### Public Service ofNewHampshire
ANortheastUtilities Company



### VIA ELECTRONICMAIL RETURNRECEIPTREQUESTED PSNH Energy Park 780 North Commercial Street, Manchester, NH 03101
Public Service Company ofNewHampshire P.O. Box330 Manchester, NH Q3105-0330 (603) 669-4000 www.psnh.com



### To: Mr. James Covington, USEPA, covington.james@epa.gov Mr. Ronald Jordan, USEPA,jordan.ronald@epa.gov
From: Allan Palmer, PSNH, allan.palmer@nu.com

cc: Ms. Jezebele Alicea-Virella, USEPA, alicea.jezebele@epa.gov Ms. Linda Landis, PSNH, linda.landis@nu.com
Urgent: Request for Release ofInformation From Docket No. EPA-HQ-OW-2009-0819 ***PROMPT RESPONSE REQUESTED***

DearMr. Covington and Mr. Jordan:
I believe that Public Service ofNewHampshire (PSNH) has provided information regarding ourpowerplants that is being used by EPA inthe development ofthe proposed revisions to the effluent limitations guidelines and standards for the steam electric power generating point source category, i.e., the "ELG Rule." I believe the informationwas provided eitherviaresponses to earlier ELGRule questionnaires to the industry or by separate informationrequests made by EPA directly to PSNH. The specific facilities in question are as follows:
Merrimack Station Newington Station Schiller Station NPDES PermitNo. NH0001465 NPDES PermitNo. NH0001601 NPDES PermitNo. NH0001473
We have identified certain record documents whichwe believe contain information reported by, orderived from data or information reported by, one ormore ofour facilities. EPA has redacted all orportions ofthese documents as "confidential business information" (CBI).
We are requesting that you provide to PSNH all information related to our facilities listed above (including informationthat 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:

086161 REV. 11-09EPA-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 HighFlowAnalysis 1959 (DCN SE01825A73) BottomAshMDS Conveyance O&M Costs 1959 (DCN SE01825A74) BottomAsh Intermediate Storage O&M Costs 1959 (DCN SE01825A75) Bottom Ash Wet Sluicing O&M Costs 1959 (DCN SE01825A76) Bottom AshRemote 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 AshTransport Water 1986 (SE01756) CBI Future Profile FGD Loads 2104 (SE02897) CBI SteamElectric CostModel (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 BottomAshManagement Determination Calculations 2195 (SE03507) Loads CalculationDatabase

- 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 Memorandumto the SteamElectric 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 ourthree facilities. Forexample, our facilities supplied information about existing control technologies. Throughthis request, we are requesting not onlythe control technologies information suppliedby ourfacilities, but also control technologies information about our facilities derived from other sources, as well as all EPA-developed informationrelating to our control technologies, including EPA's assessments offuture technology choices for our facilities based onthe various rule options.
Foreach document, as appropriate, please also include: (1) a legend which explains each columnheading and each abbreviationused throughoutthe entire document; and (2) a list ofall formulas applied in the document and a legend for any abbreviations used inthe formulas. The legend and formula information is key to understanding these documents.
We make this request without waiving any ofour CBI designations. Because you are providing the information only to us, there is no breach ofconfidentiality and no waiver ofCBIprotections. Furthermore, we are not requesting CBI information, or CBI-derived

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### information, from other companies that may have furnished data orinformation 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 ourreview of, and preparation of comments on, the proposed ELG Rule. Because there are less than 50 days left in the comment period, we askthat you expedite this request.


### Ifyou have any questions aboutthis request, please feel free to contact me viaemail or by calling 603-634-2439. I look forward to yourprompt response. Thank you very much for your help.
Very truly yours,

Allan G. Palmer Senior Engineer

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