-1998 17-MAY-2001 8 19-MAR-2001 16-JAN-2002 15 17-MAY-2001

Spectrus TM DT1404 Detoxifying Agent Halogen Neutralizer

Reduces or eliminates residual halogens TREATMENT AND FEEDING REQUIREMENTS

Assists in compliance of NPDES halogen dis- Dosage - Feed 5 mg/L of GE Betz DT1404 for every charge limitations 1 mg/L of residual halogen. This feed rate is constant over a pH range of 6.0 to 9.0.

Ammonia free Feed point - GE Betz DT1404 should be fed to a point

Cost effective in the system where it will be rapidly mixed with the bulk water or discharge. The detoxification reaction is

Neutralizes a number of non-oxidizers almost instantaneous.

DESCRIPTION AND USE Dilution - GE Betz DT1404 should be fed neat.

GE Betz DT1404 is an aqueous product designed to Feed Equipment - Tanks, pumps, piping, and valves detoxify residual halogens as well as certain non-oxi- should be made of polyethylene, polypropylene or dizing biocides in once-through, open recirculating PVC. Mild steel and stainless steel are not acceptable cooling systems, and plant effluents. GE Betz for use with this product.

DT1404 reacts more rapidly with halogens and non-oxidizing biocides than with oxygen. GE Betz DT1404 SAFETY PRECAUTIONS is a reducing agent that does not contribute ammonia A Material Safety Data Sheet containing detailed infor-to the effluent water system. By minimizing residual mation about this product is available upon request.

halogens, GE Betz DT1404 can assist in complying with NPDES discharge regulations. PACKAGING INFORMATION TYPICAL APPLICATION GE Betz DT1404 is available in a wide variety of cus-tomized containers and delivery methods. Contact Many systems control microbiological growth by main- your GE Betz representative for details.

taining a free or total halogen residual. As a result of increasing environmental concerns and regulations regarding the toxicity of residual oxidants in effluent water, more active methods must be taken to reduce discharge of these compounds. Dehalogenation is often necessary to remove residual oxidants before discharging into a sensitive environment where halo-gens pose a danger to aquatic species. DT1404 reduces or eliminates residual halogen levels in effluent waters.

GE Water.& Process Technologies Material Safety Data Sheet .Issue Date: 12-FEB-2009

-a DSupercedes: 10-DEC-2007 SPECTRUS CT1 300 1 Identification Identification of substance or preparation SPECTRUS CT1300 Product Application Area Water-based microbial control agent.

Company/Undertaking Identification GE Betz, Inc.

4636 Somerton Road Trevose, PA 19053 T 215 355-3300, F 215 953 5524 Emergency Telephone (800) 877-1940 Prepared by Product Stewardship Group: T 215-355-3300 Prepared on: 12-FEB-2009 2 Hazard(s) identification EMERGENCY OVERVIEW DANGER Corrosive to skin. Potential skin sensitizer. Corrosive to the eyes. Vapors, gases, mists and/or aerosols may cause irritation to upper respiratory tract.

DOT hazard: Corrosive to skin, Flammable Odor: Mild; Appearance: Colorless To Yellow, Liquid Fire fighters should wear positive pressure self-contained breathing apparatus(full face-piece type). Proper fire-extinguishing media:

dry chemical, carbon dioxide or foam--Avoid water if possible.

POTENTIAL HEALTH EFFECTS ACUTE SKIN EFFECTS:

Primary route of exposure; Corrosive to skin. Potential skin sensitizer.

ACUTE EYE EFFECTS:

Corrosive to the eyes.

ACUTE RESPIRATORY EFFECTS:

Vapors, gases, mists and/or aerosols may cause irritation to upper.

Substance or Preparation: SPECTRUS CT1 300 Page 1

respiratory tract.

INGESTION EFFECTS:

Toxic; May cause severe irritation or burning of mouth, throat, and gastrointestinal tract with severe chest and abdominal pain, nausea, vomiting, diarrhea, lethargy and collapse. Possible death when ingested in very large doses.

TARGET ORGANS:

Prolonged or repeated exposures may cause CNS depression, tissue narcoses, skin sensitization, and/or toxicity to the liver and kidney.

MEDICAL CONDITIONS AGGRAVATED:

Not known.

SYMPTOMS OF EXPOSURE:

Inhalation of vapors/mists/aerosols may cause eye, nose, throat and lung irritation. Skin contact may cause severe irritation or burns.

3 Composition / information on ingredients Information for specific product ingredients as required by the U.S. OSHA HAZARD COMMUNICATION STANDARD is listed. Refer to additional sections of this MSDS for our assessment of the potential hazards of this formulation.

HAZARDOUS INGREDIENTS:

Cas# Chemical Name Range(w/w%)

68424-85-1 (C12-16)ALKYL DIMETHYL BENZYL AMMONIUM CHLORIDE 40-70 Corrosive (eyes and skin);toxic (by ingestion) 64-17-5 ETHYL ALCOHOL 7-13 Flammable liquid; irritant (eyes); may cause CNS depression; potential liver, kidney, brain, heart and male reproductive toxin; produced mutagenic effects in germ cells and somatic cells (in vivo) 4 First-aid measures SKIN CONTACT:

URGENT! Wash thoroughly with soap and water. Remove contaminated clothing. Get immediate medical attention. Thoroughly wash clothing before reuse.

EYE CONTACT:

URGENT! Immediately flush eyes with plenty of low-pressure water for at least 20 minutes while removing contact lenses. Hold eyelids apart. Get immediate medical attention.

INHALATION:

Remove to fresh air. If breathing is difficult, give oxygen. If breathing has stopped, give artificial respiration. Get immediate medical attention.

INGESTION:

Do not feed anything by mouth to an unconscious or convulsive Substance or Preparation: SPECTRUS CT1300 Page 2

victim. Dilute contents of stomach. Induce vomiting by one of the standard methods. Immediately contact a physician.

NOTES TO PHYSICIANS:

Material is corrosive. It may not be advisable to induce vomiting.

Possible mucosal damage may contraindicate the use of gastric lavage.

5 Fire-fighting measures FIRE FIGHTING INSTRUCTIONS:

Fire fighters should wear positive pressure self-contained breathing apparatus (full face-piece type).

EXTINGUISHING MEDIA:

dry chemical, carbon dioxide or foam--Avoid water if possible.

HAZARDOUS DECOMPOSITION PRODUCTS:

oxides of carbon and nitrogen, hydrogen chloride FLASH POINT:

130F 54C P-M(CC)

MISCELLANEOUS:

Corrosive to skin, Flammable UN 2920;Emergency Response Guide #132 6 Accidental release measures PROTECTION AND SPILL CONTAINMENT:

Ventilate area. Use specified protective equipment. Contain and absorb on absorbent material. Place in waste disposal container.

Remove ignition sources. Flush area with water. Spread sand/grit.

DISPOSAL INSTRUCTIONS:

Water contaminated with this product may be sent to a sanitary sewer treatment facility,in accordance with any local agreement,a permitted waste treatment facility or discharged under a permit. Product as is - Dispose of in approved pesticide facility or according to label instructions.

