## MEMORANDUM

TO: Steam Electric Point Source Category ELG Rulemaking Record

FROM: Jill Lucy , ERG

DATE: September 2 9 , 2015

SUBJECT: Proximity Analysis Methodology (DCN SE0 44 7 8 )

ERG supported t he U.S. Environmental Protection Agency (EPA) in the devel opment of

final effluent limitations guidelines and standards (ELGs) for the Steam Electric Power

Generating Point Source Category (40 CFR Part 423). ERG completed environmental

assessment (EA) analyses to evaluate environmental and human health impacts un der current

( i.e. , baseline) discharge practices and potential improvement s associated with the r egulatory

options (Options A, B, C, D, and E)

. 1 

### This memorandum documents the methodology and

resources used in the EA for identifying surface waters that rece ive 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.

 Sole

- source aquifers.

 Great Lakes watershed.

 Chesa peake Bay watershed.

 Threatened and endangered species habitats.

The methodology used to identify sensitive environments is the same used for the

proposed steam electric ELGs. See the April 13, 2013 ERG memorandum, “ Proximity Analyses

Methodology ” (DCN SE 03575) for further details on impaired waters, fish consumption

advisories and drinking water intakes . This memorandum documents updates made for the final

ste am electric EA proximity analyse s and the re sources ERG d eveloped to complete the

analyse s.

1 During development of the final rule, EPA decided not to base the final rule on Option F for existing sources due primarily t o

the high cost of that Option, particularly in light of the costs associated with other rulemakings expected to im pact the steam

electric power generating industry (see Section VIII.C.1 of the preamble). As a result, EPA chose not to conduct particular

analyses for Option F to the same extent that it did for some of the other options considered.

### Memorandu m

September 29, 2015

Page 2

ERG p erformed quantitative analyses under two separate industry baseline scopes:

1. The “With CCR” scope accounts for the Coal Combustion Residuals (CCR) rulemaking:

222 immediate receiving waters included in the proximity analysis (195 steam electric

power plant s)

. See the EA Report for more details.

2. The “With CCR and CPP” scope accounts for both the CCR rulemaking and the Clean

Power Plan [Clean Air Act Section 111(d)]: 172 immediate receiving waters included in

proximity analysis used (148 steam electric powe r plants). See Appendix I of the EA

Report for more details.

1.0 D ATA 

### S OURCES



### ERG conducted the proximity analyses for impaired waters, fish consumption advisories,

and drinking water resources using Esri ArcGIS Desktop software and NHD Plus

- indexed

geographic al information system (GIS) datasets that document the location of the sen s itive

environments. ERG created a user

- defined buffer zone around each immediate receiving water

discharge point to identify those located in close proximity to sensitive environmen ts. Table 1

presents t he user

- defined buffer zones and GIS datasets used for each type of sensitive

environment

. See the April 13, 2013 ERG memorandum, “ Proximity Analyses Methodology ”

(DCN SE03575) for further details on th is data source and the steps ERG completed to identify

immediate receiving water discharge points and proximity to sensitive environments.

Table 1. Proximity Analyses Data Sources

– Impaired Waters, Fish Consumption

Advisories, and Drinking Water Resources

Sensitive

Environment GIS Dat a Source User

- Defined

Buffer Zone GIS Data

Type

Impaired Waters National 303(d) Listed Impaired Waters NHD

Indexed Dataset. Reach Address Database (RAD).

Extracted on August 4, 2014 . Available online at:

http://www.epa.gov/waters/data/downloads.html

. (DCN SE04544 ). 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 Cons umption

Advisories National Fish Consumption Advisories NHD Indexed

Dataset. RAD. Extracted on July 7, 2014 . Available

online at:

http://epamap32.epa.gov/radims/ . (DCN SE04545 ). 500 feet Line

(rivers);

Polygon

(lakes)

EPA National Listing of Fish Advisor ies (NLFA)

Database. (DCN SE03559) for lakes

. Drinking Water

Intakes and Public

Wells Drinking Water NHD Indexed Dataset. RAD. EPA

sensitive information. (DCN SE03560). 5 miles Point

### Memorandu m

September 29, 2015

Page 3

Table 1. Proximity Analyses Data Sources

– Impaired Waters, Fish Consumption

Advisories, and Drinking Water Resources

Sensitive

Environment GIS Dat a Source User

- Defined

Buffer Zone GIS Data

Type

Sole Source

Aquifers National Sole Source Aquifers NHD Indexed Datase t.

Extracted on June 2, 2014. Available online at:

http://catalog.data.gov/dataset/national

- sole

- source

aquifer

- gis

- layer

. (DCN SE04547 ). 5 miles Polygon

DCN

– Document control number.



### For the Great Lakes watershed and Chesapeake Bay watershed, ERG identified steam

electric power plants that discharge into these watersheds using the database, Final Steam EA

Proximity Analysis

- Great Lakes and Chesapeake Bay Watershed B oundaries GIS ( DCN

SE04548 )

. This is a g eodatabase representing watershed segments within the Great Lakes

watershed and the Chesapeake Bay watershed. ERG used this geodatabase to determine which

steam electric power plants in the EA scope (both “with CCR” and “with CCR and CPP”)

discharge to these watersheds. ERG obtained the Chesapeake Bay data from the Chesapeake Bay

Regional Watershed Model (CBRWM) and edited the geodatabase to remove watershed

segments from the adjacent states of New York, Pennsylvania, Maryland, West Virginia,

Delaware, Virginia, North Carolina, and Tennessee that are not in the Chesapeake Bay

watershed.

See the Benefits and Cost Analysis for the Effluent Limitations Guidelines and Standards

for the Steam Electric Power Generation Poin t Source Category (Benefits and Cost Analysis ),

( EPA

- 821

- R

- 15

- 005 ) for t he data sources used for the threatened and endangered species

habitats.

2.0 P ROXIMITY 

### A NALYSIS FOR 

### I MPAIRED 

### W ATERS



### A surface water is classified as a 303(d) impaired water when pollutant concentrations

exceed water quality standards and the surface water can no longer meet its designated use s ( e.g.

, drinking, re creation, and aquatic habitat). ERG created an MS AccessTM database that included

impaired water “ flags ” that denoted whether the immediate receiving water was located within

500 feet (buffer zone) of an impaired water. E RG reviewed the following 303(d) impairment

categories:

 Arsenic.

 Boron.

 Cadmium.

 Chlorides.

 Chromium.

 Copper.

 Lead.

