ML14252A258

Tpdes Industrial Wastewater Permit Renewal Application (Permit No. WQ0001854000)

ML14252A258
Person / Time
Site:	Comanche Peak
Issue date:	09/02/2014
From:	Flores R Luminant Generation Co, Luminant Power
To:	Office of Nuclear Reactor Regulation, State of TX, Commission on Environmental Quality
Shared Package
ML14252A386	List: ML14252A247 ML14252A248 ML14252A250 ML14252A251 ML14252A258
References
TXX# 14110
Download: ML14252A258 (201)

Text

{{#Wiki_filter:Rafael Flores Luminant Power Executive Vice President P 0 Box 1002

                                                         & Chief Nuclear Officer         6322 North FM 56 Luminant                                                  Refael.flores@luminant.com      Glen Rose, Texas 76043 T 254.897.5550 C 817.559.0403 F 254.897.6652 Delivered Via FedEx TXX# 14110 September 2, 2014 Texas Commission on Environmental Quality Water Quality Division Applications Review and Processing Team (MC148) 12100 Park 35 Circle Austin, Texas 78753 Re:      Luminant Generation Company LLC Comanche Peak Nuclear Power Plant TPDES Industrial Wastewater Permit Renewal Application Permit No. WQ0001854000

Dear Sir/Madam:

In accordance with the rules and regulations of the Texas Commission on Environmental Quality (TCEQ), Luminant Generation Company LLC hereby submits one original and three complete copies of the Industrial Wastewater Permit Application for renewal of the above referenced TPDES Permit. A check for the required renewal fee of $2,015.00 was mailed on September 2, 2014 to the TCEQ Financial Administration Division (Attachment A). Luminant appreciates the opportunity to submit this permit renewal application. If there are any questions, please contact Ryan Bayle at 214-875-8294 or via e-mail at ryan.bayle@luminant.com. Sincerely, Rafael Flores By David P. Duncan, Director, Environmental Generation RMB Enclosures cc: US Nuclear Regulatory Commission, Document Control Desk, 11555 Rockville Pike, Rockville, MD 20852 Q c .

Luminant Luminant Generation Company LLC Comanche Peak Nuclear Power Plant TPDES Industrial Wastewater Permit Application Renewal Permit No. WQ0001854000 September 2014

TEXAS COMMISSION ON ENVIRONMENTAL QUALITY TCEQ INDUSTRIAL WASTEWATER PERMIT APPLICATION INDUSTRIAL ADMINISTRATIVE REPORT Submit this checklist with the application.Do not submit the instructionswith the application.Indicate if thefollowing are included in the application. Applicant Luminant Generation Company LLC Permit Number WQOOO1854000 WORKSHEET Y N WORKSHEET Y N Administrative Report 1.0 F7- Worksheet 7.0 [ T Administrative Report 1.1 - FT Worksheet 8.0 V- FT SPIT [ - Worksheet 9.0 7F T Technical Report 1.0 F-V 7- Worksheet 10.0 7 I Worksheet 1.o T 7 Original USGS Map F-T 7-- Worksheet 2.0 7- Affected Landowners Map 7 F-Worksheet 3.0 [ - Landowner Disk or Labels 7- 57 Worksheet 3.1 7 F- Copy of Application Fee Check F [7v Worksheet 3.2 7- F-- All fees owed TCEQ are paid F-T 7-Worksheet 3.3 7 F7 Flow Diagram 1 7-- Worksheet 4.0 F7- - Site Drawing FT 7-Worksheet 4.1 --- T Original Photographs 7.- F Worksheet 5.0 FT 7- Solids Management Plan 7 Worksheet 6.0 F [11 Water Balance FT 7 Please indicate by a check mark the amount submitted for the application fee: Major Amend. Minor (With or Renewal Amend. EPA Classification New Without Renewal) Only /Mod. Minor facility not subject to categorical standards $350 __ $350 $315 __ $150 promulgated by the EPA (40 CFR Part 400-471) Minor facility subject to categorical standards _ $1,250 _ $1250 ____$1215 __ $150 promulgated by the EPA (40 CFR Part 400-471) Major facility N/A* __ $2,050 $2,015 -$450

• All facilities are designated as minors until formally classified as a major by EPA.

For Commission Use Only: Segment Number: County: Expiration Date: Proposed/Current Permit Number: Region: TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 1 of 18

INDUSTRIAL ADMINISTRATIVE REPORT 1. o The following is requiredforall applications--Renewal,New, And Amendment Type of application: F7 New TPDES [F7 New TLAP 171 Major amendment with Renewal [F Major Amendment without Renewal UI Renewal of existing permit fl Stormwater only discharge Minor amendment to permit l Minor modification to permit If applying for an amendment to a permit, please describe the request in detail.

1. APPLICANT INFORMATION (Instructions, Page 18)

a. Facility Owner (Owner of the facility must apply for the permit.)

What is the Legal Name of the entity (applicant) applying for this permit? Luminant Generation Company LLC (The legal name must be spelled exactly as filed with the Texas Secretary of State, County, or in the legal documentforming the entity.) If the applicant is currently a customer with TCEQ, what is the Customer Number (CN)? Search for your CN at: http://wwwl2.tceq.texas.gov/crpub/index.cfm?fuseaction=cust.CustSearch CN 6032564 What is the name and title of the person signing the application? (The person must be an executive official meeting signatory requirements in TAC 305.43(a).) Prefix (Mr. Ms, Miss): Ms. First/Last Name: Kim Mereles Suffix: Title: Vice President Environmental Services Credential: What is the applicant's mailing address as recognized by the US Postal Service? You may verify the address at: http://zip4.usps.comlzip4/welcome.jsp Organization Name: Luminant Generation Company LLC Mailing Address: 1601 Bryan Street Internal Routing (Mail Code, Etc.): EP 27-100B City: Dallas State: TX ZIP Code: 75201 Mailing Information if outside USA Territory: Country Code: _Postal Code: Phone No.: (214) 875-8382 Extension: Fax No.: (214) 875-8699 E-mail Address: kimberly.mireles@luminant.com TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 2 of 18

Indicate the type of Customer: FE] Individual Dj Sole Proprietorship-D.B.A. FD1 Limited Partnership [ Corporation M Trust ] Estate [* Federal Government [ State Government El County Government 0 City Government [D Other Government [l Other:Limited Liability Company Independent entity M" Yes [:] No (If governmental entity, subsidiary,or partof a largercorporation) Number of Employees: 0-20; n] 21-100; 1- 101-250; E 251-500; or 501 or higher Customer Business Tax and Filing Numbers (Not applicable to individuals, governments, generalpartnershipsor sole proprietors.REQUIREDfor corporationsand limited partnerships) State Franchise Tax ID Number: 17529678207 TX SOS Charter (filing) Number: 800881216 Federal Tax ID: 75-2967820 DUNS Number (if known): 102247793

b. Co-Permittee information (complete only if the operator must be a co-permittee)

What is the Legal Name of the entity (operator) applying for this permit? Operator N/A (The legal name must be spelled exactly as filed with the Texas Secretary of State, County, or in the legal documentforming the entity.) If the operator is currently a customer with TCEQ, what is the Customer Number (CN)? Search for your CN at: http://www12.tceq.texas.gov/crpub/index.cfm?fuseaction=cust.CustSearch CN What is the name and title of the person signing the application? (The person must be an executive official meeting signatory requirements in TAC 305.43(a).) Prefix (Mr. Ms, Miss): First/Last Name: Suffix: Title: Credential: What is the applicant's mailing address as recognized by the US Postal Service? You may verify the address at: http:!/zip4.usps.com/zip4/welcome.jsp TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 3 of 18

I Organization Name: Mailing Address: Internal Routing (Mail Code, Etc.): City: Dallas State: TX ZIP Code: Mailing Information if outside USA Territory: Country Code: _Postal Code: Phone No.: Extension: Fax No.: E-mail Address: Indicate the type of Customer: [] Individual E] Sole Proprietorship-D.B.A. E1 Limited Partnership E] Corporation El Trust E] Estate El Federal Government rl State Government El County Government [] City Government [J Other Government Other: Independent entity El Yes [[ No (If governmental entity, subsidiary, orpart of a largercorporation) Number of Employees: R 0-20; -]21-100; D[ 101-250; 251-500; or 501 or higher Customer Business Tax and Filing Numbers (Not applicableto individuals, governments, generalpartnershipsor sole proprietors.REQUIREDfor corporationsand limited partnerships) State Franchise Tax ID Number: TX SOS Charter (filing) Number: Federal Tax ID: DUNS Number (if known): Provide a brief description of the need for a co-permittee: TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 4 of 18

c. Individual information (complete only if the facility owner or co-permittee is an individual)

What is the Legal Name of the owner/co-permittee applying for this permit? N/A If the owner/co-permittee is currently a customer with TCEQ, what is the Customer Number (CN)? Search for your CN at: http: //www12.tceq.texas.gov/crpub/index.cfm?fuseaction=cust.CustSearch CN What is the name and title of the person signing the application? (The person must be the individual. See signatory requirements in TAC 305.43(a).) Prefix (Mr. Ms, Miss): First/Last Name: Suffix: State Identification Number: Date of Birth: Assumed business or professional name: Business name: What is the applicant's mailing address as recognized by the US Postal Service? You may verify the address at: http://zip4.usps.com/zip4/welcome.jsp Mailing Address: Internal Routing (Mail Code, Etc.): City: State: TX ZIP Code: Mailing Information if outside USA Territory: Country Code: _Postal Code: Phone No.: Extension: Fax No.: E-mail Address:

2. BILLING CONTACT (Instructions Page 21)

a. Billing Contact and Address Information The permittee is responsiblefor paying the annualfee. The annual fee will be assessed to permits active on September 1 of each year. TCEQ will send a bill to the addressprovided in this section. The permittee is responsiblefor terminating the permit when it is no longer needed.

Is the billing address the same as the permittee or co-permittee? E Permittee rl Co-permittee M No, fill out this section Prefix (Mr. Ms, Miss): Mr. First/Last Name: Gary Spicer Suffix: Title: Water Quality and Solid Waste Manager Credential:_ Organization Name: Luminant Generation Company LLC Billing Mailing Address: 1601 Bryan Street TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 5 of 18

Internal Routing (Mail Code, Etc.): EP 27-095C City: Dallas State: TX ZIP Code: 75201 Mailing Information if outside USA. Territory: Country Code: Postal Code: Phone No.: (214) 875-8299 Extension: Fax No.: (214) 875-8699 E-mail Address:

3. APPLICATION CONTACT INFORMATION (Instructions, Page 21)

If TCEQ needs additional information regarding this application, who should be contacted?

a. Application Contact Prefix (Mr. Ms, Miss): Mr.

First/Last Name: Gary Spicer Suffix: Title: Water Quality and Solid Waste Manager Credential: Organization Name: Luminant Generation Company LLC Mailing Address: 1601 Bryan Street Internal Routing (Mail Code, Etc.): EP 27-095C City: Dallas State: Texas ZIP Code: 75201 Mailing Information if outside USA. Territory: Country Code: Postal Code: Phone No.: (214) 875-8299 Extension: Fax No.: (214) 875-8699 E-mail Address: spicer@luminant.com Check one or both: [W/ Administrative contact P/1 Technical Contact

b. Application Contact Prefix (Mr. Ms, Miss): Mr:

First/Last Name: Ryan Bayle Suffix: Title: Water Resources Coordinator Credential: P.G. Organization Name: Luminant Generation Company LLC Mailing Address: 1601 Bryan Street Internal Routing (Mail Code, Etc.): EP 27-090E City: Dallas State: TX ZIP Code: 75201 Mailing Information if outside USA. Territory: Country Code: Postal Code: Phone No.: (214) 875-8294 Extension: Fax No.: (214) 875-8699 E-mail Address: ryan.bayle@luminant.com Check one or both: : F,/ Administrative contact [0/ Technical Contact TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 6 of 18

4. DMR CONTACT INFORMATION (Instructions Page 21)

Contact Responsible for Discharge Monitoring Reports (EPA 3320-1) Provide the name of the person and their complete mailing address delegated to receive and submit Discharge Monitoring Report Forms. Prefix (Mr. Ms, Miss): Mr. First/Last Name: Zeke Martinez Suffix: Title: Environmental Specialist Credential: Organization Name: Luminant Generation Company LLC Mailing Address: 1601 Bryan Street Internal Routing (Mail Code, Etc.): EP 27-115C City: Dallas State: TX ZIP Code: 75201 Mailing Information if outside USA. Territory: Country Code: Postal Code: Phone No.: (214) 875-8381 Extension: Fax No.: (214) 875-8699 E-mail Address: zeke.martinez@luminant.com Did you know you can submit DMR data on line? Go to Sign up now at: https://www6.tceg.texas.gov/steersl Establish an electronic reporting account when you get your permit number.

5. PERMIT CONTACT INFORMATION (Instructions, Page 22)

Provide two names of individuals that can be contacted throughout the permit term. Prefix (Mr. Ms, Miss): Mr. First/Last Name: Gary Spicer Suffix: Title: Water Quality and Solid Waste Manager Credential: Organization Name: Luminant Generation Company LLC Mailing Address: 1601 Bryan Street Internal Routing (Mail Code, Etc.): EP 27-090C City: Dallas State: TX ZIP Code: 75201 Mailing Information if outside USA. Territory: Country Code: Postal Code: Phone No.: (214) 875-8299 Extension: Fax No.: (214) 875-8699 E-mail Address: spicer@luminant.com TCEQ-1 0411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 7 of 18

Prefix (Mr. Ms, Miss): Mr. First/Last Name: Ryan Bayle Suffix: Title: Water Resources Coordinator Credential: P.G. Organization Name: Luminant Generation Company LLC Mailing Address: 1601 Bryan Street Internal Routing (Mail Code, Etc.): EP 27-090E City: Dallas State: TX B---- Code: 75201 Mailing Information if outside USA. Territory: Country Code: Postal Code: Phone No.: (214) 875-8294 Extension: Fax No.: (214) 875-8699 E-mail Address;: ryan.bayle@luminant.com

6. NOTICE INFORMATION (Instructions, Page 22)

a. Individual publishing the notices Prefix (Mr. Ms, Miss): Mr.

First/Last Name: Ryan Bayle Suffix: Title: Water Resources Coordinator Credential: P.G. Organization Name: Luminant Generation Company LLC Mailing Address: 1601 Bryan Street Internal Routing (Mail Code, Etc.): EP 27-090E City: Dallas State: TX ZIP Code: 75201 Mailing Information if outside USA. Territory: Country Code: Postal Code: Phone No.: (214) 875-8294 Extension: Fax No.: (214) 875-8699 E-mail Address: ryan-bayle@luminant.com

b. Method for receiving Notice of Receipt and Intent to Obtain a Water Quality Permit Package Indicate by a check mark the preferred method for receiving the first notice and instructions:

[71 E-mail Address: ryan.bayle@luminant.com; spicer@luminant.com F] Fax No.: E- Overnight/Priority mail: (self addressed, prepaid envelope required) W Regular Mail: Mailing Address: 1601 Bryan Street Internal Routing (Mail Code, Etc.): EP 27-090E City: Dallas State: TX ZIP Code: 75201

c. Contact in the Notice TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 8 of 18

Prefix (Mr. Ms, Miss): Mr. First/Last Name: Gary Spicer Suffix: Title: Water Quality and Solid Waste Manager Credential: Organization Name: Luminant Generation Company LLC Phone No.: (214) 875-8299 Extension:

d. Public Place Information If the facility and/or outfall are located in more than one county, a public viewing placefor each county must be provided.

Public Building name: Somervell County Clerk's Office Location within the building: County Clerk's Office Physical address of building: 107 N.E. Vernon City: Glen Rose, Texas 76043 County: Somervell Contact Name: Candace (Candy) Garrett Phone No.: (254) 897-4427 Extension:

e. Bilingual Notice Requirements:

For new permit, major amendment and renewal applications. Not applicable for minor amendment or minor modification applications. Please call the bilingual/ESL coordinator at the nearest elementary and middle schools and obtain the following information to determine if an alternative language notice is required:

1. Is a bilingual education program required by the Texas Education Code at the nearest elementary or middle school to the facility or proposed facility?

W1 Yes E- No (If No, alternative language notice publication is not required; skip to item 7. SITE INFORMATION.)

2. Are the students who attend either the elementary school or the middle school enrolled in a bilingual education program at that school?

M Yes M No

3. Do the students at these schools attend a bilingual education program at another location?

M Yes r] No

4. Would the school be required to provide a bilingual education program but the school has waived out of this requirement under 19 TAC §89.1205(g)?

7lYes F NNo

5. If the answer is yes to 1, 2, 3, or 4, public notice in an alternative language is required. Which language is required by the bilingual program?

Spanish This section of the applicationis only used to determine if alternative language notice will be needed. Complete instructionson publishing the alternativelanguagenotice will be in your public notice package. TCEQ-10411 (9/112010) Industrial Wastewater Permit Application - Administrative Report Page 9 of 18

7. REGULATED ENTITY AND PERMITTED SITE INFORMATION (Instructions Page 23)

If the site of your business is part of a larger business site, a Regulated Entity Number (RN) may already be assigned for the larger site. Use the RN assigned for the larger site. Search TCEQ's Central Registry to see if the larger site may already be registered as a regulated site at: http://www12.tceg.texas.gov/crpub/index.cfm?fuseaction=regent.RNSearch If the site is found, provide the assigned Regulated Entity Reference Number and provide the information for the site to be authorized through this application below. The site information for this authorization may vary from the larger site information. TCEQ issued RE Reference Number (RN): RN 103044053

a. State/TPDES Permit No.: W00001854000 Expiration date: 03/01/2015 54 EPA Identification No. (TPDES Permits only): TX 00 658

b. Name of project or site (the name known by the community where located):

Comanche Peak Nuclear Power Plant

c. Is the facility located in Bexar Comal Hays, Kinney, Medina, Travis, Uvalde, or Williamson County? Li Yes Mi No (If Yes, additional information concerning protection of the Edwards Aquifer may be required.)

d. Is the location of the facility used in the existing permit correct? El Yes EINo

e. Does the site have a physical address?

LI If Yes, complete Section A for a physical address. l if No (the location description is not accurate or this is a new permit application, complete), complete Section B for site location information. Section A: Enter the physical address for the site. Verify the address with USPS. If the address is not recognized as a delivery address, provide the address as identified for overnight mail delivery, 911 emergencies, or other online map, tool to confirm an address. PhysicalAddress of Projector Site: Street Number: 6322 Street Name: North FM 56 City: Glen Rose ZIP Code: 76043 Section B: Enter the site location information. If no physical address (Street Number & Street Name), provide a written location access description to the site: (Ex.: located 2 miles west from intersection of Hwy 290 & IH35 accessible on Hwy 290 South) TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 10 of 18

f. City where the site is located or, if not in a city, what is the nearest city:

Glen Rose

g. ZIP Code where the site is located: 76043

h. County where the site is located somervell

i. Latitude: 32 deg. 17 min. 54 sec. Longitude: 97 deg. 47 min. 06 sec.

j. In your own words, briefly describe the primary business of the Regulated Entity:

(Do not repeat the SIC and NAICS code) Generation of electricty

k. Owner of treatment facility: Luminant Generation Company LLC Ownership of Facility: F_ Public F' Private F Both - Federal

1. Owner of land where treatment facility is/will be: Luminant Generation Company LLC (If not the same as the facility owner, there must be a long term lease agreement in effect for at least six years. In some cases, a lease may not suffice - see instructions.)

m. Owner of effluent disposal site: N/A (If not the same as the facility owner, there must be a long term lease agreement in effect for at least six years.)

n. Owner of sewage sludge disposal site: N/A (Required only if authorization is sought in the permit for sludge disposal on property owned/controlled by the applicant.)

8. DISCHARGE/ DISPOSAL INFORMATION (Instructions, Page 26)

a. Is the point of discharge and discharge route in the existing permit correct?

E Yes F No If no, or a new or amendment permit application, please give an accurate description.

b. City or Town in which the outfall(s) is or will be located Glen Rose

c. County the outfall(s) is located: Somervell

d. Outfall Latitude: See attache page 11 a Longitude: See attached page 11 a

e. For all applications involving an average daily discharge of 5 million gallons per day or more, provide the names of all counties located within loo statute miles downstream of the point(s) of discharge. Somervell, Hood, Johnson, Bosque, McLennan, Falls & Hill TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 11 of 18

TCEQ INDUSTRIAL WASTEWATER PERMIT APPLICATION INDUSTRIAL ADMINISTRATIVE REPORT Applicant: Luminant Generation Company LLC Permit Number: WQ0001854000 DISCHARGE/ DISPOSAL INFORMATION Outfall Latitude Longitude 001 320 17' 47.34" 970 46' 58.66" 002 320 17' 28.13" 970 47' 14.18" 003 320 17' 46.77" 970 47' 00.75" 004 320 17' 53.19" 970 47' 11.71" Page Ila of 18

fL If a TLAP, is the location of the effluent disposal site in the existing permit accurate? FE1 Yes M No If no, or a new or amendment permit application, please give an accurate description. N/A

g. City or Town in which the disposal site is or will be located N/A

h. County the disposal site is located: N/A

i. Disposal Site Latitude: N/A Longitude: N/A

j. If a TLAP, describe the routing of effluent from the treatment facility to the effluent disposal site:

N/A

k. For TLAP applications please identify the nearest watercourse to the disposal site to which rainfall runoff might flow if not contained: N/A

1. Is the location of the sewage sludge disposal site in the existing permit accurate?

D-Yes M No If no, or a new permit application, please give an accurate description. N/A

m. Provide an original full size USGS Topographic Map with all required information.

Indicate by a check mark that the information is provided. A] Applicant's property boundary F-- Treatment facility boundaries [E] Labeled point of discharge and highlighted discharge route E] Sewage sludge disposal site

          -- Effluent disposal site boundaries
          -- New and future construction F-] 1 mile radius and 3 miles downstream information I-1 All ponds

n. Is/will the treated wastewater discharge to a city, county, or state highway right-of-way, or a flood control district drainage ditch? M-I Yes tEI No If Yes, indicate by a check mark if:

F-- Authorization granted El Authorization pending (For new and amendments, provide copies of letters that show proof of contact and the approval letter upon receipt.) TCEQ-1 0411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 12 of 18

o. Is the facility located on or does the treated effluent cross American Indian Land?

E- Yes F] No

9. MISCELLANEOUS INFORMATION (Instructions, Pages 29)

a. List each person formerly employed by the TCEQ who represented your company and was paid for service regarding the application:

N/A

b. Do you owe fees to the TCEQ? E- Yes F] No If yes, please provide:

Account number: Amount past due:

c. Do you owe any penalties to the TCEQ? R Yes FO No If yes, please provide:

Enforcement order number Amount past due TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 13 of 18

10. SIGNATURE PAGE (Instructions, Page 30)

Permit Number: WQ0001 854000 Applicant: Luminant Generation Company LLC Certification: Kim Mireles VP Environmental Services Typed or printed name Title certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. I further certify that I am authorized under 3o Texas Administrative Code §305.44 to sign and submit this document, and can provide documentation in proof of such authorization upon request. . Signature: _m____ _ __ Date: ______ ___ I (Use blue ink) Subscribed and Sworn to before me by the said vVX Y\ y-n Le S on this _ 2-_-_ day of cjvLs-q ,2o 1j My commission expires on the I* day of 0 c-4 ,20 t Notary Public / County, Texas Sandy C.Mixon "Pubk Sta4te fU ol..;,~

                                                                           ...      *Crv9E~.*¢s 1OI18t2Ot5 If co-permittees are necessary, each entity must submit an original, separate signature page.

TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 14 of 18

TEXAS COMMISSION ON ENVIRONMENTAL QUALITY SUPPLEMENTAL PERMIT INFORMATION FORM (SPIF) FOR AGENCIES REVIEWING INDUSTRIAL TPDES WASTEWATER PERMIT APPLICATIONS TCEQ USE ONLY: Application type: Renewal Major Amendment Minor Amendment -New County: Segment Number Admin Complete Date: Agency Receiving SPIF: Texas Historical Commission U.S. Fish and Wildlife ___ Texas Parks and Wildlife Department __ U.S. Army Corps of Engineers This form applies to TPDES permit applications only. (Instructions, Page 34) The SPIF must be completed as a separate document. The TCEQ will mail a copy of the SPIF to each agency as required by the TCEQ agreement with EPA. If any of the items are not completely addressed and/or further information is needed, you will be contacted to provide the information before the permit is issued. Each item must be completely addressed. Do not refer to a response of any item in the permit application form. Each attachment must be provided with this form separately from the administrative report of the application. The application will not be declared administratively complete without this form being completed in its entirety including all attachments. The following applies to all applications:

1. Permittee: Luminant Generation Company LLC

2. Permit No. WQoo 0185 4 0 0 0 (EPA ID No.) TX 0 0 6 5 8 5 4

3. Address of the project (location description that includes street/highway, city/vicinity, & county) 6322 North FM 56, Glen Rose, TX 76043

4. Provide the name, address, phone and fax number of an individual that can be contacted to answer specific questions about the property.

Name: Gary Spicer Company: Luminant Generation Company LLC Phone number: (214) 875-8299 Fax number: (214) 875-8699 Street No.: 1601 Street name: Bryan Street; EP 090C Street type: P.O. Box: City: Dallas State: TX ZIP code: 7 52 0 1 Email: spicer@luminant.com TCEQ-1 0411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 17 of 18

Somervell

5. List the county in which the facility is located:

6. If the property is publicly owned and the owner is different than the permittee/applicant, please list the owner of the property.

N/A

7. Provide a description of the effluent discharge route. The discharge route must follow the flow of effluent from the point of discharge to the nearest major watercourse (from the point of discharge to a classified segment as defined in 30 TAC Chapter 307). If known, please identify the Segment Number.

Via Outfalls 001, 002, 003 and 004 to Squaw Creek Reservoir; thence to Squaw Creek; thence to Paluxy River/North Paluxy River in segment 1229 of the Brazos River.

8. Please provide a separate 7.5 minute USGS quadrangle map with the project boundaries plotted and a general location map showing the project area. Please highlight the discharge route from the point of discharge for a distance of one mile downstream. (This map is required in addition to the map in the administrative report).

9. Provide original photographs of any structures 50 years or older on the property.

lo. Does your project involve any of the following? Check all that apply. [-R a. Proposed access roads, utility lines, construction easements R b. Visual effects that could damage or detract from a historic property's integrity R c. Vibration effects during construction or as a result of project design R d. Additional phases of development that are planned for the future R e. Sealing caves, fractures, sinkholes, other karst features [-- f. Disturbance of vegetation or wetlands

11. List proposed construction impact (surface acres to be impacted, depth of excavation, sealing of caves, or other karst features).

None. This is an established facility that has been in commercial operation since 1!

12. Describe existing disturbances, vegetation and land use.

IPower plant with associated structures, facilities and roads. THE FOLLOWING ITEMS APPLY ONLY TO APPLICATIONS FOR NEW TPDES PERMITS AND MAJOR AMENDMENTS TO TPDES PERMITS

13. List construction dates of all buildings and structures on the property.

14. Provide a brief history of the property, and name of the architect/builder, if known.

TCEQ-10411 (9/1/2010) Industrial Wastewater Permit Application - Administrative Report Page 18 of 18

SUPPLEMENTAL PERMIT INFORMATION FORM ATTACHMENT USGS SITE MAP AND FACILITY MAP Luminant Generation Company LLC Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000

4 THIS PAGE IS AN OVE1RýSIZED DRAWING OR FIGURE, THAT CAN BE VIEWED AT THE RECORD TITLED: THE NATIONAL MAP US TOP HILL, CITY, TX 2013 WITHIN THIS PACKAGE... D-OI A

THIS PAGE IS AN OVERSIZED DRAWING OR FIGURE, THA T CAN BE VIEWED AT THE RECORD TITLED: THE NATIONAL MAP US TOP NEMO, TX 2013 WITHIN THIS PACKAGE... D-02

THIS PAGE IS AN OVERSIZED DRAWING OR FIGURE, THAT CAN BE VIEWED AT THE RECORD TITLED: COMANCHE PEAK NUCLEAR POWER PLANT FACILITY MAP WITHIN THIS PACKAGE... D-03

TECHNICAL REPORT 1.o INDUSTRIAL THE FOLLOWING IS REQUIRED FOR ALL APPLICATIONS RENEWAL, NEW, AND AMENDMENT

1. FACILITY/SITE INFORMATION (Instructions, page 35)

a. Describe the type of activity and general nature of your business.

Generation of Electricity

b. SIC Code(s) 4911 NAICS Code(s) 2211122 ,_,

c. Describe the wastewater generating processes.

See Attachment C: General Description

d. Provide a list of raw materials, major intermediates, and products handled at your facility.

Raw Materials Intermediate Products Final Products water steam electricity enriched uranium TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 1 of 66

e. Indicate by a check mark that an attached facility map with the following information was provided with the application:

W-] Production areas, maintenance areas, materials handling areas, and waste disposal areas. Z-j The location of each unit of the wastewater treatment plant including the location of wastewater collection sumps and impoundments. Attachment #: B: USGS Site Map and Facility Map

f. Is this a new permit application for an existing facility? - Yes 91 No If yes, provide background discussion below.

g. Is the treatment facility/disposal site located above the 10o-year frequency flood level?

W1 Yes E- No List source(s) used to determine 10o-year frequency flood plain: FEMA Flood Insurance Rate Map, Somervell County Texas Unincorporated Areas. Map #48425C0050C, April 3, 1995 If no, provide the elevation of the 1o0-year frequency flood plain and describe what protective measures are in use or planned to be used to prevent flooding of the treatment facility/disposal area.

h. For new or amendment permit applications, will there be discharge of fill material into a water in the state for construction of the proposed outfall structure? 0 Yes 0 No If no, proceed to Item No. 2. If yes, has the applicant applied for a U.S. Corps of Engineers 404 Dredge and Fill permit? El Yes El No If yes, provide the permit number:

If no, provide the approximate date you anticipate submitting your application to the Corns.

     - --  r-lU TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report                     Page 2 of 66

2. TREATMENT SYSTEM (Instructions, page 36)

a. List any physical, chemical, an/or biological treatment process that y ou use f or the treatm ent of wastewater at your facility. Include a description of each treatment process starting with initial treatment and finishing with the discharge point.

TREATMENT PROCESS TREATMENT UNIT CAPACITY or DIMENSIONS OUTFALL

1. Solid Separation Condensate Polisher 34' x 153" x 8' 004 Decant Basin

2. Solid Separation Clarifier Decant Basin 96'4" x 21' x 11' 004

3. Oil/water Separation API Separator 4'6" x 4' x 5'6" 004

4. Neutralization Equalization Basin 210' x 46'x 9' 004

5. Radiological Filtration Wastewater Hold Tank 01 15' x 20' x 15' 004

6. Radiological Filtration Wastewater Hold Tank 01 15' x 20' x 15' 004

7. Activated Sludge Sewage Treatment Plant 60' dia x 11' H 003 For additional information, see Attachment C: General Description.

b. [71 Indicate by a check mark that an attached flow schematic with a water balance was provided with the applications showing each treatment unit and all sources of wastewater flow into the treatment plant and to each outfall/point of disposal.

Attachment *: D: Water Flow Diagram

3. IMPOUNDMENTS (Instructions, pages 36)

Do you use or plan to use any wastewater lagoons, ponds, or impoundments W] Yes -- No If yes, complete item 3(a) for existing impoundments and items 3(a)-3(f) for new or proposed impoundments. If no, proceed to Item No. 4.

a. Provide the following information in the table provided:

Designation: Indicate t he appropriate u se designation for each p ond [ Treatment (T), Disposal (D), Containment (C), or Evaporation (E)] Discharge Point: If a discharge occurs from the impoundments, designate the outfall associated with the impoundment. Liner I nformation: If the impoundments are lined to comply with specifications outlined for 1) a c ompacted clay Iiner (C), 2) an in-situ clay Iiner (I), or 3 ) a synthetic/plastic/rubber liner (S), indicate the liner type with the appropriate letter designation (see instructions for further detail on liner sp ecifications). If not, provide a reference to the attachment that provides a description of the alternate liner and any additional technical information necessary for an evaluation. Dimensions: Provide t he dimensions(s), freeboard, surface area, an d storage volume capacity of the impoundments. F or impoundments with irregular shapes, submit surface area (instead of length an d width), the average depth, an d the maximum depth b elow natural ground level. TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 3 of 66

Impoundment Information Table Pond # SB Pond # A Pond # B Pond # C Pond# 0 Designation Surge Basin LVW PondA 'Ž.i 9,jd B iS/WIPriC oi-onMCW (T) (D) (C) or (E) Flow Equalization C,D,E,T C,D,E,T C,D,E,T C,E,T Discharge Point Outfall Number 004 004 004 004 004 Liner Information Liner Type (C) (I) or (S) S S S S S Alt. Liner Attachment Reference Dimensions Length (feet) 76 ft 410 ft 410 ft 410 ft 410 ft W idth (feet) 76 ft 114 ft 114 ft 366 ft 100 ft Depth from Water Surface 3 ft 14 ft 14 ft 10 ft 10 ft Depth from Nat. Ground Level 5 avg NA max 16 avg NA max _6avg NA max 12 avg NA max 12 avg NA max Freeboard (feet) 2 ft 2 ft 2 ft 2 ft 2 ft Surface Area (acres) 0.133 acres 1.07 acres 1.07 acres 3.44 acres 0.09 acres Storage Capacity (gallons) 130,000 gal 1,600,000 gal 1,600,000 gal 6.400,000 gal 1,500,000 gal Pond # EB Pond # Pond # Pond # Pond # Designation Equalizaiion Basin (T) (D) (C) or (E) C Discharge Point . , . .. Outfall Number 004 Liner Information ,. ... ", . .. . Liner Type (C) (I) or (S) S (over concrete) Alt. Liner Attachment Reference Dimensions Length (feet) 210 ft ft ft ft ft Width (feet) 46 ft ft ft ft ft Depth from Water Surface 9 ft ft ft ft ft Depth from Nat. Ground Level (avg/max) (feet) 11 / NA / / / / Freeboard (feet) 2 ft ft ft ft ft Surface Area (acres) 0.22 acres acres acres acres acres Storage Capacity (gallons) 1,200,000 gal ___ gal __ gal _ gal __ gal TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 4 of 66

I THE FO LLOWING I TEMS A RE R EQUIRED 0 NLY FO R N EW 0 R PR OPOSED IMPOUNDMENTS.

b. Indicate by a check mark if any of the following data was provided with the application:

Li Synthetic/plastic/rubber liner data [- In-situ clay liner data Attachment #:

c. Are there any leak detection systems or ground water monitoring wells in place or planned? F- Yes -- No

     -- If yes, indicate by a check mark that a separate attachment was provided with the leak detection system information for each pond and/or gr ound water monitoring well data.

Attachment #:

d. Is t he b ottom of the p ond a bove t he s easonal h igh water t able in t he shallowest water bearing zone?

[F Yes F No

     -- If no, indicate by a check m ark that additional information was provided describing the depth of the seasonal high water table in the shallowest water bearing zone in relation to the depth of the bottom of the new or proposed impoundment and how this may or may not impact groundwater.

e. Indicate by a check mark that the following information was provided:

F-L A USGS quadrangle map or a color copy of original quality and scale which accurately locates and identifies water supply wells and/or monitor wells within 1/2 mile radius of the impoundments. L- Copies of State Water Well Reports (driller's logs, completion data), and data on depths to g round water fo r water supply w ells in cluding a description o f how t he d epths t o ground water were obtained. For TLAP permit applications: F-- Indicate by a check mark t hat t he new or proposed impoundment(s) and the land application disposal area are located in the same general area and the information for this item is provided in Worksheet 3.0 (item 8).

f. Li Indicate by a check mark id any data was provided with the application pertaining to the ground water, soils, geology, etc. used to assess the potential for migration of wastes from the impoundments and/or the potential for contamination of ground water or surface water.