7 Handling and storage HANDLING:

Combustible. Corrosive to skin and/or eyes.

STORAGE:

Keep containers closed when not in use. Keep away from flames or sparks. Bond containers during filling or discharge when performed at temperatures at or above the product flash point. Shelf life 360 days.

8 Exposure controls / personal protection EXPOSURE LIMITS CHEMICAL NAME (C12-16)ALKYL DIMETHYL BENZYL AMMONIUM CHLORIDE PEL (OSHA): NOT DETERMINED TLV (ACGIH) : NOT DETERMINED ETHYL ALCOHOL Substance or Preparation: SPECTRUS CT1300 Page 3

PEL (OSHA) : 1,000 PPM TLV (ACGIH): 1,000 PPM ENGINEERING CONTROLS:

Adequate ventilation to maintain air contaminants below exposure limits.

PERSONAL PROTECTIVE EQUIPMENT:

Use protective equipment in accordance with 29CFR 1910 Subpart I RESPIRATORY PROTECTION:

A RESPIRATORY PROTECTION PROGRAM THAT MEETS OSHA'S 29 CFR 1910.134 AND ANSI Z88.2 REQUIREMENTS MUST BE FOLLOWED WHENEVER WORKPLACE CONDITIONS WARRANT A RESPIRATOR'S USE.

USE AIR PURIFYING RESPIRATORS WITHIN USE LIMITATIONS ASSOCIATED WITH THE EQUIPMENT OR ELSE USE SUPPLIED AIR-RESPIRATORS.

If air-purifying respirator use is appropriate, use organic vapor cartridges and any of the following particulate respirators: N95, N99, NI00, R95, R99, R100, P95, P99 or P100.

SKIN PROTECTION:

gauntlet-type rubber, butyl or neoprene gloves, chemical resistant apron -- Wash off after each use. Replace as necessary.

EYE PROTECTION:

splash proof chemical goggles, face shield 9 Physical and chemical properties Specific Grav.(70F,21C) 0.965 Vapor Pressure (mmHG) 44.0 Freeze Point (F) -7 Vapor Density (air=l) < 1.00 Freeze Point (C) -22 Viscosity(cps 70F,21C) 73 % Solubility (water) 100.0 Odor Mild Appearance Col'orless To Yellow Physical State Liquid Flash Point P-M(C C) 130F 54C pH As Is (approx.) 8.9 Evaporation Rate (Ether=l) < 1.00 Percent VOC: ND NA = not applicable ND = not determined 10 Stability and reactivity CHEMICAL STABILITY:

Stable under normal storage conditions.

POSSIBILITY OF HAZARDOUS REACTIONS:

INCOMPATIBILITIES:

May react with strong oxidizers.

DECOMPOSITION PRODUCTS:

oxides of. carbon and nitrogen, hydrogen chloride 11 Toxicological information Substance or Preparation: SPECTRUS CT1300 Page 4

Oral LD50 RAT: 445 mg/kg Dermal LD50 RABBIT: >1,800 mg/kg Skin Sensitization G.PIG: - NEGATIVE NOTE - Active component was neither a photoallergen nor a skin sensitizer 12 Ecological information AQUATIC TOXICOLOGY Annelida(Lumbriculus variegatus) 96 Hour Acute Toxicity LC50= 1.47; LCI0= .37 mg/L Benthic Crustacean(Gammerus pseutolimnaeus) 96 Hour Acute Toxicity LC50= .07 mg/L Ceriodaphnia 48 Hour Static Renewal Bioassay LCS0= .35; No Effect Level= .15 mg/L Ceriodaphnia 7 Day Chronic Bioassay IC25 = .098 mg/L Channel Catfish 96 Hour Acute Toxicity LC50= .86; No Effect Level= .54 mg/L Daphnia magna 48 Hour Flow-Thru Bioassay LC50= .04; No Effect Level= .026 mg/L Daphnia magna 48 Hour Static Acute Bioassay LC50= .11; No Effect Level= .06 mg/L Daphnia pulex 48 Hour Static Renewal Bioassay LC50= .05; No Effect Level= .031 mg/L Fathead Minnow 7 Day Chronic Bioassay IC25 = .259 mg/L Fathead Minnow 96 Hour Flow-Thru Bioassay LC50= .72; No Effect Level= .41 mg/L Freshwater Snail(Physa sp.) 96 Hour Acute Toxicity LC50= .46; No Effect Level= .36 mg/L Menidia beryllina (Silversides) 96 Hour Flow-Thru Bioassay LC50= .62; No Effect Level= .35 mg/L Midge larvae (Chironomus tentans) 96 Hour Acute Toxicity LC50= .5; No Effect Level= .13 mg/L Mysid Shrimp 96 Hour Flow-Thru Bioassay LC50= .16; No Effect Level= .03 mg/L Rainbow Trout 96 Hour Flow-Thru Bioassay LC50= 2; No Effect Level= 1.2 mg/L Sheepshead Minnow 96 Hour Flow-Thru Bioassay LC50= 1.76; No Effect Level= I mg/L No Data Available.

BIODEGRADATION BOD-28 (mg/g): 156 BOD-5 (mg/g) : 43 COD (mg/g) : 1470 TOC (mg/g) : 380 13 Disposal considerations Substance or Preparation: SPECTRUS CT1 300 Page 5

If this undiluted product is discarded as a waste, the US RCRA hazardous waste identification number is Exempt D001 per 40 CFR 261.21(a) (1).

Please be advised; however, that state and local requirements for waste disposal may be more restrictive or otherwise different from federal regulations. Consult state and local regulations regarding the proper disposal of this material.

14 Transport information DOT HAZARD: Corrosive to skin, Flammable PROPER SHIPPING NAME: CORROSIVE LIQUIDS, FLAMMABLE, N.O.S. (QUATERNARY AMMONIUM COMPOUNDS, ETHYL ALCOHOL) 8(3), UN 2920, PG II DOT EMERGENCY RESPONSE GUIDE #: 132 Note: Some containers may be DOT exempt, please check BOL for exact container classification 15 Regulatory information TSCA:

This is an EPA registered biocide and is exempt from TSCA inventory requirements.

CERCLA AND/OR SARA REPORTABLE QUANTITY (RQ):

No regulated constituent present at OSHA thresholds FIFRA REGISTRATION NUMBER:

3876- 149 FOOD AND DRUG ADMINISTRATION:

21 CFR 176.300 (slimicides for wet end use)

When used in this specified application, all ingredients comprising this product are authorized by FDA for the manufacture of paper and paperboard that may contact aqueous and fatty foods as per 21 CFR 176.170(a) (4).