 Manganese.  Mercury.

 Metals (not Mercury).

 Nutrie nts.

 Phosphorous.

 Selenium.

 Total dissolved solids.

 Zinc.

### Memorandu m

September 29, 2015

Page 4

Table 2 lists the resources that ERG created to document the identification of steam

electric power plants that discharge to immediate receiving waters that are sensitive

environment s (impaired waters).

Table 2

. Resources Developed for the Proximity Analyses

– Impaired Waters

DCN Title (Date) Description CBI a

SE04549 Final Steam EA Proximity

Analysis

– Compiled

Proximity Data (CCR)

(051215) Database used to identify sensitive environments and

compile data into the proximity input table used for the

water quality module of the IRW model. This version

accounts for the CCR rulemaking. Yes

SE04565 Final Steam EA Proximity

Analysis

– Compiled

Proximity Data (CCP)

(061515) Database used to identify sensitive environments and

compile data into the proximity input table used for the

water quality module of the IRW model. This version

accounts for the CCR and CPP rulemakings. Yes

SE04549A4 Final Steam EA Proximity

Analysis

- Impaired Waters

(CCR) (0512 15) Database used to identify the plants in the Final EA scope

that discharge to an impaired water for a pollutant of

interest. The analysis is based off of the data contained in

the National 303(d) Listed Impaired Waters NHD Indexed

Dataset and the Water Quality Assessment and Total

Maximum Daily Loads Information (ATTAINS)

Database. This version accounts for the CCR rulemaking. No

SE04565A4 Final Steam EA Proximity

Analysis

- Impaired Waters

(CPP) (061615) Database used to identify the plants in the Fina l EA scope

that discharge to an impaired water for a pollutant of

interest. The analysis is based off of the data contained in

the National 303(d) Listed Impaired Waters NHD Indexed

Dataset and the Water Quality Assessment and Total

Maximum Daily Loads Inf ormation (ATTAINS)

Database. This version accounts for the CCR and CPP

rulemakings. No

SE04604 Final Steam EA IRW Model

- Miscellaneous

Calculations for EA Report

(CCR) (0930115) Database used for miscellaneous calculations in support of

the Final EA Repo rt. This version accounts for the CCR

rulemaking. ERG used this database to identify the

number of impaired waters for a pollutant associated with

the evaluated wastestreams and to calculate pollutant

removals under the final rule. Yes

SE04608 Final Stea m EA IRW Model

- Miscellaneous

Calculations for Preamble

and EA Report (CPP)

( 0930115) Database used for miscellaneous calculations in support of

the Final EA Report. This version accounts for the CCR

and CPP rulemakings. ERG used this database to identify

the number of impaired waters for a pollutant associated

with the evaluated wastestreams and to calculate pollutant

removals under the final rule. Yes

SE06518 Pollutant Loadings to

Impaired Waters (082115) MS Excel spreadsheet that calculates the pollut ant loading

removals and percent reduction for impaired waters by

impairment category. No

IRW

– immediate receiving water.

a

– Record items containing CBI have been removed from the public record.



### The results of the proximity analysis for impaired waters are included in Section 3.4.3

, Section 7.4.1 , and Appendix I of the Environmental Assessment for the Effluent Limitations

Guidelines and Standards for the Steam Electric Power Generating Point Source Category (EA

Report) (EPA

- 821

- R

- 15

- 006 ) . Table A

- 1, in Attachment A of this memorandum , list s the steam

### Memorandu m

September 29, 2015

Page 5

electric power plants and immediate receiving waters located within 500 feet of an impaired

water. Table A

- 7 present s the COMIDs located within 500 feet of a water impaired by pollutant

of concern for the ev aluated wastestreams under the two baseline scopes

.

3.0 P ROXIMITY 

### A NALYSIS FOR 

### F ISH 

### C ONSUMPTION 

### A DVISORIES



### States, territories, and authorized tribes issue f ish consumption advisories when pollutant

concentrations in fish tissue are considered unsafe for consu mption [U.S. EPA, 201 1 ]. ERG

created an MS AccessTM database that included fish consumption advisory “flags” that denoted

whether the immediate receiving water was located within 500 feet (buffer zone) of a fish

consumption advisory water. ERG reviewed fish consumption advisories for arsenic, cadmium,

lead, mercury

, and selenium

.

Table 3 lists the resources that ERG created to document the identification of steam

electric power plants that discharge to immediate receiving waters that are sensitive

environm ent s (fish consumption advisory water s ).

Table 3

. Resources Developed for the Proximity Analyses

– Fish Consumption Advisories

DCN Title (Date) Description CBI a

SE04549 Final Steam EA Proximity

Analysis

– Compiled

Proximity Data (CCR)

(051215) Database used to identify sensitive environments and

compile data into the proximity input table used for

the water quality module of the IRW model. This

version accounts for the CCR rulemaking. Yes

SE04565 Final Steam EA Proximity

Analysis

– Compiled

Proximity Da ta (CCP)

(061515) Database used to identify sensitive environments and

compile data into the proximity input table used for

the water quality module of the IRW model. This

version accounts for the CCR and CPP rulemakings. Yes

SE04549A2 Final Steam EA Prox imity

Analysis

- Fish Advisories

(CCR) (051215) Database used to identify the plants in the Final EA

scope that discharge to a water with a fish

consumption advisory for a pollutant of interest. The

analysis is based off of the data contained in the

Nation al Fish Consumption Advisories NHD Indexed

Dataset and the EPA National Listing of Fish and

Wildlife Advisories (NLFWA) Database. This version

accounts for the CCR rulemaking. No

SE04565A2 Final Steam EA Proximity

Analysis

- Fish Advisories

(CPP) (061615) Database used to identify the plants in the Final EA

scope that discharge to a water with a fish

consumption advisory for a pollutant of interest. The

analysis is based off of the data contained in the

National Fish Consumption Advisories NHD Indexed

Data set and the EPA National Listing of Fish and

Wildlife Advisories (NLFWA) Database. This version

accounts for the CCR and CPP rulemakings. No

### Memorandu m

September 29, 2015

Page 6

Table 3

. Resources Developed for the Proximity Analyses

– Fish Consumption Advisories

DCN Title (Date) Description CBI a

SE04556A4 Final Steam EA IRW Model

- Wildlife and Human Health

Module

- Comparison

Database

- Option D (CCR)

(0527 15) Database used to compare the wildlife and human

health module results between baseline and Option D.

