From: "Alicea, Jezebele" <Alicea.Jezebele@epa.gov>

To: "Messinger, Lisa C." <LMessinger@Vectren.com>

CC: "Covington, James" <Covington.James@epa.gov>, "Jordan, Ronald" <Jordan.Ronald@epa.gov>

Date: 7/24/2013 11:29 AM

Subject: RE: Information Request

Greetings Ms. Messinger!

EPA received your request for "all information related to A. B. Brown Generating Station and F. B. Culley Generation Station, facilities owned 

by Southern Indiana Gas and Electric Company, including information that EPA has derived from information obtained from these facilities and 

from all other sources, and including facility-specific or facility-derived information in input files to" certain documents found on the docket for 

the Steam Electric ELG rulemaking.

EPA has made available substantial data and other information relating to the proposed rule in the docket for the steam electric power generating 

effluent guidelines rulemaking, including data relating to the specific facility(ies) you identified, data about other plants where that data is not 

claimed as confidential business information or could lead to the disclosure of confidential business information, equations used to estimate 

several key outputs such as costs, and a description of the various methodologies used by EPA (e.g., costing methodologies, pollutant loadings 

methodologies, etc.). In addition to this publicly available data, in response to your request, EPA is planning to forward under separate 

correspondence additional data that provides plant-specific compliance costs and pollutant removals that EPA estimated would be attributable to 

the proposed rule, as well as plant-specific input values that were used in EPA's cost models, pollutant loadings/removal models, and 

environmental assessment models. EPA is planning to provide a description of how each plant can use available data to make relevant 

calculations, such as how to calculate pollutant loadings. EPA believes these data, in addition to the publicly available data already provided in 

the docket, provide you with sufficient information to understand any effects the proposed rule may have on your facilities and to comment 

effectively on the proposed rule, and this data represents the extent of information that EPA can make available to you without disclosing, 

directly or indirectly, information claimed as confidential business information by other sources.

To ensure that confidential business information is only released to an authorized official, EPA requires that you submit your request on company 

letterhead using the certification statement below. The certifying official must be a responsible corporate official or his/her authorized 

representative.

Certification Statement

"I certify under penalty of law that I am a responsible corporate official or his/her authorized representative of [fill in name of corporate entity] 

and am authorized to request confidential business information on behalf of my company. I certify that [fill in name of corporate entity] is the 

majority owner or the operator for each facility (and for each unit at each facility) for which we are requesting confidential business information. 

I am aware that there may be significant penalties for submitting false information including the possibility of fines and imprisonment, pursuant 

to 18 U.S.C. § 1001. "

In addition, you must provide the name (if not the certifying official) and mailing address (no P.O. boxes) for receipt of the requested 

information. Mailing addresses must be accessible to a commercial courier service (e.g., Federal Express).

Have a blessed day!

Sincerely,

[MC900437627[1]][MC900437627[1]][MC900437627[1]][MC900437627[1]][MC900437627[1]]

Jezebele Alicea-Virella

Environmental Engineer

Phone No: 202-566-1755

Fax No: 202-566-1053

EPA-Office of Water/OST/EAD

Mail Code: 4303T

1200 Pennsylvania Avenue, N.W.

Washington, D.C. 20460

[MC900437627[1]][MC900437627[1]][MC900437627[1]][MC900437627[1]][MC900437627[1]]

From: Messinger, Lisa C. [mailto:LMessinger@Vectren.com]

Sent: Tuesday, June 18, 2013 3:54 PM

To: Alicea, Jezebele; Covington, James

Subject: Information Request

Attached please find a request for information used in the ELG rulemaking, provided by and pertaining to the SIGECO (dba Vectren Power 

Supply) A. B. Brown Generating Station and F. CB. Culley Generating Station, both located in Indiana.

Thank-you,

Lisa C. Messinger, CHMM

Manager, Utility Environmental Compliance

Vectren Corporation

812-491-4666

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