MEMORANDUM 

TO: Bill Swietlik, EPA 

FROM: Lydia Lambert, ERG 

 

DATE: April 19, 2013 

SUBJECT: Proximity Analyses Methodology (DCN SE03575) 

ERG prepared an environmental assessment (EA) for the proposed effluent limitations 

guidelines and standards (ELGs) for the steam electric power generating point source category. 

This memorandum documents the methodology and resources used in the EA for identifying 

surface waters that receive discharges of the evaluated waste streams and are located in close 

proximity to the following sensitive environments: 

 Impaired waters; 

 Fish consumption advisories; 

 Drinking water intakes; 

 Public wells; and 

 Sole-source aquifers (SSAs). 

1.0 RESOURCES

ERG identified a total of 281 plants1 that directly discharge the evaluated waste streams 

under the current profile.2

 A subset of the 281 plants discharges to multiple receiving waters; 

therefore, ERG evaluated the immediate discharge point3 in 317 unique plant-receiving water 

combinations. ERG first identified the immediate receiving water according to the methodology 

documented in the Water Quality Model: Plant and Receiving Water Characteristics 

Memorandum (DCN SE01955). For the purposes of this analysis, ERG then selected an 

immediate discharge point on the receiving water with the assumption that each plant is directly 

discharging all evaluated waste streams to the same point on the immediate receiving water. 

ERG conducted the proximity analyses using Esri ArcGIS Desktop software and NHD 

Plus-indexed geographical information system (GIS) datasets that document the location of the 

sensitive environments. In GIS, a geographic feature is represented as a point, line, or polygon 

file. ERG created a point file to represent the immediate discharge point approximately halfway 

 

1

 See Table 2-2 of EPA’s Final Environmental Assessment for the Proposed Effluent Limitations Guidelines and 

Standards for the Steam Electric Power Generating Point Source Category (EA Report) (DCN SE01995) for a 

summary of the number of plants evaluated in the EA. 2

 See Section 10 of EPA’s Technical Development Document for the Proposed Effluent Limitations Guidelines and 

Standards for the Steam Electric Power Generating Point Source Category (TDD) (DCN SE01964) for a 

description of the methodology used to calculate pollutant loadings directly discharged from steam electric power 

plants. See Table 6-1 of the EA Report for a summary of the evaluated waste streams under each regulatory option. 3

 The immediate discharge point is the point on the immediate receiving water where the plant is discharging the 

evaluated waste streams. 
Memorandum 

April 19, 2013 

Page 2 

downstream on the receiving water segment. ERG then created a user-defined buffer zone 

around each point to identify the plants whose immediate discharge points are located in close 

proximity to sensitive environments. An example of a plant directly discharging the evaluated 

waste streams to an impaired river and lake in GIS is shown Figure 1 below. The user-defined 

buffer zones and GIS datasets used in each proximity analysis are presented in Table 1 below. 

Figure 1. Example of a Plant Directly Discharging Evaluated Waste Streams in Close 

Proximity to Sensitive Environments 

Table 1. Proximity Analyses Data Sources 

Sensitive Area GIS Data Source

User-Defined 

Buffer Zone 

GIS Data 

Type 

Impaired 

Waters 

303(d) Listed Impaired Waters NHD Indexed Dataset. Reach 

Address Database (RAD). Extracted on March 31, 2011. Available 

online at: http://www.epa.gov/waters/data/downloads.html. (DCN 

SE 03556). 

500 feet Line 

(rivers); 

Polygon 

(lakes) 

Water Quality Assessment and Total Maximum Daily Loads 

Information (ATTAINS). Extracted on May 12, 2011. Available 

online at: http://www.epa.gov/waters/tmdl/expert_query.html. 

(DCN SE03557). 

Fish 

Consumption 

Advisories 

Fish Consumption Advisories NHD Indexed Dataset. RAD. 

Extracted on May 7, 2011. Available online at: 

http://epamap32.epa.gov/radims/. (DCN SE03558). 

500 feet Line 

(rivers); 

Polygon 

EPA National Listing of Fish Advisories (NLFA) Database. (DCN (lakes) 

SE03559). 

Drinking Water 

Intakes and 

Public Wells 

Drinking Water NHD Indexed Dataset. RAD. EPA sensitive 

information. (DCN SE03560). 

5 miles Point 

SSA Sole Source Aquifers NHD Indexed Dataset. RAD. EPA sensitive 

information. (DCN SE03561). 

5 miles Polygon 
Memorandum 

April 19, 2013 

Page 3 

2.0 METHODOLOGY

 This section presents the methodology used to identify plants located in close proximity 

to impaired waters, waters issued fish consumption advisories, drinking water intakes, public 

wells, and SSAs. 