Generates inputs for the Wildlife Summary Table

Generator and the Human Health Summary Table

Generator. This version accounts for the CCR

rulemaking . E RG used this database to determine the

decrease in the number of immediate receiving waters

that would exceed a fish advisory screening value

under the final rule. b Yes

IRW

– immediate receiving water.

a

– Record items containing CBI have been removed fr om the public record.

b

– ERG identified 93 immediate receiving waters located within 500 feet of a fish consumption advisory for

mercury. ERG identified only one location within 500 feet of a fish consumption advisory for another pollutant,

lead; this loc ation also had an advisory for mercury. To determine if the mercury pollutant removals under the final

rule would indicate a decrease in potential fish advisories at those locations, ERG compared the calculate d fish

tissue concentrations from the IRW model : wildlife module [ see the ERG memorandum, “ Wildlife and Human

Health Modules Supporting Documentation ” (DCN SE04452 )] to fish advisory screening concentration for

recreational fishers, 0.40 parts per million [U.S. EPA, 2000].



### The results of the proximi ty analysis for fish consumption advisory waters are included in

Section 3.4.4

, Section 7.4. 3 , and Appendix I of the EA Report

. Table A

- 2, in Attachment A of

this memorandum, list s the steam electric power plants and immediate receiving waters located

with in 500 feet of a fish consumption advisory water

. Table A

- 8 present s the COMIDs located

within 500 feet of a fish consumption advisory by pollutant of concern for the evaluated

wastestreams under the two baseline scopes

.

4.0 P ROXIMITY 

### A NALYSIS FOR 

### D RINKING 

### W AT ER 

### R ESOURCES



### The proximity analysis included the following drinking water resources:

 Drinking water intakes

– drinking water sources that collect surface water through a

public water system. Intakes are protected under the Safe Drinking Water Act ( SDWA )

o f 1974 and its 1986 and 1996 amendments, which require delegated states and tribes to

perform routine testing to ensure that they meet state drinking water standards.

 Public wells

– drinking water sources that collect ground water through a public water

system. Public wells are protected under the SDWA, which requires delegated states and

tribes to perform routine testing to ensure that they meet state drinking water standards.

 Sole

- source aquifers

– drinking water sources that supply at least 50 percen t of the

drinking water consumed in the area overlying the aquifer. These areas can have no

reasonably available alternative drinking water source(s) if the aquifer were to become

contaminated.

### Memorandu m

September 29, 2015

Page 7

ERG created an MS AccessTM database that included drinking wat er resource “flags” that

denoted whether the immediate receiving water discharge was located within 5 miles of a

drinking water intake, public well, or sole

- source aquifer.

Table 4 lists the resources that ERG created to document the identification of st eam

electric power plants that discharge to immediate receiving waters within 5 miles of a drinking

water resource.

Table 4

. Resources Developed for the Proximity Analyses

– Drinking Water Resources

DCN Title (Date) Description CBI a

SE04549 Final Steam EA Proximity

Analysis

– Compiled

Proximity Data (CCR)

(051215) Database used to identify sensitive environments and

compile data into the proximity input table used for the

water quality module of the IRW model. This version

accounts for the CCR rulemaking

. b Yes

SE04565 Final Steam EA Proximity

Analysis

– Compiled

Proximity Data (CCP)

(061515) Database used to identify sensitive environments and

compile data into the proximity input table used for the

water quality module of the IRW model. This version

ac counts for the CCR and CPP rulemakings. b Yes

SE04549A1 Final Steam EA Proximity

Analysis

– Drinking Water

(CCR) (051215) Database used to identify the plants in the f inal EA scope

that discharge in close proximity to a drinking water intake

or public wel l. The analysis is based off of the data

contained in the National Drinking Water NHD Indexed

Dataset. This version accounts for the CCR rulemaking

. Yes

SE04565A1 Final Steam EA Proximity

Analysis

– Drinking Water

(CPP ) (061515) Database used to identify the plants in the f inal EA scope

that discharge in close proximity to a drinking water intake

or public well. The analysis is based off of the data

contained in the National Drinking Water NHD Indexed

Dataset. This version accounts for the CCR and CPP

rule makings

. Yes

SE04549A5 Final Steam EA Proximity

Analysis

- Sole Source

Aquifers (CCR) (051215) Database used to identify the plants in the Final EA scope

that discharge in close proximity to a sole source aquifer.

The analysis is based off of the data con tained in the

National Sole Source Aquifers NHD Indexed Dataset. This

version accounts for the CCR rulemaking. No

SE04565A5 Final Steam EA Proximity

Analysis

- Sole Source

Aquifers (CPP) (061615) Database used to identify the plants in the Final EA scope

that discharge in close proximity to a sole source aquifer.

The analysis is based off of the data contained in the

National Sole Source Aquifers NHD Indexed Dataset. This

version accounts for the CCR and CPP rulemakings. No

IRW

– immediate receiving water

.

a

– Record items containing CBI have been removed from the public record.

b

– ERG used the database to determine number of immediate receiving waters and steam electric power plants

within 5 miles of a drinking water resource. For the latter count, ERG r eviewed the COMIDs identified in the GIS

dataset to determine whether the same COMID represent ed multiple steam electric power plants

.



### The results of the proximity analysis for drinking water resources are included in Section

3.4.6 and Appendix I of the E A Report

. Table A

- 3 , in Attachment A of this memorandum , list s

the steam electric power plants and immediate receiving waters located within 5 miles of a

drinking water intake or public well. Tab le A

- 4 present s the steam electric power plants and

immediate receiving waters located within 5 miles of a sole

- source aquifer

.

### Memorandu m

September 29, 2015

Page 8

5.0 P ROXIMITY 

### A NALYSIS FOR THE 

### G REAT 

### L AKES AND 

### C HESAPEAKE 

### B AY 

### W ATERSHED S



### ERG created an MS AccessTM database that identified the steam electric power plants that

discharge into an immediate r eceiving water that is part of the Great Lakes or Chesapeake Bay

watersheds. Table 5 lists the resources that ERG created to document the identification of these

steam electric power plants and immediate receiving waters.

