Coversheet: 

Tab Tab Description

Table 6-6 (1) This table presents a summary of the environmental improvements as a result of reduced 

arsenic discharges under Options 1, 2, 3, 4, and 5 in immediate receiving waters evaluated 

in the Environmental Assessment (EA).

Table 6-6 (2) This table presents a summary of the environmental improvements as a result of reduced 

arsenic discharges under Options 3a, 3b, and 4a in immediate receiving waters evaluated 

in the EA.

Table 6-7 (1) This table presents a summary of the environmental improvements as a result of reduced 

mercury discharges under Options 1, 2, 3, 4, and 5 in immediate receiving waters 

evaluated in the EA.

Table 6-7 (2) This table presents a summary of the environmental improvements as a result of reduced 

mercury discharges under Options 3a, 3b, and 4a in immediate receiving waters evaluated 

in the EA.

Table 6-8 (1) This table presents the percent reduction in the number of immediate receiving waters 

with selenium fish tissue concentrations above the literature values under Options 1, 2, 3, 

4, and 5.

Table 6-8 (2) This table presents the percent reduction in the number of immediate receiving waters 

with selenium fish tissue concentrations above the literature values under Options 3a, 3b, 

and 4a.

Table 6-9 (1) This table presents a summary of the environmental improvements as a result of reduced 

selenium discharges under Options 1, 2, 3, 4, and 5 in immediate receiving waters 

evaluated in the EA.

Table 6-9 (2) This table presents a summary of the environmental improvements as a result of reduced 

selenium discharges under Options 3a, 3b, and 4a in immediate receiving waters 

evaluated in the EA.

Table 6-10 (1) This table presents a summary of the environmental improvements as a result of reduced 

cadmium discharges under Options 1, 2, 3, 4, and 5 in immediate receiving waters 

evaluated in the EA.

Table 6-10 (2) This table presents a summary of the environmental improvements as a result of reduced 

cadmium discharges under Options 3a, 3b, and 4a in immediate receiving waters 

evaluated in the EA.

Table 6-11 (1) This table presents a summary of the environmental improvements as a result of reduced 

thallium discharges under Options 1, 2, 3, 4, and 5 in immediate receiving waters 

evaluated in the EA.

Table 6-11 (2) This table presents a summary of the environmental improvements as a result of reduced 

thallium discharges under Options 3a, 3b, and 4a in immediate receiving waters evaluated 

in the EA.

This spreadsheet summarizes the pollutant-specific environmental improvements estimated using the water 

quality model, wildlife model, and human health model for baseline and the regulatory options under the 

current profile. These results are presented in Section 6 (Environmental Improvements under the Proposed 

Regulatory Options) of the Final Environmental Assessment for the Proposed Effluent Limitations Guidelines 

and Standards for the Steam Electric Power Generating Point Source Category Report (DCN SE01995).
WQ Calcs This tab contains results from the Water Quality Comparision Databases (DCNs SE02999, 

SE03501, SE03502, SE03503, and SE03504) used to calculate water quality improvements 

presented in Tables 6-6 through 6-11.

WL Calcs This tab contains summary tables generated from the Wildlife Model Summary Tables 

Database (DCN SE03528) used to calculate wildlife improvements presented in Tables 6-6 

through 6-11.

HH Calcs This tab contains summary tables generated from the Human Health Model Summary 

Tables Database (DCN SE03529) used to calculate human health improvements presented 

in Tables 6-6 through 6-11.
Table 6-6. Key Environmental Improvements for Arsenic

Number Percent

Freshwater Acute NRWQC 6 2% 6 0% 6 0% 3 50% 1 83% 1 83%

Freshwater Chronic NRWQC 7 2% 7 0% 7 0% 3 57% 2 71% 2 71%

Human Health Water and Organism NRWQC 147 49% 147 0% 147 0% 120 18% 48 67% 50 66%

Human Health Organism Only NRWQC 96 32% 96 0% 96 0% 82 15% 28 71% 24 75%

Drinking Water MCL 19 6% 19 0% 19 0% 12 37% 2 89% 2 89%

Fish Ingestion NEHC for Mink 2 1% 2 0% 2 0% 1 50% 0 100% 0 100%

Fish Ingestion NEHC for Eagles 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%

Non-Cancer Reference Dose for Child (recreational) 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%

Non-Cancer Reference Dose for Adult (recreational) 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%

Non-Cancer Reference Dose for Child (subsistence) 3 1% 3 0% 3 0% 2 33% 1 67% 1 67%

Non-Cancer Reference Dose for Adult (subsistence) 2 1% 2 0% 2 0% 1 50% 0 100% 0 100%

Arsenic Cancer Risk for Child (recreational) 5 2% 5 0% 5 0% 2 60% 1 80% 1 80%

Arsenic Cancer Risk for Adult (recreational) 12 4% 12 0% 12 0% 7 42% 2 83% 2 83%

Arsenic Cancer Risk for Child (subsistence) 9 3% 9 0% 9 0% 5 44% 2 78% 2 78%

Arsenic Cancer Risk for Adult (subsistence) 27 9% 25 7% 25 7% 19 30% 3 89% 2 93%

Number of total plant-receiving waters

297

Option 5

Arsenic Percent Reduction Evaluation Criteria Modeled Plant-Receiving Waters 

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentration (NEHC)