2.1 Impaired Waters

 ERG identified plants that are directly discharging the evaluated waste streams to 

impaired waters by creating a 500-foot buffer around the immediate discharge points. ERG 

selected the 500-foot buffer to account for nominal projection errors between the NHD Plus GIS 

datasets. ERG then performed a spatial join between the buffer and the line and polygon files 

(i.e., rivers and lakes) from the 303(d) Listed Impaired Waters NHD Indexed Dataset and 

selected the immediate discharge points whose buffers intersected the line and polygon files. 

Attachment 1 lists all of the plants that, based on this analysis, directly discharge to impaired 

waters. 

 ERG identified the cause of the impairment in the rivers and lakes that intersected the 

buffer by linking the “source feature ID” field in the 303(d) Listed Impaired Waters NHD 

Indexed Dataset with the “listed water ID” field in the ATTAINS Dataset. Attachment 2 lists the 

plants’ immediate receiving waters that are impaired for pollutants commonly found in 

combustion wastewater discharges from steam electric power plants (i.e., pollutants of concern). 

 For more information on the results of the impaired waters proximity analysis, refer to 

Section 3.4.1 (Proximity to Impaired Waters) and Section 6.4.1 (Impaired Waters) of the EA 

Report. 

2.2 Fish Consumption Advisories

 The methodology for the fish consumption advisories analysis is very similar to the 

impaired waters analysis. For the fish consumption advisories analysis, ERG performed a spatial 

join between the 500-foot buffer around the immediate discharge points to the line and polygon 

files from the Fish Consumption Advisories NHD Indexed Dataset and selected the immediate 

discharge points whose buffers intersected the line and polygon files. Attachment 3 lists all of the 

plants that, based on this analysis, directly discharge to waters issued a fish consumption 

advisory. 

 ERG identified the cause of the advisory in the rivers and lakes that intersected the buffer 

by linking the “source feature code” field in the Fish Consumption Advisories NHD Indexed 

Dataset to the “ADVNUM” field in the NLFWA Dataset. Attachment 4 lists the plants’ 

immediate receiving waters issued an advisory for a pollutant of concern. 

 For more information on the results of the fish consumption advisory analysis, refer to 

Section 3.4.2 (Proximity to Fish Consumption Advisory Waters) and Section 6.4.2 (Fish 

Advisory Waters) of the EA Report. 
Memorandum 

April 19, 2013 

Page 4 

2.3 Drinking Water Resources

 ERG identified plants that are directly discharging the evaluated waste streams in close 

proximity to drinking water intakes, public wells, and SSAs by creating a five-mile buffer around 

the immediate discharge points. ERG used best professional judgment in assigning a distance of 

five miles for the buffer.4

 ERG then performed a spatial join between the buffer and the point 

and polygon files from the following datasets and selected the points that fell completely inside 

the buffer and polygons that intersected the buffer: 

 Drinking Water NHD Indexed Dataset: This is a national dataset of public water 

system source facilities. ERG created a point file that contains only the latitude and 

longitude coordinates of drinking water intakes and public wells.5 

 Sole Source Aquifers NHD Indexed Dataset: This is a national dataset of SSAs. 

 Attachment 5 lists all of the plants that, based on this analysis, are located in close 

proximity to drinking water intakes, public wells, and SSAs. 

 For more information on the results of the drinking water proximity analysis, refer to 

Section 3.4.4 (Proximity to Drinking Water Resources) of the EA Report. 

 

4

 When applying the five-mile buffer to identify potentially affected drinking water resources, ERG did not evaluate 

whether the identified resources are located upstream or downstream of the immediate discharge point. ERG would 

need to perform further analysis to identify those specific resources that are located downstream of immediate 

discharge points. 

5

 The drinking water facilities excluded from this analysis include cistern, clear well, common headers, consecutive 

connection, distribution system zone, infiltration gallery, non-piped, other, pressure control, pump facility, roof 

catchment, sampling station, storage, surface impoundment, transmission main, and treatment plant. 
3.0 REFERENCES

AEC Lowman Steam Plant. 2004. Alabama Department of Environmental Management National 

Pollutant Discharge Elimination System (NPDES) Discharge Permit AL0003671. DCN 

SE03894. 

AES Eastern Energy LP. 2010. New York State Department of Environmental Conservation 

State Pollutant Discharge Elimination System (SPDES) Discharge Permit NY0001325. DCN 

SE03893. 

U.S. EPA. 2012a. Receiving Water COMID Point File. Washington, DC. DCN SE03563. 

U.S. EPA. 2012b. Impaired Waters Proximity Database. Washington, DC. DCN SE03566. 

U.S. EPA. 2012c. Fish Consumption Advisories Proximity Database. Washington, DC. DCN 

SE03567. 

U.S. EPA. 2012d. Drinking Water Proximity Database. Washington, DC. DCN SE03568. 

U.S. EPA. 2012e. Sole Source Aquifer Proximity Database. Washington, DC. DCN SE03569. 