Table 5

. Resources Developed for t he Proximity Analyses

– Great Lakes and Chesapeake

Bay Watershed s

DCN Title (Date) Description CBI a

SE04549 Final Steam EA Proximity

Analysis

– Compiled

Proximity Data (CCR)

(051215) Database used to identify sensitive environments and

compile data into the proximity input table used for the

water quality module of the IRW model. This version

accounts for the CCR rulemaking. Yes

SE04565 Final Steam EA Proximity

Analysis

– Compiled

Proximity Data (CCP)

(061515) Database used to identify sensitive environ ments and

compile data into the proximity input table used for the

water quality module of the IRW model. This version

accounts for the CCR and CPP rulemakings. Yes

SE04549A3 Final Steam EA Proximity

Analysis

- Great Lakes and

Chesapeake Bay

Watersheds (C CR)

(051315) Database used to identify the plants in the Final EA scope

that discharge to the Great Lakes watershed or the

Chesapeake Bay watershed. The analysis is based off of

the data contained in the Great Lakes and Chesapeake Bay

Watershed Boundaries GIS geodatabase. This version

accounts for the CCR rulemaking. No

SE04565A3 Final Steam EA Proximity

Analysis

- Great Lakes and

Chesapeake Bay

Watersheds (CPP) (061615) Database used to identify the plants in the Final EA scope

that discharge to the Great Lakes watershed or the

Chesapeake Bay watershed. The analysis is based off of

the data contained in the Great Lakes and Chesapeake Bay

Watershed Boundaries GIS geodatabase. This version

accounts for the CCR and CPP rulemakings. No

SE04551 Final Steam EA Proximity

Analysis

- Great Lakes and

Chesapeake Bay Loads

(CCR) (051315) Database used to calculate the pollutant loadings

discharged from plants in the Final EA scope to the Great

Lakes watershed or the Chesapeake Bay watershed. This

version accounts for the CCR rulemaking. Yes

SE04567 Final Steam EA Proximity

Analysis

- Great Lakes and

Chesapeake Bay Loads

(CPP) (061715) Database used to calculate the pollutant loadings

discharged from plants in the Final EA scope to the Great

Lakes watershed or the Ches apeake Bay watershed. This

version accounts for the CCR and CPP rulemakings. Yes

SE04464 EA Loadings Analyses

Spreadsheet (MS Excel

File)

- with CCR (072415) As part of the EA, ERG evaluated the environmental

impact of pollutant loadings released under cu rrent ( i.e.

, baseline) discharge practices and assessed the potential

environmental improvement from pollutant loading

removals associated with the regulatory options (Options

A, B, C, D, and E). This version accounts for the CCR

rulemaking. Also see ERG m emorandum, “ Loadings

Analysis for the Steam Electric ELGs Environmental

Assessment ” (DCN SE04446)

. No

### Memorandu m

September 29, 2015

Page 9

Table 5

. Resources Developed for t he Proximity Analyses

– Great Lakes and Chesapeake

Bay Watershed s

DCN Title (Date) Description CBI a

SE04473 EA Loadings Analyses

Spreadsheet (MS Excel

File)

- with CCP (081315) As part of the EA, ERG evaluated the environmental

impact of pollutant loadi ngs released under current ( i.e.

, baseline) discharge practices and assessed the potential

environmental improvement from pollutant loading

removals associated with the regulatory options (Options

A, B, C, D, and E). This version accounts for the CCR and

C PP rulemakings. Also see ERG memorandum, “ Loadings

Analysis for the Steam Electric ELGs Environmental

Assessment ” (DCN SE04446). No

IRW

– immediate receiving water.

a

– Record items containing CBI have been removed from the public record.



### The results of the proximity analysis for the Great Lakes and Chesapeake Bay watersheds

are included in Section 3.4.1

, Section 7.4. 4 , and Appendix I of the EA Report

. Table A

- 5, in

Attachment A of this memorandum , list s the steam electric power plants discharging to

imme diate receiving waters within the Great Lakes watershed

. Table A

- 6 list s the steam electric

power plants discharging to immediate receiving waters within the Chesapeake Bay watershed

.

6.0 P ROXIMITY 

### A NALYSIS FOR 

### T HREATENED AND 

### E NDANGERED 

### S PECIES 

### H ABITATS



### See t he Benefits and Cost Analysis for details on the methodology used to evaluate

threatened and endangered species habitats. The results of the proximity analysis for threatened

and endangered species habitats are included in Section 3.4. 5 and Section 7.4.2 o f the EA

Report

.

7.0 R EFERENCES



### 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 Depar tment of Environmental Conservation

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

SE03893.

U.S. EPA

. 2000. Guidance for Assessing Chemical Contaminant Data for Uses in Fish

Advisories, Volume 1 . EPA 823

- B

- 00

- 007. Was hington, DC. (November). DCN SE01922.

U.S. EPA. 2011. Office of Science & Technology Annual Report, Calendar Year 2011

. EPA 820

-

R

- 12

- 006. Washington, DC. DCN SE01951.

### Attachment A

September 29, 2015

Page A

- 1

Attachment A. Steam Electric Power Plants and Immediate Receiving Waters included in

th e Proximity Analyse s

This attachment presents the COMIDs, steam electric power plants, and immediate

receiving waters identified as discharging to a sensitive environment. The sensitive enviro n ments

include impaired waters, fish consumption advisory water s, drinking water resources, Great

Lakes watershed, and Chesapeake Bay watershed. The attachment also details the pollutants

associated with the impaired waters and fish consumption advisories. The table includes the

steam electric power plants that are in cluded in the “With CCR” baseline scope. See the ERG

memorandum, “Water Quality Module: Plant and Receiving Water Characteristics” (DCN

SE04513 and DCN SE04538 ) to identify those steam electric power plants and immediate

receiving waters that are not inclu ded in the “With CCR and CPP” baseline scope.

Table A

- 1. Steam Electric Power Plants and Immediate Receiving Waters Located

within 500 Feet of an Impaired Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

381688 Muskogee Generat ing Station Arkansas River

18819844 Sheldon Station Big Blue River

1920740 JM Stuart Station Buzzardroost Creek

14787485 Will County Station Chicago Sanitary and Ship Canal

14643309 Bull Run Clinch River

7701182 Middletown Power LLC Connecticut River

6782121 Mount Tom Generating Company, LLC Connecticut River

22273458 Plant E C Gaston Coosa River

11884778 Cumberland Cumberland River

4481763 PSEG Mercer Generating Station Delaware River

4995391 Interstate Power and Light

- Ottumwa

Generating Statio n Des Moines River

10850250 River Rouge Power Plant Detroit River

10850256 Wyandotte Municipal Services

- Power Plant Detroit River

448630 Plant Crist Escambia River

12005077 Pulliam Fox River

22165396 Asheville Steam Electric Plant French Broad River

12245290 Eckert Station Grand River

9005799 J. B. Sims Generating Station Grand River

3886042 Miami Fort Station Great Miami River

15075546 Entergy Gulf States, LLC

- Roy S. Nelson

Station Houston River

13606204 E.D. Edwards Illinois River

13606224 Po werton Station Illinois River

13606886 Duck Creek Power Plant Illinois River

### Attachment A

September 29, 2015

Page A

- 2

Table A

- 1. Steam Electric Power Plants and Immediate Receiving Waters Located

within 500 Feet of an Impaired Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