NSF Registered and/or meets USDA (according to 1998 Guidelines):

Registration number: Not Registered G5, G7 SARA SECTION 312 HAZARD CLASS:

Immediate(acute);Delayed(Chronic);Fire SARA SECTION 302 CHEMICALS:

No regulated constituent present at OSHA thresholds SARA SECTION 313 CHEMICALS:

No regulated constituent present at OSHA thresholds CALIFORNIA REGULATORY INFORMATION CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT (PROPOSITION 65):

No regulated constituents present MICHIGAN REGULATORY INFORMATION No regulated constituent present at OSHA thresholds 16 Other information Substance or Preparation: SPECTRUS CT1 300 Page 6

HMIS vii CODE TRANSLATION Health 3 Serious Hazard Fire 2 Moderate Hazard Reactivity 0 Minimal Hazard Special CORR DOT corrosive (1) Protective Equipment D Goggles,Face Shield,Gloves,Apron (1) refer to section 8 of MSDS for additional protective equipment recommendations.

CHANGE LOG EFFECTIVE DATE REVISIONS TO SECTION: SUPERCEDES MSDS status: 18-NOV-1997 ** NEW **

27-FEB-1998 15 18-NOV-1997 15-MAY-1998 2 27-FEB-1998 20-MAY-1998 11 15-MAY-1998 17-AUG-1998 15 20-MAY-1998 27-OCT-1998 ;EDIT:9 17-AUG-1998 12-NOV-1998 ;EDIT: 9 27-OCT-1998 03-MAY-2000 12 12-NOV-1998 05-JUL-2001 12 03-MAY-2000 24-SEP-2001 3,4,5,7,8,14,16 05-JUL-2001 16-NOV-2001 12 24-SEP-2001 30-DEC-2005 13;EDIT:15 16-NOV-2001 19-DEC-2006 13;EDIT:15 30-DEC-2005 05-APR-2007 2 19-DEC-2006 10-DEC-2007 5,7,8,10 05-APR-2007 12-FEB-2009 12 10-DEC-2007 Substance or Preparation: SPECTRUS CT1 300 Page 7

a Water & Process Technologies bSp ec tr u s* CT13%'90 0 Mollusk Control Agent

Controls common fouling mollusks at all life stages using brief (6 to 24 hr) seasonal applica-tions

Effective on all types of fresh and salt water clams, mussels, and oysters

" Can be rapidly detoxified and is readily biode-gradable

Field test methods available for determining product concentrations Description and Use Spectrus* CT1300 is an environmentally friendly, bio-control agent that can be used to control mol- Figure 1: Zebra Mussel Accumulation after 3 Months in a 6-in.

lusks in a variety of industrial, water-based systems. (15.2 cm) Diameter Discharge Line.

Spectrus CT1300 can also be used for control of algae, bacteria, and fungal slimes in these same Control of macrofouling organisms such as mol-water systems. Spectrus CT1300 is concentrated. It lusks is needed to prevent blocked water lines and contains 50% of quaternary ammonium hydrochlo-damaged equipment. Uncontrolled growth of mac-ride IQuat) as active ingredient. rofouling organisms can lead to higher mainte-Spectrus CT1300, applied in brief (6 to 24 hr) sea- nance and production costs, reduced plant safety, sonal applications, is effective against all mollusks and even plant outages. Therefore, an effective at all life stages. Spectrus CT1300 is effective macrofouling control is necessary for operating against adult organisms and will prevent immature units to achieve profitability goals. More impor-forms from growing to a fouling size. tantly, effective macrofouling control is essential to ensure availability of fire protection systems and Spectrus CT1300 is EPA-approved for use in recircu- other safety-related equipment.

lating cooling systems, heat exchange systems, and evaporative condensers. This product is also ap- Environmental Benefits proved for use in once-through cooling systems, service water, auxiliary water, and fire protection The active ingredient in Spectrus CT1300 (QuatI is systems, as well as influent and wastewater sys- short-lived in the environment. Quats are cationic tems. See the Spectrus CT1300 product label for a and rapidly adsorbed by natural, anionic substrates complete listing of approved end-uses. and sediments. Adsorption effectively detoxifies Quats and renders them harmless to aquatic and benthic organisms as well as microbes.

Find a contact near you by Global Headquarters Americas Europe/Middle East/Africa Asia/Pacific visiting www.ge.com/water or Trevose, PA Watertown, MA Heverlee, Belgium Shanghai, Chino e-mailing custhelp@ge.com. +1-215-355-3300 +1-617-926-2500 +32-16-40-20-00 +86 (0)411-8366-6489 02008, General Electric Company. Allrights reserved. pfc728.doc Apr-08

Trademark of General Electric Company. may be registered in one or more countries.

Spectrus CT1300 can be deliberately detoxified by General Properties use of highly adsorbent, anionic materials such as those found in Spectrus DT1400 or DT1401. These Physical properties of Spectrus CT1300 are shown products may be used where natural adsorption is on the Material Safety Data Sheet, a copy of which not adequate to comply with water quality criteria. is available on request.

Once adsorbed, Quats are readily biodegraded to carbon dioxide and water. Packaging Information Because* Spectrus CT1300 provides macrofouling Spectrus CT1300 is a liquid and is available in a control in just a few hours, it reduces chemical con- wide variety of containers and delivery methods, sumption, environmental impact and treatment including GE's ChemSure* Drumless Delivery Ser-costs compared to halogen-based macrofouling vices treatments. When halogens are used for mollusk control, they must be applied continuously for sev- Storage eral weeks if they are to be effective, and they must be dehalogenated. In addition, continuous feed of Protect from extreme temperatures. Protect from halogens promotes formation of undesirable by- freezing. Keep containers closed when not in use.

products such as triholomethanes (THMs), total or- Keep away from flames or sparks.

ganic halides (TOX), and adsorbable halogenated organics (AOX). Since Spectrus CT1300 is not an oxi- Safety Precautions dizer, it does not produce these compounds.

Use of eye protection (goggles and face shield) and Treatment and Feeding Requirements gauntlet-type neoprene gloves is required when handling this product. See section 7 of the MSDS for Correct treatment levels and frequency of Spectrus additional information on recommended personal CT1300 addition depend on many factors. These protective equipment.

include, but are not limited to, degree of infestation, type of mollusk, temperature, system retention time, General Information and discharge environment. Heavy infestations of mollusks should be physically removed by vacuum- EPA Registration Number .............. 3876-149 ing, dredging, or scraping prior to treatment. Con-sult your GE representative for technical advice on Purchase of Spectrus CT1300 from GE includes a your specific application. license to practice the process covered by U.S. Pat-ent 4,857,209.

Feed point - Apply Spectrus CT1300 to a point in the system where turbulence and flow patterns assure good mixing with the water being treated.

Dilution - This product is best fed neat (undiluted) from the storage container.

Feed Equipment - Spectrus CT1300 is compatible with the following materials of construction: Hastal-lay 825; High Density Cross-linked Polyethylene; Tef-lon; PVC; Neoprene; Buna N; Buna S; Litharge Viton; Ethylene Propylene Resin; Hypalon. (Teflon and Vi-ton are registered trademarks of DuPont.)

Avoid use of: 304 and 316 Stainless Steels (espe-cially in thin walled feed lines); High Density Poly-propylene; Linear High Density Polyethylene; Nylon.

This product may be fed using the PaceSetter* con-trol system.