U.S. EPA. 2012f. Compiled Proximity Database. Washington, DC. DCN SE03570. 
Attachment 1 

April 19, 2013 Page A-1 Attachment 1: Impaired Waters Analysis 

Table 1-1. Plants Directly Discharging to Impaired Waters

COMID Plant Name Receiving Water N

381688 Muskogee Generating Station Arkansas River 

18819844 Sheldon Station Big Blue River 

1920740 JM Stuart Station Buzzardroost Creek 

21979641 AES Cayuga LLC a Cayuga Lake 14787485 Will County Station Chicago Sanitary and Ship Canal 

8151995 PPL Montour Chillisquaque Creek 

14643309 Bull Run Clinch River 

6782121 Mount Tom Generating Company, LLC Connecticut River 7701182 Middletown Power LLC Connecticut River 

19454513 Mitchell Plant Conner Run 15823211 Plant Hammond Coosa River 22199835 Plant Gadsden Coosa River 22273458 Plant E C Gaston Coosa River 11884778 Cumberland Cumberland River 10054602 Chesapeake Energy Center Deep Creek 

2588325 RRI Energy Inc. Portland Generating Station Delaware River 4481763 PSEG Mercer Generating Station Delaware River 4995391 Interstate Power and Light - Ottumwa Generating Station Des Moines River 

14788089 b Joliet Station 9 Des Plaines River 

10850250 River Rouge Power Plant Detroit River 10850256 Wyandotte Municipal Services-Power Plant Detroit River 14638941 Clinch River Plant Dumps Creek 

6907783 Glen Lyn Plant East River 

448630 Plant Crist Escambia River 

14365710 Mount Storm Power Station Four Mile Run 12005077 Pulliam Fox River 

5577643 Gibbons Creek Steam Electric Station Gibbons Creek Reservoir 9005799 J. B. Sims Generating Station Grand River 
Attachment 1 

April 19, 2013 Page A-2 

Table 1-1. Plants Directly Discharging to Impaired Waters

COMID Plant Name Receiving Water N

12245290 Eckert Station Grand River 

9436883 B L England Great Egg Harbor 3883754 O.H. Hutchings Station Great Miami River 3886042 Miami Fort Station Great Miami River 

11630665 Green River Green River 15075546 Entergy Gulf States, LLC - Roy S. Nelson Station Houston River 

6212808 Danskammer Generating Station Hudson River 3601022 Pearl Station Illinois River 

13606204 E.D. Edwards Illinois River 13606224 Powerton Station Illinois River 13606886 Duck Creek Power Plant Illinois River 13608606 Havana Power Station Illinois River 14780202 Hennepin Power Station Illinois River 17538901 Interstate Power and Light - Sutherland Generating Station Iowa River 

8548185 Bremo Power Station James River 

10067405 Dominion - Chesterfield Power Station James River 

6925319 Kanawha River Plant Kanawha River 

19315420 John E. Amos Plant Kanawha River 13437773 R. M. Schahfer Generating Station Kankakee River 

3729559 Lawrence Energy Center Kansas River 1827714 William C. Dale Power Station Kentucky River 

19443215 General James M. Gavin Kyger Creek 19443313 OVEC - Kyger Creek Station Kyger Creek 

2996516 LaCygne Generating Station La Cygnes Lake 9840314 Dunkirk Generating Plant Lake Erie 

25769231 JR Whiting Power Plant Lake Erie 28125104 Avon Lake Power Plant Lake Erie 30726982 Monroe Power Plant Lake Erie 12919103 Harbor Beach Power Plant Lake Huron 

9017879 James De Young Generating Station Lake Macatawa 
Attachment 1 

April 19, 2013 Page A-3 

Table 1-1. Plants Directly Discharging to Impaired Waters

COMID Plant Name Receiving Water N

3397270 NIPSCO Michigan City Generating Station Lake Michigan 3398586 NIPSCO Bailly Generating Station Lake Michigan 

12169333 Oak Creek Power Plant Lake Michigan 12169377 Pleasant Prairie Power Plant Lake Michigan 12176006 Edgewater Generating Station Lake Michigan 15561361 AES - Somerset Lake Ontario 12026640 Presque Isle Power Plant Lake Superior 

4462856 Associated Electric Cooperative, Inc, Thomas Hill Energy Center Little Chariton River 

11049576 Cheswick Power Station Little Deer Creek 

397428 Flint Creek Power Plant Little Flint Creek 

19443295 OVEC - Kyger Creek Station Little Kyger Creek 16883592 Manatee Little Manatee River 

1920666 JM Stuart Station Little Three Mile Creek 

12162650 Valley Power Plant Menomonee River 

6742054 PSNH - Merrimack Station Merrimack River 

880824 AmerenUE Sioux Power Plant Mississippi River 

2118222 John P. Madgett Mississippi River 2723115 Sherburne County Generating Plant Mississippi River 3629181 Rush Island Mississippi River 6966239 Interstate Power and Light - Burlington Generating Station Mississippi River 7469410 New Madrid Power Plant Mississippi River 