14780202 Hennepin Power Station Illinois River

13608606 Havana Power Station Illinois River

10067405 Dominion

- Chesterfield Power Station James River

19315420 John E. Amos P lant Kanawha River

13437773 R. M. Schahfer Generating Station Kankakee River

3729559 Lawrence Energy Center Kansas River

19443313 OVEC

- Kyger Creek Station Kyger Creek

19443215 General James M. Gavin Kyger Creek

9840314 Dunkirk Generating Plant Lake Erie

30726982 Monroe Power Plant Lake Erie

9017879 James De Young Generating Station Lake Macatawa

12169377 Pleasant Prairie Power Plant Lake Michigan

3397270 NIPSCO Michigan City Generating Station Lake Michigan

3398586 NIPSCO Bailly Generating Stati on Lake Michigan

12169333 Oak Creek Power Plant Lake Michigan

15561361 AES

- Somerset Lake Ontario

12026640 Presque Isle Power Plant Lake Superior

11049576 Cheswick Power Station Little Deer Creek

397428 Flint Creek Power Plant Little Flint Creek

194 43295 OVEC

- Kyger Creek Station Little Kyger Creek

16883592 Manatee Little Manatee River

1920666 JM Stuart Station Little Three Mile Creek

880824 AmerenUE Sioux Power Plant Mississippi River

2118222 John P. Madgett Mississippi River

13208374 Genoa #3 Mississippi River

14807193 Louisa Generating Station Mississippi River

13211666 Interstate Power and Light

- Lansing

Generating Station Mississippi River

14809371 M.L. Kapp Generating Station Mississippi River

6966239 Interstate Power and Light

- Burl ington

Generating Station Mississippi River

14807223 Muscatine Power and Water Generating

Station Mississippi River

3629181 Rush Island Mississippi River

2723115 Sherburne County Generating Plant Mississippi River

### Attachment A

September 29, 2015

Page A

- 3

Table A

- 1. Steam Electric Power Plants and Immediate Receiving Waters Located

within 500 Feet of an Impaired Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

4391311 Sibley Generating Station Miss ouri River

6010286 Labadie Power Plant Missouri River

2255299 Iatan Generating Station Missouri River

17244416 a George Neal South Missouri River

2252949 Lake Road Generating Station Missouri River

7312385 Nebraska City Station Missouri River

1721946 8 North Omaha Station 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

15379411 Conesville Muskingum R iver

14519135 Milton R Young Station Nelson Lake

15569803 C R Huntley Generating Station Niagara River

10161934 Clifty Creek Station Ohio River

10157791 A. B. Brown Station Ohio River

10110339 F.B. Culley Generating Station Ohio River

1839957 Joppa S team Ohio River

1840007 Shawnee Ohio River

10110377 Elmer Smith Station Ohio River

15434056 Plesants Power Station Ohio River

19455355 Mitchell Plant Ohio River

10161978 Trimble County Ohio River

3821113 Bruce Mansfield Plant Ohio River

3821343 W. H . Sammis Plant Ohio River

3408277 Ghent Ohio River

19453107 Cardinal Ohio River

10164038 Mill Creek Ohio River

19442931 Mountaineer Plant Ohio River

3407479 East Bend Station Ohio River

10109549 Kenneth C. Coleman Station Ohio River

11908816 Chalk P oint Generating Station Patuxent River

4532873 Mirant Mid

- Atlantic, LLC Potomac River

4507392 Dickerson Generating Station Potomac River

3715680 Harrison Power Station Robinson Run

### Attachment A

September 29, 2015

Page A

- 4

Table A

- 1. Steam Electric Power Plants and Immediate Receiving Waters Located

within 500 Feet of an Impaired Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

951449 Comanche Station Saint Charles River

13196020 a Belle River Pow er Plant Saint Clair River

2649706 Allen S King Generating Plant Saint Croix River

12254504 Michigan South Central Power Agency Saint Joseph River

13565470 Kindcaid Generation, LLC Sangchris Lake

16665275 Seminole Generating Station St. Johns River

19 443421 General James M. Gavin Stingy Run

14365968 Mount Storm Power Station Stony River

13564578 Dallman Sugar Creek

397492 Flint Creek Power Plant SWEPCO Lake

3646684 Tecumseh Energy Center Tecumseh Creek

19646344 Widows Creek Tennessee River

194432 49 General James M. Gavin Turkey Run

22134501 Kingston Watts Bar Reservoir

3715694 Harrison Power Station West Fork River

7607261 Southwest Power Station Wilsons Creek

14732378 Wisconsin Public Service

- Weston Plant Wisconsin River

13633837 Wisconsin Power and Light

- Columba

Energy Center Wisconsin River

879898 Wood River Power Station Wood River

4343012 J.E. Corette Treatment Plant Yellowstone River

21871785 Lewis & Clark Station Yellowstone River

Source: DCN SE04549A4

.

a

– Two steam electric po wer plants discharge to this COMID. In the modeling analyses

, the loadings from the two

plants are combined and modeled as one receiving water while retaining the name of only one of the two plants

.