Option 1 Option 2 Option 3 Option 4
Table 6-6. Key Environmental Improvements for Arsenic (Continued)

Number Percent Pollutants Option 3a Option 3b Option 4a

Freshwater Acute NRWQC 6 2% 4 4 33% 3 3 50% 2 2 67% Arsenic -0.1670 -0.1295 0.2720

Freshwater Chronic NRWQC 7 2% 4 4 43% 4 4 43% 2 2 71% Cadmium -0.2839 -0.2338 0.2823

Human Health Water and Organism NRWQC 147 49% 125 125 15% 123 123 16% 87 87 41% Chromium VI -0.0861 -0.0745 0.2920

Human Health Organism Only NRWQC 96 32% 84 84 13% 84 84 13% 60 60 38% Copper -0.1736 -0.1361 0.2948

Drinking Water MCL 19 6% 13 13 32% 13 13 32% 9 9 53% Lead -0.1687 -0.1315 0.3040

Mercury -0.2720 -0.2237 0.2859

Fish Ingestion NEHC for Mink 2 1% 1 1 50% 1 1 50% 1 1 50% Nickel -0.2908 -0.2410 0.2974

Fish Ingestion NEHC for Eagles 0 0% 0 0 0% 0 0 0% 0 0 0% Selenium -0.3014 -0.2513 0.2410

Thallium -0.2578 -0.2099 0.3069

Non-Cancer Reference Dose for Child (recreational) 0 0% 0 0 0% 0 0 0% 0 0 0% Zinc -0.2843 -0.2352 0.2865

Non-Cancer Reference Dose for Adult (recreational) 0 0% 0 0 0% 0 0 0% 0 0 0% AVERAGE: -0.2286 -0.1866 0.2863

Non-Cancer Reference Dose for Child (subsistence) 3 1% 2 2 33% 2 2 33% 1 1 67%

Non-Cancer Reference Dose for Adult (subsistence) 2 1% 1 1 50% 1 1 50% 1 1 50%

Arsenic Cancer Risk for Child (recreational) 5 2% 3 3 40% 2 2 60% 1 1 80%

Arsenic Cancer Risk for Adult (recreational) 12 4% 8 8 33% 8 8 33% 5 5 58%

Arsenic Cancer Risk for Child (subsistence) 9 3% 6 6 33% 6 6 33% 4 4 56%

Arsenic Cancer Risk for Adult (subsistence) 27 9% 20 20 26% 20 20 26% 14 14 48%

Number of total plant-receiving waters

297

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentration (NEHC)

Correction Factors Evaluation Criteria Modeled Plant-Receiving Waters Arsenic Percent Reduction 

Option 3a Option 3b Option 4a
Table 6-7. Key Environmental Improvements for Mercury

Number Percent

Freshwater Acute NRWQC 2 1% 1 50% 1 50% 0 100% 0 100% 0 100%

Freshwater Chronic NRWQC 2 1% 1 50% 1 50% 0 100% 0 100% 0 100%

Human Health Water and Organism NRWQC N/A N/A

Human Health Organism Only NRWQC N/A N/A

Drinking Water MCL 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%

Fish Ingestion NEHC for Mink 96 32% 78 19% 78 19% 64 33% 6 94% 6 94%

Fish Ingestion NEHC for Eagles 127 43% 109 14% 107 16% 94 26% 10 92% 10 92%

Non-Cancer Reference Dose for Child (recreational) 119 40% 101 15% 99 17% 85 29% 10 92% 8 93%

Non-Cancer Reference Dose for Adult (recreational) 124 42% 106 15% 103 17% 90 27% 10 92% 8 94%

Non-Cancer Reference Dose for Child (subsistence) 193 65% 175 9% 168 13% 150 22% 33 83% 27 86%

Non-Cancer Reference Dose for Adult (subsistence) 185 62% 166 10% 161 13% 143 23% 30 84% 23 88%

Number of total plant-receiving waters

297

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentration (NEHC)

Option 1 Option 2 Option 3 Option 4

N/A

N/A N/A

N/A

N/A

Option 5

N/A

N/A

Mercury Percent Reduction Evaluation Criteria Modeled Plant-Receiving Waters 

N/A

N/A

N/A
Table 6-7. Key Environmental Improvements for Mercury (Continued)

Number Percent Pollutants Option 3a Option 3b Option 4a

Freshwater Acute NRWQC 2 1% 1 1 50% 0 0 100% 0 0 100% Arsenic -0.1670 -0.1295 0.2720

Freshwater Chronic NRWQC 2 1% 1 1 50% 0 0 100% 0 0 100% Cadmium -0.2839 -0.2338 0.2823

Human Health Water and Organism NRWQC N/A N/A Chromium VI -0.0861 -0.0745 0.2920

Human Health Organism Only NRWQC N/A N/A Copper -0.1736 -0.1361 0.2948

Drinking Water MCL 0 0% 0 0 0% 0 0 0% 0 0 0% Lead -0.1687 -0.1315 0.3040

Mercury -0.2720 -0.2237 0.2859

Fish Ingestion NEHC for Mink 96 32% 73 73 24% 71 71 26% 46 46 52% Nickel -0.2908 -0.2410 0.2974

Fish Ingestion NEHC for Eagles 127 43% 103 103 19% 101 101 20% 67 67 47% Selenium -0.3014 -0.2513 0.2410