Page 2 Spectrus CT1300 Fact Sheet

GE Water & Process Technologies Issue Date: 01-MAY-2007 Material Safety Data Sheet Supercedes: 01-MAY-2007 SPECTRUS NX1 104 1 Identification Identification of substance or preparation SPECTRUS NX1 104 Product Application Area Water-based microbial control agent.

Company/Undertaking Identification GE Betz, Inc.

4636 Somerton Road Trevose, PA 19053 T 215 355-3300, F 215 953 5524 Emergency Telephone (800) 877-1940 Prepared by Product Stewardship Group: T 215-355-3300 Prepared on: 01 -MAY-2007 2 Hazard(s) identification EMERGENCY OVERVIEW DANGER Corrosive to skin. Corrosive to the eyes. Vapors, gases, mists and/or aerosols cause irritation to the upper respiratory tract.

DOT hazard: Corrosive to skin, Combustible Odor: Mild; Appearance: Colorless To Yellow, Liquid Fire fighters should wear positive pressure self-contained breathing apparatus(full face-piece type). Proper fire-extinguishing media:

dry chemical, carbon dioxide, foam or water POTENTIAL HEALTH EFFECTS ACUTE SKIN EFFECTS:

Primary route of exposure; Corrosive to skin.

ACUTE EYE EFFECTS:

Corrosive to the eyes.

ACUTE RESPIRATORY EFFECTS:

Vapors, gases, mists and/or aerosols cause irritation to the upper respiratory tract.

Substance or Preparation: SPECTRUS NX1 104 Page 1

INGESTION EFFECTS:

May cause severe irritation or burning of mouth, throat, and gastrointestinal tract with severe chest and abdominal pain, nausea, vomiting, diarrhea, lethargy and collapse. Possible death when ingested in very large doses.

TARGET ORGANS:

Prolonged or repeated exposures may cause CNS depression, primary irritant dermatitis, skin sensitization, tissue necrosis, and/or toxicity to the liver and kidney.

MEDICAL CONDITIONS AGGRAVATED:

Pre-existing skin disorders.

SYMPTOMS OF EXPOSURE:

Inhalation of vapors/mists/aerosols may cause eye, nose, throat and lung irritation. Skin contact may cause severe irritation or burns.

3 Composition / information on ingredients Information for specific product ingredients as required by the U.S. OSHA HAZARD COMMUNICATION STANDARD is listed. Refer to additional sections of this MSDS for our assessment of the potential hazards of this formulation.

HAZARDOUS INGREDIENTS:

Cas# Chemical Name Range(w/w%)

68424-85-1 (CI2-16)ALKYL DIMETHYL BENZYL AMMONIUM CHLORIDE 7-13 Corrosive (eyes and skin);toxic (by ingestion) 13590-97-1 DODECYLGUANIDINE HYDROCHLORIDE (DGH) 3-7 Corrosive 67-63-0 ISOPROPYL ALCOHOL 1-5 Flammable liquid; chronic overexposure may cause liver and kidney toxicity 64-17-5 ETHYL ALCOHOL 1-5 Flammable liquid; irritant (eyes); may cause CNS depression; potential liver, kidney, brain, heart and male reproductive toxin; produced mutagenic effects in germ cells and somatic cells (in vivo) 4 First-aid measures SKIN CONTACT:

URGENT! Wash thoroughly with soap and water. Remove contaminated clothing. Get immediate medical attention. Thoroughly wash clothing before reuse.

EYE CONTACT:

URGENT! Immediately flush eyes with plenty of low-pressure water for at least 20 minutes while removing contact lenses. Hold eyelids apart. Get immediate medical attention.

INHALATION:

If nasal, throat or lung irritation develops - remove to fresh air and get medical attention.

Substance or Preparation: SPECTRUS NX1 104 Page 2

INGESTION:

Do not feed anything by mouth to an unconscious or convulsive victim. Do not induce vomiting. Immediately contact physician.

Dilute contents of stomach using 3-4 glasses milk or water.

NOTES TO PHYSICIANS:

Material is corrosive. It may not be advisable to induce vomiting.

Possible mucosal damage may contraindicate the use of gastric lavage.

5 Fire-fighting measures FIRE FIGHTING INSTRUCTIONS:

Fire fighters should wear positive pressure self-contained breathing apparatus (full face-piece type).

EXTINGUISHING MEDIA:

dry chemical, carbon dioxide, foam or water HAZARDOUS DECOMPOSITION PRODUCTS:

oxides of carbon and nitrogen, hydrogen chloride, ammonia and volatile amines FLASH POINT:

150F 66C P-M(CC)

MISCELLANEOUS:

Corrosive to skin, Combustible UN 3265;Emergency Response Guide #153 6 Accidental release measures PROTECTION AND SPILL CONTAINMENT:

Ventilate area. Use specified protective equipment. Contain and absorb on absorbent material. Place in waste disposal container.

Remove ignition sources. Flush area with water. Spread sand/grit.

DISPOSAL INSTRUCTIONS:

Water contaminated with this product may be sent to a sanitary sewer treatment facility,in accordance with any local agreement,a permitted waste treatment facility or'discharged under a permit. Product as is - Dispose of in approved pesticide facility or according to label instructions.

7 Handling and storage HANDLING:

Combustible. Do not use around sparks or flames. Bond containers during filling or discharge when performed at temperatures at or above the product flash point.

STORAGE:

Keep containers closed when not in use. Keep away from flames or sparks. Bond containers during filling or discharge when performed at temperatures at or above the product flash point. Shelf life 270 days.

8 Exposure controls / personal protection EXPOSURE LIMITS CHEMICAL NAME Substance or Preparation: SPECTRUS NX1 104 Page 3

(Cl2-16)ALKYL DIMETHYL BENZYL AMMONIUM CHLORIDE PEL (OSHA): NOT DETERMINED TLV (ACGIH): NOT DETERMINED DODECYLGUANIDINE HYDROCHLORIDE (DGH)

PEL (OSHA): NOT DETERMINED TLV (ACGIH) : NOT DETERMINED ISOPROPYL ALCOHOL PEL (OSHA) : 400 PPM(500PPM-STEL)

TLV (ACGIH): 200 PPM(400PPM-STEL)

ETHYL ALCOHOL PEL (OSHA): 1,000 PPM TLV (ACGIH): 1,000 PPM ENGINEERING CONTROLS:

Adequate ventilation to maintain air contaminants below exposure limits.

PERSONAL PROTECTIVE EQUIPMENT:

Use protective equipment in accordance with 29CFR 1910 Subpart I RESPIRATORY PROTECTION:

A RESPIRATORY PROTECTION PROGRAM THAT MEETS OSHA'S 29 CFR 1910.134 AND ANSI Z88.2 'REQUIREMENTS MUST BE FOLLOWED WHENEVER WORKPLACE CONDITIONS WARRANT A RESPIRATOR'S USE.

USE AIR PURIFYING RESPIRATORS WITHIN USE LIMITATIONS ASSOCIATED WITH THE EQUIPMENT OR ELSE USE SUPPLIED AIR-RESPIRATORS.