13208374 Genoa #3 Mississippi River 13211666 Interstate Power and Light - Lansing Generating Station Mississippi River 13326792 Wisconsin Power and Light - Nelson Dewey Generating Station Mississippi River 13357548 Interstate Power and Light - Dubuque Generating Station Mississippi River 14804489 Riverside Generating Station Mississippi River 14805943 Fair Station Mississippi River 14807193 Louisa Generating Station Mississippi River 14807223 Muscatine Power and Water Generating Station Mississippi River 14809371 M.L. Kapp Generating Station Mississippi River 
Attachment 1 

April 19, 2013 Page A-4 

Table 1-1. Plants Directly Discharging to Impaired Waters

COMID Plant Name Receiving Water N

6010286 Labadie Power Plant Missouri River 7312385 Nebraska City Station Missouri River 

17219468 North Omaha Station Missouri River 

17244416 b George Neal South Missouri River 

18522283 Plant Barry Mobile River 

3768832 Fort Martin Power Station Monongahela River 6130891 Brayton Point Station Mount Hope Bay 

14365968 Mount Storm Power Station Mount Storm Lake 12135490 B C Cobb Power Plant Muskegon Lake 15379411 Conesville Muskingum River 15383255 Muskingum River Muskingum River 14519135 Milton R Young Station Nelson Lake 

6908685 Glen Lyn Plant New River 

15569803 C R Huntley Generating Station Niagara River 

1839957 Joppa Steam Ohio River 3406123 AEP Tanners Creek Plant Ohio River 3407479 East Bend Station Ohio River 3408277 Ghent Ohio River 3821113 Bruce Mansfield Plant Ohio River 3821343 W. H. Sammis Plant Ohio River 

10109549 Kenneth C. Coleman Station Ohio River 10110333 Rockport Ohio River 10110339 F.B. Culley Generating Station Ohio River 10110377 Elmer Smith Station Ohio River 10157791 A. B. Brown Station Ohio River 10161934 Clifty Creek Station Ohio River 10161978 Trimble County Ohio River 10164012 Gallagher Generating Station Ohio River 10164018 Cane Run Ohio River 10164038 Mill Creek Ohio River 
Attachment 1 

April 19, 2013 Page A-5 

Table 1-1. Plants Directly Discharging to Impaired Waters

COMID Plant Name Receiving Water N

15434056 Plesants Power Station Ohio River 19453107 Cardinal Ohio River 19455277 R. E. Burger Plant Ohio River 19455341 Kammer Plant Ohio River 19455355 Mitchell Plant Ohio River 

1767108 Laskin Energy Center Partridge River 

11908816 Chalk Point Generating Station Patuxent River 22178444 John Sevier Polly Branch 

1922510 Walter C Beckjord Station Pond Run 4507392 Dickerson Generating Station Potomac River 4532873 Mirant Mid-Atlantic, LLC Potomac River 8653054 Clover Power Station Roanoke River 3715680 Harrison Power Station Robinson Run 

951449 Comanche Station Saint Charles River 

13196020 b Belle River Power Plant Saint Clair River 

2649706 Allen S King Generating Plant Saint Croix River 

16660003 JEA- St. Johns River Power Park Saint Johns River 12254504 Michigan South Central Power Agency Saint Joseph River 13565470 Kindcaid Generation, LLC Sangchris Lake 

4782753 Titus Generation Station Schuylkill River 5218205 Picway Scioto River 

20972936 Sooner Power Plant Sooner Reservoir 16665275 Seminole Generating Station St. Johns River 14365968 Mount Storm Power Station Stony River 13564578 Dallman Sugar Creek 

397492 Flint Creek Power Plant SWEPCO Lake 

6130213 Somerset Station Taunton River 3646684 Tecumseh Energy Center Tecumseh Creek 

21642176 Charles R. Lowman c Tombigbee River 19443249 General James M. Gavin Turkey Run 
Attachment 1 

April 19, 2013 Page A-6 

Table 1-1. Plants Directly Discharging to Impaired Waters

COMID Plant Name Receiving Water N

10283906 Wabash River Generating Station Wabash River 

2178615 Plant Lansing Smith Warren Bayou 

22134501 Kingston Watts Bar Reservoir 

4672489 Shawville West Branch Susquehanna River 3715694 Harrison Power Station West Fork River 

18472136 Frank E. Ratts Generating Station White River 18477247 Indianapolis Power & Light Co. - Eagle Valley Generating Station White River 

7607261 Southwest Power Station Wilsons Creek 

13633837 Wisconsin Power and Light - Columba Energy Center Wisconsin River 14732378 Wisconsin Public Service - Weston Plant Wisconsin River 