### Table A

- 2 . Steam Electric Power Plants and Immediate Rec eiving Waters Located

within 500 Feet of Fish Consumption Advisory Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

11050038 Cheswick Power Station Allegheny River

4742231 RRI Energy Keystone Generating Station Allegheny River

7589977 Asbury Power Plant Blackberry Creek

4754836 EME Homer City Generation L.P. Blacklick Creek

19451557 Cardinal Blockhouse Hollow Run

### Attachment A

September 29, 2015

Page A

- 5

Table A

- 2 . Steam Electric Power Plants and Immediate Rec eiving Waters Located

within 500 Feet of Fish Consumption Advisory Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

12035539 Cliffside Steam Station Broad River

1920740 JM Stuart Station Buzzardroost Creek

9756896 Allen Steam Station Catawba River

21979641 AES Cayuga LLC a Cayuga Lake

3291908 Georgia Power Company

- Plant Wansley Chattahoochee River

14787485 Will County Station Chicago Sanitary and Ship Canal

8151995 PPL Montour Chillisquaque Creek

7701182 Middletown Power LLC Connecticut River

6782121 Mount Tom Generating Company,LLC Connecticut River

9643641 Williams Station Cooper River

15823211 Plant Hammond Coosa River

4741469 RRI Energy Keystone Generating Station Crooked Creek

8679473 Belews Creek Steam Station Dan River

13437811 R. M. Schahfer Generating Station Davis Ditch

4481763 PSEG Mercer Generating Station Delaware River

10850256 Wyandotte Municipal Services

- Power Plant Detroit River

10850250 River Rouge Power Plant Detroit River

9673662 Cross Genera ting Station Diversion Canal

448630 Plant Crist Escambia River

6499098 Georgia Power Company

- Plant Bowen Etowah River

19455359 Mitchell Plant Fish Creek

12005077 Pulliam Fox River

22165396 Asheville Steam Electric Plant French Broad River

9005799 J . B. Sims Generating Station Grand River

12245290 Eckert Station Grand River

3886042 Miami Fort Station Great Miami River

11628855 Paradise Green River

11617335 b R D Green Green River

1827174 E.W. Brown Herrington Lake

16919194 Tampa Electric

- Big Bend Station Hillsborough Bay

8696233 Roxboro Steam Plant Hyco Lake

14780202 Hennepin Power Station Illinois River

11627767 Paradise Jacobs Creek

19315420 John E. Amos Plant Kanawha River

13437773 R. M. Schahfer Generating Station Kankakee River

1944 3313 OVEC

- Kyger Creek Station Kyger Creek

### Attachment A

September 29, 2015

Page A

- 6

Table A

- 2 . Steam Electric Power Plants and Immediate Rec eiving Waters Located

within 500 Feet of Fish Consumption Advisory Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

19443215 General James M. Gavin Kyger Creek

9840314 Dunkirk Generating Plant Lake Erie

6336412 Plant Scherer Lake Juliette

9017879 James De Young Generating Station Lake Macatawa

12169377 Pleasant Prairie Po wer Plant Lake Michigan

3397270 NIPSCO Michigan City Generating Station Lake Michigan

12169333 Oak Creek Power Plant Lake Michigan

3398586 NIPSCO Bailly Generating Station Lake Michigan

9755486 Marshall Steam Station Lake Norman

15561361 AES

- Somerse t Lake Ontario

12026640 Presque Isle Power Plant Lake Superior

18476493 Indianapolis Power & Light Company

-

Harding Street Station Lick Creek

18471122 Indianapolis Power & Light Company

-

Petersburg Generating Station Lick Creek

11049576 Cheswick Powe r Station Little Deer Creek

19443295 OVEC

- Kyger Creek Station Little Kyger Creek

16883592 Manatee Little Manatee River

1920666 JM Stuart Station Little Three Mile Creek

8693517 Mayo Electric Generating Plant Mayo Reservoir

6742054 PSNH

- Merrimack S tation Merrimack River

4461386 Associated Electric Cooperative, Inc.

Thomas Hill Energy Center Middle Fork Little Chariton River

14809371 M.L. Kapp Generating Station Mississippi River

13211666 Interstate Power and Light

- Lansing

Generating Station Mis sissippi River

3629181 Rush Island Mississippi River

880824 AmerenUE Sioux Power Plant Mississippi River

7469410 New Madrid Power Plant Mississippi River

14807223 Muscatine Power and Water Generating

Station Mississippi River

14807193 Louisa Generatin g Station Mississippi River

2723115 Sherburne County Generating Plant Mississippi River

6966239 Interstate Power and Light

- Burlington

Generating Station Mississippi River

13208374 Genoa #3 Mississippi River

2118222 John P. Madgett Mississippi River

14519595 b Leland Olds Station Missouri River

4391311 Sibley Generating Station Missouri River

### Attachment A

September 29, 2015

Page A

- 7

Table A

- 2 . Steam Electric Power Plants and Immediate Rec eiving Waters Located

within 500 Feet of Fish Consumption Advisory Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

7312385 Nebraska City Station Missouri River

17219468 North Omaha Station Missouri River

2255299 Iatan Generating Station Missouri River

6010286 Labadie Pow er Plant Missouri River

2252949 Lake Road Generating Station Missouri River

2333759 Montrose Generating Station Montrose Lake

6130891 Brayton Point Station Mount Hope Bay

15379411 Conesville Muskingum River

14519135 Milton R Young Station Nelson Lake

15569803 C R Huntley Generating Station Niagara River

901990011 Winyah Generating Station North Santee River

19453107 Cardinal Ohio River

3408277 Ghent Ohio River

1839957 Joppa Steam Ohio River

1921988 Dayton Power & Light, Killen Station Ohio River

3821343 W. H. Sammis Plant Ohio River

1922224 JM Stuart Station Ohio River

10164038 Mill Creek Ohio River

15434056 Plesants Power Station Ohio River

10157791 A. B. Brown Station Ohio River

3407479 East Bend Station Ohio River

19455355 Mitchell Plant Ohio River

10161978 Trimble County Ohio River

10161934 Clifty Creek Station Ohio River

1922898 W H Zimmer Station Ohio River

3406069 Miami Fort Station Ohio River

10110377 Elmer Smith Station Ohio River

10109549 Kenneth C. Coleman Station Ohio River

19442931 Mountaineer Plant Ohio River

10110339 F.B. Culley Generating Station Ohio River

3821113 Bruce Mansfield Plant Ohio River

1922018 EKPC Spurlock Station Ohio River

1840007 Shawnee Ohio River

11690558 Brandon Shores Patapsco River

11908816 Ch alk Point Generating Station Patuxent River

880570 AmerenUE Sioux Power Plant Poeling Lake

### Attachment A

September 29, 2015

Page A

- 8

Table A

- 2 . Steam Electric Power Plants and Immediate Rec eiving Waters Located

within 500 Feet of Fish Consumption Advisory Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