Thallium -0.2578 -0.2099 0.3069

Non-Cancer Reference Dose for Child (recreational) 119 40% 94 94 21% 93 93 22% 61 61 49% Zinc -0.2843 -0.2352 0.2865

Non-Cancer Reference Dose for Adult (recreational) 124 42% 99 99 20% 98 98 21% 64 64 48% AVERAGE: -0.2286 -0.1866 0.2863

Non-Cancer Reference Dose for Child (subsistence) 193 65% 162 162 16% 160 160 17% 107 107 45%

Non-Cancer Reference Dose for Adult (subsistence) 185 62% 154 154 17% 152 152 18% 102 102 45%

Number of total plant-receiving waters

297

Mercury Percent Reduction 

Option 3a Option 3b Option 4a

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentration (NEHC)

Correction Factors

N/A N/A N/A

N/A N/A N/A

Evaluation Criteria Modeled Plant-Receiving Waters 
Table 6-8. Comparison of Selenium Concentrations in Fish from Wildlife Model to Documented Literature Fish Impacts

Number Percent

Female Carcass = 2.86 53 18% 52 2% 39 26% 34 36% 16 53% 21 60%

Male Carcass = 2.63 54 18% 52 4% 39 28% 34 37% 16 70% 21 61%

Female Carcass = 2.74 40 13% 35 13% 23 43% 15 63% 8 80% 8 80%

Male Carcass = 4.64 36 12% 30 17% 20 44% 13 64% 6 83% 6 83%

Option 2 Option 3 Option 4 Option 5

Number of total plant-receiving waters

297

Documented Impact Selenium 

Concentration (μg/g)

Source: Baumann and Gillespie, 1986

Largemouth Bass/T4

Bluegill/T3

Evaluation Criteria Modeled Plant-Receiving Waters Selenium Percent Reduction

Option 1
Table 6-8. Comparison of Selenium Concentrations in Fish from Wildlife Model to Documented Literature Fish Impacts (Continued)

Number Percent Pollutants Option 3a Option 3b Option 4a

Female Carcass = 2.86 53 18% 40 40 25% 39 39 26% 26 26 51% Arsenic -0.1670 -0.1295 0.2720

Male Carcass = 2.63 54 18% 40 40 26% 39 39 28% 26 26 52% Cadmium -0.2839 -0.2338 0.2823

Female Carcass = 2.74 40 13% 23 23 43% 21 21 48% 11 11 73% Chromium VI -0.0861 -0.0745 0.2920

Male Carcass = 4.64 36 12% 20 20 44% 19 19 47% 10 10 72% Copper -0.1736 -0.1361 0.2948

Lead -0.1687 -0.1315 0.3040

Mercury -0.2720 -0.2237 0.2859

Nickel -0.2908 -0.2410 0.2974

Selenium -0.3014 -0.2513 0.2410

Thallium -0.2578 -0.2099 0.3069

Zinc -0.2843 -0.2352 0.2865

AVERAGE: -0.2286 -0.1866 0.2863

Option 3a Option 3b Option 4a

Largemouth Bass/T4

Bluegill/T3

Source: Baumann and Gillespie, 1986

Number of total plant-receiving waters

297

Correction Factors Evaluation Criteria Documented Impact Selenium 

Concentration (μg/g)

Modeled Plant-Receiving Waters Selenium Percent Reduction
Table 6-9. Key Environmental Improvements for Selenium

Number Percent

Freshwater Acute NRWQC N/A N/A

Freshwater Chronic NRWQC 42 14% 38 10% 26 38% 19 55% 11 74% 10 76%

Human Health Water and Organism NRWQC 13 4% 10 23% 7 46% 3 77% 2 85% 2 85%

Human Health Organism Only NRWQC 0 0% 0 0% 0 0% 0 0% 0 0% 0 0%

Drinking Water MCL 20 7% 17 15% 10 50% 5 75% 3 85% 3 85%

Fish Ingestion NEHC for Mink 48 16% 47 2% 34 29% 28 42% 13 73% 13 73%

Fish Ingestion NEHC for Eagles 46 15% 45 2% 32 30% 27 41% 12 74% 12 74%

Non-Cancer Reference Dose for Child (recreational) 25 8% 24 4% 14 44% 8 68% 3 88% 3 88%

Non-Cancer Reference Dose for Adult (recreational) 26 9% 25 4% 14 46% 8 69% 3 88% 3 88%

Non-Cancer Reference Dose for Child (subsistence) 45 15% 44 2% 30 33% 25 44% 11 76% 13 71%

Non-Cancer Reference Dose for Adult (subsistence) 44 15% 42 5% 29 34% 24 45% 11 75% 13 70%

Number of total plant-receiving waters

297

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentration (NEHC)

Option 1 Option 2 Option 3 Option 4

N/A N/A N/A

Option 5

N/A

Selenium Percent Reduction 

N/A

Evaluation Criteria Modeled Plant-Receiving Waters 
Table 6-9. Key Environmental Improvements for Selenium (Continued)

Number Percent Pollutants Option 3a Option 3b Option 4a

Freshwater Acute NRWQC N/A N/A Arsenic -0.1670 -0.1295 0.2720

Freshwater Chronic NRWQC 42 14% 26 26 38% 25 25 40% 14 14 67% Cadmium -0.2839 -0.2338 0.2823

Human Health Water and Organism NRWQC 13 4% 6 6 54% 6 6 54% 2 2 85% Chromium VI -0.0861 -0.0745 0.2920