If air-purifying respirator use is appropriate, use a respirator with organic vapor cartridges and dust/mist prefilters.

SKIN PROTECTION:

gauntlet-type butyl or rubber gloves, chemical resistant apron-- Wash off after each use. Replace as necessary.

EYE PROTECTION:

splash proof chemical goggles, face shield 9 Physical and chemical properties Specific Grav.(70F,21C) 0.989 Vapor Pressure (mmHG) - 18.0 Freeze Point (F) 28 Vapor Density (air=l) < 1.00 Freeze Point (C) -2 Viscosity(cps 70F,21C) 25 % Solubility (water) 100.0 Odor Mild Appearance Colorless To Yellow Physical State Liquid Flash Point P-M(CC) 150F 65C pH As Is (approx.) 3.4 Evaporation Rate (Ether=l) < 1.00 Percent VOC: 4.3 NA = not applicable ND = not determined 10 Stability and reactivity Substance or Preparation: SPECTRUS NX1 104 Page 4

STABILITY:

Stable under normal storage conditions.

HAZARDOUS POLYMERIZATION:

will not occur.

INCOMPATIBILITIES:

May react with strong oxidizers.

DECOMPOSITION PRODUCTS:

oxides of carbon and nitrogen, hydrogen chloride, ammonia and volatile amines 11 Toxicological information Oral LD50 RAT: >1,000 mg/kg NOTE - Estimated value Dermal LD50 RABBIT: >2,000 mg/kg NOTE - Estimated value 12 Ecological information AQUATIC TOXICOLOGY Daphnia magna 48 Hour Static Renewal Bioassay LCS0= .16; No Effect Level= .1 mg/L Fathead Minnow 96 Hour Static Renewal Bioassay LC50= 2.9; No Effect Level= 1 mg/L BIODEGRADATION BOD-28 (mg/g) : 24 BOD-5 (mg/g): 9 COD (mg/g): 482 TOC (mg/g) : 103 13 Disposal considerations If this undiluted product is discarded as a waste, the US RCRA hazardous waste identification number is Not applicable.

Please be advised; however, that state and local requirements for waste disposal may be more restrictive or otherwise different from federal regulations. Consult state and local regulations regarding the proper disposal of this material.

14 Transport information DOT HAZARD: Corrosive to skin, Combustible PROPER SHIPPING NAME: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S.(DODECYLGUANIDINE HYDROCHLORIDE) 8, UN 3265, PG II DOT EMERGENCY RESPONSE GUIDE #: 153 Note: Some containers may be DOT exempt, please check BOL for exact container classification 15 Regulatory information Substance or Preparation: SPECTRUS NX1 104 Page 5

TSCA:

This is an EPA registered biocide and is exempt from TSCA inventory requirements.

CERCLA AND/OR SARA REPORTABLE QUANTITY (RQ):

No regulated constituent present at OSHA thresholds FIFRA REGISTRATION NUMBER:

3876- 145 FOOD AND DRUG ADMINISTRATION:

The ingredients in this product are approved by FDA under 21 CFR 176.300.

NSF Registered and/or meets USDA (according to 1998 Guidelines):

Registration number: 141061 Category Code(s):

G5 Cooling and retort water treatment products - all food processing areas G7 Boiler treatment products - all food processing areas/nonfood contact SARA SECTION 312 HAZARD CLASS:

Immediate(acute);Delayed(Chronic);Fire SARA SECTION 302 CHEMICALS:

No regulated constituent present at OSHA thresholds SARA SECTION 313 CHEMICALS:

No regulated constituent present at OSHA thresholds CALIFORNIA REGULATORY INFORMATION CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT (PROPOSITION 65):

This product contains one or more ingredients at trace levels known to the state of California to cause cancer and reproductive toxicity.

MICHIGAN REGULATORY INFORMATION No regulated constituent present at OSHA thresholds 16 Other information HMIS vII CODE TRANSLATION Health 3 Serious Hazard Fire 2 Moderate Hazard Reactivity 0 Minimal Hazard Special CORR DOT corrosive (1) Protective Equipment D Goggles,Face Shield,Gloves,Apron (1) refer to section 8 of MSDS for additional protective equipment recommendations.

CHANGE LOG EFFECTIVE DATE REVISIONS TO SECTION: SUPERCEDES MSDS status: 16-OCT-1997 ** NEW **

02-DEC-1997 15 16-OCT-1997 15-MAY-1998 02-DEC-1997 Substance or Preparation: SPECTRUS NX1 104 Page 6

19-MAY-1998 15 15-MAY-1998 05-APR-2007 2 19-MAY-1998 01-MAY-2007 4,5,7,8,10,15 05-APR--2007 Substance or Preparation: SPECTRUS NX1 104 Page 7

BENTONITE PERFORMANCE MINERALS MATERIAL SAFETY DATA SHEET NATIONAL Bentonite Revision Date: February 25, 2002

11. PRODUCT COMPANY AND IDENTITIFICATION Product Trade Name: NATIONAL Bentonite Generic

Description:

Wyoming Bentonite, Sodium montmorillonite CAS4 1302-78-9 Supplier: Bentonite Performance Minerals 410 17" Street, Suite 405 Denver, Colorado 80202-4447 Telephone: (303) 571-8240 Fax Number: (303) 571-8280 Chemtrec Emergency Number: (800) 424-9300

12. COMPOS1TION/INFORMATION ON THE COMPONENTS MATERIAL OR COMPONENT ACGIIH-TLV-TWA OSHA PEL-TWA Wyoming Bentonite, Sodium Montmorillonite (60-100%) CAS # 1302-78-9 not applicable not applicable Crystalline Silica Quartz (1-5%) CAS#14808-60-7 0.05 mg/n? (I Omg/n)/(%SiO2 +2)

Cristobalite (0-1%) CASh 14464-46-1 0.05 mg/rn 1/2x(l0mg/a)/(%Si0,+2)

Tridymite (0-1%) CAS# 15468-32-3 0.05 mg/ l/12x(1 0mg/rn)/(%Si0,+2)

More restrictive exposure limits may be enforced by some states, agencies, or other authorities.

3. HAZARD IDENTIFICATION Hazard Overview: CAUTION! - ACUTE HEALTH HAZARD May cause eye and respiratory irritation DANGER! - CHRONIC HEALTH HAZARD Breathing crystalline silica can cause lung disease, including silicosis and lung cancer. Crystalline silica has also been associated with scleroderma and kidney disease.

This product contains quartz, cristobalite and tridymite which may become airborne without a visible cloud.

Avoid breathing dust. Avoid creating dusty conditions. Use only with adequate ventilation to keep exposures below recommended exposure limits. Wear a NIOSH specified, European Standard EN 149, or equivalent respirator when using this product. Reviev the Material Safety Data Sheet (MSDS) for this product, which has been provided to your employer.

4. FIRST AID MEASURES Inhalation If inhaled, remove from area to fresh air. Get medical attention if respiratoly irritation develops or if breathing becomes difficult.