4. OUTFALL/DISPOSAL METHOD INFORMATION (Instructions, pages 39)

Complete the following tables to describe the location and wastewater discharge or disposal operations f or each outfall for discharge operations and for each point of disposal f or TLAP operations. For TIAP permit applications: Indicate the disposal method and each individual irrigation area (I), evaporation pond ( E), or subsurface drainage system (S) by providing the appropriate letter designation for the disposal method followed by a numerical designation for each disposal area (e.g. evaporation pond, application area) in the space p rovided for "Outfall" designation (e.A. "Ei" for evaporation pond 1 , "12" for irrigation area No. 2, etc.). TCEQ-"10055 (05/15/ 12) Industrial Wastewater Permit Application Technical Report Page 5 of 66

OUTFALL: 001 Latitude Longitude Location Description 32 17 47.34 97 46 58.66 From the once-through cooling water discharge canal Permitted Flow (MGD) Proposed Flow (MGD) to Squaw Creek Reservoir Dly Avg Dly Max Dly Avg Dly Max Discharge Duration 3168 3168 3168 3168 24 (hrs./day) 30/31 (days/mo.) 12 (mo./year) El Pumped F-1 Gravity Measurement Device: record i--lntermittent =----Seasonal =llContinuous Contributing Wastestreams: Volume (MGD)  % of Total Flow Once-through cooling 3168 >99.95 Previously monitored effluent from Outfall 004 1.128 <0.05 OUTFALL: 002 Latitude Longitude Location Description 32 17 28.13 97 47 14.18 From the Safe Shutdown Impoundment to Squaw Permitted Flow (MGD) Proposed Flow (MGD) Creek Reservoir Dly Avg Dly Max Dly Avg Dly Max Discharge Duration report report report report 0 (hrs./day) 0 (days/mo.) 0 (mo./year) 11 Pumped EZ Gravity Measurement Device: Estimate MiZIntermittent Seasonal __Continuous Contributing Wastestreams: Volume (MGD)  % of Total Flow Condenser cooling water No anticipated discharge* Storm water runoff No anticipated discharge*

• See Attachment C: General Description TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 6 of 66

OUTFALL: 003 Latitude Longitude Location Description 32 17 146.77 97 47 00.75 From the Sewer Treatment Plant to Squaw Creek Permitted Flow (MGD) Proposed Flow (MGD) Reservoir Dly Avg Dly Max Dly Avg Dly Max Discharge Duration report report report report 24 (hrs./day) 30/31 (days/mo.) 12 (mo./year) EiPumped F"I Gravity Measurement Device: Estimate Intermittent Seasonal I]Z.Continuous Contributing Wastestreams: Volume (MGD)  % of Total Flow Sanitary sewage effluent 0.078 100 OUTFALL: 004 Latitude Longitude Location Description 32 17 53.19 97 47 11.71 From the Waste Management System to Outfall 001 Permitted Flow (MGD) Proposed Flow (MGD) and/or Squaw Creek Reservoir Dly Avg Dly Max Dly Avg Dly Max Discharge Duration report report report report 24 (hrs./day) 15 (days/mo.) 12 (mo./year) Ml Pumped r0 Gravity Measurement Device: estimate Ji*lntermittent Seasonal Continuous Contributing Wastestreams: Volume (MGD)  % of Total Flow Low volume waste (washdown water, floor/equipment drains miscellaneous uses, water treatment wastes) 1.128 Variable Storm water runoff from bermed areas Variable Variable Previously monitored effluent from Outfall 104 Variable Variable Alternative Discharge Location: 32 deg. 18 min. 06.31 sec N; 97 sec. 47 min. 16.59 sec. W TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 7 of 66

OUTFALL: 104 Latitude Longitude Location Description 32 17 153.17 97 47 135.25 From the Metal Cleaning Waste Pond to Low Volume Permitted Flow (MGD) Proposed Flow (MGD) Waste Retention Ponds to Outfall 004 Dly Avg Dly Max Dly Avg Dly Max Discharge Duration report report report report N/A (hrs./day) N/A (days/mo.) N/A (mo./year) 1 Pumped = Gravity Measurement Device: estimate LJ*intermittent r'Seasonal =-'lContinuous Contributing Wastestreams: Volume (MGD)  % of Total Flow Metal cleaning wastes Variable Variable OUTFALL: Latitude Longitude Location Description

  -I I                     I                        I Permitted Flow (MGD)           Proposed Flow (MGD)

Dly Avg Dly Max Dly Avg Dly Max Discharge Duration ___(hrs./day) __ (days/mo.) -_(mo./year) Pumped M Gravity Measurement Device: Intermittent Seasonal Continuous Contributing Wastestreams: Volume (MGD)  % of Total Flow TCEQ-1 0055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 7a of 66

5. BLOWDOWN AND ONCE-THROUGH COOLING WATER DISCHARGES (Instructions, page 40)

a. Does y our f acility u se any cooling_ towers or boilers that discharge blowdown or other wastestreams to the outfall(s)? I- Yes F- No

b. Does your facility discharge once-through cooling water to the outfall(s)? [-7 Yes 1- No

c. If yes to either item a or b, indicate with a check mark that the appropriate MSDS with the following information for each chemical additive was submitted with the application.

Z Manufacturers Product Identification Number. Z Product use. (e.g., biocide, fungicide, corrosion inhibitor, etc.) Z Chemical Composition including Chemical Abstracts System (CAS) number for each ingredient. Z Classify product as non-persistent, persistent, or bioaccumulative. Z Product or active ingredient half-life. Z Frequency of product use (e.g., 2 hr/day once every two weeks). ZI Product toxicity data specific to fish and aquatic invertebrate organisms. Z Concentration of whole product in wastestream (if above item is for whole product) W] Concentration of active ingredient in wastestream (if above item is for active ingredient) Please provide a summary of this information in addition to the submittal of the MSDS for each specific w astestream an d the associated ch emical a dditives a nd specify which outfalls are affected.

Attachment:

E: Boiler Chemical Additives and Attachment F: Once-through Cooling Chemical Additives

d. Cooling Towers and Boilers Number of Units Daily Avg. Blowdown Daily Max Blowdown Cooling Towers 0 cooling towers Daily Avg: 0 gallons/day Daily Max: 0 gallons/day Boilersj1 boilers Daily Avg: gallons/day Daily Max: gallons/day Note: The Auxiliary Boiler is an emergency back-up system that is only activated in the event of a loss of steam generator use or for periodic maintenance.

6. STORMWATER MANAGEMENT (Instructions, page 41)

Are there any existing or proposed outfalls which discharge stormwater runoff commingled with other wastestreams? Z Yes F- No. If yes, provide the following information. If no, proceed to Item No. 7.

a. Provide a brief narrative description of the in dustrial processes and activities that occur outdoors or in some manner that may result in exposure of the materials to precipitation or runoff in areas where runoff is generated.

Storm water runoff from the turbine generator area for Unit 1 and small construction projects in the drainage area are routed to the Safe Shutdown Impoundment and eventually to Outfall 002, The Unit 2 drainage area is routed through storm water outfalls permitted under the TCEQ Multi-Sector General Permit (Permit No. TXR05K098). Storm water runoff from the diked chemical storage areas, transformers and (if feasible) small construction projects is suctioned into tanker trucks and discharged through Outfall 004. Other areas in which storm water runoff may be exposed to industrial processes are permitted under the TCEQ Multi-Sector General Permit (Permit No. TXR05KO98). TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 8 of 66

7. DOMESTIC SEWAGE, SEWAGE SLUDGE, AND/OR SEPTAGE MANAGEMENT AND DISPOSAL (Instructions, page 41)

a. Please check the appropriate m ethod(s) of domestic sewage a nd domestic sewage sludge treatment/disposal and complete Attachment F if directed.

F] Domestic sewage is not generated on-site. PROCEED TO ITEM NO. 8. FL1 Both do mestic and i ndustrial t reatment s ludge ARE commingled prior t o u se or disposal. PROCEED TO ITEM NO. 8. F-- Industrial wastewater and domestic sewage are treated separately and the respective sludge IS NOT commingled prior to sludge use or disposal COMPLETE WORKSHEET 5.0 OF THIS APPLICATION. [V] If your facility is a POTW, COMPLETE WORKSHEET 5.0 OF THIS APPLICATION.

       -- Facility is connected to a wastewater treatment plant permitted to receive domestic sewage, or the domestic sewage is transported off-site to a permitted facility for treatment and/or disposal. COMPLETE ITEM NO. 7.B.

[-- Domestic sewage is disposed of by an on-site septic tank. COMPLETE ITEM 7.B. Ln Other: Please provide a detailed description below.

b. Provide t he n ame a nd TC EQ, NPDES, and/or TPDES P ermit N o. of t he waste disposal facility which receives the domestic sewage/septage. If hauled by motorized vehicle, provide the name and TCEQ Registration No. of the hauler.

Plant/Hauler Name Permit/Registration No. Disposal Facility: Republic Itasca Landfill 241 D Hauler: SET Environmental / Cactus Environmental Services ILD981957236/TXD980796338

8. IMPROVEMENTS OR COMPLIANCE/ENFORCEMENT REQUIREMENTS (Instructions, page 42)

Is the permittee currently required to meet any implementation schedule for compliance or enforcement? E] Yes W1 No If yes, provide a brief summary of the requirements and a status update. TCEQ-1 0055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 9 of 66

9. TOXICITY TESTING (Instructions, page 42)

Have any biological tests for acute or chronic toxicity been made on any of your discharges or on a receiving water in relation to your discharge within the last three (3) years? W] Yes D- No If yes, identify the tests and describe their purposes below. Please attach a copy of all tests performed that have not been previously sent to the TCEQ and/or EPA. Chronic an 24-hour Acute biomonitoring of Outfall 001 are completed as required by the current permit. All test results have been previously submitted to the TCEQ. lo. OFF-SITE/THIRD PARTY WASTES (Instructions, page 42) Do you receive wastes from off-site sources for treatment in your facility, disposal on-site via land application, and/or discharge via a permitted outfall E] Yes W]- No If no, proceed to Item No. 11. If yes, proceed as directed.

a. Indicate with a check mark that a detailed attachment with the following information was provided with the application:

D-- List of wastes received D- Identified sources of wastes received

       -- Characterization of wastes received                                D- Name and addresses of generators F-D Volumes of each waste received                                     [D Description of the relationship of F-D Info. on compatibility with on-site wastes                               waste source(s) with your facility's activities.

Attachment:

b. Is wastewater from a TCEQ, NPDES, and/or TPDES permitted facility commingled with your wastewater after your final treatment and prior to discharge via your final outfall/point of disposal? F Yes F-1 No If yes, provide the name, address, and TCEQ, NPDES, and/or TPDES permit number of the co ntributing facility an d a copy of any agreements an d/or contracts r elating t o t his activity.

c. Is your facility a Publicly Owned Treatment Works (POTW) that accepts process wastewater from any Significant Industrial User (SIU) and has or is required to have an approved pretreatment program under the NPDES/TPDES program? E-- Yes -- No If yes, complete Worksheet 6.o of this application.

ii. RADIOACTIVE MATERIALS (Instructions, page 43) Are radioactive materials mined, used, stored, or processed at this facility? W] Yes [-] No If yes, Provide alist of the materials and the r esults of one analysis of your effluent in picocuries per liter (pCi/L) for all radioactive parameters which may be present. Radioactive Materials Conc. (pCi/L) All radioactive materials used at this facility fall under the jurisdiction of the Nuclear Regulatory Commission (NRC) i TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 10 of 66

THE FOLLOWING ITEMS ARE ONLY REQUIRED FOR EXISTING PERMITTED FACILITIES.

12. MAJOR AMENDMENT REQUESTS (Instructions, pages 43)

Are you requesting a major amendment of an existing permit? E- Yes V1 No If yes, list each specific request and provide discussion on the scope of any requested permit changes. If necessary, provide supplemental information or additional data that will support the request.

13. MINOR MODIFICATION REQUESTS (Instructions, page 43)

Are you requesting any minor modifications to the permit? [Z] Yes E- No Note: see the instructions for an exclusive list of changes considered as minor modifications. If yes, list and discuss the requested changes. Requesting a Minor Modification with renewal of the existing permit to remove Outfall 005 in accordance with §305.62(c)(3)(E).

14. MINOR AMENDMENT REQUESTS (Instructions, page 44)

Are you requesting any minor amendments to the permit? _ Yes V No If yes, list and discuss the requested changes. TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 11 of 66

WORKSHEETS TO THE INDUSTRIAL WASTEWATER PERMIT APPLICATION TECHNICAL REPORT Please review the worksheet requirements in the instructions and indicate by checking either yes or no which worksheets are required, completed, and submitted with the technical report. Worksheets that are not applicable do not need to be submitted with the technical report. COMPLETED AND SUBMITTED WITH WORKSHEET THE TECHNICAL REPORT: YES NO 1.0: EPA EFFLUENT CATEGORICAL GUIDELINES [F U 2.0: POLLUTANT ANALYSES REQUIREMENTS [7-3.0: LAND DISPOSAL OF EFFLUENT 7-[- 3.1: SURFACE LAND DISPOSAL OF EFFLUENT [7 1 3.2: SUBSURFACE LAND DISPOSAL OF EFFLUENT 7--7 3.3: SUBSURFACE AREA DRIP DISPERSAL SYSTEM LAND 7[V DISPOSAL OF EFFLUENT 4.o: RECEIVING WATERS [7T 4.1: STREAM PHYSICAL CHARACTERISTICS WORKSHEET 7 17 5.0: SEWAGE SLUDGE MANAGEMENT AND DISPOSAL [7 7 6.0: INDUSTRIAL WASTE CONTRIBUTION 7 [7 7.0: STORMWATER RUNOFF 7-[7 8.0: AQUACULTURE [ 9.o: CLASS V INJECTION WELL 7 [7 lo.o: QUARRIES IN THE JOHN GRAVES SCENIC RIVERWAY 7 [7 TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 12 of 66

WORKSHEET 1.o EPA EFFLUENT CATEGORICAL GUIDELINES REQUIRED FOR ALL APPLICATIONS FOR TPDES PERMITS FOR DISCHARGES OF WASTEWATERS SUBJECT TO EPA EFFLUENT LIMITATION GUIDELINES.

1. CATEGORICAL INDUSTRIES (Instructions, pages 47)

Is your facility subject to any of the 40 CFR effluent guidelines outlined in Table 1? Z Yes 0 No If yes, provide the appropriate information in the table below. I f no, this worksheet is not required. Industry CFR Steam Electric Power Generation 423

2. PRODUCTION/PROCESS DATA (Instructions, page 48)

a. Production data: Provide the appropriate data for effluent guidelines with production based effluent limitations.

b. Organic Chemicals, Plastics, a nd Synthetic Fibers Ma nufacturing D ata (40 CFR Part 414): Provide each appropriate subpart and the percent of total production.

Also provide the appropriate data for metal bearing wastestreams as required in 40 CFR Part 414, Appendices A and B.

                                           %0/ of total                             Appendix A and B Subcategory                      production                          Metal               Process N/A TCEQ-1 0055 (05/15/2012) Industrial Wastewater Permit Application Technical Report                 Page 13 of 66

c. Refineries (40 CFR Part 419): Provide the applicable subcategory and a brief justification for each.

N/A

3. PROCESS/NON-PROCESS WASTEWATER FLOWS: Provide a breakdown of process wastewater flow(s) and non-process wastewater flow(s) as directed. (Instructions, page 48)

PROCESS WASTEWATER NON-PROCESS WASTEWATER Low volume waste Once-through cooling water Non-chemical metal cleaning waste Chemical metal cleaning waste

4. NEW SOURCE DETERMINATION: Provide a list of wastewater generating processes subject to effluent guidelines and the appropriate information. (Instructions, page 48)

Process EPA Guideline Date Process/ Construction Part Subpart Commenced Low volume waste 423 N/A 1990 Non-chemical metal cleaning waste 423 N/A 1990 Chemical metal cleaning waste 423 N/A 1990 Once-through cooling water 423 N/A 1990 TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 14 of 66

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Worksheet 2.0 - Pollutant Analysis Requirements Outfall 001 is an external, continuous discharge outfall of non-process wastewater. Complete analytical results for Tables I and 2 are provided. Partial analytical results for Tables 5 and 7 are also provided, because Base Neutral Compounds and Pesticides are not required for Steam Electric Stations. Grab samples representative of chlorination and/or bromination were used for the analysis. Outfall 002 is an external discharge of non-process wastewater. The Safe Shutdown Impoundment (SSI) is a safety component of the facility required by the Nuclear Regulatory Commission (NRC) to provide a source of emergency cooling water for safe reactor shutdown in the unlikely event of a failure of the Squaw Creek Reservoir dam. To date, this diversion of cooling water has not been necessary. Since there has been no discharge from this outfall, complete pollutant analysis cannot be submitted as part of this application. Luminant Generation Company LLC understands that because we are not able to collect the samples for 002 to complete the analysis specified in the application, a post issuance testing requirement will be inserted as a provision of the renewed permit. Outfall 003 is an external discharge of treated domestic wastewater; therefore, complete analytical results are provided for Tables 1, 2, 3, 5, and 7. Outfall 004 is an internal outfall although it has an option to be discharged directly to the lake. This option has never been used and has a flange installed to avoid use. Outfall 104 is an internal outfall. Since both of these outfalls are internal, no samples were taken. Pollutant analyses were performed by the following entities:

a. For Outfall 001, Temperature, pH and Total Residual Chlorine (TRC) analyses were performed by Company personnel in the on-site laboratory.

b. For Outfall 003, Temperature, pH, BOD5 and TSS were performed by Company personnel in the on-site laboratory.

c. All other analysis was performed by Pace Analytical Services, Inc., 400 W. Bethany Rd. Suite 190, Allen, Texas 75013, (800-228-3764).

WORKSHEET 2.0 POLLUTANT ANALYSES REQUIREMENTS REQUIRED FOR APPLICATIONS SUBMITTED FOR A TPDES PERMIT. NOT REQUIRED FOR APPLICATIONS FOR A PERMIT TO DISPOSE OF ALL WASTEWATER BY LAND DISPOSAL OR FOR DISCHARGES SOLELY OF STORM-WATER RUNOFF. (General Requirements: Instructions, Pages 49-51)

1. TABLE i: Complete table required for all external outfalls.

Outfall No.: 0011 I IC 7EIG Effluent Concentration (ma/l) Pollutants Samp. Samp. Samp. Samp. Average BOD (5-day) <2.0 <2.0 <2.0 <2.0 <2.0 CBOD (5-day) <2.0 <2.0 <2.0 <2.0 <2.0 Chemical Oxygen 71.9 62.9 71.9 71.9 69.7 Demand Total Organic Carbon 12.3 11.9 14.5 14.4 13.3 Dissolved Oxygen 8.5 6.0 5.4 6.4 6.6 Ammonia Nitrogen <0.1 <0.1 <0.1 <0.1 <0.1 Total Suspended Solids 4.3 4.7 4.0 8.4 5.4 Nitrate Nitrogen <o.1 <0.1 <0.1 <0.1 <0.1 Total Organic Nitrogen 0.31 0.37 0.27 0.59 0.39 Total Phosphorus 0.63 1.8 <0.01 0.61 0.76 Oil and Grease <3.1 <2.9 <3.0 <3.0 <3.0 Total Residual Chlorine 0 0 0 0 0 Total Dissolved Solids 3600 3140 3240 3220 3300 Sulfate 519 577 511 570 544 Chloride 1410 1360 1520 1640 1483 Fluoride <0.5 <0.5 0.59 0.59 0.42 Temperature (OF) 101 103 105 104 103.25 pH (Standard Units; 8.83 8.86 8.89 8.87 8.86 min/max) Effluent Concentration (pg/I) MAL (pg/I) Total Aluminum <30 <30 <30 <30 <30 30 Total Antimony <30 <30 <30 <30 <30 30 Total Arsenic <1o <10 <10 <10 <10 10 Total Barium 244 262 253 267 257 10 Total Beryllium <5 <5 <5 <5 <5 5 Total Cadmium <1 <1 <1 <1 <1 1 Total Chromium <1o <10 <10 <10 <10 10 Trivalent Chromium <1o <10 <10 <10 <10 N/A Hexavalent Chromium <1o <10 <10 <10 <10 10 Total Copper <10 <10 <10 <10 <10 10 Cyanide <20 <20 <20 <20 <20 20 Total Lead <5 <5 <5 <5 <5 5 Total Mercury <0.2 <0.2 <0.2 <0.2 <0.2 0.2 Total Nickel <1o <10 <10 <10 <10 10 Total Selenium <10 <10 <10 <10 <10 10 Total Silver <2 <2 <2 <2 <2 2.0 Total Thallium <10 <10 <10 <10 <10 10 Total Zinc <5 <5 8.3 <5 3.95 5 TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 15 of 66

WORKSHEET 2.0 POLLUTANT ANALYSES REQUIREMENTS REQUIRED FOR APPLICATIONS SUBMITITED FOR A TPDES PERMIT. NOT REQUIRED FOR APPLICATIONS FOR A PERMIT TO DISPOSE OF ALL WASTEWATER BY LAND DISPOSAL OR FOR DISCHARGES SOLELY OF STORM-WATER RUNOFF. (General Requirements: Instructions, Pages 49-51)

1. TABLE 1: Complete table required for all external outfalls.

Outfall No.: 0031 -- C IXIG Effluent Concentration (mqll) Pollutants Samp. Samp. Samp. Samp. Average BOD (5-day) <2.0 <2.0 <2.0 <2.0 <2.0 CBOD (5-day) <2.0 <2.0 <2.0 <2.0 <2.0 Chemical Oxygen 26.8 20.1 26.8 22.3 24.0 Demand Total Organic Carbon 9.1 11.4 9.2 9.6 9.8 Dissolved Oxygen 5.1 3.8 5.1 5.2 4.8 Ammonia Nitrogen <o.1 <0.1 <0.1 <0.1 <0.1 Total Suspended Solids 9.5 3.5 9.2 5.6 6.95 Nitrate Nitrogen 71.0 94.1 95.1 90.4 87.7 Total Organic Nitrogen 0.26 0.37 1.1 0.83 0.64 Total Phosphorus 8.6 2.1 3.6 11.2 6.4 Oil and Grease <2.9 <3.0 <2.8 4.9 2.3 Total Residual Chlorine N/A N/A N/A N/A N/A Total Dissolved Solids 850 821 790 828 822 Sulfate 44.8 49.5 46.5 46.9 46.9 Chloride 80.7 108.0 108.0 88.7 96.4 Fluoride <0.5 <0.5 <0.5 <0.5 <0.5 Temperature (TF) N/A N/A N/A N/A N/A pH (Standard Units; 6.8 6.7 6.8 6.3 6.7 min/max) Effluent Concentration (pg/l) MAL (pg/I) Total Aluminum <30 <30 35.3 <30 20 30 Total Antimony <30 <30 <30 <30 <30 30 Total Arsenic <10 <10 <10 <10 <10 10 Total Barium 19.3 20.3 20.0 17.1 19.2 10 Total Beryllium <5 <5 <5 <5 <5 5 Total Cadmium <1 <1 <1 <1 <1 1 Total Chromium <10 <10 <10 <10 <10 10 Trivalent Chromium <10 <10 <10 . <10 <10 N/A Hexavalent Chromium <10 <10 <10 <10 <10 10 Total Copper 27.4 30.8 30.7 25.6 28.6 10 Cyanide <20 <20 <20 <20 <20 20 Total Lead <5 <5 <5 <5 <5 5 Total Mercury <0.2 <0.2 <0.2 <0.2 <0.2 0.2 Total Nickel <10 <10 <10 <10 <10 10 Total Selenium <10 <10 <10 <10 <10 10 Total Silver <2 <2 <2 <2 <2 2.0 Total Thallium <10 <10 <10 <10 <10 10 Total Zinc 57.0 71.1 62.3 66.8 64.3 5 TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 15 of 66

2. TABLE 2:

Complete table required for all external outfalls which discharge process wastewater. Partial table required for all external outfalls with nonprocess wastewater discharges. Stormwater runoff discharges commingled with other wastestreams shall complete the table as instructed (Instructions, Pages 49-51). Outfall No.: 001 -IC MWG Effluent Concentration (pgll) (*1) Pollutants Samp. I Samp. 2 Samp 3. Samp. 4 Average MAL (pg/I) Benzene <10 <10 <10 <10 <10 10 Benzidine N/A N/A N/A N/A N/A 50 Benzo(a)anthracene N/A N/A N/A N/A N/A 10 Benzo(a)pyrene N/A N/A N/A N/A N/A 10 Carbon Tetrachloride N/A N/A N/A N/A N/A 10 Chlorobenzene <10 <10 <10 <10 <10 10 Chloroform <10 <10 <10 <10 <10 10 Chrysene N/A N/A N/A N/A N/A 10 Cresols N/A N/A N/A N/A N/A (*2) Dibromochloromethane <10 <10 <10 <10 <10 10 1,2-Dibromoethane <2 <2 <2 <2 <2 2 1,4-Dichlorobenzene N/A N/A N/A N/A N/A 10 1,2-Dichloroethane N/A N/A N/A N/A N/A 10 1,1-Dichloroethylene N/A N/A N/A N/A N/A 10 Fluoride <500 <500 590 590 420 500 Hexachlorobenzene N/A N/A N/A N/A N/A 10 Hexachiorobutadiene N/A N/A N/A N/A N/A 10 Hexachloroethane N/A N/A N/A N/A N/A 20 Methyl Ethyl Ketone N/A N/A N/A N/A N/A 50 Nitrobenzene <10 <10 <10 <10 <10 10 n-Nitrosodiethylamine <20 <20 <20 <20 <20 20 n-Nitroso-di-n-Butylamine N/A N/A N/A N/A N/A 20 PCB's, Total (*3) <1 <1 <1 <1 <1 1 Pentachlorobenzene N/A N/A N/A N/A N/A 20 Pentachlorophenol <50 <50 <50 <50 <50 50 Phenanthrene N/A N/A N/A N/A N/A 10 Pyridine <20 <20 <20 <20 <20 20 1,2,4,5-Tetrachlorobenzene <20 <20 <20 <20 <20 20 Tetrachloroethylene <10 <10 <10 <10 <10 10 Trichloroethylene <10 <10 <10 <10 <10 10 1,1,1-Trichloroethane <10 <10 <10 <10 <10 10 2,4,5-Trichlorophenol <50 <50 <50 <50 <50 50 TTHM (Total Trihalmethanes) <10 <10 <10 <10 <10 10 Vinyl Chloride <10 <10 <10 <10 <10 10 (*1) Indicates units if different from gg/l. (*2) MAL's for Cresols: p-Chloro-m-Creso 10 9g/1; 4,6-Dinitro-o-Cresol 50 pg/l; p-Cresol lo pg/i. (*3) Total PCB-1242, PCB-1254, PCB-1221, PCB-1232, PCB-1248, PCB-126o, PCB-1o16. TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 16 of 66'

2. TABLE 2:

Complete table required for all external outfalls which discharge process wastewater. Partial table required for all external outfalls with nonprocess wastewater discharges. Stormwater runoff discharges commingled with other wastestreams shall complete the table as instructed (Instructions, Pages 49-51). Outfall No.: 003 -]C XG Effluent Concentration (pg/I) (*1) Pollutants Samp. 1 Samp. 2 Samp 3. Samp. 4 Average MAL (pg/I) Benzene <10 <10 <10 <10 <10 10 Benzidine <50 <50 <50 <50 <50 50 Benzo(a)anthracene <10 <10 <10 <10 <10 10 Benzo(a)pyrene <10 <10 <10 <10 <10 10 Carbon Tetrachloride <10 <10 <10 <10 <10 10 Chlorobenzene <10 <10 <10 <10 <10 10 Chloroform <10 <10 <10 <10 <10 10 Chrysene <10 <10 <10 <10 <10 10 Cresols <2 <2 <2 <2 <2 (*2) Dibromochloromethane <10 <10 <10 <10 <10 10 1,2-Dibromoethane <2 <2 <2 <2 <2 2 1,4-Dichlorobenzene <10 <10 <10 <10 <10 10 1,2-Dichloroethane <10 <10 <10 <10 <10 10 1,1-Dichloroethylene <10 <10 <10 <10 <10 10 Fluoride <500 <500 <500 <500 <500 500 Hexachlorobenzene <10 <10 <10 <10 <10 10 Hexachlorobutadiene <10 <10 <10 <10 <10 10 Hexachloroethane <20 <20 <20 <20 <20 20 Methyl Ethyl Ketone <50 <50 <50 <50 <50 50 Nitrobenzene <10 <10 <10 <10 <10 10 n-Nitrosodiethylamine <20 <20 <20 <20 <20 20 n-Nitroso-di-n-Butylamine <20 <20 <20 <20 <20 20 PCB's, Total (*3) <1 <1 <1 <1 <1 1 Pentachlorobenzene <20 <20 <20 <20 <20 20 Pentachlorophenol <50 <50 <50 <50 <50 50 Phenanthrene <10 <10 <10 <10 <10 10 Pyridine <20 <20 <20 <20 <20 20 1,2,4,5-Tetrachlorobenzene <20 <20 <20 <20 <20 20 Tetrachloroethylene <10 <10 <10 <10 <10 10 Trichloroethylene <10 <10 <10 <10 <10 10 1,1,1-Trichloroethane <10 <10 <10 <10 <10 10 2,4,5-Trichlorophenol <50 <50 <50 <50 <50 50 TTHM (Total Trihalmethanes) <10 <10 <10 <10 <10 10 Vinyl Chloride <10 <10 <10 <10 <10 10 (*1) Indicates units if different from pg/l. (*2) MAL's for Cresols: p-Chloro-m-Creso 10 pg/l; 4,6-Dinitro-o-Cresol 50 pg/1; p-Cresol 1o pg/l. (*3) Total PCB-1242, PCB-1254, PCB-1221, PCB-1232, PCB-1248, PCB-126o, PCB-io16. TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 16 of 66

a. LABORATORY ACCREDITATION:

Effective July 1,2 008, a 1ll aboratory tests p erformed must meet t he requirements o f 30 TAC Chapter 25, Environmental Testing Laboratory Accreditation and Certification with the following general exemptions:

i. The laboratory is an in-house laboratory and is:

1. periodically inspected by the TCEQ; or

2. located in another state and is accredited or inspected by that state; or

3. performing work for a nother company w ith a u nit I ocated in t he s ame site; or

4. performing pro bono work for a governmental agency or charitable organization.

ii. The laboratory is accredited under federal law. iii. The data are needed for emergency-response activities, and a laboratory accredited under the Texas Laboratory Accreditation Program is not available. iv. The laboratory supplies data for which the TCEQ does not offer accreditation. The applicant should r eview 3 o T AC Chapter 2 5 f or specific requirements. The following certification statement shall be signed and submitted with very application. See Instructions, Page 30, for a list of designated representatives who may sign the certification. I, - certify th at a 11 laboratory te sts submitted with th is applicatidn meet the requirements of 30 TAC Chapter 25, Environmental Testing Laboratory Accreditation and Certification.

3. TABLE3:

Partial table (only those pollutants which are required by the conditions specified for each outfall where the pollutant is believed to be present) required for each external outfall where the source is identified. Not required for internal outfalls. (Instructions, Page 51)

a. TRIBUTYLTIN:

Is your facility or will your proposed facility be an industrial/commercial facility which directly disposes of wastewater from the types of operations listed below or a domestic facility which receive wastewater from the types of industrial/commercial operations listed below? E] Yes 21 No If yes, indicate with a check mark all of the following criteria which apply and provide the appropriate testing results in the table below. FD1 Manufacturers and formulators of tributyltin or related compounds.

          - Painting of ships, boats and marine structures.

II Ship and boat building and repairing.

           - Ship and boat cleaning, salvage, wrecking and scaling.
          - Operation and maintenance of marine cargo handling facilities and marinas E- Facilities engaged in wood preserving R Any other industrial/commercial facility for which tributyltin is known to be present, or for which there is any reason to believe that tributyltin may be present in the effluent.

TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 17 of 66

b. ENTEROCOCCI Does your facility or will your proposed facility discharge directly into saltwater receiving waters and:

Enterococci bacteria is expected to be present? D Yes F7 No Is domestic wastewater discharged? 0 Yes W1 No If yes to either question, provide the appropriate testing results in the table below.

c. E. coli Does your facility or will your proposed facility discharge directly into fresh water receiving waters and:

E. coli bacteria is expected to be present? F7 Yes 0 No Is domestic wastewater discharged? W*] Yes --1 No If yes to either question, provide the appropriate testing results in the table below. TABLE 3 Outfall No.: 003 1oC .G Effluent Concentration Pollutants Samp. 1 Samp. 2 Samp. 3 Samp. 4 Average MAL Tributyltin (*g/) N/A N/A N/A N/A N/A 0.010 Enterococci (CFU or MPN/iOo ml) N/A N/A N/A N/A N/A N/A E. coli (CFUorMPN/ioo ml) 4.1 <1 <1 <1 1.025 N/A

4. TABLE 4:

Complete table r equired for all external outfalls which discharge process wastewater and other wastewaters, which way contain pesticides or herbicides, from a facility which manufactures or formulates pesticides or herbicides. Not required for internal outfalls. Does your facility manufacture or formulate pesticides or herbicides? E- Yes [71 No If yes, provide the appropriate testing results. TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 18 of 66

TABLE4 Outfall No.: IGC LIG Effluent Concentration (pgll) (*1) MAL Pollutants Samp. 1 Samp. 2 Samp. 3 Samp. 4 Avg. (pg/I) Beta-hexachlorocyclohexane 0.05 Carbaryl 5 Chlordane 0.15 Chlorpyrifos 0.05 2,4-D 10 Danitol ---- 4,4'-DDD 0.1 4,4'-DDE 0.1 4,4'-DDT 0.1 Demeton 0.2 Diazinon 0.5 Dicofol 20 Dieldrin 0.1 Diuron 0.09 Endosulfan I (alpha) 0.1 Endosulfan II (beta) 0.1 Endosulfan Sulfate 0.1 Endrin 0.1 Gamma - Hexachlorocyclohexane (Lindane) 0.05 Guthion 0.10 Heptachlor 0.05 Heptachlor Epoxide 1.0 Hexachlorophene 10 Malathion 0.10 Methoxychlor 2.0 Mirex 0.2 Parathion 0.1 Toxaphene 5 2,4,5-TP (Silvex) 2

• Indicate units if different from mg/L.

TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 19 of 66

5. TABLE5:

Complete table required for all external outfalls. Not required for internal outfalls. (Instructions, Page 52) TABLE 5 Outfall No.: 001 oC qG Believed Believed Effluent Concentration (mg/I) Present Absent Pollutants Average Maximum No. of Samples Bromide X 15.5 1 Color(PCU) X 20 1 Nitrate-Nitrite(as N) X <0.2 1 Sulfide(as S) X <2 1 Sulfite(as SO3) X <2 1 Surfactants X <0.2 1 Total Antimony X <30 1 Total Beryllium X <5 1 Total Boron X 0.76 1 Total Cobalt X <0.0025 1 Total Iron X <0.5 1 Total Magnesium X 72.7 1 Total Molybdenum X <0.01 1 Total Manganese X <0.01 1 Total Thallium X <10 1 Total Tin X <0.025 1 Total Titanium X <0.1 1 TCEQ-1 0055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 20 of 66

I

5. TABLE5:

Complete table required for all external outfalls. Not required for internal outfalls. (Instructions, Page 52) TABLE 5 Outfall No.: 003 oC @G Believed Believed Effluent Concentration (mg/I) Present Absent Pollutants Average Maximum No. of Samples Bromide X <0.1 1 Color(PCU) X 100 1 Nitrate-Nitrite(as N) X 90.4 1 Sulfide(as S) X <2 1 Sulfite(as S03) X <2 1 Surfactants X 0.72 1 Total Antimony X <0.03 1 Total Beryllium X <0.005 1 Total Boron X <0.1 1 Total Cobalt X <0.0025 1 Total Iron X <0.5 1 Total Magnesium X 16.8 1 Total Molybdenum X 0.015 1 Total Manganese X <0.01 1 Total Thallium X <0.01 1 Total Tin X <0.025 1 Total Titanium X <0.1 1 TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 20 of 66

6. TABLE 6:

Indicate w ith a check mark any of the industrial caategories applicable t o y our facility. If testing is required, indicate with a check mark in the box provided that the testing results for the a ppropriate parameters in Table B-7 a re provided with the application. (Instructions, Page 52-53) N/A GC/MS Testing Required Volatile Acid Base/Neutral Pesticides _ Adhesives and Sealants Yes El Yes EL Yes Li No ___ Aluminum Forming Yes El Yes EL Yes Li No ___ Auto and Other Laundries Yes 0i Yes Li Yes Li Yes EL ___ Battery Manufacturing Yes El No Yes EL No ___ Coal Mining No No No No ___ Coil Coating Yes Li Yes Li Yes Di No ___ Copper Forming Yes E] Yes [L Yes Li No ___ Electric and Electronic Components Yes 0i Yes Li Yes EL Yes 0i ___ Electroplating Yes El Yes Li Yes EL No __ Explosives Manufacturing No Yes [] Yes EL No _ Foundries Yes 0i Yes Li Yes Li No Gum and Wood Chemicals Subparts A,B,C,E Yes El Yes El No No Subparts D,F Yes EL Yes Li Yes Li No Inorganic Chemicals Yes El Yes [] Yes [I No ___ Iron and Steel Manufacturing Yes E] Yes EL Yes EL No ___ Leather Tanning/Finishing Yes El Yes Li Yes El No _ Mechanical Products Manufacturing Yes El Yes EL Yes Li No ___ Nonferrous Metals Mfg. Yes El Yes L] Yes Li Yes El ___ Ore Mining(Subpart B) No Yes El No No ___ Organic Chemicals, Plastics, and Synthetic Fibers Yes 0i Yes EL Yes EL Yes Li Paint and Ink Formulation Yes Li Yes Li Yes Li No ___ Pesticides Yes Li Yes Li Yes Li Yes Li ___ Petroleum Refining Yes El No No No _ Pharmaceutical Preparations Yes EL Yes EL Yes EL No __ Photographic Equipment and Supplies Yes EL Yes EL Yes EL No _ Plastic and Synthetic Materials Manufacturing Yes EL Yes Li Yes Li Yes Li ___ Plastic Processing Yes Li No No No ___ Porcelain Enameling No No No No __ Printing and Publishing Yes Li Yes Li Yes Li Yes EL __ Pulp and Paperboard Mills Subparts A

                                                                   *Li                         *"L-Yes Li Subparts B, C, D, R                                                Yes EL
                                                                                                            *Li Li Yes Subparts F, G, H, I, K, L, M, N, 0, P              Yes  Li         Yes EL Subparts E, Q, S, T
                                                                                               *L-i Yes El          Yes Li                   Yes EL Subparts J, U                                      Yes Li          Yes Li      Yes Li       *EL

_ Rubber Processing Yes EL Yes Li Yes Li No _ Soap and Detergent Manufacturing Yes Li Yes Li Yes Li No V Steam Electric Power Plants Yes 0J Yes IZ No No Yes Li ___ Textile Mills (Not Subpart C) Yes [I Yes Li No Yes Li ___ Timber Products Processing Yes EL Yes [] Yes EL

• Test if "believed present" TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 21 of 66

7. TABLE 7:

Please complete as directed and only for those parameters specified in Table 6 Required for all external outfalls which contain process wastewater. Not required for internal outfalls. Testing may be required for types of industry not specified in Table 6 for specific parameters if believed present (Instructions, Page 53). TABLE 7 Outfall No.: 001 LIC FORG Effluent Concentration (pgll)* Pollutants Number of sAverage Maximum MAL (pgll) VOLATILE COMPOUNDS Samples Acrolein <50 1 50 Acrylonitrile <50 1 50 Benzene <10 1 10 Bromoform <10 1 10 Carbon Tetrachloride <10 1 10 Chlorobenzene <10 1 10 Chlorodibromomethane <10 1 10 Chloroethane <50 1 50 2-Chloroethylvinyl Ether <10 1 10 Chloroform <10 1 10 Dichlorobromomethane <10 1 10 1,1-Dichloroethane <10 1 10 1,2-Dichloroethane <10 1 10 1,1 -Dichloroethylene <10 1 10 1,2-Dichloropropane <10 1 10 1,3-Dichloropropylene <10 1 10 Ethylbenzene <10 1 10 Methyl Bromide <50 1 50 Methyl Chloride <50 1 50 Methylene Chloride <20 1 20 1,1,2,2-Tetrachloroethane <10 1 10 Tetrachloroethylene <10 1 10 Toluene <10 1 10 1,2-Trans-Dichloroethylene <10 1 10 1,1,1-Trichloroethane <10 1 10 1,1,2-Trichloroethane <10 1 10 Trichloroethylene <10 1 10 Vinyl Chloride <10 1 10 TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 22 of 66

Effluent Concentration (pglI)* Pollutants Average Maximum Number of MAL (pgII) Average Maximum Samples ML(gI ACID COMPOUNDS 2-Chlorophenol <10 1 10 2,4-Dichlorophenol <10 1 10 2,4-Dimethylphenol <10 1 10 4,6-Dinitro-o-Cresol <50 1 50 2,4-Dinitrophenol <50 1 50 2-Nitrophenol <20 1 20 4-Nitrophenol <50 1 50 P-Chloro-m-Cresol <10 1 10 Pentalchlorophenol <50 1 50 Phenol <10 1 10 2,4,6-Trichlorophenol <10 1 10 BASE/NEUTRAL COMPOUNDS Acenaphthene N/A 10 Acenaphthylene N/A 10 Anthracene N/A 10 Benzidine N/A 50 Benzo(a)Anthracene N/A 10 Benzo(a)Pyrene N/A 10 3,4-Benzofluoranthene N/A 10 Benzo(ghi)Perylene N/A 20 Benzo(k)Fluoranthene N/A 10 Bis(2-Chloroethoxy)Methane N/A 10 Bis(2-Chloroeth yl)Ether N/A 10 Bis(2-Chloroisopropyl)Ether N/A 10 Bis(2-Ethylhexyi)Phthalate N/A 10 4-Bromophenyl Phenyl Ether N/A 10 Butylbenzyl Phthalate N/A 10 2-chloronaphthalene N/A 10 4-chlorophenyl phenyl ether N/A 10 Chrysene N/A 10 Dibenzo(a,h)Anthracene N/A 20 1,2-Dichlorobenzene N/A 10 1,3-Dichlorobenzene N/A 10 1,4-Dichlorobenzene N/A 10 3,3-Dichlorobenzidine N/A 50 Diethyl Phthalate N/A 10 Dimethyl Phthalate N/A 10 Di-n-Butyl Phthalate N/A 10 2,4-Dinitrotoluene N/A 10 2,6-Dinitroluene N/A 10 Di-n-Octyl Phthalate N/A 10 TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 23 of 66

Effluent Concentration (pg/I)* Pollutants Average Maximum No. of Samples MAL (pg/I) BASE/NEUTRAL COMPOUNDS (cont.) 1,2-Diphenyl Hydrazine (as Azobenzene) N/A 20 Fluoranthene N/A 10 Fluorene N/A 10 Hexachlorobenzene N/A 10 Hexachlorobutadiene N/A 10 Hexachlorocyclopentadiene N/A 10 Hexachloroethane N/A 20 Indeno(1,2,3-cd)pyrene N/A 20 Isophorone N/A 10 Naphthalene N/A 10 Nitrobenzene N/A 10 N-Nitrosodimethylamine N/A 50 N-Nitrosodi-n-Propylamine N/A 20 N-Nitrosodiphenylamine N/A 20 Phenanthrene N/A 10 Pyrene N/A 10 1,2,4-Trichlorobenzene N/A 10 PESTICIDES Aldrin N/A 0.05 alpha-BHC N/A 0.05 beta-BHC N/A 0.05 gamma-BHC N/A 0.05 delta-BHC N/A 0.05 Chlordane N/A 0.15 4,4-DDT N/A 0.1 4,4-DDE N/A 0.1 Dieldrin N/A 0.1 alpha-Endosulfan N/A 0.1 beta-Endosulfan N/A 0.1 Endosulfan Sulfate N/A 0.1 Endrin N/A 0.1 Endrin Aldehyde N/A 0.1 Heptachlor N/A 0.05 Heptachlor Epoxide N/A PCB-1254 N/A 1.0 PCB-1221 N/A 1.0 PCB-1242 N/A PCB-1232 N/A 1.0 PCB-1248 N/A 1.0 PCB-1260 N/A 1.0 PCB-1016 N/A 1.0 Toxaphene N/A 5.0

• Indicate units if different from pg/I TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 24 of 66

7. TABLE 7:

Please complete as directed and only for those parameters specified in Table 6 Required for all external outfalls which contain process wastewater. Not required for internal outfalls. Testing may be required for types of industry not specified in Table 6 for specific parameters if believed present (Instructions, Page 53). TABLE 7 Outfall No.: 003 -]C X-G Effluent Concentration (pgi)* PollutantsNubro Average Maximum of MAL (pgll) VOLATILE COMPOUNDS Samples Acrolein <50 1 50 Acrylonitrile <50 1 50 Benzene <10 1 10 Bromoform <10 1 10 Carbon Tetrachloride <10 1 10 Chlorobenzene <10 1 10 Chlorodibromomethane <10 1 10 Chloroethane <50 1 50 2-Chloroethylvinyl Ether <10 1 10 Chloroform <10 1 10 Dichlorobromomethane <10 1 10 1,1-Dichloroethane <10 1 10 1,2-Dichloroethane <10 1 10 1,1-Dichloroethylene <10 1 10 1,2-Dichloropropane <10 1 10 1,3-Dichloropropylene <10 1 10 Ethylbenzene <10 1 10 Methyl Bromide <50 1 50 Methyl Chloride <50 1 50 Methylene Chloride <20 1 20 1,1,2,2-Tetrachloroethane <10 1 10 Tetrachloroethylene <10 1 10 Toluene <10 1 10 1,2-Trans-Dichloroethylene <10 1 10 1,1,1 -Trichloroethane <10 1 10 1,1,2-Trichloroethane <10 1 10 Trichloroethylene <10 1 10 Vinyl Chloride <10 1 10 TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 22 of 66

Pollutants ACID COMPOUNDS 2-Chlorophenol <10 1 10 2,4-Dichlorophenol <10 1 10 2,4-Dimethylphenol <10 1 10 4,6-Dinitro-o-Cresol <50 1 50 2,4-Dinitrophenol <50 1 50 2-Nitrophenol <20 1 20 4-Nitrophenol <50 1 50 P-Chloro-m-Cresol <10 1 10 Pentalchlorophenol <50 1 50 Phenol <10 1 10 2,4,6-Trichlorophenol <10 1 10 BASE/NEUTRAL COMPOUNDS Acenaphthene N/A 10 Acenaphthylene N/A 10 Anthracene N/A 10 Benzidine N/A 50 Benzo(a)Anthracene N/A 10 Benzo(a)Pyrene N/A 10 3,4-Benzofluoranthene N/A 10 Benzo(ghi)Perylene N/A 20 Benzo(k)Fluoranthene N/A 10 Bis(2-Chloroethoxy)Methane N/A 10 Bis(2-Chloroethyl)Ether N/A 10 Bis(2-Chloroisopropyl)Ether N/A 10 Bis(2-Ethylhexyl)Phthalate N/A 10 4-Bromophenyl Phenyl Ether N/A 10 Butylbenzyl Phthalate N/A 10 2-chloronaphthalene N/A 10 4-chlorophenyl phenyl ether N/A 10 Chrysene N/A 10 Dibenzo(a,h)Anthracene N/A 20 1,2-Dichlorobenzene N/A 10 1,3-Dichlorobenzene N/A 10 1,4-Dichlorobenzene N/A 10 3,3-Dichlorobenzidine N/A 50 Diethyl Phthalate N/A 10 Dimethyl Phthalate N/A 10 Di-n-Butyl Phthalate N/A 10 2,4-Dinitrotoluene N/A 10 2,6-Dinitroluene N/A 10 Di-n-Octyl Phthalate N/A 10 TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 23 of 66

Effluent Concentration (pg/Il)* Pollutants Average Maximum No. of Samples MAL (pg/I) BASE/NEUTRAL COMPOUNDS (cont.) 1,2-Diphenyl Hydrazine (as Azobenzene) N/A 20 Fluoranthene N/A 10 Fluorene N/A 10 Hexachlorobenzene N/A 10 Hexachlorobutadiene N/A 10 Hexachlorocyclopentadiene N/A 10 Hexachloroethane N/A 20 Indeno(1,2,3-cd)pyrene N/A 20 Isophorone N/A 10 Naphthalene N/A 10 Nitrobenzene N/A 10 N-Nitrosodimethylamine N/A 50 N-Nitrosodi-n-Propylamine N/A 20 N-Nitrosodiphenylamine N/A 20 Phenanthrene N/A 10 Pyrene N/A 10 1,2,4-Trichlorobenzene N/A 10 PESTICIDES Aldrin N/A 0.05 alpha-BHC N/A 0.05 beta-BHC N/A 0.05 gamma-BHC N/A 0.05 delta-BHC N/A 0.05 Chlordane N/A 0.15 4,4-DDT N/A 0.1 4,4-DDE N/A 0.1 Dieldrin N/A 0.1 alpha-Endosu fan N/A 0.1 beta-Endosulfan N/A 0.1 Endosulfan Sulfate N/A 0.1 Endrin N/A 0.1 Endrin Aldehyde N/A 0.1 Heptachlor N/A 0.05 Heptachlor Epoxide N/A PCB-1254 N/A 1.0 PCB-1221 N/A 1.0 PCB-1 242 N/A PCB-1232 N/A 1.0 PCB-1248 N/A 1.0 PCB-1 260 N/A 1.0 PCB-1016 N/A 1.0 Toxaphene N/A 5.0

• Indicate units if different from Pg/i TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 24 of 66

8. TABLE 8 (DIOXINS/FURAN COMPOUNDS):

Please complete as directed. Not required for internal outfalls. (Instructions, Pages 53-54)

a. Are any of the following compounds manufactured and/or u sed in a process at t he facility? - Yes t-I No If yes, i ndicate w ith a ch eck mark the compound(s) which apply and provide a brief description of the conditions of its/their presence at the facility.

E- 2,4,5-trichlorophenoxy acetic acid (2,4,5-T) CAS #93-76-5 F-1 2-(2,4,5-trichlorophenoxy) propanoic acid (Silvex, 2,4,5-TP) CAS #93-72-1 F 2-(2,4,5-trichlorophenoxy) ethyl 2,2-dichloropropionate (Erbon) CAS #136-25-4 [- o,o-dimethyl o-(2,4,5-trichlorophenyl) phosphorothioate (Ronnel) CAS #299-84-3 [:] 2,4,5-trichlorophenol (TCP) CAS #95-95-4 E- Hexachlorophene (HCP) CAS #70-30-4

b. Do you k now or have any reason to believe that 2,3,7,8 Te trachlorodibenzo-P-Dioxin (TCDD) or any congeners of TCDD may be present in your effluent? El Yes W1 No If yes, provide a brief description of the conditions for its presence.

c. If your responded yes to either item a or b, complete Table 8 as instructed.

TABLE 8 Outfall No. [-_C [-- G Wastewater Sludge Equivalent Concentration Equivalents Concentration Equivalents MAL (ppq) Compound Factors (ppq) (ppq) (ppt) (ppt) 2,3,7,8-TCDD 1 10.0 1,2,3,7,8-PeCDD 0.5 50.0 2,3,7,8-HxCDDs 0.1 50.0 2,3,7,8-TCDF 0.1 10.0 1,2,3,7,8-PeCDF 0.05 50.0 2,3,4,7,8-PeCDF 0.5 50.0 2,3,7,8-HxCDFs 0.1 50.0 Total TCEQ-1 0055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 25 of 66

9. TABLE 9 (HAZARDOUS SUBSTANCES):

Proceed complete as directed. Not required for internal outfalls. (Instructions, Pages 55)

a. Are there any pollutants listed in the instructions (page 55) believed present in the discharge?

E-lYes ZNo

b. Are there pollutants listed in Item No. 1.d. on Page No. 1 of this technical report which are believed present in the discharge and have not been analytically quantified elsewhere in this application?

       -]Yes      -No If your responded yes to either item, complete Table 9 as instructed.

TABLE 9 Average Maximum No. of Analytical (pgll) (pg/I) Samples Method TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 26 of 66

WORKSHEET 4.0 RECEIVING WATERS THE FOLLOWING IS REQUIRED FOR ALL TPDES PERMIT APPLICATIONS

1. DOMESTIC DRINKING WATER SUPPLY (Instructions, Page 70)

Is t here a surface water intake for domestic drinking water supply I ocated w ithin 5 (five) miles downstream from the point/proposed point of discharge? E- Yes -No If yes, identify owner of the drinking water supply, the distance and direction to the intake, and locate and identify the intake on the USGS map. Indicate by a check mark that the requested information is provided: F

2. DISCHARGE INTO TIDALLY INFLUENCED WATERS (Instructions, Page 70)

a. Width of the receiving water at the outfall? N/A feet

b. Are there oyster reefs in the vicinity of the discharge? El Yes L-]No If yes, indicate approximate distance and direction from outfall(s):

N/A

c. Are there any sea grasses within the vicinity of the point of discharge?

R Yes -]No If yes, provide the distance and direction to the grasses: N/A

3. CLASSIFIED SEGMENT (Instructions, Page 70)

Is the discharge directly into (or within 300 feet of) a classified segment? El-Yes -- No If yes, stop here. It is not necessary to complete items 4 and 5 and it is n ot necessary to complete Worksheet 2.1. If no, complete items 4 and 5.

4. DESCRIPTION OF IMMEDIATE RECEIVING WATERS (Instructions, Page 71)

Name of the immediate receiving waters: Squaw Creek Reservoir

a. Check the appropriate description of the receiving waters I- Man-made Channel or Ditch F-- Stream or creek F-71 Lake or Pond Surface area 3,300 acres Average depth of the entire water body 46 feet Average depth of water body within a 50o-foot radius or the discharge point 25 feet F] Freshwater Swamp or Marsh FD] Tidal Stream, Bayou, or Marsh

[-I Open Bay [Z Other: If a man-made channel, ditch or stream was checked above, provide the following: TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 39 of 66

b. Check one of the following that best characterizes the area upstream of the discharge.

For new discharges, characterize the area downstream of the discharge (check one). F-1 Intermittent (dry for at least one week during most years) Fl Intermittent with Perennial Pools (enduring pools containing sufficient habitat to maintain significant aquatic life uses) F-1 Perennial (normally flowing) Check t he method u sed t o c haracterize t he a rea u pstream ( or d ownstream f or n ew dischargers): F-- USGS flow records F-1 personal observation i-1 historical observation by adjacent landowner(s) Dý others, specify:

c. List t he n ame(s) o f a 11 p erennial s treams t hat j oin t he r eceiving water within t hree miles downstream of the discharge point:

Squaw Creek

d. Do the receiving water characteristics change within three miles downstream o ft he discharge? (e.g., natural or man-made dams, ponds, reservoirs, etc W1 Yes E]No If yes, discuss how:

Changes from a reservoir to a stream

e. Provide general observations of the water body during normal dry weather conditions:

Date and time of observation: Normal reservoir conditions. July 23, 2014 Was water body influenced by stormwater runoff during observations? E- Yes ZNo

5. GENERAL CHARACTERISTICS OF WATER BODY (Instructions, Page 71)

a. Is the receiving water upstream of the discharges or proposed discharge site influenced by (check as appropriate):

L- oil field activities i-1 urban runoff MV agricultural runoff F-- septic tanks F-1 upstream discharges [-] others, specify below TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 40 of 66

b. Uses of water body observed or evidences of (check as appropriate):

F-- livestock watering E- contact recreation - irrigation withdrawal F-D non contact recreation E- fishing E- navigation

       -  domestic water supply                    Z industrial water supply        [- picnic park activities
       -  others, specify below C. Check one of the following to best describe the aesthetics of the receiving water and the surrounding area:
        - Wilderness: outstanding natural beauty; usually wooded or unpastured area: water clarity exceptional

[R] Natural Area: trees and/or native vegetation common; some development evident (from fields, pastures,dwellings); water clarity discolored

       - Common Setting: not offensive, developed but uncluttered; water may be colored or turbid FD Offensive: stream does not enhance aesthetics; cluttered; highly developed; dumping areas; water discolored TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report                Page 41 of 66

WORKSHEET 5.0 SEWAGE SLUDGE MANAGEMENT AND DISPOSAL THE FO LLOWING I S R EQUIRED FO R A LL T PDES PER MIT A PPLICATIONS THAT M EET T HE CONDITIONS AS OUTLINED I N T ECHNICAL REPORT 1.o, ITEM NO. 7.

1. SEWAGE SLUDGE SOLIDS MANAGEMENT PLAN (Instructions, Page 74)

a. Is this a new permit application or an amendment permit application?

El Yes W1 No

b. Does the facility discharge in the Lake Houston watershed?

El Yes W1 No If yes to either item a or b, indicate by a check mark that a solids management plan was provided with the application. L-

2. SEWAGE SLUDGE MANAGEMENT AND DISPOSAL (Instructions, Pages 74)

a. Please check t he current sludge di sposal m ethod(s). More than one m ethod c an b e checked.

F71 Permitted landfill

        -- Marketing and distribution by the permittee
        -- Registered land application site F-- Composted by the permittee F-1 Surface disposal site (sludge monofill)
       --i Transported to another WWTP (written statement or contractual agreement required)

F-- Beneficial land application as authorized in the existing permit

b. Disposal site name: Republic Itasca Landfill TCEQ Permit/Registration Number: 241D County where disposal site is located: Hill

c. Method of Transportation (truck, train, pipe, other): Truck Hauler Registration Number: ILD981957236 / TXD980796338 Transported in: L-i liquid [I semi-liquid EL semi-solid Z7 solid state Land application for: EL Reclamation Lj Soil Conditioning

d. If the existing permit contains authorization for sludge land application, composting, marketing and distribution of sludge, and/or sludge lagoons and authorization t o renew the activity is being s ought in the application, the appropriate sections oft he Sludge Technical Report must be provided.

TCEQ-10055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 45 of 66

3. PERMIT A UTHORIZATION FO RS EWAGE S LUDGE D ISPOSAL (Instructions, Page 75)

Are you requesting new authorization to beneficially land apply sewage sludge at this site or a site under your direct control? E- Yes - No Are you requesting new authorization to market and distribute sewage sludge at this facility or a facility under your direct control? E- Yes W] No Are you requesting new authorization to compost sewage sludge? D Yes Z No Are you requesting new authorization to surface dispose sewage sludge at this site or site under your direct control? ED Yes Z No Are you requesting new authorization to incinerate sewage sludge at this site or site under your direct control? E--Yes IZ-No If yes to a ny o f the a bove it ems, p rovide t he information required in the S LUDGE TECHNICAL REPORT. New authorization for beneficial land application, incineration, and sludge lagoons in the TPDES or TLAP permits requires a major a mendmentto t he p ermit. New authorization for composting may require a major amendment to the permit. See the instructions for an explanation whether a major amendment is required or if authorization for composting can be added through the renewal process. TCEQ-1 0055 (05/15/2012) Industrial Wastewater Permit Application Technical Report Page 46 of 66

Attachment A Payment of Application Fee Luminant Generation Company LLC Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Administrative Report

Rafael Flores Luminant Power Executive Vice President P 0 Box 1002 01___ & Chief Nuclear Officer 6322 North FM 56 Refael.flores@luminant.com Glen Rose, Texas 76043 Luminant T 254.897.5550 C 817.559.0403 F 254.897.6652 Delivere'd Via FedEx TXX# 14111 September 2, 2014 Texas Commission on Environmental Quality Financial Administration Division Cashiers Office, MC-214 12100 Park 35 Circle Austin, TX 78753 Re: Luminant Generation Company LLC Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Permit Renewal Application Fee

Dear Sir/Madam:

In accordance with the rules and regulations of the Texas Commission on Environmental Quality (TCEQ), Luminant Generation Company LLC hereby submits an application fee in the amount of

  $2,015.00 for the renewal of Comanche Peak Nuclear Power Plant's TPDES Permit No. WQ0001854000.

The permit application is also planned for submittal on September 2, 2014. Per TCEQ rules and regulations, the permit application will be submitted to the Water Quality Division, Applications Review and Processing Team (MC148). If you have any questions, please contact Ryan Bayle at 214-875-8294 or via e-mail at ryan.bayle@luminant.com. Sincerely, Rafael Flores By David P. Duncan, Director, Environmental Generation RMB Enclosures cc: US Nuclear Regulatory Commission, Document Control Desk, 11555 Rockville Pike, Rockville, MD 20852

Attachment B USGS SITE MAP AND FACILITY MAP Luminant Generation Company LLC Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Administrative Report Technical Report

THIS PAGE IS AN OVERSIZED DRAWING OR FIGURE, THAT CAN BE VIEWED AT THE RECORD TITLED: USGS SITE MAP. AND FACILITY MAP HILL ,CITY, TX 2013 WITHIN THIS PACKAGE... D-04

THIS PAGE IS AN OVERSIZED DRAWING OR FIGURE, THAT CAN BE VIEWED AT THE RECORD TITLED: USGS SITE MAP AND FACILITY MAP NEMO , TX 2013 WITHIN THIS PACKAGE... D-05

THIS PAGE IS AN OVERSIZED DRAWING OR FIGURE, THAT CAN BE VIEWED AT THE RECORD TITLED: ATTACHMENT B, USGS SITE MAP AND FACILITY MAP COMANCHE PEAK NUCLEAR POWER PLANT FACILITY MAP WITHIN THIS PACKAGE... D-06X I

Attachment C General Description Luminant Generation Company LLC Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Technical Report

LUMINANT GENERATION COMPANY LP COMANCHE PEAK NUCLEAR POWER PLANT GENERAL DESCRIPTION The Comanche Peak Nuclear Power Plant (CPNPP) is a two-unit nuclear-powered steam electric generating facility owned and operated by Luminant Generation Company LP (Luminant). The facility is located on the west side of Squaw Creek Reservoir 6322 North FM 56,. Glen Rose, TX 75043, Somervell County, Texas. Wastewaters are discharged to Squaw Creek Reservoir, thence to Squaw Creek, thence to the Paluxy River in Segment No. 1229 of the Brazos River Basin. Squaw Creek Reservoir is the source of all water used for cooling and industrial use. When needed, make-up water is provided to the reservoir via a pipeline from nearby Lake Granbury. Potable water is obtained from groundwater and is delivered by Company-owned on-site wells. The generating capacity and date of initial commercial operation for each generating unit are as follows: Unit Capacity (MW) Date 1 1150 1990 2 1150 1993 Wastewaters produced at the plant site are collected, treated and discharged via five (5) permitted outfalls. Luminant Generation's operating procedures and wastewater handling practices are designed both to comply with all applicable environmental regulations and to provide operational flexibility wherever practical. The Company is aware of an increased potential for macroinvertebrate invasion of any plant water system. In the event of such occurrence, the Company is prepared to treat its water on a static or flow through basis with the following non-oxidizing biocide: Buckman Bulab 6002 Poly[oxyethylene(dimethyliminio)ethylene(dimethyiminio)ethylene dichloride] or GE Betz Spectrus CT-1300 [N-alkyldimethylbenzylammonium chloride (Quat); dodecylguanidine hydrochloride (DGH); ethylene glycol; isopropanol; ethanol]; or by supplementing chlorination with ammonia to create chloramines. The five (5) permitted outfalls are listed below and a description of the wastewater system pertinent to each outfall follows: Outfall Type of Wastewater 001 Once-through and auxiliary cooling water/previously monitored effluents 002 Safe Shutdown Impoundment containing cooling water, low volume wastes (service water), and stormwater runoff 003 Sanitary sewage effluent 004 Low volume wastewater/previously monitored effluents 104 Metal cleaning wastes

Comanche Peak Nuclear Power Plant General Description Page 2 Outfall 001 (Once-through and Auxiliary Coolingq) Water from Squaw Creek Reservoir is withdrawn at the intake structure, treated chemically and then passed through the main condensers or auxiliary heat exchange equipment to condense steam or cool system components. The intake water is treated with sodium hypochlorite to prevent biofouling and sodium bromide as a chlorine enhancer to improve the hypochlorite conversion and thereby reduce sodium hypochlorite feed rates. Additionally, an ammonia supplement to chlorination may be utilized to facilitate a more complete conversion from free chlorine to chloramines. Application of these substances is intermittent and does not exceed the regulatory maximum frequency of two hours/unit/day. A mixture of hydroxyethylidine diphosphoric acid (HEDP)/ phosphoric acid/ polyacrylic acid is also added as a corrosion/scale inhibitor. This "once-through" cooling water, elevated in temperature by the cooling process, and previously monitored effluents from Outfalls 004 and 104 are then discharged via Outfall 001 back to the reservoir through a submerged discharge structure. A small slipstream, approximately 18.7 MGD, can be diverted through an opened valve for discharge to the Safe Shutdown Impoundment (SSI) to provide make-up and flow to this structure (see Outfall 002). Outfall 002 (Safe Shutdown Impoundment) The Safe Shutdown Impoundment (SSI) is a safety component of the facility required by the Nuclear Regulatory Commission (NRC) to provide a source of emergency cooling water for safe reactor shutdown in the unlikely event of a failure of the Squaw Creek Reservoir dam. This 367 acre-foot impoundment was created by constructing an earthen dam across an arm of the reservoir. The SSI and reservoir are connected by an equalization channel and an underwater weir (top elevation 769.5 ft MSL) located immediately southwest of the SSI dam. Outfall 002 is located in this channel; discharge occurs whenever there is a net flow of water into the SSI. This net flow will normally be achieved by diverting approximately 18.7 MGD of condenser cooling water as makeup to the SSI, if necessary. To date, this diversion of cooling water has not been necessary. Storm water runoff from portions of the plant area and surrounding undeveloped area, including small construction sites within this drainage area, also contributes water to this impoundment; however, this does not constitute a discharge of the Outfall because a similar quantity of runoff enters the reservoir on the other side of the equalization channel. Therefore, a storm event does not create a discharge of the SSI. The Service Water System provides once-through cooling to plant components designated as safety-related reactor support systems by the NRC. To assure the availability of this cooling water under emergency conditions, the water must be extracted from the SSI; it is then circulated through reactor support components and is discharged back to the SSI. NRC regulations require treatment of this safety-related auxiliary cooling system at the Service Water System intake structure to assure its reliability. Treatment consists of Buckman Bulab 6002 {Poly [oxyethylene (dimethyliminio) ethylene (dimethyliminio) ethylene dichloride]} as a non-oxidizing biocide; sodium hypochlorite as a biocide; sodium bromide as chlorine enhancer to improve sodium hypochlorite conversion and thereby reduce sodium hypochlorite feed rates; and a coordinated system of hydroxyethylidine diphosphoric acid/ orthophosphate/ polyacrylate or polyacrylate co-polymer as a corrosion and deposition inhibitor. Additionally, an ammonia supplement to chlorination may be utilized to facilitate a more complete conversion from free chlorine to chloramines.

Comanche Peak Nuclear Power Plant General Description Page 3 Outfall 003 (Sanitary Sewage Effluent) Domestic waste is received from Plant potable water systems and is discharged from a normal 0.090 MGD capacity treatment facility that employs the extended aeration, activated sludge return process for treatment of domestic sanitary sewage. The facility is designed as a single, integral, above ground installation consisting of a surge basin, grinder pumps, aeration basin, circular clarifier, aerobic digester and a sludge holding basin. Treated effluent is routed through an ultraviolet disinfection unit to a 3500 gallon contact chamber, then through a V-notch weir to the final discharge. Sludge from the sludge holding basin is transferred to a sludge dewatering facility for volume reduction. Outfall 004 (Low Volume Wastes) Certain low volume wastes may become contaminated with low level radioactive material. These wastes must comply with both TCEQ-TPDES effluent limitations and the limitations imposed by the NRC. As a result, two separate low volume waste treatment systems are employed; as described below, one system is dedicated to the treatment of these potentially radioactive wastes and the other treats wastes generated from non-radioactive low volume sources. The potentially low level radioactive low volume wastes are principally composed of wastewater from primary support systems which include equipment, floor, laboratory and sample drains, as well as the periodic drainage of various system components. These wastes are collected in holding tanks and are then processed, as necessary, to meet limitations imposed by the NRC Off-Site Dose Calculation Manual (ODCM) and TPDES, respectively. Treated effluent is collected in a monitoring tank where it is sampled and analyzed for compliance with both TPDES effluent limitations and the NRC ODCM for radioactive parameters. The monitored wastes are then batch discharged via Outfall 004 into the condenser cooling water. The discharge of these potentially low-level radioactive low volume wastes into the condenser cooling water is a practice approved by the NRC. The non-radioactive low volume wastes from secondary support systems include equipment, floor, laboratory, and sample drains; water treatment wastes from demineralizer regeneration, reverse osmosis (R.O.) systems operation, condensate polisher system and other miscellaneous water treatment blowdown and backwash operations; periodic drainage and flushing of various system components; and intermittent boiler blowdown from the plant's auxiliary boiler. The R.O. system requires periodic membrane cleaning operations which may include the use of Buckman Bulab 6013 (potassium dimethyldithiocarbamate) and Buckman Bulab 6042 (2,2-dibromo-3-nitrilopropionamide) biocides. No detectable residual biocide would be expected to remain in the effluent from the WMS. These low volume wastes and the previously monitored wastes discharged from Outfall 104 are routed to a low volume Waste Management System (WMS) and discharged via Outfall 004. The WMS consists of the following components: surge basin, API oil/water separator, clarifier blowdown and condensate polisher decant basin, three separate but interconnected low volume waste retention ponds with double synthetic'liners and leachate collection systems, and a synthetic lined concrete equalization basin. The complete WMS provides for oil and grease removal, suspended solids reduction through settling and the addition of polymer, and pH control through addition of acid or

Comanche Peak Nuclear Power Plant General Description Page 4 caustic. Due to the static nature of the water contained in the low volume waste retention ponds, there is an increased potential for algal growth. In the event of such occurrence, the Company may treat this water on a static basis with sodium hypochlorite, and then verify no detectable sodium hypochlorite prior to discharge. The treated non-radioactive low volume wastes are normally commingled with the wastes which are potentially low level radioactive and are discharged via Outfall 004 to the condenser cooling water; the waste streams are sampled separately prior to mixing with the cooling water for compliance with the appropriate effluent limitations. An alternative practice, which has been utilized only on rare occasions, is to discharge the treated non-radioactive wastes via Outfall 004 directly to Squaw Creek Reservoir; this approach produces two separately discharging waste streams. Appropriate physical or mathematical flow-weight compositing is then employed for determining and reporting compliance with Outfall 004 limitations. In addition to the low volume wastes described above, some storm water runoff may be discharged via this outfall. This consists of runoff from diked chemical storage areas and transformers, as well as small construction sites, which is loaded into tanker trucks and transported to the Outfall 004 discharge location. Outfall 104 (Metal Cleaning Wastes) A metal cleaning waste pond has been dedicated for the storage and treatment of metal cleaning wastes. Metal cleaning wastes are generated by the chemical cleaning of plant equipment and are evaluated for treatment prior to their collection and retention in the pond. Unsuitable wastes are treated and/or disposed by alternative methods; e.g., off-site contract disposal. Wastewater in the pond, as well as treatable metal cleaning wastes which might be collected in temporary facilities (frac tanks), is treated for metals and pH adjustment prior to discharge via Outfall 104 to the Low Volume Waste Ponds associated with Outfall 004. The treated wastes so discharged will be commingled as a previously monitored effluent with the non-radioactive low volume wastes prior to discharge via Outfall 004.

Attachment E Boiler Chemical Additives Luminant Generation Company LLC Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001 854000 Technical Report

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Auxiliary Boiler Chemical Additives

a. Manufacturers Product Identification Number: Hydrazine

b. Product Use: Oxygen scavenger

c. Chemical Composition: See attached data sheets

d. Classification (non-persistent, persistent or bioaccumulative): Non-persistent

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Intermittent; as needed

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not Available

i. Outfall: 004

A CArch. ARLMAHChemicals, MATERIAL SAFETY

         &ýCHOInc.                                                                  DATA SHEET FOR ANY EMERGENCY, 24 HOURS / 7 DAYS, CALL:                                     1-800-654-6911 (OUTSIDE USA: 1-423-780-2970)

FOR ALL TRANSPORTATION ACCIDENTS, CALL CHEMTREC: 1-800-424-9300 (OUTSIDE USA: 1-703-527-3887) FOR ALL MSDS QUESTIONS & REQUESTS, CALL: 1-800-511-MSDS (OUTSIDE USA: 1-423-780-2347) PRODUCT NAME: 35% HYDRAZINE SOLUTION

1. PRODUCT AND COMPANY IDENTIFICATION REVISION DATE: 12/15/2011 Arch Chemicals, Inc. SUPERCEDES. 01/26/2010 501 Merritt 7 PO Box 5204 Norwalk, CT 06856-5204 MSDS Number: 000000000376 SYNONYMS: Hydrazine hydrate CHEMICAL FAMILY: Hydrazine DESCRIPTION / USE Corrosion inhibitor for boilers FORMULA: N2H4

2. HAZARDS IDENTIFICATION OSHA Hazard Toxic by ingestion, dermal contact, and inhalation, Possible carcinogen.,

Classification Eye, skin and respiratory irritant, Skin sensitizer, Lung, liver, kidney and nervous system toxin Routes of Entry: Inhalation, skin, eyes, ingestion Chemical Interactions: No known or reported interactions. Medical Conditions Aggravated: Liver, kidney, respiratory and central nervous system disorders Human Threshold Response Data Odor Threshold HYDRAZINE 3.7 ppm Irritation Threshold HYDRAZINE Not established. 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 1 of 12

AZm MATEIA SAFT A&C~e Chemicals, Inc1. DAT SHE Hazardous Materials Identification System / National Fire Protection Association Classifications Hazard Ratings: Health Flammability Physical / Instability PPI / Special hazard. HMIS 2* 0 0 NFPA 2 0 0 Immediate (Acute) Health Effects Inhalation Toxicity: Toxic by inhalation. High concentrations are moderately irritating to the eyes, nose, throat, and lungs. This product is rapidly absorbed through the lungs. Immediate and prolonged contact may result in the following: damage to the liver and kidneys with symptoms of vomiting, diarrhea, nausea, dizziness and convulsions. Skin Toxicity: Toxic if absorbed through the skin. Skin contact may cause moderate irritation consisting of transient redness and swelling. This irritant effect would not be expected to result in permanent damage. Dermal contact may cause defatting of skin and/or dermatitis. This product is rapidly absorbed through the skin, and may result in the following: damage to the liver and kidneys with symptoms of vomiting, diarrhea, nausea, dizziness and convulsions. Eye Toxicity: Contact may cause moderate irritation consisting of transient redness, swelling, and mucous membrane discharge to the conjunctiva. No corneal involvement or visual impairment is expected. Ingestion Toxicity: Toxic if swallowed. Ingestion may cause severe irritation of the gastrointestinal tract and may also cause gastrointestinal discomfort with any or all of the following symptoms: nausea, vomiting or diarrhea. This product is rapidly absorbed through the lungs. Immediate and prolonged contact may result in the following: damage to the liver and kidneys with symptoms of vomiting, diarrhea, nausea, dizziness and convulsions. Acute Target Organ Toxicity: May cause skin, eye and mucous membrane irritation (includes upper respiratory tract). Ingestion may cause gastrointestinal discomfort., Damage occurs to liver, kidney, central nervous system, and lungs. Prolonged (Chronic) Health Effects Carcinogenicity: The International Agency for Research on Cancer (IARC) has classified this product or a component of this product as a Group 2B substance, Possibly Carcinogenic to Humans. Reproductive and Reproductive and/or developmental toxicity was observed in laboratory Developmental Toxicity: animals only at high doses that were maternally toxic. Inhalation: Prolonged or repeated exposure may cause continuous bronchitis. Skin Contact: Prolonged or repeated exposure may cause severe irritation. Dermal contact may cause defatting of skin and/or dermatitis. Skin Absorption: Prolonged or repeated exposure, may result in toxic amounts being absorbed through the skin. 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 2 of 12

MATERIAL SAFETY SChemicals,

       =RýMIFH*                  hIn.                                                 DATA SHEET Ingestion:                          Chronic ingestion of this product may cause severe irritation and possible corrosive effects.

Sensitization: May cause allergic skin sensitization in some individuals. Chronic Target Organ Toxicity: Liver, Kidneys, Lungs, Central nervous system Supplemental Health Hazard No additional health information available. Information :

3. COMPOSITION / INFORMATION ON INGREDIENTS CAS OR CHEMICAL NAME CAS #  % RANGE HYDRAZINE 302-01-2 30-40

4. FIRST AID MEASURES Inhalation: IF INHALED: Remove individual to fresh air. Seek medical attention if breathing becomes difficult or if respiratory irritation develops. If not breathing, give artificial respiration. Call for medical assistance.