Human Health Organism Only NRWQC 0 0% 0 0 0% 0 0 0% 0 0 0% Copper -0.1736 -0.1361 0.2948

Drinking Water MCL 20 7% 10 10 50% 9 9 55% 4 4 80% Lead -0.1687 -0.1315 0.3040

Mercury -0.2720 -0.2237 0.2859

Fish Ingestion NEHC for Mink 48 16% 34 34 29% 33 33 31% 21 21 56% Nickel -0.2908 -0.2410 0.2974

Fish Ingestion NEHC for Eagles 46 15% 33 33 28% 32 32 30% 20 20 57% Selenium -0.3014 -0.2513 0.2410

Thallium -0.2578 -0.2099 0.3069

Non-Cancer Reference Dose for Child (recreational) 25 8% 13 13 48% 12 12 52% 6 6 76% Zinc -0.2843 -0.2352 0.2865

Non-Cancer Reference Dose for Adult (recreational) 26 9% 13 13 50% 13 13 50% 6 6 77% AVERAGE: -0.2286 -0.1866 0.2863

Non-Cancer Reference Dose for Child (subsistence) 45 15% 31 31 31% 30 30 33% 19 19 58%

Non-Cancer Reference Dose for Adult (subsistence) 44 15% 30 30 32% 29 29 34% 18 18 59%

Number of total plant-receiving waters

297

Option 4a

Correction Factors

N/A N/A N/A

0.380952381

Evaluation Criteria Modeled Plant-Receiving Waters Selenium Percent Reduction 

Option 3a Option 3b
Table 6-10. Key Environmental Improvements for Cadmium

Number Percent

Freshwater Acute NRWQC 30 10%

Freshwater Chronic NRWQC 65 22%

Human Health Water and Organism NRWQC N/A N/A

Human Health Organism Only NRWQC N/A N/A

Drinking Water MCL 22 7%

Fish Ingestion NEHC for Mink 12 4%

Fish Ingestion NEHC for Eagles 9 3%

Non-Cancer Reference Dose for Child (recreational) 13 4%

Non-Cancer Reference Dose for Adult (recreational) 13 4%

Non-Cancer Reference Dose for Child (subsistence) 28 9%

Non-Cancer Reference Dose for Adult (subsistence) 26 9%

Number of total plant-receiving waters

297

Evaluation Criteria Modeled Plant-Receiving Waters 

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentratio
23 23% 23 23% 19 37% 5 83% 5

55 15% 54 17% 51 22% 13 80% 13

14 36% 14 36% 10 55% 3 86% 2

9 25% 8 33% 5 58% 2 83% 2

7 22% 7 22% 4 56% 2 78% 2

9 31% 9 31% 6 54% 2 85% 2

10 23% 10 23% 6 54% 2 85% 2

20 29% 19 32% 14 50% 3 89% 3

18 31% 17 35% 12 54% 3 88% 3

N/A N/A

Cadmium Percent Reduction 

Option 1 Option 2 Option 3 Option 4 Option 5

L), No Effect Hazard Concentration (NEHC)

N/A N/A N/A N/A N/A

N/A N/A N/A
83%

80%

91%

83%

78%

85%

85%

89%

88%

N/A

Option 5

N/A
Table 6-10. Key Environmental Improvements for Cadmium (Continued)

Number Percent

Freshwater Acute NRWQC 30 10%

Freshwater Chronic NRWQC 65 22%

Human Health Water and Organism NRWQC N/A N/A

Human Health Organism Only NRWQC N/A N/A

Drinking Water MCL 22 7%

Fish Ingestion NEHC for Mink 12 4%

Fish Ingestion NEHC for Eagles 9 3%

Non-Cancer Reference Dose for Child (recreational) 13 4%

Non-Cancer Reference Dose for Adult (recreational) 13 4%

Non-Cancer Reference Dose for Child (subsistence) 28 9%

Non-Cancer Reference Dose for Adult (subsistence) 26 9%

Number of total plant-receiving waters

297

Modeled Plant-Receiving Waters 

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentratio

Evaluation Criteria
22 22 27% 22 22 27% 14 14 53%

55 55 15% 54 54 17% 37 37 43%

13 13 41% 13 13 41% 7 7 68%

7 7 42% 7 7 42% 4 4 67%

5 5 44% 5 5 44% 3 3 67%

8 8 38% 8 8 38% 4 4 69%

8 8 38% 8 8 38% 4 4 69%

18 18 36% 17 17 39% 10 10 64%

16 16 38% 15 15 42% 9 9 65%

Cadmium Percent Reduction 

Option 3a Option 3b Option 4a

L), No Effect Hazard Concentration (NEHC)