4532873 Mirant Mid

- Atlantic, LLC Potomac River

4507392 Dickerson Generating Station Potomac River

760540 Sikeston Power Station Richland Drainage Ditch 4

865305 4 Clover Power Station Roanoke River

14523377 R.M. Heskett Station Rock Haven Creek

13196020 b Belle River Power Plant Saint Clair River

2649706 Allen S King Generating Plant Saint Croix River

21979923 AES Greenidge LLC Seneca Lake

54396 Martin St Lu cie Canal

16665275 Seminole Generating Station St. Johns River

19443421 General James M. Gavin Stingy Run

4722211 PPL Brunner Island Susquehanna River

4518760 Sunbury Generation LP Susquehanna River

8152547 PPL Montour Susquehanna River

19646344 Wido ws Creek Tennessee River

21642176 Charles R. Lowman c 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

5161861 Columbia Municipal Power Plant Unnamed tributary to Bear 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 Generati ng Plant Van Buren Bay Creek

10209979 Cayuga Wabash River

11690522 Brandon Shores Wagner Plant Discharge Canal

9721753 Wateree Station Wateree River

22134501 Kingston Watts Bar Reservoir

14732378 Wisconsin Public Service

- Weston Plant Wisconsin River

### Attachment A

September 29, 2015

Page A

- 9

Table A

- 2 . Steam Electric Power Plants and Immediate Rec eiving Waters Located

within 500 Feet of Fish Consumption Advisory Water

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

13633837 Wisconsin Power and Light

- Columba

Energy Center Wisconsin River

Source: DCN SE04549A2.

a

– The outfall coordinates and the receiving water name were claimed CBI in the Steam Electric Survey. However,

EPA waived the claim because the plant’s o utfall coordinates and receiving water were identified in a publical l y

available source [AES Eastern Energy LP, 2010].

b

– Two steam electric power plants discharge to this COMID. In the modeling analyses

, the loadings from the two

plants are combined and modeled as one receiving water while retaining the name of only one of the two plants

.

c

– The outfall coordinates were claimed CBI in the Steam Electric Survey. However, EPA waived the CBI claim

because the plant’s outfall coordinates were identified in a publically available source [AEC Lowman Steam Plant,

2004].



### Table A

- 3 . Steam Electric Power Plants and Immediate Receiving Wat ers Located Within

5 M iles of a Drinking Water Intake or Public Well

COMID Steam Electric Power Plant Name Immediate Receivi ng

Water Name Drinking

Water

Intake Public

Well

(a) (a) (a) (a) (a)

Source: DCN SE04549A1.

a

– EPA sensitive information has been removed from this document.



### Table A

- 4 . Steam Electric Power Plants and Immediate Receiving Waters Located Within

5 M iles of a Sole

- Source Aquifer

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

6782121 Mount Tom Generating Company, LLC Connecticut River

4481763 PSEG Mercer Generating Station Delaware River

3886042 Miami Fort Station Great Miami River

15075546 Entergy Gulf States, LLC

- Roy S. Nelson Station Houston River

19918814 Brame Energy Center Jean De Jean, Bayou

3406069 Miami Fort Station Ohio River

4507392 Dickerson Generating Station Potomac River

54396 Martin St Lucie Canal

Source: DCN SE04549A5.

### Attachment A

September 29, 2015

Page A

- 10

Table A

- 5 . Steam Electric Power Plants and Immediate Receiving Waters Discharging into

the Great Lakes Watershed

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

21979641 a AES Cayuga LLC Cayuga Lake

10850250 River Ro uge Power Plant Detroit River

10850256 Wyandotte Municipal Services

- Power Plant Detroit River

10850286 Trenton Channel Power Plant Detroit River

12005077 Pulliam Fox River

9005799 J. B. Sims Generating Station Grand River

12245290 Eckert Station Grand River

9840314 Dunkirk Generating Plant Lake Erie

30726982 Monroe Power Plant Lake Erie

9017879 James De Young Generating Station Lake Macatawa

3397270 NIPSCO Michigan City Generating Station Lake Michigan

3398586 NIPSCO Bailly Generating Station Lake Michigan

9017399 JH Campbell Power Plant Lake Michigan

12169333 Oak Creek Power Plant Lake Michigan

12169377 Pleasant Prairie Power Plant Lake Michigan

12170709 Waukegan Station Lake Michigan

15561361 AES

- Somerset Lake Ontario

12026640 Presque Isl e Power Plant Lake Superior

15569803 C R Huntley Generating Station Niagara River

9017837 JH Campbell Power Plant Pigeon Lake

12927619 DE Karn Power Plant Saginaw Bay

13196020 b Belle River Power Plant Saint Clair River

12254504 Michigan South Central Power Agency Saint Joseph River

21979923 AES Greenidge LLC Seneca Lake

9840092 Dunkirk Generating Plant Van Buren Bay Creek

Source : DCN SE04549A3.

a

– The outfall coordinates and the receiving water name were claimed CBI in the Steam Electric Survey. H owever, EPA waived the claim because the plant’s outfall coordinates and receiving water were identified in a publically

available source [AES Eastern Energy LP, 2010].

b

– Two steam electric power plants discharge to this COMID. In the modeling analyses, the loadings from the two

plants are combined and modeled as one receiving water while retaining the name of only one of the two plants.

### Attachment A

September 29, 2015

Page A

- 11

Table A

- 6 . Steam Electric Power Plants and Immediate Receiving Waters Discharging into

the Chesapeake Bay Watershe d

COMID Steam Electric Power Plant Name Immediate Receiving Water Name

8151995 PPL Montour Chillisquaque Creek

14365710 Mount Storm Power Station Four Mile Run

10067405 Dominion

- Chesterfield Power Station James River

14365968 Mount Storm Power St ation Mount Storm Lake

11690558 Brandon Shores Patapsco River

11908816 Chalk Point Generating Station Patuxent River

4507392 Dickerson Generating Station Potomac River

4532873 Mirant Mid

- Atlantic, LLC Potomac River

14365968 Mount Storm Power Station S tony River

4722211 PPL Brunner Island Susquehanna River

8152547 PPL Montour Susquehanna River

4518760 Sunbury Generation LP Susquehanna River

11690522 Brandon Shores Wagner Plant Discharge Canal

Source : DCN SE04549A3.