Skin Contact: IF ON SKIN: Immediately flush skin with plenty of water for 15 minutes. If clothing comes in contact with the product, the clothing should be removed immediately and disposed of. Call a physician. Eye Contact: IF IN EYES: Immediately flush eyes with plenty of water for at least 15 minutes. Seek medical attention immediately. Ingestion: IF SWALLOWED: Call a physician immediately. DO NOT induce vomiting unless directed to do so by a physician. Never give anything by mouth to an unconscious person. Notes to Physician: Pyridoxine (Vitamin B6) has been used successfully to treat the neurological symptoms of hydrazine exposure.

5. FIRE FIGHTING MEASURES Flammability Summary (OSHA): Product is not known to be flammable, combustible, pyrophoric or explosive.

Flammable Properties Flash Point: Material is water-based and will not flash. Autoignition Temperature: Not applicable Fire / Explosion Hazards: Material will not ignite or burn. 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 3 of 12

Arch Audi.m MATERIAL SAFT

      -AICH             ___Inc. Chemicals,                                      DAT       SHE Extinguishing Media:                Water is the preferred extinguishing media as it will dilute the material resulting in a non-flammable mixture. Use alcohol resistant foam, carbon dioxide, dry chemical, or vaporizing liquid extinguishing agents. Water spray or fog may also be effective for extinguishing or to absorb heat and keep exposed material from being damaged by fire.

Fire Fighting Instructions: Response to this material requires the use of a full encapsulated suit and full-face (NIOSH approved) self-contained breathing apparatus (SCBA). Use water to cool containers. Hazardous Combustion Products: Ammonia, Hydrogen Upper Flammable / Explosive Limit, % in air: Not applicable Lower Flammable / Explosive Limit, % in air: Not applicable

6. ACCIDENTAL RELEASE MEASURES Personal Protection for Emergency Response to this material requires the use of a full encapsulated suit Situations: and full-face (NIOSH approved) self-contained breathing apparatus (SCBA).

Spill Mitigation Procedures Air Release: Vapors may be suppressed by the use of water fog. Contain all liquid for treatment and/or disposal as a (potential) hazardous waste. Water Release: This material is heavier than water. This material is miscible in water. Notify all downstream users of possible contamination. Divert water flow around spill if possible and safe to do so. Land Release: Dike spill area as soon as possible. Dilute the spilled material to about 10% with water. Neutralize the diluted material by slowly adding a 5-8% calcium hypochlorite solution until all the diluted material has been reacted. DO NOT ADD DRY CALCIUM HYPOCHLORITE TO THE SPILL AS A VIOLENT REACTION MAY RESULT. If unable to remove as a liquid, absorb in clay, sand or a commercial absorbent. Do not place spill materials back in their original containers. This substance cannot be removed from leather. All contaminated leather articles should be rinsed with water and discarded. 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 4 of 12

4Z Poch MATERAL SAET AMhemicals. DAT SHE Inc. Additional Spill Information : If this material is released into a work area, evacuate the area immediately. Hazardous concentrations in air may be found in local spill area and immediately downwind. Utilize emergency response personal protection equipment prior to the start of any response. Stop source of spill as soon as possible and notify appropriate personnel. This material may be neutralized for disposal; you are requested to contact Arch Chemicals at 1-800-654-6911 before beginning any such procedure. Containerize and label properly and remove to a secure location for proper disposal. Decontaminate all clothing and the spill area using a detergent and flush with large amounts of water.

7. HANDLING AND STORAGE Handling: Avoid contact with material, avoid breathing vapors, use only in a well ventilated area, use bonding and grounding when transferring quantities of material. Do not take internally. Avoid contact with eyes, skin, and clothing. Upon contact with skin or eyes, wash off with water.

Storage: Store in a cool dry ventilated location, away from sources of ignition or other incompatible conditions and chemicals. Keep container(s) closed. Avoid direct exposure to sunlight or ultraviolet (UV) light sources. Keep under a nitrogen blanket. Shelf Life Limitations: 5 Years if not opened and exposed to the atmosphere. Material older than five years should be retested before use. Incompatible Materials for Storage: Strong oxidizing agents metal oxides organic materials with high surface area such as rags, cotton waste, sawdust, etc. peroxides Do Not Store At temperatures Above: 51 DEG°C / 123 DEG°F

8. EXPOSURE CONTROLS / PERSONAL PROTECTION Ventilation: Local exhaust ventilation or other engineering controls are normally required when handling or using this product to keep airborne exposures below the TLV, PEL or other recommended exposure limit.

Protective Equipment for Routine Use of Product Respiratory Protection: Wear a NIOSH approved respirator if any exposure occurs. Respirator Type: NIOSH approved positive pressure supplied air respirator. Skin Protection : Wear impervious gloves, boots and apron to avoid skin contact. A full impervious suit is recommended if exposure is possible to a large portion of the body. A safety shower should be provided in the immediate work area. 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 5 of 12

Arch DATA A ARCH.Is Eye Protection: Use chemical goggles and a faceshield. Emergency eyewash should be provided in the immediate work area. Protective Clothing Type: Butyl rubber, Nitrile, Neoprene Exposure Limit Data CHEMICAL NAME CAS # Name of Limit Exposure HYDRAZINE 302-01-2 ACGIH 0.01 ppm TWA HYDRAZINE 302-01-2 OSHA Z1 1 ppm TWA 1.3 mg/m3 TWA

9. PHYSICAL AND CHEMICAL PROPERTIES Physical State: liquid Form clear, liquid Color: colorless Odor: Ammonia Molecular Weight: 32.04 Specific Gravity: 1.0270 pH: 10.1 - 10.7 (1% solution in neutral, distilled water)

Boiling Point: 109 DEG°C / 228 DEG°F Freezing Point: -65 DEG°C / -85 DEG°F Melting Point: No data Density: 1.0270g/cc Vapor Pressure: 22.00000000 mmHg (total pressure) (@ 30 Deg. C) Vapor Density: No data Viscosity: No data Fat Solubility: No data Solubility in Water: Completely miscible Partition coefficient n- No data octanol/water: Evaporation Rate: No data Oxidizing: No data Volatiles, % by vol.: 100.000% VOC Content No data HAP Content No data

10. STABILITY AND REACTIVITY 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 6 of 12

MATERIA SAFT AI~hO ARHm In. cals, Stability and Reactivity Summary: Corrosive. Strong reducing agent. May become unstable at elevated temperatures and/or pressure. Not sensitive to mechanical shock. Product will not undergo hazardous polymerization. Conditions to Avoid: Temperatures above the flash point in combination with sparks, open flames, or other sources of ignition., Avoid contact with organic materials. Chemical Incompatibility: Strong oxidizing agents, peroxides, nitrogen tetroxide, fuming nitric acid, fluorine, halogen fluorides, metal oxides such as those of iron, copper, lead, manganese, and molybdenum, Package only in Teflon high density polyethylene or 304L or 347 stainless steels containing less than 0.5% molybdenum. Hazardous Decomposition Products: Ammonia, Hydrogen Decomposition Temperature: > 250 DEG°C - , > 482 DEG°F-

11. TOXICOLOGICAL INFORMATION Component Animal Toxicology Oral LD50 value:

HYDRAZINE LD50 60 mg/kg Rat Component Animal Toxicology Dermal LD50 value: HYDRAZINE LD50 91 mg/kg Rabbit Component Animal Toxicology Inhalation LC50 value: HYDRAZINE Inhalation LC50 4.00 h 570 ppm Rat HYDRAZINE Inhalation LC50 1 h 1.49 MG/L Rat HYDRAZINE Inhalation LC50 4.00 h 0.747 MG/L Rat Product Animal Toxicity Oral LD50 value: LD50 = 185 mg/kg Rat Dermal LD50 value: LD50 = 420 mg/kg Rabbit Inhalation LC50 Inhalation LC50 1 h (aerosol), (Nose Only) Approximately 7.7 MG/L Rat value: Inhalation LC50 4 h (aerosol), (Nose Only) Approximately 1.9 MG/L Rat Skin Irritation: This material is expected to be moderately irritating. Eye Irritation: This material is expected to be moderately irritating. 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 7 of 12

AZ W Arch MAERA SAET ""mCH 1ý1 ýý\,e "imemm'"'s, Skin Sensitization: Positive skin sensitizer, guinea pig - Buehler Method, This material tested positive for skin sensitization in humans., Repeated or prolonged skin contact may cause some individuals to develop skin rash and other skin complications due to allergic skin sensitization. Acute Toxicity: May cause skin, eye and mucous membrane irritation (includes upper respiratory tract). Ingestion may cause gastrointestinal discomfort.Damage occurs to liver, kidney, central nervous system, and lungs. Subchronic / Chronic Damage occurs to liver, kidney, central nervous system, and lungs. Toxicity: HYDRAZINE Damage occurs to liver, kidney, central nervous system, and lungs. Reproductive and Reproductive and/or developmental toxicity was observed in laboratory Developmental Toxicity: animals only at high doses that were maternally toxic. Mutagenicity: This product has been tested and was found to be mutagenic. Carcinogenicity: This chemical is considered to be a suspect human carcinogen based on animal data. HYDRAZINE The International Agency for Research on Cancer (IARC) has classified this product or a component of this product as a Group 2B substance, Possibly Carcinogenic to Humans.

12. ECOLOGICAL INFORMATION Overview: Moderately toxic to fish and other aquatic organisms.

Ecological Toxicity Values for: HYDRAZINE Rainbow trout (Salmo gairdneri), - 76 h LC50 6 mg/I Fathead minnow (Pimephales - (flow-through). 96 h LC50 5.98 mg/I promelas), Channel Catfish (Ictalurus - (static). 96 h LC50 1.0 mg/I punctatus rafinesque), Bluegill - (static). 96 h LC50 1.08 mg/I 1(35% Hydrazine) Bluegill - (nominal, static). 96 h LC50 4.2 mg/ Rainbow trout (Salmo gairdneri), - (nominal, static). 96 h LC50 4.3 mg/ I (35% Hydrazine) Daphnia magna, - 24 h EC50 2.3 mg/I Daphnia magna, (nominal, static). 48 h LC50 0.46 mrig/1(35% Hydrazine) 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 8 of 12

MATERAL SAET SChemicals, Green agIanmC. Green algae (Selenastrum -72 h EC50 0.0061 mg/I capricornutum),

13. DISPOSAL CONSIDERATIONS CARE MUST BE TAKEN TO PREVENT ENVIRONMENTAL CONTAMINATION FROM THE USE OF THE MATERIAL. THE USER OF THE MATERIAL HAS THE RESPONSIBILITY TO DISPOSE OF UNUSED MATERIAL, RESIDUES AND CONTAINERS IN COMPLIANCE WITH ALL RELEVANT LOCAL, STATE AND FEDERAL LAWS AND REGULATIONS REGARDING TREATMENT, STORAGE AND DISPOSAL FOR HAZARDOUS AND NONHAZARDOUS WASTES.

Waste Disposal Summary: If this product becomes a waste, it will be a hazardous waste. Disposal Methods : As a hazardous liquid waste it must be disposed of in accordance with local, state and federal regulations. Potential US EPA Waste Codes: U133

14. TRANSPORT INFORMATION Land (US DOT): UN3293 RQ, HYDRAZINE, AQUEOUS SOLUTION 6.1 III MARINE POLLUTANT Water (IMDG): UN3293 HYDRAZINE, AQUEOUS SOLUTION, 6.1 III MARINE POLLUTANT Flash Point Material is water-based and will not flash.

Air (IATA): CONTACT ARCH'S TRANSPORTATION DEPARTMENT, Emergency Response Guide Number: ERG # 152 EMS: F-A, S-A

15. REGULATORY INFORMATION UNITED STATES:

Toxic Substances Control Act (TSCA): The components of this product are listed on the TSCA Inventory of Existing Chemical Substances. EPA Pesticide Registration Number: None established FIFRA Listing of Pesticide Chemicals Not registered in the US under FIFRA.Not registered in the US (40 CFR 180): under FIFRA. 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 9 of 12

ANArch j6"NeInc. Chemicals, I Superfund Amendments and Reauthorization Act (SARA) Title II: Hazard Categories Sections 311 / 312 (40 CFR 370.2): Health Immediate (Acute) Health Hazard, Delayed (Chronic) Health Hazard Physical None Emergency Planning & Community Right to Know (40 CFR 355, App. A): Extremely Hazardous Substance Section 302 - Threshold Planning Quantity: ZUSSAR302 TPQ (threshold planning quantity) Reportable Quantity (49 CFR 172.101, Appendix): ZUSCERCLA Reportable quantity Hydrazine Value: llbs ZUSSAR302 Reportable quantity Hydrazine Value: 1lbs SuDplier Notification Requirements (40 CFR 372.45). 313 Reportable Components ZUSSAR313 De minimis concentration Hydrazine Value: < 0.1% by weight Clean Air Act Toxic ARP Section 112r: CAA 112R None established Clean Air Act Socmi: HON SOC None established Clean Air Act VOC Section 111: CAA 111 None established Clean Air Act Haz. Air Pollutants Section 112: ZUSCAAHAP ZUSCAAHRP CAA AP None established State Right-to-Know Regulations Status of Ingredients Pennsylvania: 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 10 of 12

Arch MATERIA SAFT DAA SHE

      &CHO                    Inc.

CAS # COMPONENT NAME 302-01-2 HYDRAZINE ZUSPARTK Pennsylvania: Hazardous substance list 1989-08-11 HYDRAZINE Environmental hazard, Special hazardous substance Pennsylvania: Hazardous substance list 1990-01-01 HYDRAZINE (ANHYDROUS) hazardous substance Pennsylvania: Hazardous substance list 1989-08-11 HYDRAZINE (ANHYDROUS) New Jersey: GAS# COMPONENT NAME 302-01-2 HYDRAZINE ZUSNJRTK New Jersey Right to Know Hazardous Substance List (RTK-HSL) 2007-03-01 HYDRAZINE Special Health Hazard - Carcinogen, Special Health Hazard - Corrosive, Special Health Hazard - Flammable - Fourth Degree, Special Health Hazard - Mutagen, Special Health Hazard - Reactive - Third Degree, Special Health Hazard - Teratogen Massachusetts: GeAS# COMPONENT NAME 302-01-2 HYDRAZINE ZUSMARTK Massachusetts Right to Know List of Chemicals and Hazard Classifications 1993-04-24 HYDRAZINE Carcinogen, Extraordinarily hazardous California Proposition 65: CeAS# 1COMPONENT NAME 302-01-2 HYDRAZINE 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 11 of 12

MATEIA SAFT H, Chemiucals, Inc. ZUSCAP65 California Proposition 65. Safe drinking water and toxic enforcement act. No Significant Risk Levels 0.04 ug/day Hydrazine Carcinogen California Proposition 65. Safe drinking water and toxic enforcement act. No Significant Risk Levels 0.04 micrograms per day Hydrazine California Proposition 65. Safe drinking water and toxic enforcement act. Hydrazine Carcinogen WHMIS Hazard Classification: Ingredient Disclosure List (WHMIS) 2007-08-24 Threshold limits: 0.1 Weight percent 978 Hydrazine

16. OTHER INFORMATION MSDS REVISION STATUS:

SECTIONS REVISED: 2 Major References : Available upon request. THIS MATERIAL SAFETY DATA SHEET (MSDS) HAS BEEN PREPARED IN COMPLIANCE WITH THE FEDERAL OSHA HAZARD COMMUNICATION STANDARD, 29 CFR 1910.1200. THE INFORMATION IN THIS MSDS SHOULD BE PROVIDED TO ALL WHO WILL USE, HANDLE, STORE, TRANSPORT, OR OTHERWISE BE EXPOSED TO THIS PRODUCT. THIS INFORMATION HAS BEEN PREPARED FOR THE GUIDANCE OF PLANT ENGINEERING, OPERATIONS AND MANAGEMENT AND FOR PERSONS WORKING WITH OR HANDLING THIS PRODUCT. ARCH CHEMICALS BELIEVES THIS INFORMATION TO BE RELIABLE AND UP TO DATE AS OF THE DATE OF PUBLICATION BUT, MAKES NO WARRANTY THAT IT IS. ADDITIONALLY, IF THIS MSDS IS MORE THAN THREE YEARS OLD, YOU SHOULD CONTACT ARCH CHEMICALS MSDS CONTROL AT THE PHONE NUMBER ON THE FRONT PAGE TO MAKE CERTAIN THAT THIS DOCUMENT IS CURRENT.. 35% HYDRAZINE SOLUTION REVISION DATE: 12/15/2011 Page 12 of 12

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Auxiliary Boiler Chemical Additives

a. Manufacturers Product Identification Number: Morpholine

b. Product Use: pH Adjuster

c. Chemical Composition: See attached data sheets

d. Classification (non-persistent, persistent or bioaccumulative): Non-persistent

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Intermittent use, not exceeding 2 hours/day/unit

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not Available

i. Outfall: 004

SAFETY DATA SHEET A4NALC0 PRODUCT PRE-TECT PT4000 EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC

11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: PRE-TECT PT4000 APPLICATION: CORROSION INHIBITOR COMPANY IDENTIFICATION: Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S): (800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 3/3 FLAMMABILITY: 1 /1 INSTABILITY: 0/0 OTHER:

0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme *= Chronic Health Hazard

12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous. Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s) CAS NO  % (w/w) Morpholine 110-91-8 30.0- 60.0

13. 1 HAZARDS IDENTIFICATION I

                                             **EMERGENCY OVERVIEW**

DANGER Corrosive. May cause tissue damage. Harmful if absorbed through skin. Vapors may have a strong offensive odor which may cause sensory response including headache, nausea and vomiting. 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 oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) under fire conditions. PRIMARY ROUTES OF EXPOSURE: Eye, Skin, Inhalation HUMAN HEALTH HAZARDS - ACUTE: EYE CONTACT: Corrosive. Will cause eye burns and permanent tissue damage. Exposure to low vapor concentrations can result in foggy or blurred vision, objects appearing bluish and appearance of a halo around lights. These symptoms are temporary. Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198 * (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/10

SAFETY DATA SHEET 04NALCO PRODUCT PRE-TECT PT4000 EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC SKIN CONTACT: May cause severe irritation or tissue damage depending on the length of exposure and the type of first aid administered. Harmful if absorbed through skin. INGESTION: Not a likely route of exposure. Corrosive; causes chemical burns to the mouth, throat and stomach. INHALATION: Irritating, in high concentrations, to the eyes, nose, throat and lungs, Vapors may have a strong offensive odor which may cause sensory response including headache, nausea and vomiting. SYMPTOMS OF EXPOSURE: Acute : A review of available data does not identify any symptoms from exposure not previously mentioned. Chronic: A review of available data does not identify any symptoms from exposure not previously mentioned. AGGRAVATION OF EXISTING CONDITIONS: A review of available data does not identify any worsening of existing conditions.

14. 1 FIRST 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. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

15. 1 FIRE FIGHTING MEASURES FLASH POINT: > 200 'F / > 93.3 °C (TCC)

EXTINGUISHING MEDIA: Alcohol foam, Carbon dioxide, Water spray, Dry powder Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198, (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/10

SAFETY DATA SHEET

  )4NALCO                                            PRODUCT PRE-TECT PT4000 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC This product would not be expected to burn unless all the water is boiled away. The remaining organics may be ignitable. Keep containers cool by spraying with water. FIRE AND EXPLOSION HAZARD: May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) under fire conditions. SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.

16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete. Ensure clean-up is conducted by trained personnel only. Ventilate spill area if possible. Do not touch spilled material. Stop or reduce any leaks if it is safe to do so. Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection). Notify appropriate government, occupational health and safety and environmental authorities. METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material. Place residues in a suitable, covered, properly labeled container. Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal. Wash site of spillage thoroughly with water. Contact an approved waste hauler for disposal of contaminated recovered material. Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations). ENVIRONMENTAL PRECAUTIONS: Do not contaminate surface water.

17. 1 HANDLING AND STORAGE HANDLING:

Do not get in eyes, on skin, on clothing. Do not take internally. Do not breathe vapors/gases/dust. Use with adequate ventilation. Avoid generating aerosols and mists. Keep away from acids and oxidizing agents. Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available. STORAGE CONDITIONS: Store separately from acids. Store separately from oxidizers. Amine and sulphite products should not be stored within close proximity or resulting vapors may form visible airborne particles. Store the containers tightly closed. Store in suitable labeled containers.

18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS:

Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below. Substance(s) Category: ppm rag/m3 Non-Standard Unit Morpholine ACGIHfITWA 20 ACGIH/Skin* Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198* (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/10

SAFETY DATA SHEET A4NALCO EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC OSHA ZI/PEL 20 70 OSHA Z1/Skin*

• Can be absorbed through the skin.

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. Where concentrations in air may exceed the limits given in this section, the use of a half face filter mask or air supplied breathing apparatus is recommended. A suitable filter material depends on the amount and type of chemicals being handled. Consider the use of filter type: Ammonia / amine cartridge, with a Particulate pre-filter. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. HAND PROTECTION: Butyl gloves Most glove materials are of low chemical resistance. Replace gloves regularly. Neoprene 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. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Light yellow ODOR Amine SPECIFIC GRAVITY 1.001 DENSITY 8.3 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 11.5-12.0 VAPOR PRESSURE 8 mm Hg @ 68 °F / 20 'C Note: These physical properties are typical values for this product and are subject to change.

Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198. (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/10

SAFETY DATA SHEET R4NALCO PRODUCT PRE-TECT PT4000 EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC

10. STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions. HAZARDOUS POLYMERIZATION: Hazardous polymerization will not occur. CONDITIONS TO AVOID: Heat and sources of ignition MATERIALS TO AVOID: Contact with strong acids (e.g. sulfuric, phosphoric, nitric, hydrochloric, chromic, sulfonic) may generate heat, splattering or boiling and toxic vapors. Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors. Avoid contact with S02 or acidic bisulfite products, which may react to form visible airborne amine salt particles. Certain amines in contact with nitrous acid, organic or inorganic nitrites or atmospheres with high nitrous oxide concentrations may produce N-nitrosamines, many of which are cancer-causing agents to laboratory animals. HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions: Oxides of carbon, Oxides of nitrogen

11. 1TOXICOLOGICAL INFORMATION The following results are for the active components.

ACUTE ORAL TOXICITY: Species: Rat LD50: 1,050 mg/kg Test Descriptor: Morpholine ACUTE DERMAL TOXICITY: Species: Rabbit LD50: 500 mg/kg Test Descriptor: Morpholine ACUTE INHALATION TOXICITY: Species: Rat LD50: 8000 ppm (8 hrs) Test Descriptor: Morpholine CARCINOGENICITY: None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH). Nalco Company 1601 W. Diehl Road

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

SAFETY DATA SHEET AWNALCO PRODUCT PRE-TECT PT4000 EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC MUTAGENICITY: Mutagenicity tests on morpholine provided the following results: A bacterial mutagenicity (Ames) bioassay was negative; sister chromatid exchange transformation was positive; mouse lymphoma was weakly positive and rat hepatocyte/DNA repair was negative. 112. 1ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS: The following results are for the active components. ACUTE FISH RESULTS: I Species I Exposure ILC50 I Test Descriptor Bluegill Sunfish 96 hrs > 350 mg/I Morpholine ACUTE INVERTEBRATE RESULTS: ISpecies I Exposure ILC50 IEC50 I Test Descriptor Daphnia magna 24 hrs 100 - 119 mg/I Morpholine) If released into the environment, see CERCLA/SUPERFUND in Section 15.

13. 1 DISPOSAL CONSIDERATIONS If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.

As a non-hazardous waste, it is not subject to federal regulation. Consult state or local regulation for any additional handling, treatment or disposal requirements. For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility. 114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading) specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation. Typical Proper Shipping Names for this product are as follows. LAND TRANSPORT: Proper Shipping Name: AMINES, LIQUID, CORROSIVE, N.O.S. Technical Name(s): MORPHOLINE UN/ID No: UN 2735 Hazard Class - Primary: 8 Packing Group: III Flash Point: > 93.3 *C / > 200 'F Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198 * (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/10

P NALCO EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC AIR TRANSPORT (ICAO/IATA): Proper Shipping Name: AMINES, LIQUID, CORROSIVE, N.O.S. Technical Name(s): MORPHOLINE UN/ID No: UN 2735 Hazard Class - Primary: 8 Packing Group: III IATA Cargo Packing Instructions: 820 IATA Cargo Aircraft Limit: 60 L (Max net quantity per package) MARINE TRANSPORT (IMDG/IMO): Proper Shipping Name: AMINES, LIQUID, CORROSIVE, N.O.S. Technical Name(s) MORPHOLINE UN/ID No: UN 2735 Hazard Class - Primary: 8 Packing Group: III i 15. I REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance. The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment. Nalco accepts no liability for the use of this information. NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200: Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below. Morpholine: Corrosive, Flammable CERCLA/SUPERFUND, 40 CFR 117, 302: Notification of spills of this product is not required. SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) - SECTIONS 302, 311, 312, AND 313: SECTION 302 - EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance. SECTIONS 311 AND 312 - MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous. The product should be reported under the following indicated EPA hazard categories: X Immediate (Acute) Health Hazard X Delayed (Chronic) Health Hazard Fire Hazard Sudden Release of Pressure Hazard Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198 * (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/10

SAFETY DATA SHEET O4NALCO PRODUCT PRE-TECT PT4000 EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC 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) FOOD AND DRUG ADMINISTRATION (FDA) Federal Food, Drug and Cosmetic Act: When use situations necessitate compliance with FDA regulations, this product is acceptable under: 21 CFR 173.310 Boiler Water Additives The following limitations apply: Maximum dosage Limitation 25 PPM in the steam. This product can not be used where the steam produced will contact milk or milk products. FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.4 /formerly Sec. 311 : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed Components may be present at trace levels. CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances) : This product contains the following substances listed in the regulation. Additional components may be unintentionally present at trace levels. I Substance(s) Citations 0 Morpholine Sec. 111 CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product. MICHIGAN CRITICAL MATERIALS: Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels. STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance with State Right to Know Laws: Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198 - (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/10

SAFETY DATA SHEET P4NALCO PRODUCT PRE-TECT PT4000 EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC Morpholine 110-91-8 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 substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL).

16. OTHER INFORMATION This product material safety data sheet provides health and safety information. The product is to be used in applications consistent with our product literature. Individuals handling this product should be informed of the recommended safety precautions and should have access to this information. For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations. Please consult your local sales representative for any further information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight 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. Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198* (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/10

SAFETY DATA SHEET P4 NALCO EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC 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: 09/23/2009 Version Number: 1.5 Nalco Company 1601 W. Diehl Road

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

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Auxiliary Boiler Chemical Additives

a. Manufacturers Product Identification Number: Dimethylamine

b. Product Use: Corrosion control

c. Chemical Composition: See attached data sheets

d. Classification (non-persistent, persistent or bioaccumulative): Non-persistent

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Continuous low concentration feed

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not Available

i. Outfall: 004

SAFETY DATA SHEET

  )4NALCO                                            PRODUCT PRE-TECT 9002HP EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC

11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: PRE-TECT 9002HP APPLICATION: BOILER 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: 2/2 INSTABILITY: 0/0 OTHER:

0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme

• Chronic Health Hazard

12. 1 COMPOSITIONIINFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous. Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s) CAS NO  %(w/w) Dimethylamine 124-40-3 1.0- 5.0

13. 1HAZARDS IDENTIFICATION I

                                             **EMERGENCY OVERVIEW**

DANGER Corrosive. Combustible. May cause tissue damage. Vapors may have a strong offensive odor which may cause sensory response including headache, nausea and vomiting. Do not get in eyes, on skin, on clothing. Do not take internally. Avoid breathing vapor. Use with adequate ventilation. Keep container tightly closed. Keep away from heat. Keep away from sources of ignition - No smoking. 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 suitable protective clothing, gloves and eye/face protection. Combustible Liquid; may form combustible mixtures at or above the flash point. Empty product containers may contain product residue. Do not pressurize, cut, heat, weld, or expose containers to flame or other sources of ignition. May evolve ammonia under fire conditions. May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) under fire conditions. PRIMARY ROUTES OF EXPOSURE: Eye, Skin Nalco Company 1601 W. Diehl Road

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

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SAFETY DATA SHEET

  )4NALCO                                             PRODUCT PRE-TECT 9002HP EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC 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. INGESTION: Not a likely route of exposure. Corrosive; causes chemical burns to the mouth, throat and stomach. INHALATION: Irritating to the eyes, nose, throat and lungs. Vapors may have a strong offensive odor which may cause sensory response including headache, nausea and vomiting. AGGRAVATION OF EXISTING CONDITIONS: A review of available data does not identify any worsening of existing conditions. HUMAN HEALTH HAZARDS - CHRONIC: No adverse effects expected other than those mentioned above.

14. 1 FIRST AID MEASURES EYE CONTACT:

Immediately flush eye with water for at least 15 minutes while holding eyelids open. PROMPT ACTION IS ESSENTIAL IN CASE OF CONTACT. Get immediate medical attention. SKIN CONTACT: Immediately flush with plenty of water for at least 15 minutes. 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 immediate medical attention. NOTE TO PHYSICIAN: Probable mucosal damage may contraindicate the use of gastric lavage. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

5. 1FIRE FIGHTING MEASURES FLASH POINT: 127 'F / 52.8 °C Nalco Company 1601 W. Diehl Road

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

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SAFETY DATA SHEET P4NALCO PRODUCT PRE-TECT 9002HP EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC EXTINGUISHING MEDIA: Foam, Carbon dioxide, Dry powder, Other extinguishing agent suitable for Class B fires, For large fires, use water spray or fog, thoroughly drenching the burning material. Keep containers cool by spraying with water. FIRE AND EXPLOSION HAZARD: Combustible Liquid; may form combustible mixtures at or above the flash point. Empty product containers may contain product residue. Do not pressurize, cut, heat, weld, or expose containers to flame or other sources of ignition. May evolve ammonia under fire conditions. May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) under fire conditions. SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING: In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.

16. 1ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete. Ensure clean-up is conducted by trained personnel only. Ventilate spill area if possible. Do not touch spilled material. Remove sources of ignition. Stop or reduce any leaks if it is safe to do so. Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection). Notify appropriate government, occupational health and safety and environmental authorities. METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material. Place residues in a suitable, covered, properly labeled container. Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal. Wash site of spillage thoroughly with water. Contact an approved waste hauler for disposal of contaminated recovered material. Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations). ENVIRONMENTAL PRECAUTIONS: Prevent material from entering sewers or waterways.

17. 1HANDLING AND STORAGE HANDLING:

Do not get in eyes, on skin, on clothing. Do not take internally. Use with adequate ventilation. Do not breathe vapors/gases/dust. Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available. Ensure all containers are labeled. Do not use, store, spill or pour near heat, sparks or open flame. STORAGE CONDITIONS: Store in suitable labeled containers. Store the containers tightly closed. Store away from heat and sources of ignition. Have appropriate fire extinguishers available in and near the storage area. Connections must be grounded to avoid electrical charges. Store separately from oxidizers. Amine and sulphite products should not be stored within close proximity or resulting vapors may form visible airborne particles. Nalco Company 1601 W. Diehl Road

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

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SAFETY DATA SHEET

  )NALCO                                             PRODUCT PRE-TECT 9002HP EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC UNSUITABLE CONSTRUCTION MATERIAL: Copper, Aluminum, Zinc, Galvanized metals, Shipping and long term storage compatibility with construction materials can vary; we therefore recommend that compatibility is tested prior to use. [8. 1 EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS: Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below. Substance(s) Category: ppm mg/m3 Non-Standard Unit Dimethylamine ACGIH/TWA 5 ACGIH/STEL 15 OSHAZI/PEL 10 18 ENGINEERING MEASURES: General ventilation is recommended. Use local exhaust ventilation ifnecessary to control airborne mist and vapor. RESPIRATORY PROTECTION: If significant mists, vapors or aerosols are generated an approved respirator is recommended. Wear an organic vapor/mist respirator when spraying. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection. HAND PROTECTION: When handling this product, the use of chemical gauntlets is recommended. The choice of work glove depends on work conditions and what chemicals are handled. Please contact the PPE manufacturer for advice on what type of glove material may be suitable. Gloves should be replaced immediately ifsigns of degradation are observed. SKIN PROTECTION: Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots. Afull slicker suit is recommended ifgross exposure is possible. EYE PROTECTION: Wear a face shield with chemical splash goggles. HYGIENE RECOMMENDATIONS: Use good work and personal hygiene practices to avoid exposure. Eye wash station and safety shower are necessary. If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals. When handling this product never eat, drink or smoke.

9. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Colorless Nalco Company 1601 W. Diehl Road

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

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SAFETY DATA SHEET

   )4NALCO                                           PRODUCT PRE-TECT 9002HP EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC ODOR Ammoniacal, Fishy SPECIFIC GRAVITY 0.988 - 0.994 @ 77 °F / 25 °C DENSITY 8.23 - 8.28 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 11.5-12.0 VAPOR PRESSURE No data available. Note: These physical properties are typical values for this product and are subject to change.

10. 1STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions. HAZARDOUS POLYMERIZATION: Hazardous polymerization will not occur. CONDITIONS TO AVOID: Heat and sources of ignition including static discharges. MATERIALS TO AVOID: Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors. Acids HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions: ammonia, Oxides of carbon, Oxides of nitrogen I11. I TOXICOLOGICAL INFORMATION I No toxicity studies have been conducted on this product. SENSITIZATION: Repeated or prolonged contact may cause sensitization in some individuals. CARCINOGENICITY: None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).

12. 1ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS:

No toxicity studies have been conducted on this product. Nalco Company 1601 W. Diehl Road

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

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SAFETY DATA SHEET P4fNALCO PRODUCT PRE-TECT 9002HP m EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC ACUTE INVERTEBRATE RESULTS: LSpecies I Exposure Test Type Value Test Descriptor If released into the environment, see CERCLA/SUPERFUND in Section 15.

13. 1 DISPOSAL CONSIDERATIONS If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.

Hazardous Waste: D001 , 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. I 14. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading) specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation. Typical Proper Shipping Names for this product are as follows. The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product. LAND TRANSPORT: Proper Shipping Name: AMINES, FLAMMABLE, CORROSIVE, N.O.S. Technical Name(s): DIMETHYLAMINE UN/ID No: UN 2733 Hazard Class - Primary: 3 Hazard Class - Secondary: 8 Packing Group III Flash Point: 52.8 'C / 127 OF Reportable Quantity (per package) 50,000 lbs RQ Component: DIMETHYLAMINE AIR TRANSPORT (ICAO/IATA): The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product. Proper Shipping Name: AMINES, FLAMMABLE, CORROSIVE, N.O.S. Technical Name(s): DIMETHYLAMINE UN/ID No: UN 2733 Nalco Company 1601 W. Diehl Road

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

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SAFETY DATA SHEET

 )4NALCO                                             PRODUCT PRE-TECT 9002HP EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC Hazard Class - Primary: 3 Hazard Class - Secondary: 8 Packing Group : III Reportable Quantity (per package): 50,000 lbs RQ Component: DIMETHYLAMINE MARINE TRANSPORT (IMDG/IMO): Proper Shipping Name: AMINES, FLAMMABLE, CORROSIVE, N.O.S. Technical Name(s): DIMETHYLAMINE UN/ID No: UN 2733 Hazard Class - Primary. 3 Hazard Class - Secondary: 8 Packing Group : III 115. i REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance. The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment. Nalco accepts no liability for the use of this information. NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200: Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below. Dimethylamine: Corrosive, Flammable, HARMFUL CERCLAISUPERFUND, 40 CFR 302: This product contains the following Reportable Quantity (RQ) Substance. Also listed is the RQ for the product. RQ Substance RQ Dimethylamine 50,000 lbs SARAISUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) - SECTIONS 302, 311, 312, AND 313: SECTION 302 - EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance. SECTIONS 311 AND 312 - MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous. The product should be reported under the following indicated EPA hazard categories: X Immediate (Acute) Health Hazard Delayed (Chronic) Health Hazard X Fire Hazard Sudden Release of Pressure Hazard Nalco Company 1601 W. Diehl Road

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

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SAFETY DATA SHEET P4NALCO AW NALCOPRODUCT PRE-TECT 9002HP EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals. The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals. SECTION 313 - LIST OF TOXIC CHEMICALS (40 CFR 372): This product contains the following substance(s), (with CAS # and % range) which appear(s) on the List of Toxic Chemicals Hazardous Substance(s) CAS NO  % (w/w) Dimethylamine 124-40-3 1.0-5.0 TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710) FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR 116.4 / formerly Sec. 311 : This product contains the following substances listed in the regulation. Additional components may be unintentionally present at trace levels. Substance s) Citations 0 Dimethylamine Sec. 311 CLEAN AIR ACT, Sec. 112 (Hazardous Air Pollutants, as amended by 40 CFR 63), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances) : Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels. CALIFORNIA PROPOSITION 65: Substances listed under California Proposition 65 are not intentionally added or expected to be present in this product. MICHIGAN CRITICAL MATERIALS: Substances listed under this regulation are not intentionally added or expected to be present in this product. Listed components may be present at trace levels. STATE RIGHT TO KNOW LAWS: The following substances are disclosed for compliance with State Right to Know Laws: Dimethylamine 124-40-3 INTERNATIONAL CHEMICAL CONTROL LAWS: Nalco Company 1601 W. Diehl Road

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

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SAFETY DATA SHEET 04"NALCO PRODUCT PRE-TECT 9002HP EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC 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 Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight TM CD-ROM Version), Ariel Research Corp., Bethesda, MD. Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO. IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer. Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO. Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service. Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight TM 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 TM CD-ROM Version), Micromedex, Inc., Englewood, CO. Ariel InsightTM (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel InsightTM CD-ROM Version), Ariel Research Corp., Bethesda, MD. The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPSTM CD-ROM Version), Micromedex, Inc., Englewood, CO. Prepared By: Product Safety Department Date issued: 03/26/2012 Version Number: 1.6 Nalco Company 1601 W. Diehl Road

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

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Attachment F Once - Through Cooling Chemical Additives Luminant Generation Company LLC Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Technical Report

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Once-Through Cooling Chemical Additives

a. Manufacturers Product Identification Number: Sodium Hypochlorite

b. Product Use: Biocide (oxidizing)

c. Chemical Composition: NaOCI

d. Classification (non-persistent, persistent or bioaccumulative): Non-persistent

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Intermittent use; not exceeding 2 hours/daylunit

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not Available

i. Outfall: 001

MATERIAL SAFETY DATA SHEET

   )1NALCO EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC

11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: R-50650 Sodium Hypochlorite, 12.5%

COMPANY IDENTIFICATION: Nalco Company 1601 W. Diehl Road Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S): (800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 3/3 FLAMMABILITY: 0/0 INSTABILITY: 0/0 OTHER: 0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme

12. 1 COMPOSITION/INFORMATION ON INGREDIENTS Our hazard evaluation has identified the following chemical substance(s) as hazardous. Consult Section 15 for the nature of the hazard(s).