MSDS NATIONAL 2-25-02 PAGE 1 OF 7 PREPARED BY: Bentonite Performance Minerals; Denver, Colorado

BENTONITE PERFORMANCE MINERALS MATERIAL SAFETY DATA SHEET NATIONAL Bentonite Revision Date: February 25, 2002 Skin Wash with soap and water. Get medical attention if irritation persists.

Eyes In case of contact, immediately flush eyes with plenty of water for at least 15 minutes and get medical attention if irritation persists.

Ingestion Under normal conditions, first aid procedures are not required.

Notes to Physicians Treat symptomatically.

5. FIRE FIGHTING MEASURES Flash Point/Range (F): Not determined Flash Point/Range (C): Not determined Flash Point Method: Not determined Autoignition Temperature (F): Not determined Autoignition Temperature (C): Not determined Flammability Limits in Air-Lower (%): Not determined Flammability Limits in Air-Upper ("X,): Not determined Fire Extinguishing Media All standard firefighting media.

Special Exposure Hazards Not applicable.

Special Protective Equipment for Fire-Fighters Not applicable NFPA Ratings: Health 0, Flammability 0, Reactivity 0 HMIS Ratings: Flammability 0, Reactivity 0, Health 0*

6. ACCIDENTAL RELEASE MEASURES Personal Precautionary Measures: Use appropriate protective equipment. Avoid creating and breathing dust.

Environmental Precautionary Measures: None known.

Procedure for Cleaning/Absorption Collect using dustless method and hold for appropriate disposal. Consider possible toxic or fire hazards associated with contaminating substances and use appropriate methods for collection, storage and disposal.

7. HANDLING AND STORAGE Handling Precautions This product contains quartz, cristobalite and tridymite, which may become airborne without a visible dust cloud. Avoid breathing dust. Avoid creating dusty conditions. Use only with adequate ventilation to keep exposure below recommended exposure limits. Wear a NIOSH specified, European Standard EN 149, or equivalent respirator when using this product. Material is slippery when wet.

MSDS NATIONAL 2-25-02 PAGE 2 OF 7 PREPARED BY: Bentonite Performance Minerals; Denver, Colorado

BENTONITE PERFORMANCE MINERALS MATERIAL SAFETY DATA SHEET NATIONAL Bentonite Revision Date: February 25, 2002 Storage Infornmation Use good housekeeping in storage and work areas to prevent accumulation of dust. Clo;E container when not in use. Do not reuse empty container.

8. EXPOSURE CONTROLS/PERSONAL PROTECTION Engineering Controls Use approved industrial ventilation and local exhaust as required to maintain exposures below applicable exposure limits listed in Section 2.

Respiratory Protection Wear a NIOSH specified, European Standard EN 149, or equivalent respirator when using this product.

Hand Protection Normal work 0loves.

Skin Protection Wear clothing appropriate for the work environment. Dusty clothing should be laundered bcforc reuse.

Use precautionary measures to avoid creating dust when removing or laundering clothes.

Eye Protection Wear safety glasses or goggles to protect against exposure.

N Other Precautions None known

9. PHYSICAL AND CHEMICAL PROPERTIES Physical State Solid Color various Odor Odorless pH 8 to 10 in 6% slurry Specific Gravity (1120 = 1) 2.65 Density at 20C (lb/gallon) Not determined Bulk Density at 20 C (lb/gal)(uncomipacted) 50-70 lb/ft3 Boiling Point/Range (F): Not determined Boiling Point/Range (C): Not determined Freezing Point/Range (F): Not determined Freezing Point/Range (C): Not determined Vapor Pressure at 20C (mm Hg) Not determined Vapor Density (Air = 1) Not determined Percent Volatiles: Not determined Evaporation Rate (Butyl Acetate= l) Not determined Solubility in Water (g/100ml) Insoluble Solubility in Solvents (g/ml) Not determined Solubility is Sea Water (g/ml) Insoluble VOCs (lb/gallon) Not determined Viscosity, Dynamic at 20C (centipoise) Not determined Viscosity, Kinematic at 20C (centistoke) Not determined Partition Coefficient/n-Octanol/water Not determined Molecular weight (g/inole) Not determined MSDS NATIONAL 2-25-02 PAGE 3 OF 7 PREPARED BY: Bentonite Performance Minerals; Denver, Colorado

BENTONITE PERFORMANCE MINERALS MATERIAL SAFETY DATA SHEET NATIONAL Bentonite Revision Date: February 25, 2002

10. STABILITY AND REACTIVITY Stability Data: Stable Hazardous Polymerization Will not occur.

Conditions to Avoid None. anticipated Incompatibility (Materials to Avoid) Hydrofluoric acid Hazardous Decomposition Products Amorphous silica may traniislrrn at elevated temperatures to ciystallize to tridymite (870C) or cristobalite (I 470C).

Additional Guidelines Not applicable II1. TOXICOLOGICAL INFORMATION Principle Route of Exposure Eye or skin contact, inhalation.

Inhalation Inhaled crystalline silica in the form of quartz or cristobalite from occupational sources is carcinogenic to humans (IARC Group 1). There is sufficient evidence in experimental animals for the carcinogenicity of tridymite (IARC, Group 2A).

Breathing silica dust may cause irritation of the nose, throat, and respiratory passages. Breathing silica dust may not cause noticeable injury or illness even though permanent lung damage may be occurring. Inhalation of dust may also have serious chronic health effects (See "Chronic Effects/Carcinogenicity subsection below).

Skin Contact May cause mechanical skin irritation.

Eye Contact May cause eye irritation.

Ingestion None known.

Aggravated medical Conditions Individuals with respiratory disease, including but not limited to asthma and bronchitis, or subject to eye irritation, should not be exposed to quartz dust.

Chronic Effects/Carcinogenicity Silicosis: Excessive inhalation of respirable crystalline silica dust may cause a progressive, disabling and sometimes-fatal lung disease called silicosis. Symptoms include cough, shortness of breath, wheezing, non-specific chest illness and reduced pulhonary function.

This disease is exacerbated by smoking. Individuals with silicosis are predisposed to develop tuberculosis.

MSDIS NATIONAL 2-25-02 PAGE 4 OF 7 PREPARED BY: Bentonite Perfbrmance Minerals; Denver, Colorado

BENTONITE PERFORMANCE MINERALS MATERIAL SAFETY DATA SHEET NATIONAL Bentonite Revision Date: February 25, 2002 Cancer Status: The International; Agency for Research on Cancer (]ARC) has determined that crystalline silica inhaled in the form of '11, quartz or cristobalite from occu'ational sources can cause lung cancer in humans (Group I - carcinogenic to humans) and has determined that there is sufficient evidence in experimental animals for the carcinogenicity oftridymite (Group 2A -- possible carcinogen to humans).

Refer to IARC Monograph 68, Silica, Some Silicates and Organic Fibres (June 1997) in conjunction with the use of these minerals. The National Toxicology Program classifies respirable crystalline silica as "Known to be a human carcinogen". Refer to the 9"' Report on Carcinogens (2000). The American Conference of Governmental Industrial Hygienists (ACGIH-l) classifies crystalline silica, quartz, as a suspected human carcinogen (A2).