879898 Wood River Power Station Wood River 

9223641 Buck Steam Station Yadkin River 4343012 J.E. Corette Treatment Plant Yellowstone River 

21871785 Lewis & Clark Station Yellowstone River 

Source: U.S. EPA, 2012a; U.S. EPA, 2012b; U.S. EPA, 2012f. a – The outfall coordinates and the receiving water name were claimed confidential business information (CBI) in the Questionnaire for the 

Generating Effluent Guidelines (Steam Electric Survey) (DCN SE01958). However, EPA waived the claim because the plant’s outfall coord

were identified in a publically available source [AES Eastern Energy LP, 2010]. b – Multiple plants discharge to this COMID. In the modeling analyses the loads from the two plants are combined and modeled as one plan

c – The outfall coordinates were claimed CBI in the Steam Electric Survey. However, EPA waived the CBI claim because the plant’s outfala publically available source [AEC Lowman Steam Plant, 2004].
Attachment 1 

April 19, 2013 Page A-1 

Table 1-2. Immediate Receiving Waters that are Impaired for Pollutants of Concern

COMID As Cd Cr Cu Pb Mn Hg P Se Zn Chlo

381688 X X 

18819844 X 14787485 X X X X X 19454513 X 22199835 X 22273458 X 

4481763 X X X X X X X 2588325 X 

14788089 a X X X X 

10850256 X 10850250 X 

448630 X 

12005077 X 

9005799 X 

12245290 X 15075546 X 

6212808 X 

13606224 X 13606204 X 

3601022 X 

13608606 X X 14780202 X 13606886 X X 19315420 X 

3729559 X X X 1827714 X 2996516 X 

28125104 

9017879 X 

12169333 X 12176006 X 
Attachment 1 

April 19, 2013 Page A-2 

Table 1-2. Immediate Receiving Waters that are Impaired for Pollutants of Concern

COMID As Cd Cr Cu Pb Mn Hg P Se Zn Chlo

12169377 X 

3398586 X 3397270 X 

12026640 X 11049576 

397428 X 

16883592 12162650 X 

6742054 X 

13326792 X 

2723115 X 2118222 X 6966239 X 

880824 X X 

13211666 X 13208374 X 13357548 X 

3629181 X X X 

14804489 X 14809371 

7469410 X 

18522283 X 12135490 X 10110333 X 10157791 X 10110377 X 

1839957 X 

10110339 X 10109549 X 

1767108 X 

11908816 
Attachment 1 

April 19, 2013 Page A-3 

Table 1-2. Immediate Receiving Waters that are Impaired for Pollutants of Concern

COMID As Cd Cr Cu Pb Mn Hg P Se Zn Chlo

22178444 X 

4532873 4507392 8653054 X 3715680 X 

951449 X 

2649706 X 

16660003 

5218205 

20972936 16665275 X X X 13564578 X 

397492 X 

3646684 X X 

21642176 b X 

10283906 X 

3715694 X 

18472136 X 18477247 X 13633837 X 14732378 X 

879898 X X X 

9223641 X 

21871785 X X X X 

4343012 X 

Source: U.S. EPA, 2012a; U.S. EPA, 2012b; U.S. EPA, 2012f. Acronyms: Arsenic (As), Cadmium (Cd), Chromium (Cr), Copper (Cu), Lead (Pb), Manganese (Mn), Mercury (Hg), Phosphorus (P), SelenNote: An “X” indicates that the immediate discharge zone (i.e., COMID) is impaired for the pollutant. a – Multiple plants discharge to this COMID. In the modeling analyses the loads from the two plants are combined and modeled as one planb – The outfall coordinates were claimed CBI in the Steam Electric Survey. However, EPA waived the CBI claim because the plant’s outfal

in a publically available source [AEC Lowman Steam Plant, 2004].
Attachment 2 

April 19, 2013 Page A-4 Attachment 2: Fish Consumption Advisory Analysis 

Table 2-1. Plants Directly Discharging to Waters Issued a Fish Consumption Advisory

COMID Plant Name Receiving Water N

4742231 RRI Energy Keystone Generating Station Allegheny River 

11050038 Cheswick Power Station Allegheny River 19464172 New Castle Power Plant Beaver River 18592136 Plant Gorgas Black Warrior Creek 

4754836 EME Homer City Generation L.P. Blacklick Creek 

908539 Big Sandy Blaine Creek 

19451557 Cardinal Blockhouse Hollow Run 12035539 Cliffside Steam Station Broad River 

2587781 RRI Energy Inc. Portland Generating Station Brushy Meadow Creek 1920740 JM Stuart Station Buzzardroost Creek 9756896 Allen Steam Station Catawba River 

21979641 AES Cayuga LLC a Cayuga Lake 

3286344 Plant Jack McDonough Chattahoochee River 3290268 Plant Yates Chattahoochee River 3291908 Georgia Power Company - Plant Wansley Chattahoochee River 

14787485 Will County Station Chicago Sanitary and Ship Canal 

8151995 PPL Montour Chillisquaque Creek 6782121 Mount Tom Generating Company, LLC Connecticut River 7701182 Middletown Power LLC Connecticut River 9643641 Williams Station Cooper River 