Hazardous Substance(s) CAS NO  % (w/w) Sodium Hypochlorite 7681-52-9 10.0- 30.0 Sodium Hydroxide 1310-73-2 0.1- 2.0

13. 1 HAZARDS IDENTIFICATION I

                                             **EMERGENCY OVERVIEW**

DANGER Corrosive. CORROSIVE. MAY CAUSE SEVERE SKIN IRRITATION OR CHEMICAL BURNS TO BROKEN SKIN. CAUSES EYE DAMAGE. Do not get in eyes, on skin, on clothing. Do not take internally. Use with adequate ventilation. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. Wear a face shield. Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots. Not flammable but can act as an oxidizing agent, enhancing the burning rate of other materials. May evolve chlorine under fire conditions. May evolve HCI under fire conditions. Hypochlorous acid PRIMARY ROUTES OF EXPOSURE : Eye, Skin HUMAN HEALTH HAZARDS - ACUTE: EYE CONTACT: Corrosive. Will cause eye burns and permanent tissue damage. Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198 (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 1/10

MATERIAL SAFETY DATA SHEET AWNALCO PRODUCT R-50650 Sodium Hypochlorite, 12.5% EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC SKIN CONTACT: May cause severe irritation or tissue damage depending on the length of exposure and the type of first aid administered. Repeated or prolonged contact may cause skin sensitization. INGESTION: Not a likely route of exposure. Corrosive; causes chemical burns to the mouth, throat and stomach. INHALATION: Not a likely route of exposure. Elevated temperatures or mechanical action may form vapors, mists or fumes which may be irritating to the eyes, nose, throat and lungs. HUMAN HEALTH HAZARDS - CHRONIC: No adverse effects expected other than those mentioned above.

4. FIRST AID MEASURES EYE CONTACT:

Get immediate medical attention. PROMPT ACTION IS ESSENTIAL IN CASE OF CONTACT. Immediately flush eye with water for at least 15 minutes while holding eyelids open. SKIN CONTACT: Get immediate medical attention. 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. Contaminated clothing, shoes, and leather goods must be discarded or cleaned before re-use. INGESTION: Get immediate medical attention. DO NOT INDUCE VOMITING. Ifconscious, washout mouth and give water to drink. INHALATION: Remove to fresh air, treat symptomatically. If symptoms develop, seek medical advice. NOTE TO PHYSICIAN: Probable mucosal damage may contraindicate the use of gastric lavage. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

5. FIRE FIGHTING MEASURES FLASH POINT: Not flammable EXTINGUISHING MEDIA:

Not expected to burn. Use extinguishing media appropriate for surrounding fire. FIRE AND EXPLOSION HAZARD: Not flammable but can act as an oxidizing agent, enhancing the burning rate of other materials. May evolve chlorine under fire conditions. May evolve HCI under fire conditions. Hypochlorous acid Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198 * (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 2/10

MATERIAL SAFETY DAT

  )4NALCO SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING:

In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.

16. 1 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Restrict access to area as appropriate until clean-up operations are complete. Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection). Stop or reduce any leaks if it is safe to do so. Ventilate spill area if possible. Ensure clean-up is conducted by trained personnel only. Do not touch spilled material. Have emergency equipment (for fires, spills, leaks, etc.) readily available. Notify appropriate government, occupational health and safety and environmental authorities. METHODS FOR CLEANING UP: SMALL SPILLS: Soak up spill with absorbent material. Place residues in a suitable, covered, properly labeled container. Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal. Clean contaminated surfaces with water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered material. Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations). ENVIRONMENTAL PRECAUTIONS: Do not contaminate surface water.

17. 1HANDLING AND STORAGE HANDLING:

Do not get in eyes, on skin, on clothing. Do not take internally. Use with adequate ventilation. Do not breathe vapors/gases/dust. Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available. Ensure all containers are labeled. Do not mix with acids. STORAGE CONDITIONS: Store in suitable labeled containers. Store the containers tightly closed. Store separately from acids. SUITABLE CONSTRUCTION MATERIAL : Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.

18. 1 EXPOSURE CONTROLS/PERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS:

Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below. ACGIH/TLV: Substance(s) Sodium Hydroxide CEILING: 2 mg/m3 OSHA/PEL: Substance(s) Sodium Hydroxide CEILING: 2 mg/m3 Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198 * (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 3/10

P4NALCO EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC ENGINEERING MEASURES: General ventilation is recommended. RESPIRATORY PROTECTION: Where concentrations in air may exceed the limits given in this section, the use of a half face filter mask or air supplied breathing apparatus is recommended. A suitable filter material depends on the amount and type of chemicals being handled. Consider the use of filter type: Acid gas cartridge, with a Particulate pre-filter. In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA should be used. If respiratory protection is required, institute a complete respiratory protection program including selection, fit testing, training, maintenance and inspection. HAND PROTECTION: When handling this product, the use of chemical gauntlets is recommended., The choice of work glove depends on work conditions and what chemicals are handled, but we have positive experience under light handling conditions using gloves made from, PVC, ., Gloves should be replaced immediately if signs of degradation are observed., Breakthrough time not determined as preparation, consult PPE manufacturers. SKIN PROTECTION: When handling this product, the use of overalls, a chemical resistant apron and rubber boots is recommended. A full slicker suit is recommended if gross exposure is possible. EYE PROTECTION: Wear a face shield with chemical splash goggles. HYGIENE RECOMMENDATIONS: Use good work and personal hygiene practices to avoid exposure. Keep an eye wash fountain available. Keep a safety shower available. If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse. Always wash thoroughly after handling chemicals. When handling this product never eat, drink or smoke.

19. 1 PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Light yellow Green ODOR Chlorine SPECIFIC GRAVITY 1.22 DENSITY 10.2 lb/gal SOLUBILITY IN WATER Complete pH 0 12.5 FREEZING POINT 8.0 'F / -13.3 0C VOC CONTENT 0.0 % Calculated Note: These physical properties are typical values for this product and are subject to change.

Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198 ° (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 4/10

MATERIAL SAFETY DATA SHEET P4NALCO PRODUCT R-50650 Sodium Hypochlorite, 12.5% EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC 110. I STABILITY AND REACTIVITY STABILITY: Stable under normal conditions. HAZARDOUS POLYMERIZATION: Hazardous polymerization will not occur. CONDITIONS TO AVOID: Avoid extremes of temperature. MATERIALS TO AVOID: Acids Contact with strong acids (e.g. sulfuric, phosphoric, nitric, hydrochloric, chromic, sulfonic) may generate heat, splattering or boiling and toxic vapors. Contact with organic materials (e.g. rags, sawdust, hydrocarbon oils or solvents) and avoid reducing agents (e.g. hydrazine, sulfites, sulfide, aluminum or magnesium dust) which can generate heat, fires, explosions and the release of toxic fumes. Metals HAZARDOUS DECOMPOSITION PRODUCTS: Under fire conditions: Chlorine gas, HCI, May evolve toxic fumes.

11. 1 TOXICOLOGICAL INFORMATION No toxicity studies have been conducted on this product.

SENSITIZATION: This product is not expected to be a sensitizer. CARCINOGENICITY: None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).

12. 1 ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS:

No toxicity studies have been conducted on this product. MOBILITY: The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program interface) Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input and output. The level III model does not require equilibrium between the defined media. The information provided is intended to give the user a general estimate of the environmental fate of this product under the defined conditions of the models. If released into the environment this material is expected to distribute to the air, water and soil/sediment in the approximate respective percentages; I Air I Water I Soil/Sediment Nalco Company 1601 W. Diehl Road

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

P4NALCO (800) 424-9300 (24 Hours) CHEMTREC

                  <5%                    30- 50%                  50 - 70%

The portion in water is expected to be soluble or dispersible. BIOACCUMULATION POTENTIAL This preparation or material is not expected to bioaccumulate. If released into the environment, see CERCLA/SUPERFUND in Section 15.

13. 1 DISPOSAL CONSIDERATIONS If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.

Hazardous Waste: D002 Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility. Consult local, state, and federal regulations for specific requirements. 114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading) specific to an order. Please note that the proper Shipping Name / Hazard Class may vary by packaging, properties, and mode of transportation. Typical Proper Shipping Names for this product are as follows. The presence of an RQ component (Reportable Quantity for U.S. EPA and DOT) in this product causes it to be regulated with an additional description of RQ for road, or as a class 9 for road and air, ONLY when the net weight in the package exceeds the calculated RQ for the product. LAND TRANSPORT: Proper Shipping Name: HYPOCHLORITE SOLUTION Technical Name(s): UN/ID No: UN 1791 Hazard Class - Primary: 8 Packing Group: III Flash Point: Not flammable DOT Reportable Quantity (per package): 900 Ibs DOT RQ Component: SODIUM HYPOCHLORITE AIR TRANSPORT (ICAO/IATA): Proper Shipping Name: HYPOCHLORITE SOLUTION Technical Name(s): Nalco Company 1601 W. Diehl Road

• Naperville, Illinois 60563-1198 * (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 6/10

MATERIAL SAFETY DATA SHEET A NALCO PRODUCT R-50650 Sodium Hypochlorite, 12.5% EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC UN/ID No: UN 1791 Hazard Class - Primary: 8 Packing Group: III 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 Hazard Class - Primary: 8 Packing Group: III 115. I REGULATORY INFORMATION I This section contains additional information that may have relevance to regulatory compliance. The information in this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an individualized compliance or hazard assessment. Nalco accepts no liability for the use of this information. NATIONAL REGULATIONS, USA: OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200: Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below. Sodium Hypochlorite: Corrosive, Oxidizer Sodium Hydroxide: Corrosive CERCLA/SUPERFUND, 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 900 lbs SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) - SECTIONS 302, 311, 312, AND 313: SECTION 302 - EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355): This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance. SECTIONS 311 AND 312 - MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370): Our hazard evaluation has found this product to be hazardous. The product should be reported under the following indicated EPA hazard categories: X Immediate (Acute) Health Hazard Delayed (Chronic) Health Hazard Nalco Company 1601 W. Diehl Road - Naperville, Illinois 60563-1198 * (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 7/10

MATERIAL SAFETY DATA SHEET P NALCO PRODUCT R-50650 Sodium Hypochlorite, 12.5% EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC Fire Hazard Sudden Release of Pressure Hazard Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals. The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals. SECTION 313 - LIST OF TOXIC CHEMICALS (40 CFR 372): This product does not contain substances on the List of Toxic Chemicals. TOXIC SUBSTANCES CONTROL ACT (TSCA): The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710) FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR 116.4 /formerly Sec. 311 : This product contains the following substances listed in the regulation: Substance(s) Citations

• Sodium Hypochlorite Sec. 311
• Sodium Hydroxide CLEAN AIR ACT, 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: The following substances are disclosed for compliance with State Right to Know Laws: Sodium Hypochlorite 7681-52-9 Sodium Hydroxide 1310-73-2 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 Nalco Company 1601 W. Diehl Road - Naperville, Illinois 60563-1198 * (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 8/10

PN )4NALCOPRDCL OMATERIAL SAFETY DATA SHEET R-50650 Sodium Hypochlorite, 12.5% EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA): The substance(s) in this preparation are included in or exempted from the Domestic Substance List (DSL). AUSTRALIA All substances in this product comply with the National Industrial Chemicals Notification &Assessment Scheme (NICNAS). CHINA All substances in this product comply with the Chemical Control Law and are listed on the Inventory of Existing Chemical Substances China (IECSC). EUROPE The substances in this preparation have been reviewed for compliance with the EINECS or ELINCS inventories. JAPAN All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical Substances and are listed on the Ministry of International Trade & industry List (MITI). KOREA All substances in this product comply with the Toxic Chemical Control Law (TCCL) and are listed on the Existing Chemicals List (ECL) PHILIPPINES All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippine Inventory of Chemicals & Chemical Substances (PICCS).

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

• Naperville, Illinois 60563-1198 * (630)305-1000 For additional copies of an MSDS visit www.nalco.com and request access 9/10

MATERIAL SAFETY DATA SHEET

 )PNALCO                                            PRODUCT R-50650 Sodium Hypochlorite, 12.5%

EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service. Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight# CD-ROM Version), Ariel Research Corp., Bethesda, MD. Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS# CD-ROM Version), Micromedex, Inc., Englewood, CO. Ariel Insight# (An integrated guide to industrial chemicals covered under major regulatory and advisory programs), North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight# CD-ROM Version), Ariel Research Corp., Bethesda, MD. The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS# CD-ROM Version), Micromedex, Inc., Englewood, CO. Prepared By: Product Safety Department Date issued: 04/30/2008 Version Number: 1.0 Nalco Company 1601 W. Diehl Road

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

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Once-Through Cooling Chemical Additives

a. Manufacturers Product Identification Number: Sodium Bromide

b. Product Use: Biocide enhancement

c. Chemical Composition: See attached data sheets

d. Classification (non-persistent, persistent or bioaccumulative): Non-persistent

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Intermittent use; not exceeding 2 hours/day/unit

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not Available

i. Outfall: 001

BUCKMAN LABORATORIES, INC. Material Safety Data Sheet Buckman BULAB 6040 Revision date: 12/4/2009 Buckman Laboratories, Inc. 24 Hour Emergencv Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626 SECTION 1 OSHA HAZARD CLASSIFICATIONS CAUTION: Avoid contact with skin and clothing. Wash with soap and water after handling. Remove and wash contaminated clothing before reuse. SECTION 2 HAZARDOUS COMPONENTS Chemical Name CAS Number  % by Weight .V TL Sodium Bromide 7647-15-6 40 Not available. While some substances are claimed as trade secret in accordancewith the provision of OSIA 29 CFR 1910.1200(i), all known hazards are clearly communicated within this document SECTION 3 FIRSTAID INFORMATION Eve If in eyes: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove Exposure: contact lenses, if present, after 5minutes, then continue rinsing eye. Call a poison control center or doctor for treatment advice. Skin If on skin or clothing: Take off contaminated clothing. Rinse skin immediately with plenty of Exposure: water for 15-20 minutes. Call a poison control center or doctor for treatment advise. Inhalation: If inhaled: Move person to fresh air. If person is not breathing, call 911 or an ambulance, then give artificial respiration, preferably mouth-to-mouth, if possible. Call poison control center or doctor for treatment advice. Ingestion: If swallowed: Call poison control center or doctor immediately for treatment advice. Have person sip a glass of water if able to swallow. Do not induce vomiting unless told to do so by the poison control center or doctor. Do not give anything by mouth to an unconscious person. USA BULAB 6040

Last Revision.. 121412009 BULAB 6040 Page 2 SECTION 4 PRIMARY ROUTES OFEXPOSURE

1. Effects from Acute Exposure:

Eve May cause eye irritation with reddness and swelling. Avoid contact with eyes. Exposure: Skin May cause skin irritation with itching, reddness or rash. Avoid contact with skin. Exposure: Inhalation: May be irritating to nose and throat. Avoid breathing vapors Ingestion: May be harmful if swallowed.

2. Effects from Chronic Exposure:

Prolonged and excessive inhalation or ingestion may produce rashes, central nervous system depression and emaciation and, in severe cases, psychoses and metal deterioration. SECTION 5 ToxicologicalInformation Acute Effects: Acute Oral (LD50) = >5000 mg/kg Rat Acute Dermal (LD50) = >20000 mg/kg Rabbit Irritant/ SensitizationEffects: May cause eye irritation with reddness and swelling. Avoid contact with eyes. May cause skin irritation with itching, reddness or rash. Avoid contact with skin. May be irritating to nose and throat. Avoid breathing vapors Target OrgansEffects: May cause damage to the following organs: upper respiratory tract, skin, eyes. Other Health Effects: May cause eye irritation. Based on the toxicological information available, this product is not expected to be irritating to the skin. SECTION 6 Environmental ToxicologicalInformation LC50 = >I000 mg/I 48 hours Daphnia magna LC50 = >1000 mg/I 96 hours Bluegill sunfish LC50 = >1000 mg/I 96 hours Rainbow trout SECTION 7 Physicaland ChemicalProperties Appearance.............................. Light Colorless. liquid Odor........................................... O dorless. (Slight.) Density ...................................... 1.43 Flash Point............................... Non-Flammable Melting/FreezingPoint .... -32.2oC (-26OF) Boiling Point........................ 103 to 104°C (217.4 to 219.21F) Solubility .......................... ... Completely Miscible USA BULAB 6040

Last Revision... 12/412009 BULAB 6040 Page 3 pH (Neat) .................................. 6.5 to 7.5 [Neutral.] pH (100 ppm in water) ........... Not available. Vapor Pressure....................... Not Established o/w PartitionCoefficient ......... Not available. Oxidizing/Reducing Properties. Not available. Viscosity ................................... Not available. A.dditional pH htformation ...... Not available. NOTE: The physical datapresented above are tpical values and should not be construed as specifications. SECTION 8 [1 Fire and Explosion Information Flammable Limits .................. Not available. Extinguishing Media ............... Appropriate to surrounding fire. Special Firefighting Firefighters should wear full protective clothing and self contained breathing Procedures............... apparatus (SCBA). Thoroughly decontaminate fire fighting equipment including all fire fighting wearing apparel after the incident. SECTION 9 ReactivityI ormnation Stabilit. ...................................... Stable under normal conditions of use and storage. Avoid extremely high heat. Incompatibility ......................... Strong acids, strong oxidants. Hazardous Decomposition If st Products.................................... rongly overheated, may release hydrogen bromide and/or bromine. SECTION 10 HandlingPrecautions ENGINEERING CONTROLS: General room ventilation plus local exhaust should be used to minimize exposure to vapors. PERSONAL PROTECTIVE EQUIPMENT: EYES AND FACE: Wear chemical safety goggles when handling this product. SKIN: Wear rubber gloves when handling this product. Avoid contact with skin. RESPIRATORY: A respiratory protection programthatmeets OSHA 1910.134 and ANSI Z88.2 requirementsmust be followed whenever workplace conditions warrant a respirator's use. WORK HYGIENIC PRACTICES: Wash thoroughly after handling. Remove and wash contaminated clothing before reuse. OTHER USE PRECAUTIONS: Facilities storing or utilizing thismaterial should be equipped with an eyewash and safety shower. HANDLING AND STORAGE GENERAL PROCEDURES: Avoid contact with eyes, skin or clothing. Avoid breathing vapors. HANDLING: Use safe chemical handling procedures for the hazards presented by this material. STORAGE: Keep this product dry in tightly closed original container when not in use. Store in a cool, dry, well ventilated area. Product should be stored at 0 F or above. USA BULAB 6040

Last Revision... 12/4/2009 BULAB 6040 Page 4 SECTION II Satisfactory Materialsof Construction 304 stainless steel 316 stainless steel Aluminum 5052 H34 ABS (Plastic) Teflon Polypropylene Polyethylene - crosslink Polyethylene - high density Polyethylene - low density PVC - flexible PVC - rigid Tygon EPDM rubber Neoprene Buna-N rubber Silicone rubber Viton Butyl rubber 6/6 Nylon Morton test liner (108 T 44LV) NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user. ISECTION 12 Sill, Leak, and Dis osal Procedures SPILL AND LEAK RESPONSE GUIDELINES: STEP TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED: Utilizing approporiate clothing and safety equipment, contain spill material. Cover the liquid with an inert absorbent. Using clean, dedicated equipment, sweep and scoop all spilled material, contaminated soil, and other contaminated material and place into clean dry plastic containers for disposal. Dispose of according to local, state and federal regulations. 15SECTION 13 Transportationand Shipping Information DOT Shipping Information: Not Regulated. IMO/IMDG Shipping Information: Not Regulated. IA TA Shipping Information: Not Regulated. DOT "RQ": NONE USA4 BULAB 6040

Lasl Revision... 12/4/2009 BULAB 6040 Page 5 Unless otherwise stated,the shipping informationprovided above applies only to non-bulk containers of this product Propershipping name andgeneral shippinginformation may vary depending on packaging and mode of shipment. All products shippedfrom Buckman locations have been properlypackaged and labeled according to appropriatehazardousmaterials shippingregulations. If any alterationof packaging,product, or mode of transportationis further intended,different shipping information,including but not limited to propershipping name, RQ designation, and labeling maq apply. Forfurther informationpertainingto the shippingrequirementsfor this product, contact Buckman's TransportationDepartmentor DOT Coordinator. SECTION 14 Regulatory Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SARA (SuperfundAmendments and ReauthorizationAct) SARA 302 Extremely Hazardous Substances List... No components of this product are listed. SARK4 312 Hazard Category... Immediate (Acute) Health Hazard SARA 313 Toxic Chemicals List... No components of this product are present above the de minimus levels. CERCLA (onwrehensive EnvironmentalResponse, Compensation and LiabilityAct) No components of this product are present above the de minimus levels. RCRA (Resource Conversationand Recovery Act) Listed Hazardous Waste No components of this product are listed. CWA (Clean Water Act) Listed Substances No components of this product are listed. FDA (Food and Dru' Administration) This product is allowed under the following FDA (21 CFR) sections :178.1010(b)(1) & (b)(2), 176.300: Not to exceed 22 ppm bromide ion in the process water, 173.315. TSCA (Toxic Substances ControlAct) Applicability All components are listed on the TSCA Inventory. Registered pesticides are exempt from the requirements of TSCA. FIFRA (FederalInsecticide, Fungicide,andRodenticide Act) This product is a registered pesticide. EPA Reg. No. 1448-345 HMIS/NPCA Rating ... Health I Flammability 0 Reactivity 0 NFPA Ratings ............. Health I Flammability 0 Reactivity 0 State Regulations Various State Right To Know Acts... Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. BULAB 6040 USA BULAB 6040

Lasi Revision... 1214/2009 BULAB 6040 Page 6 Last Revision... /2/4/2009 BULAB 6040 Page 6 The information on this Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which is not described in the Data Sheet is the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hazard Communication regulations. While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all known OSHA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to its chemical description and is reasonably fit for the purpose referred to in the directions for use when used in accordance with the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of any kind, express or implied, concerning the product, including NO IMPLIED WARRANTY OF" MERCHANTABILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be implied by law and no agent of seller is authorized to alter this warranty in any way except in writing with a specific reference to this warranty. The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered in any court having jurisdiction thereof.

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Once-Through Cooling Chemical Additives

a. Manufacturers Product Identification Number: Bulab 7016 (HEDP)/

Bulab 7034 (Polyacrylic Acid)/ Bulab 9374 /Bulab 9051 (Phosphoric Acid) Bulab 7005 (Acrylamide-Acrylic Acid)

b. Product Use: Scale inhibitor and dispersant

c. Chemical Composition: See attached data sheets

d. Classification (non-persistent, persistent or bioaccumulative): Not Available

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Continuous low concentration feed

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not Available

i. Outfall: 001

BUCKMAN LABORATORIES, INC. Material Safety Data Sheet Buckman BULAB 7016 Revision date: 11/8/2012 Buokman Laboratories, Inc. 24 Hour Emer~ency Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626 IOS*HA 18:F-C:1--N HAZA RD CLASSIFrCA TIONS Corrosive to eyes and skin. ISECTiON, 2I2ZA &OUS COMPONEWS

     .ASe m.NmbWe                                                                                   M                z" Organic phospho*ate                                                                      60         Not avaiable While some substa*es are claimed as trade secretin accordancewith die provlsion of OSIA 39 CFR 1910,1200(), all known harardsare dearly communicatedwithin Oils documeut EHold                  eyelids open and flush with a steady, gentle stream of water for at least 15 minutes. Seek ROOM,*immediate medical attention, preferably with an ophthalnologlst. If the physician IUnot immediately available, eye Irrigation should be continued for an additional 15 minutes. If It Is necessary to transport the patient to a physician and the eye needs to be bandaged, use a dry sterile cloth pad and cover both eyes.
~tbIn              case of contact, Immediately wash with plenty of soap and water for at least 5 minutes. Seek
         ~      medical attention if irritation developes or persists. Remove contaminated clothing and shoe.

Clean contaminated clothing and shoes before re-use. lmn#aa.on, Remove victim from immediate source of exposure and assure that the victim Is breathing. f breathingis difficult, administer oxygen, if available. If victim is not breathing, administer CPR (cawdio-plmonary resuscitation). Seek medical attention. Ingestion, NEVER attempt to induce vomiting. Do not give the affected person anything to drink, even if s/he is fully conscious. Transport to hospital immediately. Notes to Physician: All treatmenov should be based on observedsigns and symptoms of dkirw in the patient Considerationshould begiven to the posslbillty that overeoposureto materialsotherthan thks produdt itmy have occurred. Treatsymptomatically. No specific antidote available. BULAB 1016 USA USA BUtAS 7016

Lost RevAgioq... 1118/2012 BULAB 7010 Page 2 SECTIKON 4 PIMARYROUTFS OFEXPOiWR

1. E~ftect*from Acute Rrnosure:

Corrosie; causes eye burns and permanent tissue damage. LCorrosive; causes permanent skin damage. InaItatalou Mist may be severely irritating to nose, throat and lungs depending on concentration and duration of exposure. hMUM Low acute oral toxicity. May cause nausea, vomiting, irritation. Corrosive to mouth, esophagus and stomach.

2. Effects ftom Chronie Rnosure:

The effects from chronic exposure to this product have not been fully evaluated. SECTION 5 ToxIcologlca Information Acute Oral (LD50) = 2400 mg/kg Rat Acute Dermal (LD90) = 7940 mg/kg Rabbit Corrosive; causes eye burns and permanent tissue damage. Corrosive; causes permanent skin damage. Mist may be severely Irritating to nose, throat and lungs depending on concentration and duration of exposure. May cause damage to the following organs: blood, gastrointestinal tract, upper respiratory tract, skin, eyes, bones. 0Other Ifago AffhMcta None known. SCTION6ironmenal Toxo kal Iformadon LC*5O = 527 mg/I 48 hours Daphniamagna LC50 = 368 mg/ 96 hours Rainbow trout LCSO = 168 mg/ 96 hours Ceriodaphaiadubia LCSO = 154 mg/ 96 hours Fatheadminnow LC50 = 3 mg/1 96 hours Selenatmnam capricornutum Algal growth inhibitionis due to ability of this product to complex materialsnot to toxicity perse SECTION 7 pysica p and Chemical Properties, Appwarance .................... Clear, colorless to pale yellow liquid odor ........... ... Faint OeusI,- ..... ..........- 1.45 to 1.49 g/er' (25OC / 770 F) Mlash Point............ Closed cup: >IO0C (2120f). (Tagliabue.) Mdakng/lreeangPoint .... -31.70C (-25.1OF) USA SULAB 7016

LastRevL~lon... 111/&2012 BULAB 7016 Page 3 Boiling Pola .................... ..._ 10 pC (22101F) Solubihty ............................ Miscible in water. Pht (Neat) ............................... <2 (Cone. (% w/w): 1) [Acidic.] PH (1o0 ppm In Water) ........... Not available. V4gorPrassur. ................ 17 mm of rHg ( @ 20 0C) olw ParttionCoefficient ........ Not available. Oxmdi&ng/ReduclngProperties. Not available. Viscosity ................. .. Dynamic: 64 cP AdditionalpH Information .... Not available. NOT'E: The physical datapresentedabove are typical values andshould not be construedas specificatlons. IFSECTION 8 Fire and Expelosion jqfomation Flamaldesa ............- Not available. Exdnguishbg Media ............... Water fog, carbon dioxide, foam, dry chemical, S*weCaf4r!qf#g/hh Firefighters should wear NIOSH/MSHA approved positive pressure breathing Procedures........................... apparatus with full face-piece and full acid-resistant protective clothing. Keep unnecessary people away, Isolate hazard area and deny entry. Stay upwind; keep out of low areas. JSECTION9 Re cii vly Infor2 toný Stbiity ........... -..... .. ...Stable under normal conditions of use and storage, Incoinpadbiiy,... .................... Strong oxidi*zers, bases, attacks many metals. Keep away from sodium hypochiorite a deomu

           .          .. osi.ion...Oxides of phosphorous and carbon; acids of phosphorous, phosphine, oxides of P~aud
          ......                    ~.....

carbon, oxides of nitrogen SECTION 10 HtadlingPrecautions Do not get on skin or in eyes. Avoid breathing vapors and mists. Where engineering controls are indicated by use conditions or a potential for excessive exposure exists, the following traditional exposure control techniques may be used to effectively minimize employee exposures. Select NIOSIHMSHA approved equipment based on actual or potential airborne concentrations and in accordance with the appropriate regulatory standards and/or industrial recommendations. Eye and face protection requiremenfs will vary dependent upon work environment conditions and material handling practices. AppropriateANSI Z87 approved equipment should be selected for the particular use intended for this material. Eye contact should be prevented through use of chemical safety glasses with side shields or splash proof goggles. An emergency eye wash must be readily accessible to the work area Face contact should be prevented through use of a face shield. Skin contact should be prevented through use of suitable protective clothing, gloves, and footwear, selected with regard for use conditions and exposure potential. Consideration must be given both to durability as well as permeation resistance. Safety showers and eyewash stations are necessary in area of use. Personal hygiene is an hiportant work, practice exposure control measure and the following general measures should be taken when working with or handling this material: 1) Do not store, use, and/or consume foods, beverages, tobacco products, or cosmetics In areas where this material is stored. 2) Wash hands and face carefully before eating, drinking, using tobacco, applying cosmetics, or using the toilet. 3) Wash exposed skin promptly to remove accidental splashes or contact with this material. U311 BULAB 7016

Lost Revtton... 11/8/2012 BULAB 7016 Page 4 Polypropylene Teflon. PVC - rigid Buna-N rubber Viton PVC - flexible Silicone rubber Tygon tubing R.3603 Van leer epoxy liner 136 Polyethylene - high density Polyethylene - low density NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user. SECTION 12 S&i9, Lea&andDisposalProcedures SPILL AND LEAK RESPONSE GUIDELINES: Evacuation Procedures and Safety: Ventilate closed spaces before entering. Personnel handling this material should be thlusughly trainm to handle spills and releases. Wear appropriate protective gear for the situation. See Handling Precation information In Section 10. Evacuate and isolate spill area. Containmeat of Spll: Dilm or retain dilution water or water from irefighting for later disposal. Collect and contain contaminated absorbent and dike material for disposal. Cleanup and Disposal of Spill: Neutralize spill area with soda ash, sodium bicarbonate or lime. Absorb neutralized spill with an inert absorbent. Shovel up into an appropriate closed container. DO NOT RETURN MATERIAL TO ITS ORIGINAL CONTAINER. Decontaminate tools and equipment following eceanup. Clean up residual material by washing area with water. E9nvironmental and Regulatory Reporting: Do not flush to drain. Runoff from fire control or dilution water may cause pollution. Prevent material from entering public sewer system or any waterways. Spille may be reportable to the National Response Center (800424-8802) and to state andlor local agencies. Waste Disposal Method: Chemical additionus, processing or otherwise aftering this material may make the waste management information presented In this MSDS ineomplete, inaecurate, or otherwise inappropriate. Please be advised that state and local requremnents for waste disposal may be more restrictive or otherwise different from federal laws and regulations. Consult state and local regulations regarding the proper disposal of this material. 9PA Hazardms Waste - YES SECTION 13 Trans ortationandfSb N In rmadion DOT Shipptg rnfoirWwlma UN3265, CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S., (Organic phosphonate), Class 8, P.G. MI, (ERGNo. 153) IMO/IMDG Shipping nfeormaiton: UN3265, CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Organic phosphonate), Class 8, P.G. W, (EMS No. F-A, S-B, ERG Guide 153, HazMat Code 4931255) S .. -- l i . i i ASi7,i01i* BUi US-4 SULAS 70"16

Last Revision.. 11/812012 BULAB 7016 Page 6 The information on thil Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the reconimended conditions of use. Any use of thig product or mskhod of application which onot described In tie Data Sheet ls the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Rvaard Communication regulations. While snome components are claimed Trade Secret under OSHA Hazard Conmunication regulations, all known OSHA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckmhan Laboratories, Inc. warrants that thli product conforms to its chemical description and is reasonably fit for the purpose referred to In the diretons for use when used in accordance with the directions under normal conditions. Buyer assnmes the risk of any use contrary to such directions. Seller msaker no other warranty or representation of any Idnd, express or implied, concerning the product, including NO IMPLIBD WARRANTY OF MERCHANTADILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PUROSR. No such warranties shall be implied by law and no agent of seller isauthorized to alter this warranty in any way except in writing with a specific reference to this warranty. The exclusive remedy against seller shall be In a claim for damages not to exceed the purchase price of the product, without regard to whether each a claim Ibbased upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in actordance with the commercial Arbitration rules of tle American Arbitration Association, and Judgment upon, the rendered by the Arbittator(s) may be entered in any court havingJurisdiction thereof.