There is somrie evidence that breathing respirable crystalline silica or the disease silicosis is associated with an increased incidence of significant disease endpoints such as scleroderma (an immune system disorder manifested by scarring of the lungs, skin and other internal organs) and kidney disease.

Other Information: For further information consult "Adverse Effects of Crystalline Silica Exposure" published by the American Thoracic Society Medical Section of the American Lung Association, American Journal of Respiratory and Critical Care Medicine, Volume 155, pp 7 6 1-7 68 (1997).

Toxicity Tests Oral Toxicity: Not determined Dermal Toxicity: Not determined Inhalation Toxicity: Not determined Primary Irritation Effect: Not determined Carcinogenicity International Agency for Research on Cancer (IARC) Group I Carcinogen (Carcinogenic to Humans)

Genotoxicity: Not determined Repro ductive/Developmental Toxicity Not determined

12. ECOLOGICAL INFORMATION Mobility (Water/Air/Soil) Not determined Persistence/Degradability Not determined Bio-accumulation Not determined MSDS NATIONAL 2-25-02 PAGE 5 OF 7 PREPARED BY: Bentonite Performance Minerals; Denver, Colorado

BENTONITE PERFORMANCE MINERALS MATERIAL SAFETY DATA SHEET NATIONAL Bentonite Revision Date: February 25, 2002 Ecotoxicological Information Acute Fish Toxicity: TLM96: 10000 ppm (Oncorhynchus mykiss)

Acute Crustaceans Toxicity: Not determined Acute Algae Toxicity: Not determined Chemical Fate Information Not determined Other Information Not applicable

13. DISPOSAL Disposal Method Bury in a licensed landfill according to federal, state and local regulations.

Contaminated Packaging Follow all applicable national or local regulations.

14. TRANSPORTATION INFORMATION Land Transportation DOT Not restricted Canadian TDG Not restricted ADR Not restricted Air Transportation ICAO/IATA Not restricted Sea Transportation IMIDG Not restricted Other Shipping Information Labels: None

15. REGULATORY INFORAIATION US Regulations US TSCA Inventory All components are listed on inventory.

EPA SARA Title III Extremely Hazardous Substances Not applicable EPA SARA (311/312) Hazard Class Acute Health Hazard Chronic Health Hazard EPA SARA(313) Chemicals This product does not contain, a toxic chemical for routine annual "Toxic Chemical Release Reporting" under Section 313 (40 CFR 372).

EPA CERCLA/Superfund Reportable Spill Quantity For This Product Not applicable EPA RCRA Hazardous Waste Classification If product becomes a waste, it does NOT meet the criteria of a hazardous waste as defined by the US EPA.

MSDS NATIONAL 2-25-02 PAGE 6 OF 7 PREPARED BY: Bentonite Performance Minerals, Denver, Colorado

BENTONITE PERFORMANCE MINERALS MATERIAL SAFETY DATA SHEET NATIONAL Bentonite Revision Date: February 25, 2002 California Proposition 65 The California Proposition 65 regulations apply to this product.

MA Right-To-Know Law One or more components listed.

NJ Right-To-Know Law One or more components listed.

PA Right-To-Know Law One or more components listed.

Canadian Regulations Canadian DSL Inventory All components listed on inventory.

WIIMIS Hazard Class D2A Very Toxic Materials (crystalline silica)

16. OTHER INFORMATION Ahbreviations ': Registered Trademark of Halliburton Energy Services Inc.

TNM Trademark of Halliburton Energy Services Inc.

N/A: Denotes no applicable information found or available CAS#: Chemical Abstracts Service Number ACGIH: American Conference of Governmental Industrial Hygienists OSHA: Occupational Safety and Health Administration TLV: Threshold Limit Value PEL: Permissible Exposu-e Limit STEL: Short Term Exposure Limit NTP: National Toxicology Program IARC: International Agency for Research on Cancer R: Risk S: Safety LC50: Lethal Concentration 50%

LD50: Lethal Dose 50%

BOD: Biological Oxygen Demand KoC: Soil Organic Carbon Partition Coefficient This information is furnished without warranty, expressed or implied, as to accuracy or completeness. The information is obtained from various sources including the manufacturer and third party sources. This information may not be valid under all conditions nor if this material is used in combination with other materials or in any process. Final determination of suitability of any material is the sole responsibility of the user.

MSDS Data Revised: February 25, 2002 BENTONITE PERFORMANCE MINERALS 410 17th Street, Suite 405 Denver, CO 80202-4447 Telephone (303) 571-8240 Facsimile (303) 571-8280 MSDS NATIONAL 2-25-02 PAGE 7 OF 7 PREPARED BY: Bentonite Performance Minerals; Denver, Colorado

MATERIAL SAFETY DATA SHEET P4"NALCO PRODUCT SODIUM HYPOCHLORITE EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC

11. 1CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: SODIUM HYPOCHLORITE APPLICATION: INDUSTRIAL 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: 3/3 FLAMMABILITY: 0/0 INSTABILITY: 0/0 OTHER: OXY 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme

12. 1COMPOSITION/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 % (w/w)

Sodium Hypochlorite 7681-52-9 10.0- 30.0

13. 1HAZARDS IDENTIFICATION I

- EMERGENCY OVERVIEW**

DANGER Corrosive. May cause tissue damage. May cause sensitization by skin contact.

Do not get in eyes, on skin, on clothing. Do not take internally. Use with adequate ventilation. Keep container tightly closed and in a well-ventilated place. 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.

May evolve chlorine under fire conditions. Hypochlorous acid HCI PRIMARY ROUTES OF EXPOSURE:

Eye, Skin, Inhalation HUMAN HEALTH HAZARDS - ACUTE:

EYE CONTACT:

Corrosive. Will cause eye burns and permanent tissue damage.

SKIN CONTACT:

May cause severe irritation or tissue damage depending on the length of exposure and the type of first aid administered. Repeated or prolonged contact may cause skin sensitization.

Nalco Company 1601 W. Diehl Road - Naperville. Illinois 60563-1198 (630)305-1000 1/9

I MATERIAL SAFETY DATA SHEET PRODUCT SODIUM HYPOCHLORITE EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC INGESTION:

Corrosive; causes chemical burns to the mouth, throat and stomach. May cause nausea and vomiting. May cause diarrhea.

INHALATION:

Corrosive to respiratory system.

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. 1FIRST AID MEASURES EYE CONTACT:

PROMPT ACTION IS ESSENTIAL IN CASE OF 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. For a large splash, flood body under a shower.

Remove contaminated clothing. Wash off affected area immediately with plenty of water. Get immediate medical attention. Contaminated clothing, shoes, and leather goods must be discarded or cleaned before re-use.

INGESTION:

DO NOT INDUCE VOMITING. If conscious, washout mouth and give water to drink. Get immediate medical attention.

INHALATION:

Remove to fresh air, treat symptomatically. Get medical attention.

