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PPL companies 

July 25, 2013 

Ms. Jezebele Alicea-Virella 

EPA-Office ofWaterjOST/EAD 

Mail Code: 4303T 

1200 Pennsylvania Avenue, N.W. 

Washington, D.C. 20460 

Dear Ms. Jezebele Alicea-Virella: 

W.Michacl Winkler 

Manager, Environmental Programs 

LG&E and KU Energy 

LG&E Building 

220 West Main Street 

Louisville, KY 40202 

T (502) 627-2338 

michael. winkler@.lge-ku.com 

Our facilities provided information that is being used to inform EPA's development of the proposed 

revision of the effluent limitations guidelines and standards for the steam electric power generating point 

source (ELG Rule). The facilities listed below either responded to earlier ELG Rule questionnaires to the 

industry or provided information to you through other means, such as site visits or separate information 

requests. The specific facilities in question are as follows: 

Louisville Gas & Electric Co. - Cane Run Station (KY0002062) 

Louisville Gas & Electric Co. - Mill Creek Station (KY0003221) 

Louisville Gas & Electric Co.- Trimble County Station (KY0041971) 

Kentucky Utilities Co. - E.W. Brown Station (KY0002020) 

Kentucky Utilities Co .. - Ghent Station (KY0002038) 

Kentucky Utilities Co. - Green River Station (KY0002011) 

Kentucky Utilities Co. - Tyrone Station (KY0001899) 

We have identified certain record documents which we believe contain information reported by, or 

derived from data or information reported by, one or more of our facilities. EPA has redacted all or 

portions of these documents as "confidential business information" (CBI). 

We are requesting that you provide to us all information related to the facilities listed above (including 

information that EPA has derived from information obtained from our facilities and from all other 

sources, and including facility-specific or facility-derived information in input files to the listed 

documents) contained within the following documents: 
EPA-HQ-OW-2009-0819 Short Description Doc. ID No. (DCN No.)_ 

1959 (DCN SE01825A53) FGD Input Table Current Systems 

1959 (DCN SE01825A54) FGD Input Table Planned Systems 

1959 (DCN SE01825A55) FGD High Flow Analysis 

1959 (DCN SE01825A73) Bottom Ash MDS Conveyance O&M Costs 

1959 (DCN SE01825A74) Bottom Ash Intermediate Storage O&M Costs 

1959 (DCN SE01825A75) Bottom Ash Wet Sluicing O&M Costs 

1959 (DCN SE01825A76) Bottom Ash Remote MDS Capital Costs 

1959 (DCN SE01825A77) Bottom Ash Wet Sluicing O&M Costs 

1959 (DCN SE01825A78) Bottom Ash Remote MDS Capital Costs 

1977 (SE02900) CBI Steam Electric Pollutant Loading Model for FGD Wastewater 

1984 (SE02899) CBI Steam Electric Pollutant Loadings Model for Ash Transport 

Water 

1986 (SE01756) CBI Future Profile FGD Loads 

2104 (SE02897) CBI Steam Electric Cost Model (FGD and Ash Transport Water) 

2105 (SE02898} CBI Steam Electric Cost Model (FGD and Leachate) 

2121 (SE03804) CBI Data Dictionary for the FGD and Ash Cost Model 

2157 (SE02988) CBI Loads Calculation Database for Options 1, 2, 3, 4, and 5 

2159 (SE03508) CBI Loads Calculation Database Future Profile- IPM Only 

2191 (SE03879) CBI Bottom Ash Management Determination Calculations 

2195 (SE03507) Loads Calculation Database- Questionnaire and IPM 

2197 (SE03552) CBI EA Report Calculations Database 

2201 (SE03895) CBI Loads Calculation Database for Options 3a, 3b and 4a 

2210 (SE02129) CBI Memorandum to the Steam Electric Rulemaking Record: New 

Source Performance Standards Costing Memorandum and 

Attachment 

2252,2252.1 (SE01957, CBI Incremental Costs and Pollutant Removals for Proposed ELGs 

SE1957A1) Report and Attachment 

2256 (SE01957) CBI Incremental Costs and Pollutant Removals 

Please include all information from these documents that relates to our facilities. For example, our 

facilities supplied information about existing control technologies. Through this request, we are 

requesting not only the control technologies information supplied by our facilities, but also control 

technologies information about our facilities derived from other sources, as well as all EPA-developed 

information relating to our control technologies, including EPA's assessments of future technology 

choices for our facilities based on the various rule options. 

For each document, as appropriate, please also include: (1) a legend which explains each column heading 

and each abbreviation used throughout the entire document; and (2) a list of all formulas applied in the 

document and a legend for any abbreviations used in the formulas. The legend and formula information 

is key to understanding these documents. 

We make this request without waiving any of our CBI designations. Because you are providing the 

information only to us, there is no breach of confidentiality and no waiver of CBI protections. 

Furthermore, we are not requesting CBI information, or CBI-derived information, from other companies 

that may have furnished data or information appearing in the listed documents. We are requesting only 

information related to our own facilities. 
We have done our best to be selective in asking for facility-specific information. The information we are 

seeking, however, is critical to our review of, and preparation of comments on, the proposed ELG Rule. 

Please use the mailing address contained on my letterhead to forward a written copy of the requested 

information. If possible, I would also like to receive an electronic copy of the information, utilizing my 

company e-mail address (michael.winkler@lge-ku.com). 

If you have any questions about this request, please call or email me. I look forward to your prompt 

response. Thank you very much for your help. 

W. Michael Winkler 

Certification Statement 

"I certifij under penalhj of law that I am a responsible corporate official or his/her authorized 

representative of Louisville Gas & Electric Co. and Kentucktj Utilities Co. (LG&E and KU Energtj) and 

am authorized to request confidential business information on behalf of my company. I certifiJ that 

Louisville Gas & Electric Co. and Kentucky Utilities Co. are the majorihJ owners or tire operators for each 

facilihJ (and for each unit at each facilihJ) for which we are requesting confidential business information. I 

am aware that there -may be significant penalties for submitting false information including tire possibilihJ 

of fines and imprisonment, pursuant to 18 U.S. C. § 1001. "