N/A N/A N/A

N/A N/A N/A
Pollutants Option 3a Option 3b Option 4a

Arsenic -0.1670 -0.1295 0.2720

Cadmium -0.2839 -0.2338 0.2823

Chromium VI -0.0861 -0.0745 0.2920

Copper -0.1736 -0.1361 0.2948

Lead -0.1687 -0.1315 0.3040

Mercury -0.2720 -0.2237 0.2859

Nickel -0.2908 -0.2410 0.2974

Selenium -0.3014 -0.2513 0.2410

Thallium -0.2578 -0.2099 0.3069

Zinc -0.2843 -0.2352 0.2865

AVERAGE: -0.2286 -0.1866 0.2863

Correction Factors
Table 6-11. Key Environmental Improvements for Thallium

Number Percent

Freshwater Acute NRWQC N/A N/A

Freshwater Chronic NRWQC N/A N/A

Human Health Water and Organism NRWQC 82 28%

Human Health Organism Only NRWQC 74 25%

Drinking Water MCL 55 19%

Fish Ingestion NEHC for Mink N/A N/A

Fish Ingestion NEHC for Eagles N/A N/A

Non-Cancer Reference Dose for Child (recreational) 74 25%

Non-Cancer Reference Dose for Adult (recreational) 75 25%

Non-Cancer Reference Dose for Child (subsistence) 118 40%

Non-Cancer Reference Dose for Adult (subsistence) 109 37%

Number of total plant-receiving waters

297

Evaluation Criteria Modeled Plant-Receiving Waters 

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentratio
82 0% 79 4% 67 18% 13 84% 14

73 1% 71 4% 62 16% 10 86% 7

55 0% 52 5% 49 11% 4 93% 4

73 1% 71 4% 62 16% 10 86% 7

74 1% 72 4% 63 16% 10 87% 7

116 2% 111 6% 97 18% 24 80% 22

107 2% 104 5% 92 16% 19 83% 18

N/A N/A

Thallium Percent Reduction 

Option 1 Option 2 Option 3 Option 4 Option 5

N/A N/A

N/A

L), No Effect Hazard Concentration (NEHC)

N/A N/A N/A N/A

N/A

N/A N/A

N/A N/A

N/A N/A N/A N/A N/A

N/A
83%

91%

93%

91%

91%

81%

83%

Option 5

N/A

N/A

N/A

N/A
Table 6-11. Key Environmental Improvements for Thallium (Continued)

Number Percent

Freshwater Acute NRWQC N/A N/A

Freshwater Chronic NRWQC N/A N/A

Human Health Water and Organism NRWQC 82 28%

Human Health Organism Only NRWQC 74 25%

Drinking Water MCL 55 19%

Fish Ingestion NEHC for Mink N/A N/A

Fish Ingestion NEHC for Eagles N/A N/A

Non-Cancer Reference Dose for Child (recreational) 74 25%

Non-Cancer Reference Dose for Adult (recreational) 75 25%

Non-Cancer Reference Dose for Child (subsistence) 118 40%

Non-Cancer Reference Dose for Adult (subsistence) 109 37%

Number of total plant-receiving waters

297

Evaluation Criteria

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentratio

Modeled Plant-Receiving Waters 
71 71 13% 70 70 15% 46 46 44%

65 65 12% 65 65 12% 43 43 42%

51 51 7% 50 50 9% 34 34 38%

65 65 12% 65 65 12% 43 43 42%

66 66 12% 66 66 12% 44 44 41%

102 102 14% 101 101 14% 67 67 43%

96 96 12% 96 96 12% 64 64 41%

N/A N/A N/A

N/A N/A N/A

N/A N/A N/A

L), No Effect Hazard Concentration (NEHC)