15823211 Plant Hammond Coosa River 22199835 Plant Gadsden Coosa River 

4741469 RRI Energy Keystone Generating Station Crooked Creek 8677721 Dan River Steam Station Dan River 8679473 Belews Creek Steam Station Dan River 

13437811 b R. M. Schahfer Generating Station Davis Ditch 

2588325 RRI Energy Inc. Portland Generating Station Delaware River 4481763 PSEG Mercer Generating Station Delaware River 

14788089 c Joliet Station 9 Des Plaines River 
Attachment 2 

April 19, 2013 Page A-5 

Table 2-1. Plants Directly Discharging to Waters Issued a Fish Consumption Advisory

COMID Plant Name Receiving Water N

10850250 River Rouge Power Plant Detroit River 10850256 Wyandotte Municipal Services-Power Plant Detroit River 10850286 Trenton Channel Power Plant Detroit River 

9673662 Cross Generating Station Diversion Canal 9614169 Canadys Station Edisto River 

448630 Plant Crist Escambia River 

6499098 Georgia Power Company - Plant Bowen Etowah River 

12005077 Pulliam Fox River 22165396 Asheville Steam Electric Plant French Broad River 

9005799 J. B. Sims Generating Station Grand River 9436883 B L England Great Egg Harbor 3883754 O.H. Hutchings Station Great Miami River 3886042 Miami Fort Station Great Miami River 

11617335 c R D Green Green River 

11630665 Green River Green River 16928218 Crystal River Energy Complex Gulf of Mexico 

1827174 E.W. Brown Herrington Lake 

16919194 Tampa Electric - Big Bend Station Hillsborough Bay 

6212808 Danskammer Generating Station Hudson River 8696233 Roxboro Steam Plant Hyco Lake 

14780202 Hennepin Power Station Illinois River 11627775 Paradise Jacobs Creek 10067405 Dominion - Chesterfield Power Station James River 22326519 Boswell Energy Center Jay Gould Lake 

6925319 Kanawha River Plant Kanawha River 

19315420 John E. Amos Plant Kanawha River 13437773 R. M. Schahfer Generating Station Kankakee River 

1827714 William C. Dale Power Station Kentucky River 

21978203 AES Greenidge LLC Keuka Outlet 19443215 General James M. Gavin Kyger Creek 
Attachment 2 

April 19, 2013 Page A-6 

Table 2-1. Plants Directly Discharging to Waters Issued a Fish Consumption Advisory

COMID Plant Name Receiving Water N

19443313 OVEC - Kyger Creek Station Kyger Creek 

6445736 Plant Crisp Lake Blackshear 9840314 Dunkirk Generating Plant Lake Erie 

28125104 Avon Lake Power Plant Lake Erie 12919103 Harbor Beach Power Plant Lake Huron 

9017879 James De Young Generating Station Lake Macatawa 3397270 NIPSCO Michigan City Generating Station Lake Michigan 3398586 NIPSCO Bailly Generating Station Lake Michigan 

12169333 Oak Creek Power Plant Lake Michigan 12169377 Pleasant Prairie Power Plant Lake Michigan 12176006 Edgewater Generating Station Lake Michigan 

9755486 Marshall Steam Station Lake Norman 

15561361 AES - Somerset Lake Ontario 

1943791 Plant Harllee Branch Lake Sinclair 

12026640 Presque Isle Power Plant Lake Superior 18470878 Indianapolis Power & Light Company - Petersburg Generating Station Lick Creek 18476493 Indianapolis Power & Light Company - Harding Street Station Lick Creek 

8099955 AES Westover, LLC Little Choconut Creek 

11049576 Cheswick Power Station Little Deer Creek 19443295 OVEC - Kyger Creek Station Little Kyger Creek 

1920666 JM Stuart Station Little Three Mile Creek 3787587 Hatfield's Ferry Power Station Little Whiteley Creek 

18567401 Plant James H Miller Jr Locust Fork 

8693517 Mayo Electric Generating Plant Mayo Reservoir 

12162650 Valley Power Plant Menomonee River 

6742054 PSNH - Merrimack Station Merrimack River 

880824 AmerenUE Sioux Power Plant Mississippi River 

2118222 John P. Madgett Mississippi River 2723115 Sherburne County Generating Plant Mississippi River 3629181 Rush Island Mississippi River 
Attachment 2 

April 19, 2013 Page A-7 

Table 2-1. Plants Directly Discharging to Waters Issued a Fish Consumption Advisory

COMID Plant Name Receiving Water N

6966239 Interstate Power and Light - Burlington Generating Station Mississippi River 7469410 New Madrid Power Plant Mississippi River 