'BUCKMAN LABORATORIES, INC. Material Safety Data Sheet Buckman BULAB 7034 Revision date: 6/10/2013 Buckman Laboratories, Inc. 24 Hour Emergency Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626 FSECTION 1 OSHA HAZARD CLASSIFICATIONS Inhalation of vapor or mist can cause headache, nausea, and irritation of the nose, throat, and lungs. May cause eye and skin irritation. Chemical Name CAS Number  % by Weiht TLV While some substances are claimed as trade secret in accordance with the provision of OSHA 29 CFR 1910.1200(i), all known hazards are clearly communicated within this document. Eve Rinse with plenty of water. If eye irritation persists, consult a specialist. Exposure: SWash with water and soap as a precaution. In case of persistent skin irritation, consult a Exposure: physician. Inhalation: Move to fresh air. Lnwestion: Drink 1 or 2 glasses of water. Consult a physician if necessary. Never give anything by mouth to an unconscious person. SECTION 4 PRIMARY ROUTES OF EXPOSURE

1. Effects from Acute Exposure:

Eye Slightly irritating to the eyes. Exposure; Skin Prolonged or repeated contact may cause slight skin irritation. Exposure: Inhalation: Inhalation of vapor or mist can cause the following: irritation of nose, throat, and lungs; headache; nausea Ing-estion: Ingestion is not expected to be a primary route of exposure. USA BULAB 7034

Last Revision... 611012013 BULAB 7034 Page 2

2. Effects from ChronicExposure:

The effects from chronic exposure to this product have not been fully evaluated. I. 1 SECTION 5 ToxicologicalInformation I! Acute Effects: Acute Oral (LD50) = >5000 mg/kg Rat Acute Dermal (LD50) >5000 mg/kg Rabbit Irritant/ SensitizationEffects: Slightly irritating to the eyes. Prolonged or repeated contact may cause slight skin irritation. Inhalation of vapor or mist can cause the following: irritation of nose, throat, and lungs; headache; nausea Target OrgansEffects: May cause damage to the following organs: upper respiratory tract, skin, eyes. Other Health Effects: None known. SECTION 6Environmental Toxicological Information ] LC50= >1000 mg/1 48 hours Daphnia magna LC50 = >1000 mg/i 96 hours Bluegill sunfish LC50 = >1000 mg/l 96 hours Rainbow trout LC50 = 58 mg/l 72 hours Algae. LC50 = >1200 mg/1 48 hours Ceriodaphniadubia LC50 = >1200 mg/I 96 hours Fathead minnow SECTION 7 Physical and ChemicalProperties _ Appearance ........... ........... Transparent, colorless, liquid Odor........................ Slight. Density ...................................... 1.2 g/cmn Flash Point ............................... Closed cup: >1001C (212 0F). (Pensky-Martens.) Melting/Freezing Point .... 00C (32-F) Boiling Point............................ 100IC (2121F) Solubility ................................... Soluble in cold water. Soluble in hot water. pH (Neat) ....................... 3.7 to 5 [Acidic.) p11 (100 ppm in water) ........... Not available. Vapor Pressure........... 17 mm of Hg (* 201C ) o/w PartitionCoejflcient ......... Not available. Oxidizing/Reducing Properties. Not available. Viscosity .............. . .......... Dynamic: 100 to 600 eP AddltionalpH Information...... Not available. NOTE: The physical datapresentedabove are typical values andshould not be construedas specifications. USA BULAB 7034

Last Revision... 6/10/2013 BULAB 7034 Page 3 SECTION 8 Fireand Explosion Information Flammable Limits .................. Not available. l3tinguishingMedia ............... Use extinguishing media suitable for surrounding materials. Special Firefighting Fire-fighters should wear positive pressure self-contained breathing apparatus Procedures..............(SCBA) and full turnout gear. Material can splatter above 1000C/212°F. Dried product can burn. SECTION 9 Reactivity Inormation Stability ...................................... Stable. However, avoid tenlperatures above 230C/446F, the onset of polymer decomposition. Thermal decomposition is dependent on time and temperature. Incompatibility .......................... None known. HazardousDecomposition Products.................................... Thermal decomposition may yield acrylic monomers. SECTION 10 HandlingPrecautions Eye protection: safety glasses with side-shields Eye protection worn must be compatible with respiratory protection system employed. Hand protection: The glove(s) listed may provide protection against permeation. (Gloves of other chemically resistant materials may not provide adequate protection): Neoprene gloves Respiratory protection: A respiratory protection program meeting OSHA 1910.134 and ANSI Z88.2 requirements or equivalent must be followed whenever workplace conditions warrant a respirator's use. None required under normal operating conditions. Where vapors and/or mists may occur, wear a properly fitted NIOSH approved (or equivalerlt) half-mask, air-purifying respirator. Air-purifying respirators should be equipped with NIOSH approved (or equivalent) organic vapor cartridges and N95 filters. If oil mist is present, use R95 or P95 filters. Protective measures: Facilities storing or utilizing this material should be equipped with an eyewash facility. Engineering measures: Use local exhaust ventilation with a minimum capture velocity of 100 ft/min. (0.5 m/sec.) at the point of dust or mist evolution. Refer to the current edition of "Industrial Ventilation: A Manual of Recommended Practice" published by the American Conference of Governmental Industrial Hygienists for information on the design, installation, use, and maintenance of exhaust systems. Handling: Monomer vapors can be evolved when material is heated during processing operations. Further information on storage conditions: Keep from freezing -product stability may be affected. Stir well before use. Storage temperature: 1 -49 IC (34 -120 'F). SECTION 11 Satlyfactory Materials of Construction ABS (Plastic) Buna-N Rubber (Nitrile) C-FlexTubing Clear C-FlexTubing White Dow Silastic@ Tubing EPDM rubber EPT Rubber Fiberglass-Reinforced Plastic (FRP) Hastelloy C-276 Hypalou (CSPE) USA BULAB 7034

Last Revision... 611012013 BULAB 7034 Page 4 Kynar Neoprene Rubber Norprene Tubing 6/6 Nylon Perfluoroalkoxy (PFA) Pharmed Tubing Polycarbonate Polyethylene-Crosslinked (XLPE) Polyethylene - high density Polyethylene terephtalate (PET) Polyisoprene Latex Rubber (PIB) Polypropylene Polystyrene Polyurethane (PUR) CPVC PVC - flexible PVC - rigid REHAU Tubing (LDPE) Silicone rubber Steel - 304 L Stainless 316L Stainless Steel Teflon Tenite Plastic TygonR3400 TygonR4040/F4040 Viton NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user. SECTION 12 Spill, Leak, and DisposalProcedures SPILL AND LEAK RESPONSE GUIDELINES: Personal precautions Use personal protective equipment. Keep people away from and upwind of spill/leak. Material can create slippery conditions. Environmental precautions CAUTION: Keep spills and cleaning runoff out of municipal sewers and open bodies of water. Methods for cleaning up Contain spills immediately with inert materials (e.g., sand, earth). Transfer liquids and solid diking material to separate suitable containers for recovery or disposal. Environmental precautions: CAUTION: Keep spills and cleaning runoff out of municipal sewers and open bodies of water. Disposal Waste Classification: When a decision is made to discard this material as supplied, it does not meet RCRA's characteristic definition of ignitability, corrosivity, or reactivity, and is not listed in 40 CFR 261.33. The toxicity characteristic (TC), however, has not been evaluated by tie Toxicity Characteristic Leaching Procedure (TCLP). For disposal, incinerate or landfill at a permitted facility in accordance with local, state, and federal regulations. BULAB 7034 USA USA BULAB 7034

Last Revision... 611012013 BULAB 7034 Page 5 SECTION 13 Transportationand ShippingInformation DOT Shipping Information: Not Regulated. IMO/IMDG Shipping Information: Not Regulated. IA TA Shipping Information: Not Regulated. Unless otherwise stated, the shipping informationprovided above applies only to non-bulk containersof thisproduct. Propershipping name and generalshipping Information may vary depending on packagingand mode of shipment. All products shippedfrom Buckman locations have been properlypackaged and labeled accordingto appropriatehazardousmaterials shipping regulation&If any alterationof packaging,product, or mode of transportationisfurther intended, different shipping information, including but not limited to proper shipping name, RQ designation, and labeling may apply. Forfurther informationpertainingto the shippingrequirementsfor thisproduct,contact Buckman 's TransportationDepartmentor DOT Coordinator. SE N 14 Regulator Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SARA (SuperfundAmendments and ReauthorizationAct) SARA 302 Extremely HazardousSubstances List... No components of this product are listed. SARA 312 HazardCategory... No components of this product are listed. SARA 313 Toxic Chemicals List... No components of this product are present above the de minimus levels. CERCLA (Comprehensive EnvironmentalResponse. Compensation and Liabiliy Act) No components of this product are present above the de minimus levels. RCRA (Resource ConservationandRecovery Act) Listed Hazardous Waste No components of this product are listed. CWA (Clean Water Act) Listed Substances No components of this product are listed. FDA (Food and Drug Administration) This product Is not allowed for food contact uses. BundesinstitutOdr Risikobewertung (BMR) (The FederalInttitute for Risk Assessment) Not available. TSCA (Toxic Substances ControlAct) Applicabilty All components are listed on the TSCA Inventory. FIFRA (FederalInsecticide.Fungicide,and Rodenticide Act) This product is not a registered pesticide. HMISINPCA Rating... Health I Flammability 0 Reactivity 0 NFPA Ratings ............. Health I Flammability 0 Reactivity 0 State Regulations USA BULAB 7034

I.Mt Jevisiom.. 611012013 lUA Page 6 La.~t Jj'evision... 6/1 0/2013 BULAB 7034 Page 6 Various State Right To Know Acts.- Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. The information on this Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which Is not described In the Data Sheet is the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hazard Communication regulations. While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all known OSHA hazards associated with the Trade Secret component(s), If contained In this-product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to Its chemical description and is reasonably fit for the purpose referred to in the directions for use when used in accordance with the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of any kind, express or implied, concerning the product, including NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be implied by law and no agent of seller is authorized to alter this warranty In any way except In writing with a specific reference to this warranty. The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim Is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered In any court having jurisdiction thereof.

BUCKMAN LABORATORIES, INC. MATERIAL SAFETY DATA SHEET BULAB 9374 Revision date: 4/16/2007 Phone 1-800-BUCKNIAN Buckman Laboratories, Inc. 1256 North McLean Boulevard 24 Hour Emergency Phone: (901) 767-2722 Memphis, TN 38108 SECTION I OSHA HAZARD CLASSIFICA TIONS Corrosive to eyes and skin. Avoid breathing vapors or spray mists. SECT0IO2 HAZARDOUS COMIPONEiVTS Chemical Name CAS Number  % by Weight TL V Phosphoric acid 7664-38-2 6 ACGIH (United States). TWA: I mg/rn 3 STEL: 3 mg/rn' OSHA (United States). TWA: I mg/rnm Buckman Laboratoriesreports the component(s) listed above as known OSHA hazardousmaterial(s)contained in this product. FIRST AID INFORMA TION1 Eve Flush immediately with copious amounts of tap water or normal saline (minimum of 15 Exposure: minutes). Take exposed individual to a health care professional, preferably an ophthalmologist, for further evaluation. Skin Wash exposed area with plenty of water. Repeat washing. Remove contaminated clothing and Exposure: wash thoroughly before reuse. If irritation persists consult a health care professional. Inhalation: If exposure by inhalation is suspected, immediately move exposed individual to fresh air. If individual experiences nausea, headache, dizziness, has difficulty in breathing or is cyanotic, seek a health care professional immediately. Ingestion: DO NOT INDUCE VOMITING. Rinse with copious amounts of water or milk, first. Irrigate the esophagus and dilute stomach contents by slowly giving one (1) to two (2) glasses of water or milk. Avoid giving alcohol or alcohol related products. In cases where the individual is semi-comatose, comatose or convulsing, DO NOT GIVE FLUIDS BY NIOUTH. In case of intentional ingestion of the product seek medical assistance immediately; take individual to nearest medical facility. SECTION 4 PRIMAARY ROUTES OF EXPOSURE I. Effects from Acute Exposure: Eve Very hazardous in case of eve contact (irritant, corrosive). Inflammation of the eye is Exvosure': characterized by redness, watering, and itching.

La.i revisiou ... 4116/2007 BULAB 9374 Page 2 Skin Sensitization of the product: Not available. Exposure: Hazardous in case of skin contact (corrosive, irritant). Skin contact may produce burns. Skin inflammation is characterized by itching, scaling, reddening, or, occasionally, blistering. Inhalation: Hazardous in case of inhalation. Effects will depend on concentration and length of time of exposure. Ingestion: Ingestion is not expected to be a primary route of exposure.

2. Effects from Chronic Exposure:

The effects from chronic exposure to this product have not been fully evaluated. SECTION 5 Toxicological Infornmation Acute Effects: Not tested. Expected to be corrosive due to pH. Irritant/ Sensitization Effects: Very hazardous in case of eye contact (irritant, corrosive). Inflammation of the eye is characterized by redness, watering, and itching. Sensitization of the product: Not available. Hazardous in case of skin contact (corrosive, irritant). Skin contact may produce burns. Skin inflammation is characterized by itching, scaling, reddening, or, occasionally, blistering. Hazardous in case of inhalation. Effects will depend on concentration and length of time of exposure. CarcinogenicPotential: Not tested by Buckman Laboratories. Not shown as a carcinogen by OSHA, IARC, or NTP. Tareet Organs Effects: May cause damage to the following organs: upper respiratory tract, skin, eyes. Other Health Effects: None known. SECTION 6 Environmental Toxicological Information No infomiation available. SECTION 7 Physicaland Chemical Properties Appearance .............................. Straw colored liquid Odor ........................................... Slight. Density ...................................... 1.29 g/cm3 at 251C (771F) Flash Point ............................... CLOSED CUP: >1000 C (212 0 1F). (Pensky-Martens.)

.Welting/Freezing Point ...                        Not available.

Boiling Point............................ The lowest known value is 158°C (316.40 F) (Phosphoric acid). Solubilit............. ...... Soluble in cold water. Soluble in hot water. pH (Neal) .......................... <2 [Acidic.I pH (100 ppm in iwater) ........... 3-4 Vapor Pressure........................ Not available. o,/w PartitionCoefficient ....... Not available. Oxidizinig/Reducing Properties. Not available. i'scositO.................................... N ot available.

Last revision... 411612007 BULAB 9374 Page 3 AdditionalpH Information ...... Not available. NOTE: Tie physical data presentedabove are typical values and should not be construed as specifications. SECTION 8 Fire and E.rplosion Information Flammable Limits .................. Not available. ExtinguishingMedia ............... Water fog, carbon dioxide, foam, dry chemical. Special Firefighting Fire fighters should wear positive pressure self-contained breathing apparatus Procedures ............................ (SCBA) and full turnout gear. SECTION 9 Reactivity Information Stabilit'...................................... Stable under normal conditions of use and storage. Incompatibilit. .......................... Avoid all contact with materials not compatible with strong phosphoric acid solutions! This material may react with strong alkalis. Avoid contact with aluminum, zinc, mild steel, and stainless steels. CONSULT A RECOGNIZED CHEMICAL REFERENCE (per 29 CFR 1910.1200) IF COMPATIBILITY IS UNKNOWN OR IN QUESTION. Hazardous Decomposition Products .................................... Oxides of carbon, nitrogen and phosphorus. SECTION 10 Handling Precautions Eye wash fountains in the work place are STRONGLY recommended. If splashing can occur, a face shield is advisable. Chemical resistant gloves, indirect ventilation goggles, body-protective clothing, and chemical resistant safety shoes are required. Provide dilution ventilation to control vapor and\or mist level. When misting may occur in the work area, a NIOSH/MSHA approved respirator may be required. Use a respirator approved for the material and level of exposure. A comprehensive respiratory protection program is needed when respirators must be used. The handling precautions for this product are based on the characteristics of the neat product unless otherwise specified. SECTION II Satisfactory Materialsof Construction ABS (Plastic) Dow Sillastic Tube EPDNI rubber Buna-N rubber Butyl rubber Fiberglass-reinforced polyester 6/6 Nylon Polypropylene Polyethylene - crosslink Polyethylene - low density Polyethylene - high density PVC - flexible PVC - rigid Polyurethane tube Silicone rubber Stainless steels 304 and 316 Teflon Tygon Viton

Lost reijision ... 411&_2007 BULAB 9374 Page 4 NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user. SECTION 12 Spill, Leak, and DisposalProcedures SPILL AND LEAK RESPONSE GUIDELINES: Important: Before responding to a spill or leak of this product, review each section of this NISDS. Follow the recommendations given in the Handling Precautions sections. Check the Fire and Explosion Data section to determine if the use of non-sparking tools is merited. Insure that spilled or leaked product does not come into contact with materials listed as incompatible. If irritating fumes are present, consider evacuation of enclosed areas. Emergency Response Assistance: Emergency technical assistance is available at any time from Buckman Laboratories, Inc., by calling (901) 767-2722. Initially minimize area affected by the spill or leak. Block any potential routes to water systems (e.g., sewers, streams, lakes, etc.). Based on the product's toxicological and chemical properties, and on the size and location of the spill or leak, assess the impact on contaminated environments (e.g. water systems, ground, air equipment, etc.). There are no methods available to completely eliminate any toxicity this product may have on aquatic environments. NMinimize adverse effects on these environments. Buckman Laboratories, Inc. can be contacted for technical assistance. Determine if federal, state, and/or local release notification is required (see Regulatory Classifications section of this MSDS). Recover as much of the pure product as possible into appropriate containers. Later, determine if this recovered product can be used for its intended purpose. Address clean-up of contaminated environments. Spill or leak residuals may have to be collected and disposed of. Clay, soil, or commercially available absorbents may be used to recover any material that can not readily be recovered as pure product. Flushing residual material to an industrial sewer, if present at the site of a spill or leak incident, may be acceptable if authorized approval is obtained. If product and/or spill/leak residuals are flushed to an industrial sewer, insure that they do not come into contact with incompatible materials. Contact the person(s) responsible for the operation of your facility's industrial sewer system prior to intentionally flushing or pumping spills or leaks of this product to the industrial sewer. DISPOSAL GUIDELINES Note: Follow federal, state, and local regulations governing the disposal of waste materials. Neat Product: Contact your Buckman representative or Buckman Laboratories, Inc., at (901) 278-0330. Contaminated Materials: Determine if waste containing this product can be handled by available industrial effluent system or other on-site waste management unit. If off-site management is required, contact a company experienced in industrial waste management. This product is not specifically listed in 40 CFR 261 as a Resource Conservation and Recovery Act (RCRA) hazardous waste. However, spill or leak residuals may meet the criteria of a characteristic hazardous waste under this Act. Check the characteristics of the material to be disposed of and/or the physical and reactivity data given in this MSDS for the neat product. Container Disposal: Empty containers, as defined by appropriate sections of the RCRA, are not RCRA hazardous wastes. However, insure proper management of any residuals remaining in container. SECTION 13 Transportationand Shipping Information DOT Shipping'Ifrmination: UN1760, CORROSIVE LIQUID, N.O.S., (Phosphoric Acid), Class 8, P.G. I1I, ( ERG GUIDE 154) I.'IO/IIDG Shipping Information: UN 1760,CORROSIVE LIQUID, N.O.S., (Phosphoric Acid), Class 8, P.G. III, (EmS No. 8-15, NIFAG Table No. 760 & 4.3, ERG Guide 154, HazMat Code 4936540) L- T.-I Shipping Infiormation: UN1760, CORROSIVE LIQUID, N.O.S., (Phosphoric Acid), Class 8, P.G. IlI, (ERG Guide 154)

Last revisimi ...4/1612007 BULAB 9374 Page 5 Unless otherwise stated, the shipping informationprovided above applies only to non-bulk containersof this product. Propershipping name and generalshipping information may var' depending on packaging and imode of shipment. All products shippedfrom Buckman locations have been properly packaged and labeled accordingto appropriatehazardous materialsshipping regulations&if any alteration of packaging,product, or mode of transportationis further intended, different shipping information, includingbut not limited to proper shipping name, RQ designation, and labeling may apply. Forfurther information pertainingto the shipping requirementsfor this product, contact Buckman's TransportationDepartmentor DOT Coordinator. SECTION 14 Regulatory Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SA R4 (SuperfundA4 mendinents and Reauthorization.4 cO SARA 302 Extremely HazardousSubstances List ... No components of this product are listed. SARA 312 HazardCategory... Immediate (Acute) Health Hazard SARA 313 Toxic Chemicals List... Phosphoric acid CERCLA (Comprehensive EnvironmentalResponse, Compensation and Liability,Act) Phosphoric acid ..... 5000 lbs. RCRA (Resource Conversation and Recoveri, Act) Listed Hazardous Waste No components of this product are listed. CWA (Clean Water Act) Listed Substances No components of this product are listed. FDA (Food and Drug Adinituistration) This product is not approved for food contact uses. TSCA (Toxic Substances Control Act) Applicability All components are listed on the TSCA Inventory. FIFR,4 (FederalInsecticide, Fungeicide,and Rodenticide Act) This product is not a registered pesticide. H M ISINPCA Rating ... Health 3 Flammability 1 Reactivity I NFPA Ratings ............. Health 3 Flammability I Reactivity I State Regulations Various State Right To Know Acts ... Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. The information on this Material Safet Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which is not described in the Data Sheet is the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hazard Communication regulations. 'While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all knosn OSHA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to its chemical description and is reasonably fit for the purpose referred to in the directions for use when used in accordance wiith the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of any kind, express or implied, concerning the product, including NO IMPLIED V.ARRANTX OF MERCHANTABILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be implied by law and no agent of seller is authorized to alter this warranty in any way except in writing with a specific reference to this warranty.

Last revision ... 4/16/2007 BULAB 9374 Page 6 The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered in any court having jurisdiction thereof.

BUCKMAN LABORATORIES, INC. Material Safety Data Sheet /p) Buckman BULAB 9051 Revision date: 8/12/2010 Buckman Laboratories, Inc. 24 Hour Emergency Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626 SECTION 1 OSHA HAZARD CLASSIFICATIONS Corrosive to eyes and skin. SECTON 2HAZARDOUS COMPONENTS Chemical Name CAS Number  % by Welght TLV Phosphoric acid 7664-38-2 75 ACGIH (United States). TWA: I mg/rn' STEL: 3 mg/mr OSHA (United States). TWA: I mg/m' While some substances are claimed as trade secret in accordance with the provision of OSHA 29 CFR 1910.1200(1), all known hazards are clearly communicated within this document

]lSECMON3                                FIRSTAID INFORMATION Eve             Flush immediately with copious amounts of tap water or normal saline (minimum of 15 Exposure:       minutes). Take exposed individual to a health care professional, preferably an ophthalmologist, for further evaluation.

Skin Wash exposed area with plenty of water. Repeat washing. Remove contaminated clothing and

*4wosure:      wash thoroughly before reuse. If irritation persists consult a health care professional.

Inhalation: If exposure by inhalation is suspected, immediately move exposed individual to fresh air. If individual experiences nausea, headache, dizziness, has difficulty in breathing or is cyanotic, seek a health care professional immediately. Ingestion: DO NOT INDUCE VOMITING. Rinse with copious amounts of water or milk, first. Irrigate the esophagus and dilute stomach contents by slowly giving one (1) to two (2) glasses of water or milk. Avoid giving alcohol or alcohol related products. In cases where the individual is semi-comatose, comatose or convulsing, DO NOT GIVE FLUIDS BY MOUTH. In case of intentional ingestion of the product seek medical assistance immediately; take individual to nearest medical facility. USA 905015BUL USA BULAB 9051

Last Revision... 811212010 BULAB 9051 Page 2 SECTION 4 PRIMARY ROUTES OF EXPOSURE

1. Effects from Acute Exposure:

Eve Very hazardous in case of eye contact (irritant, corrosive). Inflammation of the eye is Exposure: characterized by redness, watering and itching. Skin Hazardous in case of skin contact (corrosive, irritant). Skin contact may produce burns. Skin

  .Exposure:               inflammation is characterized by itching, scaling, reddening or, occasionally, blistering.

Inhalation: May be harmful if inhaled. Do not breathe spray mists of the undiluted product. Effects will depend upon solution strength and length of time of exposure. Ingestion: Ingestion is not expected to be a primary route of exposure.

2. Effects from ChronicExposure:

The effects from chronic exposure to this product have not been fully evaluated. [~SECTION 5 ToxicologicalInformation Acute Effects: Not tested. Expected to be moderately toxic based on components. Irritant/ SensitizationEffects: Very hazardous in case of eye contact (irritant, corrosive). Inflammation of the eye is characterized by redness, watering and itching. Hazardous in case of skin contact (corrosive, irritant). Skin contact may produce burns. Skin inflammation is characterized by itching, scaling, reddening or, occasionally, blistering. May be harmful if inhaled. Do not breathe spray mists of the undiluted product. Effects will depend upon solution strength and length of time of exposure. Target OrgansEffects: May cause damage to the following organs: upper respiratory tract, skin, eyes. Other Health Effects: None known. JSECTION 6 Environmental Toxicological Information LC50= 138 ung/I 96 hours Mosquito fish. SECTION 7 Physical and ChemicalProperties Appearance .............................. Clear, viscous liquid Odor ........................................... Slight. Density ................... 1.58 g/cm' (251C / 771F) Flash Point ............................... Closed cup: >93.3'C (199.91F). (Pensky-Martens.) Melting/FreezingPoint .... -17.2 0C (10F) Boiling Point ........................... >1350 C (275 0F) Solubility ................. Easily soluble in cold water. Easily soluble in hot water. pH (Nea) ......................... <2 [Acidic.i USA BULAB 9051

Lost-RevIsiott.. 811212010 BULAB 9051 Page 3 pH (100 ppm in water) ........... Not available. Vapor Pressure ....................... Not available. o/w PartitionCoefficient ......... Not available. Oxidizing/Reducing Properties. Not available. Viscosity ................................... Not available. AdditionalpH Information ...... Not available. NOTE: The physical data presentedabove are typical values and should not be construedas specifications. SECTION 8 Fire and Explosion Information Flammable Llmits .................. Not available. Extinguishing Media ............... Water fog, carbon dioxide, foam, dry chemical. Spedial Firefighting Fire-fighters should wear positive pressure self-contained breathing apparatus Procedures............................... (SCBA) and full turnout gear. _SCTION 9 Reactivit Information Stability ...................................... Stable under normal conditions of use and storage. Incompatibility.......................... Strong bases (organic and inorganic), strong oxidizers, strong acids. Contact with metals or metal alloys may cause generation of explosive hydrogen gas. Hazardous Products Decomposition

                ................                 Thermal decomposition of product can produce toxic vapors of phosphorous oxide, hydrogen gas, oxides of carbon.

SECTIN 10 Handlling PrecautionsA Rubber gloves, safety glasses or goggles, body protective clothing and shoes are required. Eye-wash fountains in the work place are recommended. When splashing can occur, a neoprene apron or neoprene rain suit and a face shield are advisable. Provide dilution ventilation to control vapor and\or mist level. When misting may occur in the work area, a NIOSH/MSHA approved respirator may be required. Use a respirator approved for the material and level of exposure. A comprehensive respiratory protection program is needed when respirators must be used. The handling precautions for this product are based on the characteristics of the neat product unless otherwise specified. SECTION 11 Satisfactory Materialsof Construction EPDM PVC Ryton Kynar Viton, Teflon Tygon Polypropylene Polyethylene (RDPE & LDPE) Hastelloy-C NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user. USA BULAB 9051

Lass Revision... 8/12/2010 BULAB 9051 Page 4 [1SECTION 12 Spill, Leak, and DisposalProcedures SPILL AND LEAK RESPONSE GUIDELINES: Important: Before responding to a spill or leak of this product, review each section of this MSDS. Follow the recommendations given in the Handling Precautions sections. Check the Fire and Explosion Data section to determine if the use of non-sparking tools is merited. Insure that spilled or leaked product does not come into contact with materials listed as incompatible. If irritating fumes are present, consider evacuation of affected areas. Emergency Response Assistance: Emergency technical assistance is available at any time from Buckman Laboratories, Inc., by calling (901) 767-2722. Collect calls are accepted. Initially minimize area affected by the spill or leak. Block any potential routes to water systems (e.g., sewers, streams, lakes, etc.). Based on the product's toxicological and chemical properties, and on the size and location of the spill or leak, assess the impact on contaminated environments (e.g. water systems, ground, air equipment, etc.). There are no methods available to completely eliminate any toxicity this product may have on aquatic environments. Minimize adverse effects on these environments. Buckman Laboratories, Inc. can be contacted for technical assistance. Determine if federal, state, and/or local release notification is required (see Regulatory Information section of this MSDS). Recover as much of the pure product as possible into appropriate containers. Later, determine if this recovered product can be used for its intended purpose. Address clean-up of contaminated environments. Spill or leak residuals may have to be collected and disposed of. Clay, soil, or commercially available absorbents may be used to recover any material that can not readily be recovered as pure product. Flushing residual material to an industrial sewer, if present at the site of a spill or leak incident, may be acceptable if authorized approval is obtained. If product and/or spill/leak residuals are flushed to an industrial sewer, insure that they do not come into contact with incompatible materials. DISPOSAL GUIDELINES Note: Follow federal, state, and local regulations governing the disposal of waste materials. Neat Product: Contact your Buckman representative. Contaminated Materials: Determine if waste containing this product can be handled by available industrial effluent system or other on-site waste management unit. If off-site management is required, contact a company experienced in industrial waste management. Container Disposal: If assistance is needed, contact your Buckman sales representative. I[SECTION 13 Transportationand Shipping Information DOT ShippingInformation: UNI805, PHOSPHORIC ACID SOLUTION, Class 8, P.G. III, (ERG Guide 154) IMO/IMDG Shipping Information: UN1805, PHOSPHORIC ACID, LIQUID, Class 8, P.G. III, (EmS No. F-A, S-B, ERG Guide 154, HazMat Code 4930248) IA TA Shipping Information: UN1805, PHOSPHORIC ACID, LIQUID, Class 8, P.G. III, (ERG Guide 154, ERG Code 8L) When shipped in a single package containing MORE THAN 505 GAL (6,666 LBS), this product contains a reportable quantity of PHOSPHORIC ACID and the shipping description should be preceded or followed by the letters "RQ". BULAB 9051 USA USA BULAB 9051

Last-Ravisjoh... 811212040 BULAB 9051 Page 5 Unless otherwise stated,the shipping Informationprovideddbove applies only to non-bulk containersof this product. Propershipping name and general shippingInformation may vary depending on packaging and mode of shipment. All productsshippedfrom Buckman locations have been properlypackaged and labeled accordingto appropriatehazardousmaterials shipping regulations If any alterationof packaging,product, or mode of transportationis further intended, different shipping information, including but not limited to proper shipping name, RQ designation, and labeling may apply. Forfurther informationpertainingto the shipping requirementsfor this product, contact Buckman 's TransportationDepartment or DOT Coordinator. SECTION 14 Regulatory Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SARA (SuperfundAmendments and ReauthorizationAct) SARA 302 Extremely Hazardous Substances List... No components of this product are listed. SARA 312 Hazard Category... Immediate (Acute) Health Hazard SARA 313 Toxic Chemicals List... No components of this product are present above the de minimus levels. CERCLA (ComprehensiveEnvironmentalResponse. Compensation and Liability Act) Phosphoric acid ..... RQ = 5000 lbs. RCRA (Resource Conservationand Recovery Act) Listed Hazardous Waste No components of this product are listed; however, this product may need to be disposed of as a Hazardous Waste based on its corrosivity characteristic (pH <2). CWA (Clean Water Act) Listed Substances No components of this product are listed. FDA (Food and Drug Administration) This product is allowed under the following FDA (21 CFR) sections :176.210. TSCA (Toxic Substances ControlAct) Applicability All components are listed on the TSCA Inventory. FIFRA (FederalInsecticide, Fungicide,and RodenticideAct) This product is not a registered pesticide. HMIS/NPCA Rating.. Health 2 Flammability 0 Reactivity 0 NFPA Ratings............. Health 2 Flammability 0 Reactivity 0 State Regtulations Various State Right To Know Acts... Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. BULAB 9051 USA USA BULAB 9051

Last Revisiot... 8/12/2040 BULAB 9051 Page 6 The information on this Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which is not described in the Data Sheet is thie responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hazard Communication regulations. While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all known OSHA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to its chemical description and is reasonably fit for the purpose referred to in the directions for use when used in accordance with the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of any kind, express or implied, concerning the product, including NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be implied by law and no agent of seller is authorized to alter this warranty in any way except in writing with a specific reference to this warranty. The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered in any court having jurisdiction thereof.

BUCKMAN LABORATORIES, INC. Material Safety Data Sheet Buckman BULAB 7005 Revision date: 1214/2009 Buckman Laboratories, Inc. 24 Hour Emergency Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626 SSECTI ON 1 OSHA HAZARD CL4SSIFICATIONS Irritating to eyes and skin. SECTION 2 HA4ZARDOUS COMPONENTS ChemicalName CAS Number  % by Weight TL.V Acrylamide-Acrylic Acid Copolymer Not available. While some substancesare daimed as trade secret in accordancewith the provision of OSHA 29 CFR 1910.1200(1), all known hazardsare dearly communicatedwithin this document. SE(TION 3 FIRSTAIDINFORMATION Eve Flush immediately with copious amounts of tap water or normal saline (minimum of 15 Exposure: minutes). Take exposed individual to a health care professional, preferably an ophthalmologist, for further evaluation. Skin Wash exposed area with plenty of water. Repeat washing. Remove contaminated clothing and Exposure: wash thoroughly before reuse. If irritation persists consult a health care professional. Inhalation: If exposure by inhalation is suspected, immediately move exposed individual to fresh air. If individual experiences nausea, headache, dizziness, has difficulty in breathing or is cyanotic, seek a health care professional immediately. Ingestion: DO NOT INDUCE VOMITING. Rinse with copious amounts of water or milk, first. Irrigate the esophagus and dilute stomach contents by slowly giving one (1) to two (2) glasses of water or milk. Avoid giving alcohol or alcohol related products. In cases where the individual is semi-comatose, comatose or convulsing, DO NOT GIVE FLUIDS BY MOUTH. In case of intentional ingestion of the product seek medical assistance immediately; take individual to nearest medical facility. USA BULAB 7005

' LastRiWsion... 121412009 BULAB 7005 Page 2 SECTION 4 PRIMA Y ROUTES OFrEXPOSURE

1. Effects from Acute Exposure:

Eve Hazardous in case of eye contact (irritant). Exposure: Skin Hazardous in case of skin contact (irritant). Skin inflammation is characterized by itching, Exposure: scaling, reddening or, occasionally, blistering. Inhalation: May be harmful if inhaled. Do not breathe spray mists of the undiluted product. Effects will depend upon solution strength and length of time of exposure. Ingestion: Ingestion is not expected to be a primary route of exposure.

2. Effects from Chronic Exposure:

The effects from chronic exposure to this product have not been fully evaluated. SECTIONS ToxicologicalInformation Acute Effects: Acute Oral (LD50) = >5000 mg/kg Rat Acute Dermal (LD50) = >2000 mg/kg Rabbit IrritantloSensitization Effects: Hazardous in case of eye contact (irritant). Hazardous in case of skin contact (irritant). Skin inflammation is characterized by itching, scaling, reddening or, occasionally, blistering. May be harmful if inhaled. Do not breathe spray mists of the undiluted product. Effects will depend upon solution strength and length of time of exposure. Target OrgansEffects: May cause damage to the following organs: upper respiratory tract, skin, eyes. Other Health Effects: None known, not tested by Buckman Laboratories. SSECTION 6 Environmental ToxicologicalInformation LC50 168 mg/i 48 hours Ceriodaphniadubia LCSO = 450 mg/1 96 hours Fatheadminnow (studies were conducted with the primary ingredient) ISECTION 7 Physicaland ChemicalProperties Appearance ........................... Clear to slightly hazy, colorless liquid Odor...................................... Slight. DensitY ............. 1.21 g/cm3 (25 0C / 770F) Flash Point.............................. Closed cup: >100°C (2121F). Meftlng/FreezingPoint .... Not available. BoilingPoint ...................... >100 0 C (212 01F) Solability ................................. Soluble in cold water. Soluble in hot water. pH (Neat ............- 4.1 to 4.5 [Acidic.] PH (100 ppm in water).......... Not available. USA BULAB 7005

. Last RýV'&'Sion- 121412009 BULAB 7005 Page 3 Vapor Pressure .................... Not available. o/w Partition Coefficen..... Not available. Oxidizing/Reducing Properties. Not available. Viscosity .... . ....................... Dynamic: 400 to 800 cP AdditionalpH Information..... Not available. NOTE: The physical datapresentedabove are typical values and should not be construedas specifications. SECTION 8 Fire and Explosion Information FlammableLimits ................. Not available. ExtinguishingMedia ............. Water fog, carbon dioxide, foam, dry chemical. Special Firefighting Fire-fighters should wear positive pressure self-contained breathing apparatus Procedures.............. (SCBA) and full turnout gear. EReactivit Inormation Stability ..................................... Stable under normal conditions of use and storage. Incompatibility ................ None known. HazardousDecomposition Products.................................. None known, but carbon monoxide may be formed upon burning. SSECTION 10 HandlingPrecautions Provide exhaust ventilation or other engineering controls to keep the airborne concentrations below established levels or to control vapor and/or mist level. When established limits are exceeded or misting may occur in the work area, a NIOSH/MSHA approved respirator may be required. Use a respirator approved for the material and level of exposure. A comprehensive respiratory protection program is needed when respirators must be used. Use chemical resistant gloves, indirect ventilation goggles, body-protective clothing, and chemical resistant safety shoes. Emergency showers and eye wash stations should be available. Educate and train employees in the safe use and handling of this product. The handling precautions for this product are based on the characteristics of the neat product unless otherwise specified. Teflon Polyethylene - low density PVC - rigid PVC - flexible Silicone rubber Viton Polypropylene Van Leer epoxy liner 136 304 Stainless steel 316 Stainless steel Polyethylene - crosslink Polyethylene - high density Rehau Tube EPDM rubber USA BULAB 7005

Last Rývislon... 121412009 BULAB 7005 Page 4 Neoprene Buna-N rubber Butyl rubber ABS (Plastic) 6/6 Nylon Morton test liner (108 T 44LV) Tygon tubing R3603 Tygon F-4040 Polyisoprene Rubber Polyurethane Tubing Pharmed Tubing FRP NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user.

    /.I         ,2Spill,                              Leak, adDisp~osalProcedures SPILL AND LEAK RESPONSE GUIDELINES:

Important: Before responding to a spill or leak of this product, review each section of this MSDS. Follow the recommendations given in the Handling Precautions sections. Check the Fire and Explosion Data section to determine If the use of non-sparking tools is merited. Insure that spilled or leaked product does not come into contact with materials listed as Incompatible. If irritating fumes are present, consider evacuation of enclosed areas. Emergency Response Assistance: Emergency technical assistance is available at any time from Buckman Laboratories, Inc., by calling (901) 767-2722. Initially minimize area affected by the spill or leak. Block any potential routes to water systems (e.g., sewers, streams, lakes, etc.). Based on the product's toxicological and chemical properties, and on the size and location of the spill or leak, assess the Impact on contaminated environments (e.g. water systems, ground, air equipment, etc.). There are no methods available to completely eliminate any toxicity this product may have on aquatic environments. Minimize adverse effects on these environments. Buckman Laboratories, Inc. can be contacted for technical assistance. Determine if federal, state, and/or local release notification Is required (see Regulatory Classifications section of this MSDS). Recover as much of the pure product as possible into appropriate containers. Later, determine if this recovered product can be used for its intended purpose. Address clean-up of contaminated environments. Spill or leak residuals may have to be collected and disposed of. Clay, soil, or commercially available absorbents may be used to recover any material that can not readily be recovered as pure product. Flushing residual material to an industrial sewer, if present at the site of a spill or leak incident, may be acceptable if authorized approval Isobtained. If product and/or spill/leak residuals are flushed to an industrial sewer, insure that they do not come into contact with incompatible materials. Contact the person(s) responsible for the operation of your facility's industrial sewer system prior to intentionally flushing or pumping spills or leaks of this product to the industrial sewer. DISPOSAL GUIDELINES Note: Follow federal, state, and local regulations governing the disposal of waste materials. Neat Product: Contact your Buckman representative or Buckman Laboratories, Inc., at (901) 278-0330. Contaminated Materials: Determine if waste containing this product can be handled by available industrial effluent system or other on-site waste management unit. If off-site management Isrequired, contact a company experienced in industrial waste management. This product is not specifically listed in 40 CFR 261 as a Resource Conservation and Recovery Act (RCRA) hazardous waste. However, spill or leak residuals may meet the criteria of a characteristic hazardous waste under this Act. Check the characteristics of the material to be disposed of and/or the physical and reactivity data given in this MSDS for the neat product. Container Disposal: Empty containers, as defined by appropriate sections of the RCRA, are not RCRA hazardous wastes. However, insure proper management of any residuals remaining in container. USA BULAB 7005

.1Last R61sion... 121412009 BULAB 7005 Page 5 SSECTION 13 Transportationand Shipping Information DOT Shipping Information: NON-BULLK: UN1760, CORROSIVE LIQUID, N.O.S., (Acrylamide-Acrylic Acid Copolymer), Class 8, P.G. III, (ERG Guide 154) BULK: NOT REGULATED per 49 CFR 173.154 (d) when packaged in non-steel packagings. Ji1O/IMDG Shipping Information: UN1760, CORROSIVE LIQUID, N.O.S., (Acrylamide-Acrylic Acid Copolymer), Class 8, P.G. III, ( EmS No. F-A, S-B, ERG Guide 154, HazMat Code 4936540) IATA Shipping Information: UN1760, CORROSIVE LIQUID, N.O.S., (Acrylamide-Acrylic Acid Copolymer), Class 8, P.G. IH, ( ERG Guide 154, ERG Code 8L) Unless otherwisestated, the shipping informationprovided above applies only to non-bulk containersof this product. Propershipping name andgeneralshipping information may vary depending on packaging andmode ofshipment. AIl productsshippedfrom Buckman locationshave been properlypackaged andlabeledaccordingto appropriatehazardousmaterialsshipping regulations. If any alterationofpackaging,product, or mode of transportationisfurther intended,different shipping information+including but not limited to proper shipping name, RQ designation,and labelingmay apply. Forfurther informationpertainingto the shipping requirementsfor thisproduct, contact Buckman's TransportationDepartmentor DOT Coordinator. SECTION 14 Regulatory Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SARA (SuverfundAmendments andReauthorizationAct) SARA 302 Extremely HazardousSubstances List.. No components of this product are listed. SARA 312 HazardCategory... Immediate (Acute) Health Hazard SARA 313 Toxic Chemicals List... No components of this product are present above the de minimus levels. CERCLA (Comprehensive EnvironmentalResponse, Compensation and Liability Act) No components of this product are present above the de minimus levels. RCRA (Resource Conversation and Recovery Act) Listed HazardousWaste No components of this product are listed.