N/A N/A N/A

Thallium Percent Reduction 

Option 3a Option 3b Option 4a
Pollutants Option 3a Option 3b Option 4a

Arsenic -0.1670 -0.1295 0.2720

Cadmium -0.2839 -0.2338 0.2823

Chromium VI -0.0861 -0.0745 0.2920

Copper -0.1736 -0.1361 0.2948

Lead -0.1687 -0.1315 0.3040

Mercury -0.2720 -0.2237 0.2859

Nickel -0.2908 -0.2410 0.2974

Selenium -0.3014 -0.2513 0.2410

Thallium -0.2578 -0.2099 0.3069

Zinc -0.2843 -0.2352 0.2865

AVERAGE: -0.2286 -0.1866 0.2863

Correction Factors
Database: CBI_Water Quality Comparison Database_ScnX.accdb

Sum of Exceedances_Baseline_002a_FW Acute Counts

Sum of Exceedances_Scenario_002a_FW Acute Counts

FW Acute Counts

Scenario SumOfExceed_FW_Acute_Diss_As

Baseline 6

Scenario SumOfExceed_FW_Acute_Diss_As

Scenario A 6

Scenario SumOfExceed_FW_Acute_Diss_As

Scenario E 6

Scenario SumOfExceed_FW_Acute_Diss_As

Scenario F 3

Scenario SumOfExceed_FW_Acute_Diss_As

Scenario I 1

Scenario SumOfExceed_FW_Acute_Diss_As

Scenario K 1

Database: CBI_Water Quality Comparison Database_ScnX.accdb

Sum of Exceedances_Baseline_002b_FW Chronic Counts

Sum of Exceedances_Scenario_002b_FW Chronic Counts

FW Chronic Counts

Scenario SumOfExceed_FW_Chro_Diss_As

Baseline 7

Scenario SumOfExceed_FW_Chro_Diss_As

Scenario A 7

Scenario SumOfExceed_FW_Chro_Diss_As

Scenario E 7

Scenario SumOfExceed_FW_Chro_Diss_As

Scenario F 3

Scenario SumOfExceed_FW_Chro_Diss_As

Scenario I 2

Scenario SumOfExceed_FW_Chro_Diss_As

Scenario K 2

Database: CBI_Water Quality Comparison Database_ScnX.accdb

Sum of Exceedances_Baseline_002c_HH WO Counts

Sum of Exceedances_Scenario_002c_HH WO Counts

HH WO Counts

Scenario SumOfExceed_HH_WO_Total_As

Baseline 147

Scenario SumOfExceed_HH_WO_Total_As

Scenario A 147

Scenario SumOfExceed_HH_WO_Total_As

Scenario E 147

Scenario SumOfExceed_HH_WO_Total_As

Scenario F 120
Scenario SumOfExceed_HH_WO_Total_As

Scenario I 48

Scenario SumOfExceed_HH_WO_Total_As

Scenario K 50

Database: CBI_Water Quality Comparison Database_ScnX.accdb

Sum of Exceedances_Baseline_002d_HH O Counts

Sum of Exceedances_Scenario_002d_HH O Counts

HH O Counts

Scenario SumOfExceed_HH_O_Total_As

Baseline 96

Scenario SumOfExceed_HH_O_Total_As

Scenario A 96

Scenario SumOfExceed_HH_O_Total_As

Scenario E 96

Scenario SumOfExceed_HH_O_Total_As

Scenario F 82

Scenario SumOfExceed_HH_O_Total_As

Scenario I 28

Scenario SumOfExceed_HH_O_Total_As

Scenario K 24

Database: CBI_Water Quality Comparison Database_ScnX.accdb

Sum of Exceedances_Baseline_002e_MCL Counts

Sum of Exceedances_Scenario_002e_MCL Counts

MCL Counts

Scenario SumOfExceed_MCL_Total_Se

Baseline 20

Scenario SumOfExceed_MCL_Total_Se

Scenario A 17

Scenario SumOfExceed_MCL_Total_Se

Scenario E 10

Scenario SumOfExceed_MCL_Total_Se

Scenario F 5

Scenario SumOfExceed_MCL_Total_Se

Scenario I 3

Scenario SumOfExceed_MCL_Total_Se

Scenario K 3
SumOfExceed_FW_Acute_Diss_Cd SumOfExceed_FW_Acute_Diss_CrVI

30 7

SumOfExceed_FW_Acute_Diss_Cd SumOfExceed_FW_Acute_Diss_CrVI

23 7

SumOfExceed_FW_Acute_Diss_Cd SumOfExceed_FW_Acute_Diss_CrVI

23 7

SumOfExceed_FW_Acute_Diss_Cd SumOfExceed_FW_Acute_Diss_CrVI

19 3

SumOfExceed_FW_Acute_Diss_Cd SumOfExceed_FW_Acute_Diss_CrVI

5 1

SumOfExceed_FW_Acute_Diss_Cd SumOfExceed_FW_Acute_Diss_CrVI

5 1

SumOfExceed_FW_Chro_Diss_Cd SumOfExceed_FW_Chro_Diss_CrVI

65 8

SumOfExceed_FW_Chro_Diss_Cd SumOfExceed_FW_Chro_Diss_CrVI

55 8

SumOfExceed_FW_Chro_Diss_Cd SumOfExceed_FW_Chro_Diss_CrVI

54 7

SumOfExceed_FW_Chro_Diss_Cd SumOfExceed_FW_Chro_Diss_CrVI

51 4

SumOfExceed_FW_Chro_Diss_Cd SumOfExceed_FW_Chro_Diss_CrVI

13 1

SumOfExceed_FW_Chro_Diss_Cd SumOfExceed_FW_Chro_Diss_CrVI

13 1

SumOfExceed_HH_WO_Total_Cu SumOfExceed_HH_WO_Total_Ni