NOTE TO PHYSICIAN:

Probable mucosal damage may contraindicate the use of gastric lavage. Measures adainst circulatory shock, respiratory depression and convulsions may be needed.

15. 1 FIRE FIGHTING MEASURES FLASH POINT: Not flammable FLASH POINT: None EXTINGUISHING MEDIA:

Not expected to burn. Use extinguishing media appropriate for surrounding fire.

Nalco Company 1601 W. Diehl Road - Naperville. Illinois 60563-1198 (630)305-1000 2/9

M1VATERIAL SAFETY DATA SHEET RVP.N A L 0 PRODUCT SODIUM HYPOCHLORITE EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC FIRE AND EXPLOSION HAZARD:

May evolve chlorine under fire conditions. Hypochlorous acid HCI 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 I 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).

METHODS FOR CLEANING UP:

SMALL SPILLS: Flush to drain or sewer with excess water. 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.

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. Avoid generating aerosols and mists. Do not mix with acids. Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

STORAGE CONDITIONS:

Store in a cool well ventilated area away from direct sunlight. Store the containers tightly closed. Store separately from acids. Store in suitable labelled containers.

18. EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS:

ACGIH/TLV:

Substance(s)

Chlorine TWA: 0.5 ppm, 1.5 mg/m3 STEL: 1 ppm, 2.9 mg/m3 OSHA/PEL:

Substance(s)

Chlorine TWA: 0.5 ppm, 1.5 mg/m3 STEL: 1 ppm, 3 mg/m3 Nalco Company 1601 W. Diehl Road - Naperville, Illinois 60563-1198 (630)305-1000 3/9

MATERIAL SAFETY DATA SHEET A4NALCO PRODUCT SODIUM HYPOCHLORITE 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:

If significant mists, vapors or aerosols are generated an approved respirator is recommended. 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:

Neoprene gloves, Nitrile gloves, Butyl gloves 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. 1PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Yellow ODOR Chlorine SPECIFIC GRAVITY 1.168 - 1.268 @ 77 -F 25 °C SOLUBILITY IN WATER Complete pH (100 %) 11.3-13.3 FREEZING POINT / 0 0C BOILING POINT Decomposes VAPOR PRESSURE Same as water VAPOR DENSITY 1.3 (Air = 1)

Note: These physical properties are typical values for this product and are subject to change.

10. 1STABILITY AND REACTIVITY STABILITY:

Decomposes slowly.

Nalco Company 1601 W. Diehl Road - Naperville. Illinois 60563-1198 (630)305-1000 4/9

MATERIAL SAFETY DATA SHEET P4NALCO I PRODUCT SODIUM HYPOCHLORITE EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.

CONDITIONS TO AVOID:

Direct sunlight Sodium hypochlorite releases chlorine when heated above 95 degrees F. If this should occur, the drum should be properly vented. Protective equipment should be utilized to prevent eye and skin contact or exposures above the regulated level for chlorine gas.

Keep at temperature not exceeding 40 °C MATERIALS TO AVOID:

Contact with strong acids (e.g. sulfuric, phosphoric, nitric, hydrochloric, chromic, sulfonic) may generate heat, splattering or boiling and toxic vapors. Amines Organic materials and reducing agents Metals HAZARDOUS DECOMPOSITION PRODUCTS:

Under acidic conditions: Chlorine gas, Hypochlorous acid, HCI I'll. I TOXICOLOGICAL INFORMATION No toxicity studies have been conducted on this product.

ACUTE ORAL TOXICITY:

Species LD50 Test Descriptor Rat 5,000 mg/kg Similar Product Rating : Non-Hazardous 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).

12. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS:

The following results are for the product.

ACUTE FISH RESULTS:

Species Exposure LC50 Test Descriptor Rainbow Trout 96 hrs 1.94mg/I I Product Bluegill Sunfish 96 hrs 5.3 mg/I Product Rating : Toxic ACUTE INVERTEBRATE RESULTS:

Species l Exposure LC50 EC50 Test Descriptor Daphnia magna 48 hrs 1.57 mg/I Product Rating : Toxic Nalco Company 1601 W. Diehl Road - Naperville, Illinois 60563-1198 (630)305-1000 5/9

MATERIAL SAFETY DATA SHEET P4NALCO PRODUCT SODIUM HYPOCHLORITE EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC If released into the environment, see CERCLA/SUPERFUND in Section 15.

13. 1DISPOSAL 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.

LAND TRANSPORT:

Proper Shipping Name HYPOCHLORITE SOLUTION Technical Name(s):

UN/ID No: UN 1791 Hazard Class - Primary: 8 Packing Group : II Flash Point : Not flammable None DOT Reportable Quantity (per package): 800 lbs DOT RQ Component: SODIUM HYPOCHLORITE AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: HYPOCHLORITE SOLUTION Technical Name(s):

UN/ID No: UN 1791 Hazard Class - Primary: 8 Packing Group : II IATA Cargo Packing Instructions: 821 IATA Cargo Aircraft Limit: 60 L (Max net quantity per package)

MARINE TRANSPORT (IMDG/IMO):

Proper Shipping Name HYPOCHLORITE SOLUTION Technical Name(s):

UN/ID No: UN 1791 Nalco Company 1601 W. Diehl Road - Naperville, Illinois 60563-1198 (630)305-1000 6/9

MATERIAL SAFETY DATA SHEET P4"'NALCO i PRODUCT SODIUM HYPOCHLORITE EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC Hazard Class - Primary: 8 Packing Group II

15. REGULATORY 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 Hypochlorite: Corrosive, Oxidizer CERCLAJSUPERFUND, 40 CFR 117, 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 Hypochlorite 800 lbs 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 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 7/9

MATERIAL SAFETY DATA SHEET

'NALC0....

AV 1 05VA PRODUCT SODIUM HYPOCHLORITE 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 :

This product contains the following substances listed in the regulation:

Substance(s) Citations 0 Sodium Hypochlorite Sec. 311 CLEAN AIR ACT, Sec. 111 (40 CFR 60, Volatile Organic Compounds), Sec. 112 (40 CFR 61, Hazardous Air Pollutants), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances):

None of the substances are specifically listed in the regulation.

CALIFORNIA PROPOSITION 65:

This product does not contain substances which require warning under California Proposition 65.

MICHIGAN CRITICAL MATERIALS:

This product contains the following substances listed in the regulation:

Sodium Hypochlorite STATE RIGHT TO KNOW LAWS:

This product is a registered biocide and is exempt from State Right to Know Labelling Laws.

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:

E - Corrosive Material CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA):

The substances in this preparation are listed on the Domestic Substances List (DSL), are exempt, or have been reported in accordance with the New Substances Notification Regulations.

116. 1OTHER 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 8/9

MATERIAL SAFETY DATA SHEET P4NA LC (0J" SPRODUCT SODIUM HYPOCHLORITE 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# 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.

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: 02/28/2004 Version Number: 1.2 Nalco Company 1601 W. Diehl Road - Naperville. Illinois 60563-1198 (630)305-1000 9/9

ML091190175

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