    !CWA (Clean Water Act) ListedSubstances No components of this product are listed.

FDA (Food and DrugAdministration) This product is allowed under the following FDA (21 CFR) sections :17 6 .170; 173.310 Limitations: 176.170 1) as a thickening agent for natural latex coatings, provided it is used at a level not to exceed 2 percent by weight of coating solids, 2) as a pigment dlspersaut in coating at a level not to exceed 0.25 percent by weight of pigment..

    .iundesinstitutflit Risikobewertung (BMR) (The FederalInstitute for Risk Assessment) xXXVl TSCA (Toxic Substances ControlAct) Applicability All components are listed on the TSCA Inventory.

FIFRA (FederalInsecticide.Fungicide.and RodenticideAct) This product is not a registered pesticide. HMJS/NPCA Rating 1-Icalth 1 Flammability 1 Reactivity 0 USA BULAB 7005

` Last R6ision... 121412009 BULAB 7005 Page 6 NFPA Ratings ............. Health 1 Flammability 1 Reactivity 0 Stale Regulations Various State Right To Know Acts... Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. The information on this Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which Is not described In the Data Sheet is the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hazard Communication regulations. While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all known OSHA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to its chemical description and Is reasonably fit for the purpose referred to In the directions for use when used in accordance with the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of any kind, express or Implied, concerning the product, Including NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be Implied by law and no agent of seller is authorized to alter this warranty in any way except in writing with a specific reference to this warranty. The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim Is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration In accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered in any court having jurisdiction thereof.

Bulab 7005 Deposit control agent " Inhibits formation of mineral scales Packaging and handling " Disperses silt, suspended solids, and other Bulab 7005 Is a water-soluble liquid packed In non-returnable drums, returnable semi-bulk containers, and foulants In bulk. Keep container closed when not In use. " Helps maximize heat transfer Improper handlIng of this product can be Injurious to workers. Observe all safety precautions shown on Bulab 7005 is a co-polymer of acrylic acid and acryla- the label and in the Material Safety Data Sheet mide that inhibits scale formed by the precipitation of calcium, magnesium, and other polyvalent metal Ions. The product is a highly effective anionic dispersant that functions as a threshold type of inhibitor and a crystal distortion agent. Since Bulab 7005 is resistant to hydro-lytic decomposition, It is effective over a broad range of environmental conditions. Dosage and feeding The specific dosage of Bulab 7005 will vary depending on system operating conditions and water chemistry. Your Buckman representative will design the most effective treatment program for your system. For best results, continuous feed is recommended. The product can be fed neat or diluted with water to a convenient feeding strength. I Please see important information on reverse side. I o 1994 Buckman Laboratories, Inc. All rights reserved. Printed in U.S.A. Product data W1 5W (12195) CREATIVITY FOR OUR CUSTOMERS A'N,

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Low Volume Waste Chemical Additives (internal to Once Through Cooling)

a. Manufacturers Product Identification Number: Bulab 6013/ Bulab 6042

b. Product Use: Biocide used for cleaning RO membranes

c. Chemical Composition: See attached data sheets

d. Classification (non-persistent, persistent or bioaccumulative): Not Available

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Continuous low concentration feed; as needed

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not Detectable*

i. Outfall: 004 (internal)

• Residual product would not be reasonably expected to be detected in the wastestream since it discharges through retention pond where it commingles with other biocide-demanding wastestreams prior to discharge through an internal outfall.

BUCKMAN LABORATORIES, INC. Material Safety Data Sheet Buckman BULAB 6013 Revision date: 12/4/2009 Buckman Laboratories, Inc. 24 Hour Emerzency Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626 SECTION I OSHA HAZARD CLASSIFICATIONS Corrosive to eyes. Irritating to skin. Avoid breathing vapors or spray mists. SSECTION 2 HAZARDOUS COMPONENTS Chemical Name CAS Number  % bhiWeight TL V Potassium dimethyldithiocarbamate 1;8-03-0 50 Not available. While some substances are claimed as trade secret in accordancewith the provision of OSHA 29 CFR 1910.1200(i), all known hazards are clearly communicated within this document. SECTION 3 FIRSTAID INFORMA TION Eve Flush immediately with copious amounts of tap water or normal saline (minimum of 15 Exposure: minutes). Take exposed individual to a health care professional, preferably an ophthalmologist, for further evaluation. Skin Wash exposed area with plenty of water. Repeat washing. Remove contaminated clothing and Exposure: wash thoroughly before reuse. If irritation persists consult a health care professional. Inhalation: If exposure by inhalation is suspected, immediately move exposed individual to fresh air. If individual experiences nausea, headache, dizziness, has difficulty in breathing or is cyanotic, seek a health care professional immediately. Ineestion: DO NOT INDUCE VOMITING. Rinse with copious amounts of water or milk, first. Irrigate the esophagus and dilute stomach contents by slowly giving one (1) to two (2) glasses of water or milk. Avoid giving alcohol or alcohol related products. In cases where the individual is semi-comatose, comatose or convulsing, DO NOT GIVE FLUIDS BY MOUTH. In case of intentional ingestion of the product seek medical assistance immediately; take individual to nearest medical facility. UISA BULAB 6013

Last Revision... 1214/2009 BULAB 6013 Page 2 SECTION 4 PRIMARY ROUTES OFEXPOSURE

1. Effects from Acute Exposure:

Eve Very hazardous in case of eye contact (irritant, corrosive). Inflammation of the eye is Exposure: characterized by redness, watering and itching. Skin_ Hazardous in case of skin contact (irritant, sensitizer). Non-corrosive to skin. Skin contact Exposure: may produce burns. Skin inflammation is characterized by itching, scaling, reddening or, occasionally, blistering. Inhalation: May be harmful if inhaled. Do not breathe spray mists of the product. Effects will depend upon solution strength and length of time of exposure. Ingestion: Ingestion is not expected to be a primary route of exposure.

2. Effects from Chronic Exposure:

The effects from chronic exposure to this product have not been fully evaluated. SECTION 5 ToxicologicalInformation Acute Effects: Acute Oral (LD50) = 2030 mg/kg Rat Acute Dermal (LD50) = 2990 mg/kg Rabbit Irritant/Sensitization Effects: Very hazardous in case of eye contact (irritant, corrosive). Inflammation of the eye is characterized by redness, watering and itching. Hazardous in case of skin contact (irritant, sensitizer). Non-corrosive to skin. Skin contact may produce burns. Skin inflammation is characterized by itching, scaling, reddening or, occasionally, blistering. May be harmful if inhaled. Do not breathe spray mists of the product. Effects will depend upon solution strength and length of time of exposure. Target Oreans Effects: May cause damage to the following organs: upper respiratory tract, skin, eyes. Other Health Effects: This product has been shown to be a weak sensitizer according to animal data. No instances of human sensitization are known. 90 day exposure studies did not reveal any adverse effects. This product has tested positive in several in vitro mutagenicity assays. SSECTION 6 Environmental Toxicological Information LC50 = 0.34 mg/I 48 hours Daphnia magna LC50 = 0.36 mg/I 96 hours Rainbow trout LC50 = 0.06 mg/I 96 hours Fathead minnow SECTION 7 Physical and ChenicalProperties Appearance .............................. Clear, green liquid Odor ........................................... Pungent, am moniacal Density ...................................... 1.23 g/cm 3 Flash Point............................... Closed cup: >1000 C (212 0 F). Melting/Freezing Point .... -35oC (-31-F) USA BULAB 6013

Last Revision... 12/4/2009 BULAB 6013 Page 3 Boiling Point ............................ Not available. Solubiliov .................................. Easily soluble in cold water. Easily soluble in hot water. pH (Neat) .................................. >13.5 [Basic.] pH (100 ppm in water) ........... 7.0 - 9.0 Vapor Pressure....................... Not available. o/4, PartitionCoefficient ......... Not available. Oxidizing/Reducing Properties. Not available. JVscosio,. .................................. Not available. AdditionalpH Information ...... pH (10% solution) = 12.3. NOTE: The physical datapresentedabove are typical values andshould not be construed as specifications. SECTION 8 Fire and Explosion Information Flammable Limits .................. Not available. Extinguishing Atedia ............... Water fog, carbon dioxide, foam, dry chemical. Special Firefighting Fire-fighters should wear positive pressure self-contained breathing apparatus Procedures........................... (SCBA) and full turnout gear. SECTION 9 Reactivity Information Stabilit. ...................................... Stable under normal conditions of use and storage. Incompatibilit,.......................... Strong acids, strong oxidizers, and reducing agents. Hazardous Decomposition Products................................... Carbon disulfide and dimethylamine may be generated upon acidification. Thermal degradation may generate vapors of hydrogen sulfide. Contact with fire or strong oxidants may generate methyl isothiocyanates, oxides of sulfur, nitrogen, and carbon. SECTION 10 Handling Precautions Local exhaust should be maintained to control vapor and mist levels. Rubber gloves, safety glasses or goggles and body protective clothing and shoes are required. A face shield is advisable if splashing can occur. Eye-wash fountains in the work place are strongly recommended. The handling precautions for this product are based on the characteristics of the neat product unless otherwise specified. SECTION II Satisfactory Materialsof Construction Plexiglas Teflon Buna-N rubber Viton EPDM rubber PVC - flexible Neoprene Polyethylene - low density Tygon R3603 Tyril 880 Silicone rubber Hypalon Stainless steels 304 and 316 USA BULAB 6013

Last Revision... 121412009 BULAB 6013 Page 4 6/6 Nylon Polyethylene - high density Mild steel C1010 Polyethylene - crosslink Polypropylene PVC - rigid Butyl rubber ABS (Plastic) Morton test liner (108 T 44LV) Dow Sillastic Tube Rehau Tube Polyurethane Liner Norprene Tubing FRP G-10 Pharmed Tubing NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user. SECTION 12 Spill, Leak, andDisposalProcedures SPILL AND LEAK RESPONSE GUIDELINES: Important: Before responding to a spill or leak of this product, review each section of this MSDS. Follow the recommendations given in the Handling Precautions sections. Check the Fire and Explosion Data section to determine if the use of non-sparking tools is merited. Insure that spilled or leaked product does not come into contact with materials listed as incompatible. If irritating fumes are present, consider evacuation of enclosed areas. Emergency Response Assistance: Emergency technical assistance is available at any time from Buckman Laboratories, Inc., by calling (901) 767-2722. Initially minimize area affected by the spill or leak. Block any potential routes to water systems (e.g., sewers, streams, lakes, etc.). Based on the product's toxicological and chemical properties, and on the size and location of the spill or leak, assess the impact on contaminated environments (e.g. water systems, ground, air equipment, etc.). There are no methods available to completely eliminate any toxicity this product may have on aquatic environments. Minimize adverse effects on these environments. Buckman Laboratories, Inc. can be contacted for technical assistance. Determine if federal, state, and/or local release notification is required (see Regulatory Classifications section of this MSDS). Recover as much of the pure product as possible into appropriate containers. Later, determine if this recovered product can be used for its intended purpose. Address clean-up of contaminated environments. Spill or leak residuals may have to be collected and disposed of. Clay, soil, or commercially available absorbents may be used to recover any material that can not readily be recovered as pure product. Flushing residual material to an industrial sewer, if present at the site of a spill or leak incident, may be acceptable if authorized approval is obtained. If product and/or spill/leak residuals are flushed to an industrial sewer, insure that they do not come into contact with incompatible materials. Contact the person(s) responsible for the operation of your facility's industrial sewer system prior to intentionally flushing or pumping spills or leaks of this product to the industrial sewer. DISPOSAL GUIDELINES Note: Follow federal, state, and local regulations governing the disposal of waste materials. Neat Product: Contact your Buckman representative or Buckman Laboratories, Inc., at (901) 278-0330. Contaminated Materials: Determine if waste containing this product can be handled by available industrial effluent system or other on-site waste management unit. If off-site management is required, contact a company experienced in industrial waste management. This product is not specifically listed in 40 CFR 261 as a Resource Conservation and Recovery Act (RCRA) hazardous waste. However, spill or leak residuals may meet the criteria of a characteristic hazardous waste under this Act. Check the characteristics of the material to be disposed of and/or the physical and reactivity data given in this MSDS for the neat product. USA BULAB 6013

Last Revision... 12/412009 BULAB 6013 Page 5 Container Disposal: Empty containers, as defined by appropriate sections of the RCRA, are not RCRA hazardous wastes. However, insure proper management of any residuals remaining in container. SECTION 13 Transportationand Shipping Information DOT Shipping Information: NON-BULK: UN3267, CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S., (Potassium dimethyldithiocarbamate), Class 8, P.G. HI, (ERG Guide 153) --- BULK: NOT REGULATED per 49 CFR 173.154(d)(2) when transported in non-steel packagings. lMO/IMDG Shipping Information: UN3267, CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S., (Potassium dimethyldithiocarbamate), Class 8, P.G. III, MARINE POLLUTANT, (EmS No. F-A, S-B, ERG Guide 153, HazMat Code 4935263) IA TA Shipping Information: UN3267, CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S., (Potassium dimethyldithiocarbamate), Class 8, P.G. 11, (ERG Guide 153, ERG Code 8L)

                           .............................................................................

Unless otherwise stated,the shipping informationprovided above applies only to non-bulk containers of this product Propershipping name and generalshipping informationmay vary depending on packagingand mode of shipmenL All products shippedfrom Buckman locations have been properlypackaged and labeled accordingto appropriatehazardous materialsshipping regulations. If any alteration ofpackaging,product, or mode of transportationisfurther intended, different shipping information,including but not limited to propershipping name, RQ designation, and labelingmay apply. Forfurther informationpertainingto the shipping requirementsfor this product, contact Buckman's TransportationDepartmentor DOT Coordinator. SECTION 14 Regulatory Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SARA (SuperfundAmendments and ReauthorizationAct) SARA 302 Extremely HazardousSubstances List... No components of this product are listed. SARA 312 HazardCategory... Immediate (Acute) Health Hazard SARA 313 Toxic Chemicals List... This product contains the following toxic chemical(s) subject to the reporting requirements of section 313 of Title M of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR part 372: Potassium dimethyldithiocarbamate CERCLA (Comprehensive EnvironnentalResponse, Compensationand Liability Act) No components of this product are present above the de minimus levels. RCRA (Resource Conversationand Recovery Act) Listed Hazardous Waste No components of this product are listed. CWA (Clean Water Act) Listed Substances No components of this product are listed. FDA (Food and DrugAdministration) This product is allowed under the following FDA (21 CFR) sections :176.300. TSCA (Toxic Substances ControlAct) Applicability All components may not be listed on the TSCA Inventory. Registered pesticides are exempt from the requirements of TSCA. USA BULAB 6013

Last Revision... 12,1412009 BULAB 6013 Page 6 FIFRA (FederalInsecticide, Fungicide, and RodenticideAct) This product is a registered pesticide. EPA Reg. No. 1448-70 HMIS/NPCA Rating... Health 3 Flammability 1 Reactivity I NFPA Rating-es ............. Health 3 Flammability 1 Reactivity 1 State Re2ulations Various State Right To Know Acts... Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. The information on this Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which is not described in the Data Sheet is the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hazard Communication regulations. While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all known OSHA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to its chemical description and is reasonably fit for the purpose referred to in the directions for use when used in accordance with the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of any kind, express or implied, concerning the product, including NO IMPLIED WARRANTY OF MERCIANTABILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be implied by law and no agent of seller is authorized to alter this warranty in any way except in writing with a specific reference to this warranty. The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered in any court having jurisdiction thereof.

BUCKMAN LABORATORIES, INC. Material Safety Data Sheet Buckman BULAB 6042 Revision date: 1/20/2011 Buckman Laboratories, Inc. 24 Hour Emergency Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626 SECTON IOSH1A HAZARD CLASSIFICATIONS DANGER! Keep out of reach of children. Corrosive. Causes severe eye burns. Harmful if swallowed. Causes skin irritation. Highly toxic to fish and/or other aquatic organisms. Toxic fumes may be released in fire situations. SECTION 2 HAZARDOUS COMPONENTS ChemicalName CAS Number %by Weieht TL V 2,2-Dibromo-3-nitrilopropionamide 10222-01-2 20 Not available. While some substances are claimedas trade secret in accordancewith the provision of OSHA 29 CFR 1910.1200(i), all known hazardsare clearly communicated within this document. SSECTION 3 FIRSTAID INFORMATION Eve Exposure: Wash immediately and continuously with flowing water for at least 30 minutes. Remove contact lenses after the first 5 minutes and continue washing. Obtain prompt medical consultation, preferably from an ophthalmologist. Skin Take off contaminated clothing. Rinse skin immediately with soap and plenty of water for 15-20 Exposure: minutes. Call a poison control center or doctor for treatment advice. Wash clothing before reuse. Shoes and other leather items which cannot be decontaminated should be disposed of properly. Suitable emergency safety shower facility should be available in work area. Inhalation: Move person to fresh air. If person is not breathing, call an emergency responder or ambulance, then give artificial respiration; if by mouth to mouth, use rescuer protection (pocket mask etc). Call a poison control center or doctor for treatment advice. Ingestion: Call a poison control center or doctor immediately for treatment advice. Have person sip a glass of water if able to swallow. Do not induce vomiting unless told to do so by the poison control center or doctor. Never give anything by mouth to an unconscious person. Notes to physician: Chemical eye burns may require extended irrigation.Obtain prompt consultation, preferablyfrom an ophthalmologist.If burn is present, treat as any thermal burn, after decontamination. No spefic antidote. Treatment of exposure should be directed at the control of symptioms and the clinical condition of the patient. Have the Safety Data Sheet, and if available,the productcontaineror label with you when calling a poison control center or doctor, or going for treatment. Emergency PersonnelProtection: FirstAid respondersshouldpay attention to self-protection and use the recommendedprotective clothing (chemical resistantgloves, splash protection). If potentialfor exposure exists refer to section 10 (HandlingPrecautions)for specific personalprotective equipment. ( SA BULAB 6042

Last Revision... 1,2 012 0 11 BULAB 6042 Page 2 SECTION 4 PRIMARY ROUTES OFEXPOSURE

1. Effects from Acute Exposure:

Eve May cause pain disproportionate to the level of irritation to eye tissues. May cause severe Exposure: irritation with corneal injury which may result in permanent impairment of vision, even blindness. Chemical burns may occur. Skin, Prolonged contact may cause severe skin irritation with local redness and discomfort. Exposure: Repeated exposure may cause irritation, even a burn. May cause more severe response if skin is abraded (scratched or cut). Prolonged skin contact is unlikely to result in absorption of harmful amounts. A similar formulation with less active ingredient has caused allergic skin reactions when tested in guinea pigs. Inhalation: Mist may cause irritation of upper respiratory tract (nose and throat). Ingestion: Harmful if swallowed.Small amounts swallowed incidental to normal handling operations are not likely to cause injury; however, swallowing larger amounts may cause serious injury, even death.

2. Effects from Chronic Exposure:

Developmental Toxicity: For the active ingredient(s): Has been toxic to the fetus in laboratory animals at doses toxic to the mother. Did not cause birth defects in laboratory animals. Reproductive Toxicity: No relevant information found. Genetic Toxicology: For the active ingredient(s): In vitro genetic toxicity studies were negative. For the major components: Animal genetic toxicity studies were negative. SECTION 5 ToxicologicalInformation A cute Effects: Acute Oral (LD50) = 510 mg/kg Rat Acute Dermal (LD50) = >2000 mg/kg Rabbit Acute Inhalation (LC50) = 1.25 mg/I ( 4 hours) Rat Female Acute Inhalation (LC50) = 1.4 mg/I (4 hours) Rat Male Irritant/ Sensitization Effects: May cause pain disproportionate to the level of irritation to eye tissues. May cause severe irritation with corneal injury which may result in permanent impairment of vision, even blindness. Chemical burns may occur. Prolonged contact may cause severe skin irritation with local redness and discomfort. Repeated exposure may cause irritation, even a burn. May cause more severe response if skin is abraded (scratched or cut). Prolonged skin contact is unlikely to result in absorption of harmful amounts. A similar formulation with less active ingredient has caused allergic skin reactions when tested in guinea pigs. Mist may cause irritation of upper respiratory tract (nose and throat). CarcinogenicPotential: Active ingredient did not cause cancer in laboratory animals. Target Organs Effects: May cause damage to the following organs: kidneys, upper respiratory tract, skin, eyes. Other Health Effects: USA BULAB 6042

Last Revision... 112012011 BULAB 6042 Page 3 Aspiration hazard: Based on available information, aspiration hazard could not be determined. Effects of Repeated Exposure: Excessive exposure may increase the blood and tissue levels of bromine. Observations in animals include kidney effects following repeated ingestion of active ingredient, but no evidence of systemic toxicity following repeated dermal exposure at maximum attainable doses. SECTION 6 Environmental Toxicological Information LCS0 = 3.6 mg/I 96 hours Rainbow trout LCS0 = 2.5 mg/I 48 hours Daphnia magna LC5O = 1.5 mg/l 72 hours Pseudokirchnerieilasuabcpitala SECTION 7 Physical and Chemical Properties

.4ppearance..............................         Colorless to brown liquid Odor ........................................... Odorless to m ild. (Slight.)

Density. ..................................... 1.2 to 1.3 g/cm 3 (25 0C / 771F) Flash Point............................... Closed cup: 100 0C (2121F). Open cup: >1821C (359.60 F) (Cleveland.). Melting/Freezing Point.... <-50 0 C (-58OF) Boiling Point......................... Decomposition temperature: >70°C (158°F) Solubility ................................... Partially soluble in cold water. Partially soluble in hot water. pH (Neat) .................................. 1.5 to 5 [Acidic.j pH (100 ppm in water) ........... Not available. Vapor Pressure....................... 18.9 mm of Hg (@200 C ) o/w PartitionCoefficient ......... Not available. Oxidizing/Reducing Properties. Not available. Viscosit, ................................... Dynam ic: 20 cps Additional pH Information ...... Not available. NOTE: The physical data presented above are typical values and should not be construedas specifications. SECTION 8 Fireand Explosion Information Flammable Limits .................. LFL: Not determined UFL: Not determined Extinguishing Media ............... Water fog or fine spray. Dry chemical fire extinguishers. Carbon dioxide fire extinguishers. Foam. Do not use direct water stream. May spread fire. General purpose synthetic foams (including AFFF type) or protein foams are preferred if available. Alcohol resistant foams (ATC type) may function. Special Firefighting Keep people away. Isolate fire area and deny unnecessary entry. Use water spray Procedures...............to cool fire exposed containers and fire affected zone until fire is out and danger of re-ignition has passed. If product becomes contaminated with water, monitor product for heat generation and/or decomposition. Fight fire from protected location or safe distance. Consider use of unmanned hose holder or monitor nozzles. Immediately withdraw all personnel from area in case of rising sound from venting safety device or discoloration of the container. Move container from fire area, if this is possible, without hazard. Contain fire water run-off, if possible. Fire water run-off, if not contained, may cause environmental damage. Review the "Accidental Release Measures"and the "Ecological Information" sections of this USA BULAB 6042

Last Revision... 112012011 BULAB 6042 Page 4 MSDS. Special Protective Equipment for Firefighters: Wear positive-pressure self-contained breathing apparatus (SCBA) and protective firefighting clothing (includes fire fighting helmet, coat, pants, boots, and gloves). Avoid contact with this material during fire fighting operations. If this is not available, wear full chemical resistant clothing with self-contained breathing apparatus and fight fire from a remote location. For protective equipment in post-fire or non-fire clean-up situations, refer to the relevant sections. Unusual Fire and Expolosion Hazards: This material will not burn until the water has evaporated. Residue can burn. Container may rupture from gas generation in a fire situation. Hazardous Combustion Products: Under fire conditions, some components of this product may decompose. The smoke may contain unidentified toxic and/or irritating compounds. Combustion products may include and are not limited to: oxides of nitrogen and carbon, hydrogen bromide. SECTION 9 Reactivity Information Stabilit ....................................... Stable under recommended storage conditions. Avoid temperatures above 70 °C (158 'F). Exposure to elevated temperatures can cause product to decompose. Generation of gas during decomposition can cause pressure in closed systems. Do not allow to freeze. Incompatibilio.......................... Oxidizers, strong bases, metals such as: Aluminum Hazardous Decomposition Products................................. Decomposition products depend upon temperature, air supply, and the presence of other materials. Decomposition products can include and are not limited to: carbon dioxide, bromine, cyanogen bromide, dibromoacetonitrile. SECTION 10 HandlingPrecautions Personal Protection Eye/Face Protection: Use chemical goggles. Skin Protection: Use protective clothing chemically resistant to this material. Selection of specific items such as faceshield, gloves, boots, apron or full-body suit will depend on the task. Hand protection: Use gloves chemically resistant to this material. Examples of preferred glove barrier materials include: Butyl rubber, Polyethylene, Chlorinated polyethylene, Ethyl vinyl alcohol laminate (EVAL). Examples of acceptable glove barrier materials include: Viton, Neoprene, Polyvinyl chloride (PVC or vinyl), Nitrile/butadiene rubber (nitrile or NBR). NOTICE: The selection of a specific glove for a particular application and duration of use in a workplace should also take into account all relevant workplace factors such as, but not limited to: Other chemicals which may be handled, physical requirements (cut/puncture protection, dexterity, thermal protection), potential body reactions to glove materials, as well as the instructions/specifications provided by the glove supplier. Respiratory Protection: Respiratory protection should be worn when there is a potential to exceed the exposure limit requirements or guidelines. If there are no applicable exposure limit requirements or guidelines, wear respiratory protection when adverse effects, such as respiratory irritation or discomfort have been experienced, or where indicated by your risk assessment process. In misty atmospheres, use an approved particulate respirator. The following should be effective types of air-purifying respirators: Organic vapor cartridge with a particulate pre-filter. Ingestion: Avoid ingestion of even very small amounts; do not consume or store food or tobacco in the work area; wash hands and face before smoking or eating. Ventilation: Use local exhaust ventillation, or other engineering controls to maintain airborne levels below exposure limit requirements or guidelines, if there are no applicable exposure limit requirements or guidelines, general ventialation should be sufficient for most operations. Local exhaust ventilation may be USA BULAB 6042

Last Revision... 112012011 BULAB 6042 Page 5 necessary for some operations. Handling General Handling: Do not get in eyes, on skin, on clothing. Do not swallow. Avoid breathing vapor. Keep container tightly closed. Use with adequate ventilation. Wash thoroughly after handling. Spills of these organic materials on hot fibrous insulations may lead to lowering of the autoignition temperatures possibly resulting in spontaneous combustion. Storage: Do not store in Aluminum. Shelf life: use within 12 months. Storage temperature <= 350C SECTION iI Satisfactori, Materialsof Construction Polypropylene Teflon. Polyethylene Kynar resin Hastelloy C276 Titanium Heresite P-403 Amercoat 23 NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user. SECTION 12 Spill, Leak, and DisposalProcedures SPILL AND LEAK RESPONSE GUIDELINES: Accidental Release Measures Steps to be taken if material is released or spilled: Contain spilled material, if possible. Attempt to neutralize by adding materials such as sodium bisulphite, sodium metabisulfite. Neutralize with approximately 17.2 grams sodium bisulfite (NaHSO3) or 15.7 grams sodium metabisulfite (NaZS2Os) for every 100 grams biocidal product. Absorb with materials such as: dirt, sand, vermiculite, Zorb-all, Hazorb. Collect in suitable and properly labeled containers. Personal Precautions: Keep upwind of spill. Evacuate area. Use appropriate safety equipment. For additional information, refer to section 10 (Hanlding Precautions). Environmental Precautions: Prevent from entering into soil, ditches, sewers, waterways and/or groundwater. Disposal Considerations Do not dump into any sewers, on the ground, or into any body of water. All disposal practices must be in compliance with all Federal, State/Provincial, and local laws and regulations. Regulations may vary in different locations. Waste characterizations and compliance with applicable laws are the responsibility soley of the waste generator. As your supplier, we have no control over the management practices or manufacturing processes of parties handling or using this material. The information presented here pertains only to the product as shipped in its intended condition as described in MSDS section: Hazardous components (section 2). For unused and uncontaminated product, the preferred option is to contact your State Pesticide or Environmental Control Agency, or the Hazardous Waste representative at the nearest EPA Regional Office for guidance. The preferred option in other jurisdictions is to contact the regulatory authority for this rpdouct for guidance. As a service to its customers, Buckman can provide names of information resources to help identify waste management companies and other facilities which recycle, reprocess, or manage chemicals or plastics, and that manage used drums. BULAB 6042 USA USA BULAB 6042

Last Revision... 1/20/2011 BULAB 6042 Page 6 SECTION 13 TransportationandShippingInformation DOT Shipping Information: UN3265, CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S., (2,2-Dibromo-3-nitrilopropionamide), Class 8, P.G. III, (ERG Guide 153 ) -------- NOT AVAILABLE FOR AIR SHIPMENT IMO/IMDG Shipping Information: UN3265, CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S., (2,2-Dibromo-3-nitrilopropionamide), Class 8, P.G. III, ( EmS No. F-A, S-B, ERG Guide 153, HazMat Code 4931466) 14 TA Shipping Information: NOT AVAILABLE FOR AIR SHIPMENT. Contact S/H/E Department. DOT "RQ": NONE Unless otherwise stated, the shippinginformation providedabove applies only to non-bulk containersof this product. Propershipping name and generalshipping information may vary depending on packagingand mode of shipment. All products shippedfrom Buckman locations have been properlypackaged and labeled accordingto appropriatehazardous materialsshipping regulations. If any alteration ofpackaging,product, or mode of transportationisfurther intended, different shipping information, including but not limited to proper shipping name, RQ designation, and labeling may apply. Forfurther information pertainingto the shipping requirementsfor this product,contact Buckman's TransportationDepartmentor DOT Coordinator. SECTION 14 Regulatorv Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SARA (SuperfundAmendments and ReauthorizationAct) SARA 302 Extremely HazardousSubstances List... No components of this product are listed. SARA 312 HazardCategory... Immediate (Acute) Health Hazard, Delayed (Chronic) Health Hazard SARA 313 Toxic Chemicals List... On October 27, 1995, the EPA published an administrative stay of the EPCRA section 313 reporting requirements of this chemical. Therefore, no Toxic Release Inventory reports are required for 2,2-Dibromo-3-nitrilopropionamide until the stay is removed. CERCLA (ComprehensiveEnvironmentalResponse, CompensationandLiability Act) No components of this product are present above the de minimus levels. RCRA (Resource Conservation and Recovery Act) Listed Hazardous Waste No components of this product are listed. CWA (Clean Water Act) Listed Substances No components of this product are listed. FDA (Food andDru' Administration) This product is allowed under the following FDA (21 CFR) sections :173.320 (Limitation: Not more than 10.0 and not less than 2.0 ppm. By product molasses, bagasse, and pulp containing residues of 2,2-dibromo-3-nitrilopropionamide are not authorized for use in animal feed.); 175.105 (Limitation: For use only as a preservative.); 176.170 (Limitation: For use as a preservative at a level not to exceed 100 ppm in coating formulations and in component slurries and emulsions, used in the production of paper and paperboard and coating for paper and paperboard.); 176.300 (Limitation: For use at a maximum level of 0.5 lb/ton dry weight fiber.). Bundesinstitutffir Risikobewertung (BfR) (The FederalInstitute for Risk Assessment) XXXVI TSCA (Toxic Substances ControlAct) Applicability USA BULAB 6042

Last Revision... 1/2012011 BULAB 6042 Page 7 All components are listed on the TSCA Inventory. Registered pesticides are exempt from the requirements of TSCA. FIFRA (FederalInsecticide, Fungicide,and Rodenticide Act) This product is a registered pesticide. EPA Reg. No. 1448-72 HMIS/NPCA Rating Health 3 Flammability 1 Reactivity 1 NFPA Ratings ............. Health 3 Flammability 1 Reactivity 1 State Regulations Various State Right To Know Acts ... Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. The information on this Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which is not described in the Data Sheet is the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hazard Communication regulations. While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all known OSHA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to its chemical description and is reasonably fit for the purpose referred to in the directions for use when used in accordance with the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of an)y kind, express or implied, concerning the product, including NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be implied by law and no agent of seller is authorized to alter this warranty in any way except in writing with a specific reference to this warranty. The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered in any court having jurisdiction thereof.

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Low Volume Waste Chemical Additives (internal to Once Through Cooling)

a. Manufacturers Product Identification Number: Bulab 8806

b. Product Use: Scale inhibitor used for cleaning RO membranes

c. Chemical Composition: See attached data sheets

d. Classification (non-persistent, persistent or bioaccumulative): Not Available

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Continuous low concentration feed; as needed

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not Detectable*

i. Outfall: 004 (internal)

• Residual product would not be reasonably expected to be detected in the wastestream since it discharges through retention pond where it commingles with other biocide-demanding wastestreams prior to discharge through an internal ouffall.

BUCKMAN LABORATORIES, INC. Material Safety Data Sheet Buckman BULAB 8806 Revision date: 6/10/2010 Buckmnan Laboratories, Inc. 24 Hour Emergency Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626 SECTION I OSHA HAZARD CLASSIFICATIONS Irritating to eyes and skin. Contains a human carcinogen. SECTON 2HAZARDOUS COMPONENTS ChemicalName CAS Number  % by Weight TL V Organic phosphonates Not available. Potassium hydroxide 1310-58-3 <20 ACGIH (United States). CEIL: 2 mg/m3 Formaldehyde 50-00-0 <0.2 ACGIH (United States). CEIL: 0.37 mg/m3 CEIL: 0.3 ppm OSHA (United States). TWA: 0.75 ppm STEL: 2 ppm While some substances are claimed as trade secret in accordancewith the provision of OSHA 29 CFR 1910.1200(i), all known hazards are clearly communicated within this document. SECTON 3FIRSTAID INFORMA TION Eve Flush immediately with copious amounts of tap water or normal saline (minimum of 15 Exposure: minutes). Take exposed individual to a health care professional, preferably an ophthalmologist, for further evaluation. Skin Wash exposed area with plenty of water. Repeat washing. Remove contaminated clothing and Exposure: wash thoroughly before reuse. If irritation persists consult a health care professional. Inhalation: If exposure by inhalation is suspected, immediately move exposed individual to fresh air. If individual experiences nausea, headache, dizziness, has difficulty in breathing or is cyanotic, seek a health care professional immediately. Ingeestion: DO NOT INDUCE VOMITING. Rinse with copious amounts of water or milk, first. Irrigate the esophagus and dilute stomach contents by slowly giving one (1) to two (2) glasses of water or milk. Avoid giving alcohol or alcohol related products. In cases where the individual is semi-comatose, comatose or convulsing, DO NOT GIVE FLUIDS BY MOUTH. In case of intentional ingestion of the product seek medical assistance immediately; take individual to nearest medical facility. USA BULAB 8806

Last Revision... 611012010 BULAB 8806 Page 2 SECTION 4 PRIMAR Y ROUTES OF EXPOSURE

1. Effects from Acute Exposure:

QE_ Hazardous in case of eye contact (irritant). Exposure: Skin. Sensitizing properties of the product: Not available. Exposure: Hazardous in case of skin contact (irritant). Skin inflammation is characterized by itching, scaling, reddening or, occasionally, blistering. Inhalation: May be harmful if inhaled. Do not breathe spray mists of the undiluted product. Effects will depend upon solution strength and length of time of exposure. Ingestion: Ingestion is not expected to be a primary route of exposure.

2. Effects from ChronicExposure:

The effects from chronic exposure to this product have not been fully evaluated. SECTION 5 Toxicological Information Acute Effects: Not tested. Not expected to be toxic based on components. Irritant/ Sensitization Effects: Hazardous in case of eye contact (irritant). Sensitizing properties of the product: Not available. Hazardous in case of skin contact (irritant). Skin inflammation is characterized by itching, scaling, reddening or, occasionally, blistering. May be harmful if inhaled. Do not breathe spray mists of the undiluted product. Effects will depend upon solution strength and length of time of exposure. CarcinoeenicPotential: Formaldehyde: This product contains formaldehyde which is listed as an OSHA carcinogen, has an IARC rating of I (The agent is carcinogenic to humans. The exposure circumstance entails exposures that are carcinogenic to humans.), and NTP rating of 2 (Substances or groups of substances, and medical treatments which may reasonably be anticipated to be carcinogens.). Tareet Organs Effects: May cause damage to the following organs: upper respiratory tract, skin, eyes. Other Health Effects: None known. SECTION 6 Environmental Toxicological Information No information available. SECTION 7 Physicaland Chemical Properties Appearance.............................. Hazy, amber liquid Odor ........................................... Pungent. Densit ....................................... 1.26 to 1.3 (201C / 681F) Flash Point ............................... Closed cup: >1000 C (212 0 F). (Pensky-Martens.) Melting/Freezing Point .... Not available. USA BULAB 8806

Last Revision... 6/1012 0 10 BULAB 8806 Page 3 Boiling Point............................ Not available. Solubili" ................................... Soluble in cold water. Soluble in hot water. pH (Neat) ................. 1 0 [Basic.] pH (100 ppm in water) ........... Not available. Vapor Pressure....................... Not available. o/w PartitionCoefficient ......... Not available. Oxidizing/Reducing Properties. Not available. Viscosi.. ................................... Not available.