1 7

SumOfExceed_HH_WO_Total_Cu SumOfExceed_HH_WO_Total_Ni

1 5

SumOfExceed_HH_WO_Total_Cu SumOfExceed_HH_WO_Total_Ni

1 5

SumOfExceed_HH_WO_Total_Cu SumOfExceed_HH_WO_Total_Ni

0 4
SumOfExceed_HH_WO_Total_Cu SumOfExceed_HH_WO_Total_Ni

0 1

SumOfExceed_HH_WO_Total_Cu SumOfExceed_HH_WO_Total_Ni

0 1

SumOfExceed_HH_O_Total_Ni SumOfExceed_HH_O_Total_Se

0 0

SumOfExceed_HH_O_Total_Ni SumOfExceed_HH_O_Total_Se

0 0

SumOfExceed_HH_O_Total_Ni SumOfExceed_HH_O_Total_Se

0 0

SumOfExceed_HH_O_Total_Ni SumOfExceed_HH_O_Total_Se

0 0

SumOfExceed_HH_O_Total_Ni SumOfExceed_HH_O_Total_Se

0 0

SumOfExceed_HH_O_Total_Ni SumOfExceed_HH_O_Total_Se

0 0

SumOfExceed_MCL_Total_As SumOfExceed_MCL_Total_Hg

19 0

SumOfExceed_MCL_Total_As SumOfExceed_MCL_Total_Hg

19 0

SumOfExceed_MCL_Total_As SumOfExceed_MCL_Total_Hg

19 0

SumOfExceed_MCL_Total_As SumOfExceed_MCL_Total_Hg

12 0

SumOfExceed_MCL_Total_As SumOfExceed_MCL_Total_Hg

2 0

SumOfExceed_MCL_Total_As SumOfExceed_MCL_Total_Hg

2 0
SumOfExceed_FW_Acute_Diss_Cu SumOfExceed_FW_Acute_Diss_Pb

18 9

SumOfExceed_FW_Acute_Diss_Cu SumOfExceed_FW_Acute_Diss_Pb

16 9

SumOfExceed_FW_Acute_Diss_Cu SumOfExceed_FW_Acute_Diss_Pb

16 9

SumOfExceed_FW_Acute_Diss_Cu SumOfExceed_FW_Acute_Diss_Pb

11 6

SumOfExceed_FW_Acute_Diss_Cu SumOfExceed_FW_Acute_Diss_Pb

2 1

SumOfExceed_FW_Acute_Diss_Cu SumOfExceed_FW_Acute_Diss_Pb

2 1

SumOfExceed_FW_Chro_Diss_Cu SumOfExceed_FW_Chro_Diss_Pb

21 31

SumOfExceed_FW_Chro_Diss_Cu SumOfExceed_FW_Chro_Diss_Pb

19 29

SumOfExceed_FW_Chro_Diss_Cu SumOfExceed_FW_Chro_Diss_Pb

19 29

SumOfExceed_FW_Chro_Diss_Cu SumOfExceed_FW_Chro_Diss_Pb

14 25

SumOfExceed_FW_Chro_Diss_Cu SumOfExceed_FW_Chro_Diss_Pb

2 2

SumOfExceed_FW_Chro_Diss_Cu SumOfExceed_FW_Chro_Diss_Pb

2 2

SumOfExceed_HH_WO_Total_Tl SumOfExceed_HH_WO_Total_Se

82 13

SumOfExceed_HH_WO_Total_Tl SumOfExceed_HH_WO_Total_Se

82 10

SumOfExceed_HH_WO_Total_Tl SumOfExceed_HH_WO_Total_Se

79 7

SumOfExceed_HH_WO_Total_Tl SumOfExceed_HH_WO_Total_Se

67 3
SumOfExceed_HH_WO_Total_Tl SumOfExceed_HH_WO_Total_Se

13 2

SumOfExceed_HH_WO_Total_Tl SumOfExceed_HH_WO_Total_Se

14 2

SumOfExceed_HH_O_Total_Tl SumOfExceed_HH_O_Total_Zn

74 0

SumOfExceed_HH_O_Total_Tl SumOfExceed_HH_O_Total_Zn

73 0

SumOfExceed_HH_O_Total_Tl SumOfExceed_HH_O_Total_Zn

71 0

SumOfExceed_HH_O_Total_Tl SumOfExceed_HH_O_Total_Zn

62 0

SumOfExceed_HH_O_Total_Tl SumOfExceed_HH_O_Total_Zn

10 0

SumOfExceed_HH_O_Total_Tl SumOfExceed_HH_O_Total_Zn

7 0

SumOfExceed_MCL_Total_Cr SumOfExceed_TT_Total_Cu

2 1

SumOfExceed_MCL_Total_Cr SumOfExceed_TT_Total_Cu

2 1

SumOfExceed_MCL_Total_Cr SumOfExceed_TT_Total_Cu

2 1

SumOfExceed_MCL_Total_Cr SumOfExceed_TT_Total_Cu

1 0

SumOfExceed_MCL_Total_Cr SumOfExceed_TT_Total_Cu

1 0

SumOfExceed_MCL_Total_Cr SumOfExceed_TT_Total_Cu

1 0
SumOfExceed_FW_Acute_Diss_Hg SumOfExceed_FW_Acute_Diss_Ni

2 8

SumOfExceed_FW_Acute_Diss_Hg SumOfExceed_FW_Acute_Diss_Ni

1 5

SumOfExceed_FW_Acute_Diss_Hg SumOfExceed_FW_Acute_Diss_Ni

1 5

SumOfExceed_FW_Acute_Diss_Hg SumOfExceed_FW_Acute_Diss_Ni

0 4

SumOfExceed_FW_Acute_Diss_Hg SumOfExceed_FW_Acute_Diss_Ni

0 1

SumOfExceed_FW_Acute_Diss_Hg SumOfExceed_FW_Acute_Diss_Ni

0 1

SumOfExceed_FW_Chro_Diss_Hg SumOfExceed_FW_Chro_Diss_Ni

2 24

SumOfExceed_FW_Chro_Diss_Hg SumOfExceed_FW_Chro_Diss_Ni

1 17

SumOfExceed_FW_Chro_Diss_Hg SumOfExceed_FW_Chro_Diss_Ni

1 17

SumOfExceed_FW_Chro_Diss_Hg SumOfExceed_FW_Chro_Diss_Ni

0 13

SumOfExceed_FW_Chro_Diss_Hg SumOfExceed_FW_Chro_Diss_Ni

0 2

SumOfExceed_FW_Chro_Diss_Hg SumOfExceed_FW_Chro_Diss_Ni

0 2

SumOfExceed_HH_WO_Total_Zn

1

SumOfExceed_HH_WO_Total_Zn

1

SumOfExceed_HH_WO_Total_Zn

1

SumOfExceed_HH_WO_Total_Zn

1