### Attachment A

September 29, 2015

Page A

- 12

Table A

- 7 . Immediate Receiving Waters that are Impaired for Pollutants of Concern

COMID As B Cd C r C u Pb Hg M n Se Zn P Metals (not Hg) Nutrients TDS Chlorides

381688 X

18819844 X X

1920740

14787485 X X X

14643309

7701182

6782121

22273458

11884778

4481763 X

4995391

10850250 X

10850256 X

448630 X

12005077 X X

2 2165396

12245290 X

9005799 X

3886042

15075546 X X

13606204 X

13606224 X

13606886 X X X X

14780202 X

13608606 X X X X

### Attachment A

September 29, 2015

Page A

- 13

Table A

- 7 . Immediate Receiving Waters that are Impaired for Pollutants of Concern

COMID As B Cd C r C u Pb Hg M n Se Zn P Metals (not Hg) Nutrients TDS Chlorides

10067405

19315420

13437773

3729559 X X

19443313 X

19443215 X

9840314

30726982

9017879 X

12169377 X

3397270 X

3398586 X

12169333 X

15561361 X X

12026640 X

11049576 X X X

397428 X X

19443295 X

16883592 X

1920666

880824 X X

2118222 X

13208374 X

14807193

13211666 X

14809371 X X

### Attachment A

September 29, 2015

Page A

- 14

Table A

- 7 . Immediate Receiving Waters that are Impaired for Pollutants of Concern

COMID As B Cd C r C u Pb Hg M n Se Zn P Metals (not Hg) Nutrients TDS Chlorides

6966239 X X

14807223

3629181 X X

2723115

4391311

6010286

2255299

17244416 a

2252949

7312385

17219468

18522283 X

3768832

6130891 X

14365 968

15379411

14519135

15569803

10161934

10157791 X

10110339 X

1839957 X

1840007 X

10110377 X

15434056 X

19455355 X

### Attachment A

September 29, 2015

Page A

- 15

Table A

- 7 . Immediate Receiving Waters that are Impaired for Pollutants of Concern

COMID As B Cd C r C u Pb Hg M n Se Zn P Metals (not Hg) Nutrients TDS Chlorides

10161978

3821113 X

3821343 X

3408277

19453107 X

10164038

19442931 X

3407479

10109549 X

11908816 X

4532873 X

4507392 X

3715680 X X

951449 X X

13196020 a

2649706 X

12254504

13565470

16665275 X X X X X

19443421 X

14365968

13564578 X

397492 X X

3646684 X X

19646344 X

19443249 X

### Attachment A

September 29, 2015

Page A

- 16

Table A

- 7 . Immediate Receiving Waters that are Impaired for Pollutants of Concern

COMID As B Cd C r C u Pb Hg M n Se Zn P Metals (not Hg) Nutrients TDS Chlorides

22134501

3715694 X X

7607261

14732378 X

13633837 X

879898 X X X X X X

4343012 X X X

21871785 X X X X X X X

Source : DCN SE04549A4

. Note: An “X” indicates that the immediate discharge zone ( i.e. , COMID) is imp aired for the pollutant.

Acronyms /Abbreviations : As (arsenic); B (boron); Cd (cadmium); Cr (chromium); Cu (copper); Pb (lead); Hg (mercury); Mn (manganese); P (phosphorous); Se

(selenium); TDS (total dissolved solids) ; Zn (zinc)

.

a

– Two steam electric pow er plants discharge to this COMID. In the modeling analyses, the loadings from the two plants are combined and modeled as one

receiving water while retaining the name of only one of the two plants.

### Attachment A

September 29, 2015

Page A

- 17

Table A

- 8 . Immediate Receiving Waters that are Under a F ish Advisory for Pollutants

of Concern

COMID Lead Mercury

11050038

4742231

7589977

4754836

19451557 X

12035539 X

1920740 X

9756896 X

21979641 a X

3291908 X

14787485

8151995

7701182 X

6782121 X

964364 1 X

15823211 X

4741469

8679473 X

13437811

4481763 X

10850256 X

10850250 X

9673662 X

448630

6499098 X

19455359 X

12005077

22165396 X

9005799

12245290

3886042 X X

11628855 X

11617335 b X

18271 74 X

16919194 X

### Attachment A

September 29, 2015

Page A

- 18

Table A

- 8 . Immediate Receiving Waters that are Under a F ish Advisory for Pollutants

of Concern

COMID Lead Mercury

8696233 X

14780202

11627767 X

19315420

13437773

19443313 X

19443215 X

9840314

6336412 X

9017879 X

12169377 X

3397270 X

12169333 X

3398586 X

9755486 X

15561361

12026640 X

184 76493

18471122

11049576

19443295 X

16883592 X

1920666 X

8693517 X

6742054 X

4461386

14809371

13211666 X

3629181 X

880824

7469410 X

14807223

14807193

2723115 X

6966239

13208374 X

### Attachment A

September 29, 2015

Page A

- 19

Table A

- 8 . Immediate Receiving Waters that are Under a F ish Advisory for Pollutants

of Concern

COMID Lead Mercury

211 8222 X

14519595 b X

4391311 X

7312385

17219468

2255299 X

6010286 X

2252949 X

2333759

6130891 X

15379411 X

14519135 X

15569803

901990011 X

19453107 X

3408277 X

1839957 X

1921988 X

3821343 X

19 22224 X

10164038 X

15434056 X

10157791 X

3407479 X

19455355 X

10161978 X

10161934 X

1922898 X

3406069 X

10110377 X

10109549 X

19442931 X

10110339 X

3821113 X

1922018 X

1840007 X

### Attachment A

September 29, 2015

Page A

- 20

Table A

- 8 . Immediate Receiving Waters that are Under a F ish Advisory for Pollutants

of Concern

COMID Lead Mercury

11690558 X

11908816 X

880570

4532873 X

4507392 X

760540

8653054 X

14523377 X

13196020 b X

2649706 X

21979923 X

54396 X

16665275 X

19443421 X

4722211

4518760

8152547

19646344

21642176 c X

19443249 X

10286056

4752366

5161861

4752260

4754222

15370990 X

9840092

10209979

11690522 X

9721753

22134501

14732378

### Attachment A

September 29, 2015

Page A

- 21

Table A

- 8 . Immediate Receiving Waters that are Under a F ish Advisory for Pollutants

of Concern

COMID Lead Mercury

13633837

Source: DCN SE04549A2.

Note: An “X” indicates that the immediate discharge zone ( i.e. , COMID) has a fish consumption 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 because the plant’s outfall coordinates and receiving water were ident ified in a publically

available source [AES Eastern Energy LP, 2010].

b

– Two steam electric power plants discharge to this COMID. In the modeling analyses, the loadings from the two

plants are combined and modeled as one receiving water while retaining th e name of only one of the two plants.

c

– The outfall coordinates were claimed CBI in the Steam Electric Survey. However, EPA waived the CBI claim

because the plant’s outfall coordinates were identified in a publically available source [AEC Lowman Steam P lant,

2004].