.4dditionalpH Information ......                   Not available.

NOTE: The pihysicaldata presented above are typical values and should not be construed as specifications. SECTION 8 Fire and Explosion Information FlammableLimits .................. Not available. Extinguishing Media ............... Water fog, carbon dioxide, foam, dry chemical. Special Firefighting Fire-fighters should wear positive pressure self-contained breathing apparatus Procedures........................... (SCBA) and full turnout gear. 11SECTION 9 Reactivity Information Stability ...................................... Stable under normal conditions of use and storage. Keep from freezing. Incompatibilit,. ......................... Strong acids. Hazardous Decomposition Products .................................... carbon oxides (CO, C02) SECTION 10 Handling Precautions Rubber gloves, protective eyewear, body protective clothing and shoes are recommended. Eye-wash fountains in the work place are recommended. Provide dilution ventilation to control vapor and\or mist level. When misting may occur in the work area, a NIOSHIMSHA approved respirator may be required. Use a respirator approved for the material and level of exposure. A comprehensive respiratory protection program is needed when respirators must be used. The handling precautions for this product are based on the characteristics of the neat product unless otherwise specified. NSF Certification: This product is certified by NSF International to NSF/ANSI Standard 60 as a reverse osmosis antiscalant for use in potable water applications up to a maximum use rate of 50 mg/l. SECTION II Satisfactory,Materials of Construction 304 Stainless steel 316 Stainless steel CI010 Mild Steel C1020 Mild Steel Polyethylene - crosslink Polyethylene - high density Polyethylene - low density Polypropylene PVC - flexible PVC - rigid LUSA BULAB 8806

Last Revision... 6,11012010 BULAB 8806 Page 4 Rehau Tubing EPDM rubber Neoprene Butyl rubber Silicone rubber Viton Butyl rubber ABS (Plastic) 6/6 Nylon Tygon Hypalon EPT Rubber Tygon F-4040 Tygon tubing R3603 Polyisoprene Rubber Polyurethane Tubing Pharmed Tubing FRP Norprene Dow Sillastic Tube Polycarbonate Polystyrene NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user. S2 Sill, Leak, and DisposalProcedures SPILL AND LEAK RESPONSE GUIDELINES: Important: Before responding to a spill or leak of this product, review each section of this MSDS. Follow the recommendations given in the Handling Precautions sections. Check the Fire and Explosion Data section to determine if the use of non-sparking tools is merited. Insure that spilled or leaked product does not come into contact with materials listed as incompatible. If irritating fumes are present, consider evacuation of affected areas. Emergency Response Assistance: Emergency technical assistance is available at any time from Buckman Laboratories, Inc., by calling (901) 767-2722. Collect calls are accepted. Initially minimize area affected by the spill or leak. Block any potential routes to water systems (e.g., sewers, streams, lakes, etc.). Based on the product's toxicological and chemical properties, and on the size and location of the spill or leak, assess the impact on contaminated environments (e.g. water systems, ground, air equipment, etc.). There are no methods available to completely eliminate any toxicity this product may have on aquatic environments. Minimize adverse effects on these environments. Buckman Laboratories, Inc. can be contacted for technical assistance. Determine if federal, state, and/or local release notification is required (see Regulatory Information section of this MSDS). Recover as much of the pure product as possible into appropriate containers. Later, determine if this recovered product can be used for its intended purpose. Address clean-up of contaminated environments. Spill or leak residuals may have to be collected and disposed of. Clay, soil, or commercially available absorbents may be used to recover any material that can not readily be recovered as pure product. Flushing residual material to an industrial sewer, if present at the site of a spill or leak incident, may be acceptable if authorized approval is obtained. If product and/or spill/leak residuals are flushed to an industrial sewer, insure that they do not come into contact with incompatible materials. DISPOSAL GUIDELINES Note: Follow federal, state, and local regulations governing the disposal of waste materials. Neat Product: Contact your Buckman representative. Contaminated Materials: Determine if waste containing this product can be handled by available industrial effluent system or UiSA BULAB 8806

Last Revision... 67 0/2 0 / 0 BULAB 8806 Page 5 other on-site waste management unit. If off-site management is required, contact a company experienced in industrial waste management. Container Disposal: If assistance is needed, contact your Buckman sales representative. SECTION 13 Transportationand Shipping Information DOT Shipping Information: NON-BULK: UN3267, CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S., (Organic phosphonates, Potassium hydroxide), Class 8, P.G. III, ( ERG Guide 153 ) ******** BULK: NOT REGULATED per 49 CFR 173.154(d) when packaged in non-steel, non-aluminum packagings. IMO/1'MIDG Shipping Information: UN3267, CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S., (Organic phosphonates, Potassium hydroxide), Class 8, P.G. III, (EmS No. F-A, S-B, ERG Guide 153, HazMat Code 4935263) IA TA Shipping Information: UN3267, CORROSIVE LIQUID, BASIC, ORGANIC, N.O.S., (Organic phosphonates, Potassium hydroxide), Class 8, P.G. HI, (ERG Guide 153, ERG Code 8L) When shipped in a single package containing MORE THAN 468 GAL (5,000 LBS), this product contains a reportable quantity of POTASSIUM HYDROXIDE and the shipping description should be preceded or followed by the letters "RQ". Unless otherwise stated, the shippinginformation providedabove applies only to non-bulk containersof this product Propershipping name and general shipping information may vary depending on packagingand mode of shipment All products shippedfrom Buckman locations have been properlyj packaged and labeledaccording to appropriatehazardous materialsshipping regulations. If any alterationofpackaging,product,or mode oftransportationisfurther intended, different shipping information, including but not limited to propershipping name, RQ designation, and labeling may apply. Forfurther informationpertainingto the shipping requirementsfor this product, contact Buckman's TransportationDepartment or DOT Coordinator. I SECTION 14 Regulator),Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SARA (SuperfundAmendments andReauthorizationAct) SARA 302 Extremely HazardousSubstances List... No components of this product are listed. SARA 312 HazardCategory... Immediate (Acute) Health Hazard SARA 313 Toxic Chemicals List... This product contains the following toxic chemical(s) subject to the reporting requirements of section 313 of Title IH of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR part 372 : Formaldehyde CERCLA (ComprehensiveEnvironmentalResponse, Compensation and Liability Act) Potassium hydroxide ..... RQ = 1000 lbs. Formaldehyde ..... RQ = 100 lbs. RCRA (ResourceConversationand Recovery Act) Listed Hazardous Waste Formaldehyde CWA (Clean Water Act) Listed Substances Potassium hydroxide ; Formaldehyde USA BULAB 8806

Last Revision... 6110X2010 BULAB 8806 Page 6 FDA (Food and DrugAdministration) This product is not allowed for food contact uses. NationalSanitation Foundation(NSF) This product is listed by the NSF under NSF/ANSI Standard 60 for use in potable water applications with the following maximum allowable use rates: 50 mg/l. TSCA (Toxic Substances Control Act) Applicability All components are listed on the TSCA Inventory. FIFRA (FederalInsecticide, Funuicide,and Rodenticide Act) This product is not a registered pesticide. HMIS/NPCA Rating ... Health I Flammability 1 Reactivity 0 NFPA Ratings ............. Health 1 Famlmabilitv I Reactivity 0 State Regulations Various State Right To Know Acts... Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. The information on this Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which is not described in the Data Sheet is the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hlazard Communication regulations. While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all known OStlA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to its chemical description and is reasonably fit for the purpose referred to in the directions for use when used in accordance with the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of any kind, express or implied, concerning the product, including NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be implied by law and no agent of seller is authorized to alter this warranty in any way except in writing with a specific reference to this warranty. The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered in any court having jurisdiction thereof.

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Safe Shutdown Impoundment /Once-Through Cooling Chemical Additives

a. Manufacturers Product Identification Number: Bulab 6002/GE Betz Spectrus CT-1300

b. Product Use: Biocide/Clamicide

c. Chemical Composition: See attached data sheets

d. Classification (non-persistent, persistent or bioaccumulative): Not Available

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Intermittent; as needed

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not Available*

i. Outfall: 002*

• System discharges to the Safe Shutdown Impoundment where the wastewaters commingle with additional biocide-demanding waters prior to any potential discharge. Therefore, residual concentrations would not reasonably be expected detected in the wastestream in the unlikely event of a discharge.

BUCKMAN LABORATORIES, INC. Material Safety Data Sheet Buckman BULAB 6002 Revision date: 5/9/2011 Buckman Laboratories, Inc. 24 Hour Emergency Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626 SECTION I OS1A4 HAZARD CLASSIFICATIONS Irritating to eyes. TSETI1ON 2 HAZARDOUS COMPONENTS Chemical Name CAS Number  % by Weight TL.V Polyloxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene 31512-74-0 60 Not available. dichloridel While some substances are claimed as trade secret in accordancewith the provision of OSHA 29 CFR 1910.1200(i), all known hazardsare clearly communicated within this document. SECTION 3 FIRSTAID INFORMATION EFlush immediately with copious amounts of tap water or normal saline (minimum of 15 Exposure: minutes). Take exposed individual to a health care professional, preferably an ophthalmologist, for further evaluation. Skin Wash exposed area with plenty of water. Repeat washing. Remove contaminated clothing and Exposure: wash thoroughly before reuse. If irritation persists consult a health care professional. Inhalation: If exposure by inhalation is suspected, immediately move exposed individual to fresh air. If individual experiences nausea, headache, dizziness, has difficulty in breathing or is cyanotic, seek a health care professional immediately. ingestion: DO NOT INDUCE VOMITING. Rinse with copious amounts of water or milk, first. Irrigate the esophagus and dilute stomach contents by slowly giving one (1) to two (2) glasses of water or milk. Avoid giving alcohol or alcohol related products. In cases where the individual is semi-comatose, comatose or convulsing, DO NOT GIVE FLUIDS BY MOUTH. In case of intentional ingestion of the product seek medical assistance immediately; take individual to nearest medical facility. USA BULAB 6002

Last Revision... 51/912011 BULAB 6002 Page 2 SECTION 4 PRIMARYROUTES OF EXPOSURE I. Effects from Acute Exposure: Eve Slightly hazardous in case of eye contact (irritant). Exposure: Skin Slightly hazardous in case of skin contact (irritant). Non-sensitizer to skin. Skin Exposure: inflammation is characterized by itching, scaling, reddening or, occasionally, blistering. Inhalation: Slightly hazardous in case of inhalation. Effects will depend on concentration and length of time of exposure. Ingestion: Ingestion is not expected to be a primary route of exposure.

2. Effects from Chronic Exposure:

The effects from chronic exposure to this product have not been fully evaluated. SECTION 5 Toxicological Information A cute Effects: Acute Oral (LD50) = 1951 mg/kg Male rat Acute Oral (LD50) = 2587 mg/kg Female rat Acute Dermal (LD50) = >2000 mg/kg Rabbit Acute Inhalation (LC50) = 2.9 mg/I ( 4 hours) Rat Irritant/ Sensitization Effects: Slightly hazardous in case of eye contact (irritant). Slightly hazardous in case of skin contact (irritant). Non-sensitizer to skin. Skin inflammation is characterized by itching, scaling, reddening or, occasionally, blistering. Slightly hazardous in case of inhalation. Effects will depend on concentration and length of time of exposure. CarcinogenicPotential: A two year rat carcinogenicity study showed a slight increase in c-cell adenomas in female rats. Studies with male rats and male and female mice did not show any evidence of carcinogenic response. This product is not considered a carcinogen. Target Organs Effects: May cause damage to the following organs: upper respiratory tract, skin, eyes. Other Health Effects: None known. SECTION 6 Environmental Toxicological Information LC50 = 0.37 mg/I 48 hours Invertebrate LC50 = 0.26 mg/I 96 hours Fathead minnow LC50 = 0.21 mg/I 96 hours Bluegill sunfish LC50 = 0.047 mg/I 96 hours Rainbow trout LC50 = >600 mg/I 96 hours Sheepshead minnow LC50 = 13 mg/I 96 hours Mysid shrimp BULAB 6002 USA BULAB 6002

Last Revision... 51912011 BULAB 6002 Page 3 SSECTION 7 Phjsicaland Chemical Properties Appearance.............................. Clear, pale yellow liquid Odor ........................................... M ild. Density...................................... 1.15 g/cm 3 Flash Point ............................... Closed cup: >100 0 C (212 0 F). (Tagliabue.) Melting/Freezing Point .... <-16 0 C (3.20F) Boiling Point............................ >100oC (212 0 F) Solubilitj. .................................. Easily soluble in cold water. Easily soluble in hot water. pH (Neat) .................................. 7 [Neutral.] pH (100 ppm in water)........... 6-7 Vapor Pressure ....................... Not available. oA, Partition Coefficient ......... Not available. Oxidizing/Reducing Properties. Not available. Viscosity. .................................. Kinetic: 125 cS AdditionalpH Information ...... pH (neat) = 6.0 - 8.0 NOTE: The physical datapresented above are typical values and should not be construed as specifications. SECTION 8 Fire and Explosion Information Flammable Limits .................. Not available. Extinguishing Media ............... Water fog, carbon dioxide, foam, dry chemical. Special Firefighting Fire-fighters should wear positive pressure self-contained breathing apparatus Procedures........................... (SCBA) and full turnout gear. SECTION 9 Reactivity Information Stability ...................................... Stable under normal conditions of use and storage. Incompatibility .......................... Anionic polymers HazardousDecomposition Products .................................... Carbon monoxide may be formed upon burning. SECTION 10 Handling Precautions Eye-wash fountains in the work place are recommended. Rubber gloves, safety glasses or goggles and body protective clothing and shoes are required. The handling precautions for this product are based on the characteristics of the neat product unless otherwise specified. [SECTION I 1Satisfactory Materials of Construction Buna-N rubber Butyl rubber Polypropylene Plexiglas Teflon. PVC - rigid Viton USA BULAB 6002

Last Revision... 519,12011 BULAB 6002 Page 4 Last Revision.. S/9,'20 /1 BULAB 6002 Page 4 EPDM rubber PVC - flexible Fiberglass Neoprene Polyethylene - low density Tygon Tyril 880 Gum rubber Silicone rubber Hypalon Polyethylene - high density Stainless steels 304 and 316 ABS (Plastic) Morton test liner (108 T 44LV) 6/6 Nylon FRP lined mild steel SECTION 12 Spill, Leak, and DisposalProcedures SPILL AND LEAK RESPONSE GUIDELINES: Important: Before responding to a spill or leak of this product, review each section of this MSDS. Follow the recommendations given in the Handling Precautions sections. Check the Fire and Explosion Data section to determine if the use of non-sparking tools is merited. Insure that spilled or leaked product does not come into contact with materials listed as incompatible. If irritating fumes are present, consider evacuation of enclosed areas. Emergency Response Assistance: Emergency technical assistance is available at any time from Buckman Laboratories, Inc., by calling (901) 767-2722. Initially minimize area affected by the spill or leak. Block any potential routes to water systems (e.g., sewers, streams, lakes, etc.). Based on the product's toxicological and chemical properties, and on the size and location of the spill or leak, assess the impact on contaminated environments (e.g. water systems, ground, air equipment, etc.). There are no methods available to completely eliminate any toxicity this product may have on aquatic environments. Minimize adverse effects on these environments. Buckman Laboratories, Inc. can be contacted for technical assistance. Determine if federal, state, and/or local release notification is required (see Regulatory Classifications section of this MSDS). Recover as much of the pure product as possible into appropriate containers. Later, determine if this recovered product can be used for its intended purpose. Address clean-up of contaminated environments. Spill or leak residuals may have to be collected and disposed of. Clay, soil, or commercially available absorbents may be used to recover any material that can not readily be recovered as pure product. Flushing residual material to an industrial sewer, if present at the site of a spill or leak incident, may be acceptable if authorized approval is obtained. If product and/or spill/leak residuals are flushed to an industrial sewer, insure that they do not come into contact with incompatible materials. Contact the person(s) responsible for the operation of your facility's industrial sewer system prior to intentionally flushing or pumping spills or leaks of this product to the industrial sewer. DISPOSAL GUIDELINES Note: Follow federal, state, and local regulations governing the disposal of waste materials. Neat Product: Contact your Buckman representative or Buckman Laboratories, Inc., at (901) 278-0330. Contaminated Materials: Determine if waste containing this product can be handled by available industrial effluent system or other on-site waste management unit. If off-site management is required, contact a company experienced in industrial waste management. This product is not specifically listed in 40 CFR 261 as a Resource Conservation and Recovery Act (RCRA) hazardous waste. However, spill or leak residuals may meet the criteria of a characteristic hazardous waste under this Act. Check the characteristics of the material to be disposed of and/or the physical and reactivity data given in this MSDS for the neat product. Container Disposal: Empty containers, as defined by appropriate sections of the RCRA, are not RCRA hazardous wastes. However, insure proper management of any residuals remaining in container. USA BULAB 6002

Last Revision... 5/9/2011 BULAB 6002 Page 5 SECTION 13 Transportationand Shipping Information DOT Shipping Information: DOT (Ground shipments only): Not Regulated. ------- IATA (Air shipments): UN3082, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S., (Cationic polymer), Class 9, P.G. Ill, MARINE POLLUTANT, (ERG Guide 171, ERG Code 9L) IMO/IMDG Shipping Information: UN3082, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S., (Cationic polymer) Class 9, P.G. IIl, MARINE POLLUTANT, ( EmS No. F-A, S-F, ERG Guide 171, HazMat Code 4960131) L4 TA Shipping Information: UN3082, ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S., (Cationic polymer), Class 9, P.G. IIl, MARINE POLLUTANT, (ERG Guide 171, ERG Code 9L) DOT "RQ": NONE Unless otherwise stated, the shipping information provided above applies only to non-bulk containersof this product. Propershipping name and generalshipping information may vary depending on packaging and mode of shipment All products shippedfrom Buckman locations have been properlypackaged and labeled accordingto appropriatehazardous materialsshipping regulations. If any alterationofpackaging,product, or mode of transportationis further intended, different shipping information, including but not limited to propershipping name, RQ designation, and labeling may apply. Forfurther informationpertainingto the shipping requirementsfor this product, contactBuckman's TransportationDepartmentor DOT Coordinator. SECTION 14 Regulatory Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SARA (SuperfundAmnendments and ReauthorizationAct) SARA 302 Extremely HazardousSubstances List... No components of this product are listed. SARA 312 Hazard Category... Immediate (Acute) Health Hazard SARA 313 Toxic Chemicals List... No components of this product are present above the de minimus levels. CERCLA (ComprehensiveEnvironmentalResponse, Compensationand Liability Act) No components of this product are present above the de minimus levels. RCRA (Resource Conservation and Recovery Act) Listed Hazardous Waste No components of this product are listed. CWA (Clean Water Act) Listed Substances No components of this product are listed. FDA (Food and Dru' Administration) This product is not allowed for food contact uses. NationalSanitationFoundation (NSF) This product is listed by the NSF under NSF/ANSI Standard 60 for use in potable water applications with the following maximum allowable use rates: Concentrations of 2-5 ppm can be used at the initiation of treatment for up to 21 days. Thereafter, the maximum use rate is 0.5 ppm for potable water systems. TSCA (Toxic Substances ControlAct) Applicability BULAB 6002 USA BULAB 6002

Last Revision... 51/,.2011 BULAB 6002 Page 6 All components may not be listed on the TSCA Inventory. Registered pesticides are exempt from the requirements of TSCA. FIFRA (FederalInsecticide,Fungicide, and Rodenticide Act) This product is a registered pesticide. EPA Reg. No. 1448-42 HMIS/NPCA Rating ... Health 1 Flammability I Reactivity 0 NFPA Ratings ............. Health I Flammability I Reactivity 0 State Regulations Various State Right To Know Acts ... Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. The information on this Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which is not described in the Data Sheet is the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hazard Communication regulations. While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all known OSHA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to its chemical description and is reasonably fit for the purpose referred to in the directions for use when used in accordance with the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of any kind, express or implied, concerning the product, including NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS OF THE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be implied by law and no agent of seller is authorized to alter this warranty in any way except in writing with a specific reference to this warranty. The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered in any court having jurisdiction thereof.

GE Water &Process Technologies Issue Date: 09-JUL-2009 Material Safety Data Sheet Supercedes: 04-MAY-2009 SPECTRUS CT1 300 1 Identification Identification of substance or preparation SPECTRUS CT1 300 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: 09-JUL-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.

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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 CT1300 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 eve, 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 ALKYL(C12-C16) DTMETHYLBENZYLAMMONIUM CHLORIDE 40-70 Corrosive (eyes and skin); toxic (by ingestion) 64-17-5 ETHANOL 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 CT1 300 Page 2

victim. Dilute contents of stomach. Induce vrmiting by one of the standard methods. Immediately contact a phy;iKian. 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 ALKYL(C12-Cl6) DIMETHYLBENZYLAMMONIUM CHLORIDE PEL (OSHA): NOT DETERMINED TLV (ACGIH): NOT DETERMINED ETHANOL Substance or Preparation: SPECTRUS CT1 300 Page 3

PEL (OSHA): 1,000 PPM TLV (ACGIH): TWA = 1,000 PPM; A3 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, N100, R95, R99, R100, P95, P99 or P100. SKIN PROTECTION: qauntlet-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 Spec. 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 Colorless To Yellow Physical State Liquid Flash Point P-M(CC) 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: Friction, heat or other sources of ignition may cause a violent reaction releasing heat and toxic fumes. Contact with oxidizers may cause fire or explosion. 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 vayiegatus) 96 Ho-ur Acute Toxicity LC50= 1.47; LCi0= .37 mg/L Benthic Crustacean(Gammerus pseutoLIimnaeus) 96 Hour Acute Toxicity LC50= .07 mg/L Ceriodaphnia 48 Hour Static Renewal Bioassay LC50= .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= 1 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 NAN1E: 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 CT1300 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 24-FEB-2009 10 12-FEB-2009 04-MAY-2009 8 24-FEB-2009 09-JUL-2009 8 04-MAY-2009 Substance or Preparation: SPECTRUS CT1300 Page 7

Luminant Generation Company LP Comanche Peak Nuclear Power Plant TPDES Permit No. WQ0001854000 Safe Shutdown Impoundment /Once-Through Cooling Chemical Additives

a. Manufacturers Product Identification Number: Ammonia

b. Product Use: Biocide (oxidizing)

c. Chemical Composition: NH3

d. Classification (non-persistent, persistent or bioaccumulative): Believed Non-persistent

e. Product or active ingredient half-life: Not Available

f. Frequency of product use: Intermittent use; not exceeding 2 hours/day/unit

g. Product toxicity data: See attached data sheets

h. Concentration of whole product or active ingredient in wastestream: Not available

i. Outfall: 001 and 002*

• System discharges to the Safe Shutdown Impoundment where the wastewaters commingle with additional biocide-demanding waters prior to any potential discharge. Therefore, residual concentrations would not reasonably be expected detected in the wastestream in the unlikely event of a discharge.

BUCKMAN LABORATORIES, INC. Material Safety Data Sheet Buckman OXAMINE 6150 Revision date: 111812013 Buckman Laboratories, Inc. 24 Hour Emereency Phone 1256 North McLean Boulevard (901) 767-2722 Memphis, TN 38108 Phone 1-800-282-5626

  ]SECTION I                            OSHA HAZARD CLASSIFICATIONS Irritating to eyes and skin. May cause respiratory tract irritation.

SECTION 2 HAZARDOUS COMPONENTS ChemicalName CAS Number  % by Weight TL V Ammonia (total) <8 ACGIH (United States). TWA: 18 mg/m3 STEL: 27 mg/mr TWA: 25 ppm STEL: 35 ppm OSHA (United States). TWA: 50 ppm TWA: 35 mg/m3 While some substances are claimed as trade secret in accordancewith the provision of OSHA 29 CFR 1910.1200(i), all known hazards are clearly communicated within this document SECTION 3 FIRSTAID INFORMA TION Eve Flush immediately with copious amounts of tap water or normal saline (minimum of 15 Exposure: minutes). Take exposed individual to a health care professional, preferably an ophthalmologist, for further evaluation. Skin Wash exposed area with plenty of water. Repeat washing. Remove contaminated clothing and Exposure: wash thoroughly before reuse. If irritation persists consult a health care professional. Inhalation: If exposure by inhalation is suspected, immediately move exposed individual to fresh air. If individual experiences nausea, headache, dizziness, has difficulty in breathing or is cyanotic, seek a health care professional immediately. Ingestion: DO NOT INDUCE VOMITING. Rinse with copious amounts of water or milk, first. Irrigate the esophagus and dilute stomach contents by slowly giving one (1) to two (2) glasses of water or milk. Avoid giving alcohol or alcohol related products. In cases where the individual is semi-comatose, comatose or convulsing, DO NOT GIVE FLUIDS BY MOUTH. In case of intentional ingestion of the product seek medical assistance immediately; take individual to nearest medical facility. USA OXAMINE 6150

Last Revision... 1/18/2013 OXAMINE 6150 Page 2 SECTION 4 PRIMARY ROUTES OFEXPOSURE

1. Effects from Acute Exposure:

Eve Hazardous in case of eye contact (irritant). Exposure: Skin Slightly hazardous in case of skin contact (irritant). Non-sensitizer to skin. Exposure: Inhalation: May be harmful if inhaled. Do not breathe spray mists of the undiluted product. Effects will depend upon solution strength and length of time of exposure. Ingestion: Ingestion is not expected to be a primary route of exposure.

2. Effects from Chronic Exposure:

Long-term exposure may affect the respiratory system and lungs. SECTION 5 Toxicological Information Acute Effects: OCULAR IRRITATION: Minimally irritating. Irritation cleared within 48 hours. DERMAL IRRITATION: Slightly irritating. Irritation cleared within 48 hours. Acute Oral LD5o (Female Rat): >5000 mg/kg Acute Dermal LD.o (Rabbit): >2000 mg/kg Acute Inhalation LCso (Rat): >2.08 mg/L (4-hr, nose-only exposure) Irritant/ Sensitization Effects: Hazardous in case of eye contact (irritant). Slightly hazardous in case of skin contact (irritant). Non-sensitizer to skin. May be harmful if inhaled. Do not breathe spray mists of the undiluted product. Effects will depend upon solution strength and length of time of exposure. Target Oruans Effects: May cause damage to the following organs: upper respiratory tract, skin, eyes. Other Health Effects: None known. SECTION 6 Environmental Toxicological Information LC50 = > 131 mg/I 48 hours Daphniamagna LC50 = >126 mg/I 96 hours Rainbow trout LC50 = > 117 mg/I 96 hours Bluegill sunfish SSECTION 7 Physical and ChemicalProperties Appearance .............................. Clear liquid Odor ........................................... Am moniacal. (Slight.) Densit ...................................... 1.15 g/cm 3 Flash Point ............................... Closed cup: Higher than 93.3°C (2001F). (Pensky-Martens.) Melting/Freezing Point .... -6.7-C (19.9-F) Boiling Point ............................ 11 C (231.8°F) Solubilit ................................... USA OXAMINE 6150

Last Revision... 1118/2013 OXAMINE 6150 Page 3 Soluble in cold water. Soluble in hot water. pH (Neat) .................................. 9.1 to 9.3 [Basic.] pH (100 ppm in water) ........... Not available. Vapor Pressure....................... Not available. o/w PartitionCoefficient ......... Not available. Oxidizing/Reducing Properties. Not available. Viscosity .................................. Not available. 4 dditionalpH Information ...... Not available. NOTE: The physical datapresented above are typical values and should not be construed as specifications. SECTION 8 Fire and Explosion Information Flammable Limits .................. Not available. Extinguishing Media ............... Water fog, carbon dioxide, foam, dry chemical. Special Firefighting Fire-fighters should wear positive pressure self-contained breathing apparatus Procedures........................... (SCBA) and full turnout gear. SECTION 9 Reactiviýy Information Stability ...................................... Stable under normal conditions of use and storage. Incompatibilit ........................... strong bases, strong oxidizers, copper, brass, bronze Contact with chlorine may generate chloramine gas, a primary skin irritant and sensitizer. Hazardous Decomposition Products.................................... Ammonia; amines; oxides of sulfur, nitrogen,carbon. SECTION 10 HandlingPrecautions Provide exhaust ventilation or other engineering controls to keep the airborne concentrations below established levels or to control vapor and/or mist level. When established limits are exceeded or misting may occur in the work area, a NIOSHIMSHA approved respirator may be required. Use a respirator approved for the material and level of exposure. A comprehensive respiratory protection program is needed when respirators must be used. Use chemical resistant gloves, indirect ventilation goggles, body-protective clothing, and chemical resistant safety shoes. Emergency showers and eye wash stations should be available. Educate and train employees in the safe use and handling of this product. The handling precautions for this product are based on the characteristics of the neat product unless otherwise specified. SECTION I Satisfactory Materialsof Construction 304 Stainless steel 316 Stainless steel Aluminum 5052 H34 Polyethylene - crosslink Polyethylene - high density Polyethylene - low density PVC - flexible PVC - rigid Polypropylene Rehau Tubing USA OXAMINE 6150

Last Revision... 1/1812013 OXAMINE 6150 Page 4 EPDM rubber Neoprene Buna-N rubber Silicone rubber Viton Butyl rubber ABS (Plastic) 6/6 Nylon Teflon EPT Rubber Hypalon Rubber Tygon F-4040 Tygon tubing R3603 Polyisoprene Rubber Polyurethane Tubing Pharmed Tubing FRP Norprene Tubing Dow Sillastic Tube Polystyrene NOTE: With respect to all other materials not listed above, user should be aware that use of such materials with this product may be hazardous and result in damages to such materials and other property and personal injuries. No data concerning such materials not listed above should be implied by the user. SECTION 12 Spill, Leak, and Disposal Procedures SPILL AND LEAK RESPONSE GUIDELINES: Important: Before responding to a spill or leak of this product, review each section of this MSDS. Follow the recommendations given in the Handling Precautions sections. Check the Fire and Explosion Data section to determine if the use of non-sparking tools is merited. Insure that spilled or leaked product does not come into contact with materials listed as incompatible. If irritating fumes are present, consider evacuation of enclosed areas. Emergency Response Assistance: Emergency technical assistance is available at any time from Buckman Laboratories, Inc., by calling (901) 767-2722. Initially minimize area affected by the spill or leak. Block any potential routes to water systems (e.g., sewers, streams, lakes, etc.). Based on the product's toxicological and chemical properties, and on the size and location of the spill or leak, assess the impact on contaminated environments (e.g. water systems, ground, air equipment, etc.). There are no methods available to completely eliminate any toxicity this product may have on aquatic environments. Minimize adverse effects on these environments. Buckman Laboratories, Inc. can be contacted for technical assistance. Determine if federal, state, and/or local release notification is required (see Regulatory Classifications section of this MSDS). Recover as much of the pure product as possible into appropriate containers. Later, determine if this recovered product can be used for its intended purpose. Address clean-up of contaminated environments. Spill or leak residuals may have to be collected and disposed of. Clay, soil, or commercially available absorbents may be used to recover any material that can not readily be recovered as pure product. Flushing residual material to an industrial sewer, if present at the site of a spill or leak incident, may be acceptable if authorized approval is obtained. If product and/or spill/leak residuals are flushed to an industrial sewer, insure that they do not come into contact with incompatible materials. Contact the person(s) responsible for the operation of your facility's industrial sewer system prior to intentionally flushing or pumping spills or leaks of this product to the industrial sewer. DISPOSAL GUIDELINES Note: Follow federal, state, and local regulations governing the disposal of waste materials. Neat Product: Contact your Buckman representative or Buckman Laboratories, Inc., at (901) 278-0330. Contaminated Materials: Determine if waste containing this product can be handled by available industrial effluent system or other on-site waste management unit. If off-site management is required, contact a company experienced in industrial waste JS.4 OXAMINE 6150

Last Revision... 1118,12013 OXAMINE 6150 Page 5 management. This product is not specifically listed in 40 CFR 261 as a Resource Conservation and Recovery Act (RCRA) hazardous waste. However, spill or leak residuals may meet the criteria of a characteristic hazardous waste under this Act. Check the characteristics of the material to be disposed of and/or the physical and reactivity data given in this MSDS for the neat product. Container Disposal: Empty containers, as defined by appropriate sections of the RCRA, are not RCRA hazardous wastes. However, insure proper management of any residuals remaining in container. SECTION 13 Transportationand Shipping Information DOT Shipping Information: UN3266, CORROSIVE LIQUID, BASIC, INORGANIC, N.O.S., (Ammonia solution), Class 8, P.G. III, ( ERG Guide 154 ) IMO/IMDG Shipping Information: UN3266, CORROSIVE LIQUID, BASIC, INORGANIC, N.O.S., (Ammonia solution), Class 8, P.G. IIl, (EmS No. F-A, S-B, ERG Guide 154, HazMat Code 4935258) 1A TA Shipping Information: UN3266, CORROSIVE LIQUID, BASIC, INORGANIC, N.O.S., (Ammonia solution), Class 8, P.G. III, (ERG Guide 154, ERG Code 8L ) DOT "RQ": NONE- (Material does not meet concentration requirements for hazardous substances as defined in 49 CFR 171.8) Unless otherwise stated,the shipping informationprovided above applies only to non-bulk containersof this product Propershipping name andgeneralshipping information may vary depending on packagingand mode of shipment All products shippedfrom Buckman locations have been properlypackaged and labeledaccordingto appropriatehazardousmaterials shippingregulations. If any alteration ofpackaging,product, or mode of transportationisfurther intended, different shipping information, including but not limited to proper shipping name, RQ designation, and labeling may apply. Forfurther informationpertainingto the shippingrequirementsfor this product, contact Buckman's TransportationDepartmentor DOT Coordinator. SECTION 14 Regulatory Information The following Regulations are known to apply to the use and disposal of this product. Additional Federal, State and Local regulations may also be applicable. SARA (Superfund Amendments and ReauthorizationAct) SARA 302 Extremely Hazardous Substances List... No components of this product are present above the de minimus levels. SARA 312 HazardCategory... Immediate (Acute) Health Hazard, Delayed (Chronic) Health Hazard SARA 313 Toxic Chemicals List... Ammonia: This product contains aqueous ammonia from water dissociable ammonium salts. Using more than 325,000 pounds of this product in a calendar year will trigger the SARA 313 reporting threshold. CERCLA (Comprehensive EnvironmentalResponse, CompensationandLiability Act) No components of this product are present above the de minimus levels. RCRA (Resource Conservation and Recovery Act) Listed Hazardous Waste No components of this product are listed. CWA (Clean Water Act) Listed Substances Ammonia (total) FDA (Food andDrug Administration) OXAMINE 6150 US4 US,4 OXAMINE 6150

Last Revision... 111812013 OXAMINE 6150 Page 6 This product is allowed under the following FDA (21 CFR) sections :176.170. Bundesinstitut fiar Risikobewertung (BMR) (The FederalInstitute for Risk Assessment) XXXVI TSCA (Toxic Substances ControlAct) Applicability All components are listed on the TSCA Inventory. Registered pesticides are exempt from the requirements of TSCA. FIFRA (FederalInsecticide, Fungzicide, andRodenticide Act) This product is a registered pesticide. EPA Reg. No. 1448-433 HMIS/NPCA Rating ... Health I Flammability I Reactivity 0 NFPA Ratings ............. Health I Flamnmability 1 Reactivity 0 State Regulations Various State Right To Know Acts ... Non-proprietary hazardous chemicals are listed in Section 2 of this MSDS. Should you require further information on specific proprietary or inert ingredients please contact Buckman Laboratories' Regulatory Affairs Department. The information on this Material Safety Data Sheet reflects the latest information and data that we have on hazards, properties, and handling of this product under the recommended conditions of use. Any use of this product or method of application which is not described in the Data Sheet is the responsibility of the user. This Material Data Safety Sheet was prepared to comply with the OSHA Hazard Communication regulations. While some components are claimed Trade Secret under OSHA Hazard Communication regulations, all known OSHA hazards associated with the Trade Secret component(s), if contained in this product, are fully disclosed. Buckman Laboratories, Inc. warrants that this product conforms to its chemical description and is reasonably fit for the purpose referred to in the directions for use when used in accordance with the directions under normal conditions. Buyer assumes the risk of any use contrary to such directions. Seller makes no other warranty or representation of any kind, express or implied, concerning the product, including NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS OF TIlE GOODS FOR ANY OTHER PARTICULAR PURPOSE. No such warranties shall be implied by law and no agent of seller is authorized to alter this warranty in any way except in writing with a specific reference to this warranty. The exclusive remedy against seller shall be in a claim for damages not to exceed the purchase price of the product, without regard to whether such a claim is based upon breach of warranty or tort. Any controversy or claim arising out or relating to this contract, or breach thereof, shall be settle by arbitration in accordance with the commercial arbitration rules of the American Arbitration Association, and judgement upon the rendered by the Arbitrator(s) may be entered in any court having jurisdiction thereof.}}