13208374 Genoa #3 Mississippi River 13326792 Wisconsin Power and Light - Nelson Dewey Generating Station Mississippi River 13357548 Interstate Power and Light - Dubuque Generating Station Mississippi River 14804489 Riverside Generating Station Mississippi River 14805943 Fair Station Mississippi River 14807193 Louisa Generating Station Mississippi River 14807223 Muscatine Power and Water Generating Station Mississippi River 14809371 M.L. Kapp Generating Station Mississippi River 

4391297 Independence Missouri City Power Plant Missouri River 4391311 Sibley Generating Station Missouri River 6010286 Labadie Power Plant Missouri River 7312385 Nebraska City Station Missouri River 

14519595 c Leland Olds Station Missouri River 

17219468 North Omaha Station Missouri River 

3785889 Elrama Power Plant Monongahela River 3785919 Mitchell Power Station Monongahela River 3788073 Hatfield's Ferry Power Station Monongahela River 6130891 Brayton Point Station Mount Hope Bay 9755532 Riverbend Steam Station Mountain Island Lake 

15379411 Conesville Muskingum River 15383255 Muskingum River Muskingum River 14519135 Milton R Young Station Nelson Lake 15569803 C R Huntley Generating Station Niagara River 

901990011 Winyah Generating Station North Santee River 

1839957 Joppa Steam Ohio River 1921988 Dayton Power & Light, Killen Station Ohio River 1922018 EKPC Spurlock Station Ohio River 1922224 JM Stuart Station Ohio River 
Attachment 2 

April 19, 2013 Page A-8 

Table 2-1. Plants Directly Discharging to Waters Issued a Fish Consumption Advisory

COMID Plant Name Receiving Water N

1922872 Walter C Beckjord Station Ohio River 1922898 W H Zimmer Station Ohio River 3406069 Miami Fort Station Ohio River 3406123 AEP Tanners Creek Plant Ohio River 3407479 East Bend Station Ohio River 3408277 Ghent Ohio River 3821113 Bruce Mansfield Plant Ohio River 3821343 W. H. Sammis Plant Ohio River 

10109549 Kenneth C. Coleman Station Ohio River 10110333 Rockport Ohio River 10110339 F.B. Culley Generating Station Ohio River 10110377 Elmer Smith Station Ohio River 10157791 A. B. Brown Station Ohio River 10161934 Clifty Creek Station Ohio River 10161978 Trimble County Ohio River 10164012 Gallagher Generating Station Ohio River 10164018 Cane Run Ohio River 10164038 Mill Creek Ohio River 15434056 Plesants Power Station Ohio River 

19442931 c Mountaineer Plant Ohio River 

19442973 General James M. Gavin Ohio River 19443471 OVEC - Kyger Creek Station Ohio River 19453107 Cardinal Ohio River 19455277 R. E. Burger Plant Ohio River 19455341 Kammer Plant Ohio River 19455355 Mitchell Plant Ohio River 

6657975 Hoot Lake Plant Otter Tail River 1767108 Laskin Energy Center Partridge River 

11690558 Brandon Shores Patapsco River 11908816 Chalk Point Generating Station Patuxent River 
Attachment 2 

April 19, 2013 Page A-9 

Table 2-1. Plants Directly Discharging to Waters Issued a Fish Consumption Advisory

COMID Plant Name Receiving Water N

3786291 Mitchell Power Station Peters Creek 1922510 Walter C Beckjord Station Pond Run 4507392 Dickerson Generating Station Potomac River 4532873 Mirant Mid-Atlantic, LLC Potomac River 8653054 Clover Power Station Roanoke River 

14523377 R.M. Heskett Station Rock Haven Creek 

13196020 c Belle River Power Plant Saint Clair River 

2649706 Allen S King Generating Plant Saint Croix River 

12254504 Michigan South Central Power Agency Saint Joseph River 20107243 Plant Kraft Savannah River 

4782753 Titus Generation Station Schuylkill River 5218205 Picway Scioto River 

21979923 AES Greenidge LLC Seneca Lake 

7591059 Riverton Power Station Spring River 

13437811 b R. M. Schahfer Generating Station Stahlbaum Ditch 

5160339 Chamois Power Plant Stonners Branch 4518760 Sunbury Generation LP Susquehanna River 4722211 PPL Brunner Island Susquehanna River 8152547 PPL Montour Susquehanna River 6130213 Somerset Station Taunton River 

21642176 Charles R. Lowman d Tombigbee River 19443249 General James M. Gavin Turkey Run 10286056 Merom Generating Station Turtle Creek Reservoir 

4752366 EME Homer City Generation L.P. Two Lick Creek 4752260 EME Homer City Generation L.P. Unnamed tributary to Blacklick Creek 4754222 Conemaugh Unnamed tributary to Conemaugh River 

15370990 Conesville Unnamed tributary to Wills Creek 

9840092 Dunkirk Generating Plant Van Buren Bay Creek 

10209979 Cayuga Wabash River 10283906 Wabash River Generating Station Wabash River 
Attachment 2 

April 19, 2013 Page A-10 

Table 2-1. Plants Directly Discharging to Waters Issued a Fish Consumption Advisory

COMID Plant Name Receiving Water N

9071958 Grainger Generating Station Waccamaw River 

11690522 Brandon Shores Wagner Plant Discharge Canal 

9721753 Wateree Station Wateree River 

22134501 Kingston Watts Bar Reservoir 

4672489 Shawville West Branch Susquehanna River 

18472136 Frank E. Ratts Generating Station White River 18477247 Indianapolis Power & Light Co. - Eagle Valley Generating Station White River 13633837 Wisconsin Power and Light - Columba Energy Center Wisconsin River 14732378 Wisconsin Public Service - Weston Plant Wisconsin River 

9223641 Buck Steam Station Yadkin River 

Source: U.S. EPA, 2012a; U.S. EPA, 2012c; U.S. EPA, 2012f. a – The outfall coordinates and the receiving water name were claimed CBI in the Steam Electric Survey. However, EPA waived the claim coordinates and receiving water were identified in a publically available source [AES Eastern Energy LP, 2010]. 

b – The specific receiving water reported in Steam Electric Survey could not be identified in NHD Plus for this plant. ERG selected this CO

water to extract the receiving water characteristic data. In the EA these plant-receiving waters were modeled as two distinct receiving waterc – Multiple plants discharge to this COMID. In the modeling analyses the loads from the two plants are combined and modeled as one pland – The outfall coordinates were claimed CBI in the Steam Electric Survey. However, EPA waived the CBI claim because the plant’s outfalin a publically available source [AEC Lowman Steam Plant, 2004]. 
Attachment 1 

April 19, 2013 Page A-1 

Table 2-2. Immediate Receiving Waters Issued a Fish Consumption Advisory for Pollutants of 

COMID Cadmium Lead 

908539 

19451557 12035539 

1920740 9756896 

21979641 a 

7701182 6782121 9643641 

15823211 

8679473 8677721 4481763 2588325 

10850256 10850250 10850286 

9673662 9614169 

448630 

6499098 

22165396 

9005799 9436883 3886042 X 3883754 X 

11630665 

11617335 b 

16928218 

1827174 

16919194 

8696233 
Attachment 1 

April 19, 2013 Page A-2 

Table 2-2. Immediate Receiving Waters Issued a Fish Consumption Advisory for Pollutants of 

COMID Cadmium Lead 

11627775 22326519 

1827714 

19443313 19443215 

6445736 

28125104 12919103 

9017879 3398586 

12169333 12169377 

3397270 

12176006 

9755486 

12026640 19443295 

1920666 8693517 6742054 

13208374 

2118222 

13357548 

3629181 2723115 7469410 4391311 

14519595 b 

4391297 6010286 6130891 9755532 
Attachment 1 

April 19, 2013 Page A-3 

Table 2-2. Immediate Receiving Waters Issued a Fish Consumption Advisory for Pollutants of 

COMID Cadmium Lead 

15383255 15379411 14519135 

901990011 

10110339 15434056 

1922898 3406069 

10164038 10110333 19453107 

3821113 

10157791 

3408277 

10161978 

1922872 

19455341 

1921988 1839957 3821343 3406123 

10161934 10109549 19443471 

1922224 

19455355 10164018 19455277 19442973 10110377 

3407479 

10164012 
Attachment 1 

April 19, 2013 Page A-4 

Table 2-2. Immediate Receiving Waters Issued a Fish Consumption Advisory for Pollutants of 

COMID Cadmium Lead 

1922018 

19442931 b 

6657975 1767108 1922510 4507392 8653054 

14523377 

13196020 b 

2649706 

12254504 20107243 

5218205 

21979923 

7591059 X X 5160339 6130213 

21642176 c 

19443249 15370990 10283906 

9071958 9223641 

Source: U.S. EPA, 2012a; U.S. EPA, 2012c; U.S. EPA, 2012f. Note: An “X” indicates that the immediate discharge zone (i.e., COMID) has been issued an advisory for the pollutant. a – The outfall coordinates and the receiving water name were claimed CBI in the Steam Electric Survey. However, EPA waived the claim coordinates and receiving water were identified in a publically available source [AES Eastern Energy LP, 2010]. 

b – Multiple plants discharge to this COMID. In the modeling analyses the loads from the two plants are combined and modeled as one planc – The outfall coordinates were claimed CBI in the Steam Electric Survey. However, EPA waived the CBI claim because the plant’s outfala publically available source [AEC Lowman Steam Plant, 2004].
Attachment 3 

April 19, 2013 Page A-5 Attachment 3: Drinking Water Resources Analysis 

Table 3-1. Plants Located in Close Proximity to Drinking Water Resources

[EPA sensitive information has been removed from this document.] 

Source: U.S. EPA, 2012a; U.S. EPA, 2012d; U.S. EPA, 2012e; U.S. EPA, 2012f.