SumOfExceed_HH_WO_Total_Zn

0

SumOfExceed_HH_WO_Total_Zn

0

SumOfExceed_MCL_Total_Cd SumOfExceed_TT_Total_Pb

22 16

SumOfExceed_MCL_Total_Cd SumOfExceed_TT_Total_Pb

14 16

SumOfExceed_MCL_Total_Cd SumOfExceed_TT_Total_Pb

14 16

SumOfExceed_MCL_Total_Cd SumOfExceed_TT_Total_Pb

10 11

SumOfExceed_MCL_Total_Cd SumOfExceed_TT_Total_Pb

3 2

SumOfExceed_MCL_Total_Cd SumOfExceed_TT_Total_Pb

2 2
SumOfExceed_FW_Acute_Diss_Zn

16

SumOfExceed_FW_Acute_Diss_Zn

12

SumOfExceed_FW_Acute_Diss_Zn

12

SumOfExceed_FW_Acute_Diss_Zn

8

SumOfExceed_FW_Acute_Diss_Zn

2

SumOfExceed_FW_Acute_Diss_Zn

2

SumOfExceed_FW_Chro_Total_Se SumOfExceed_FW_Chro_Diss_Zn

42 16

SumOfExceed_FW_Chro_Total_Se SumOfExceed_FW_Chro_Diss_Zn

38 12

SumOfExceed_FW_Chro_Total_Se SumOfExceed_FW_Chro_Diss_Zn

26 12

SumOfExceed_FW_Chro_Total_Se SumOfExceed_FW_Chro_Diss_Zn

19 8

SumOfExceed_FW_Chro_Total_Se SumOfExceed_FW_Chro_Diss_Zn

11 2

SumOfExceed_FW_Chro_Total_Se SumOfExceed_FW_Chro_Diss_Zn

10 2
SumOfExceed_MCL_Total_Tl

55

SumOfExceed_MCL_Total_Tl

55

SumOfExceed_MCL_Total_Tl

52

SumOfExceed_MCL_Total_Tl

49

SumOfExceed_MCL_Total_Tl

4

SumOfExceed_MCL_Total_Tl

4
Table 11. Number of Plant-Receiving Waters that Exceed Wildlife Fish Ingestion Hazard Quotients for Mink, by Pollutant

Baseline Option 1 Option 2 Option 3 Option 4

Total Arsenic 2 2 2 1 0

Total Cadmium 12 9 8 5 2

Chromium VI 0 0 0 0 0

Total Copper 0 0 0 0 0

Total Lead 1 1 1 0 0

Total Mercury 96 78 78 64 6

Total Nickel 0 0 0 0 0

Total Selenium 48 47 34 28 13

Total Thalliumb

NC NC NC NC NC

Total Zinc 2 2 2 1 0

Table 12. Number of Plant-Receiving Waters that Exceed Wildlife Fish Ingestion Hazard Quotients for Eagles, by Pollutant

Baseline Option 1 Option 2 Option 3 Option 4

Total Arsenic 0 0 0 0 0

Total Cadmium 9 7 7 4 2

Chromium VI 0 0 0 0 0

Total Copper 0 0 0 0 0

Total Lead 3 3 3 2 1

Total Mercury 127 109 107 94 10

Total Nickel 0 0 0 0 0

Total Selenium 46 45 32 27 12

Total Thalliumb

NC NC NC NC NC

Total Zinc 11 8 8 4 2

Pollutants

Number (%) of Plant-Receiving Waters with HQmink >1

Number (%) of Plant-Receiving Waters with HQeagle >1

Pollutants
or Mink, by Pollutant

Option 5

0

2

0

0

0

6

0

13

NC

0

or Eagles, by Pollutant

Option 5

0

2

0

0

1

10

0

12

NC

2
Table 7. Number of Plant/Receiving Waters Exceeding Human Health Evaluation Criteria (Oral Reference Doses) by Polluta

Baseline Option 1

1 Child 1 to <2 yrs (recreational) 0 0

2 Child 2 to <3 yrs (recreational) 0 0

3 Child 3 to <6 yrs (recreational) 0 0

4 Child 6 to <11 yrs (recreational) 0 0

5 Child 11 to <16 yrs (recreational) 0 0

6 Child 16 to <21 yrs (recreational) 0 0

7 Adult (recreational) 0 0

8 Child 1 to <2 yrs (subsistence) 2 2

9 Child 2 to <3 yrs (subsistence) 2 2

10 Child 3 to <6 yrs (subsistence) 3 3

11 Child 6 to <11 yrs (subsistence) 2 2

12 Child 11 to <16 yrs (subsistence) 0 0

13 Child 16 to <21 yrs (subsistence) 0 0

14 Adult (subsistence) 2 2

Total for Arsenic 3 3

1 Child 1 to <2 yrs (recreational) 13 9

2 Child 2 to <3 yrs (recreational) 13 9

3 Child 3 to <6 yrs (recreational) 12 9

4 Child 6 to <11 yrs (recreational) 11 8

5 Child 11 to <16 yrs (recreational) 11 8

6 Child 16 to <21 yrs (recreational) 11 8

7 Adult (recreational) 13 10

8 Child 1 to <2 yrs (subsistence) 27 19

9 Child 2 to <3 yrs (subsistence) 27 19

10 Child 3 to <6 yrs (subsistence) 28 20

11 Child 6 to <11 yrs (subsistence) 26 18

12 Child 11 to <16 yrs (subsistence) 22 14

13 Child 16 to <21 yrs (subsistence) 22 14

14 Adult (subsistence) 26 18

Total for Cadmium 28 20

1 Child 1 to <2 yrs (recreational) 119 101

2 Child 2 to <3 yrs (recreational) 119 101

3 Child 3 to <6 yrs (recreational) 115 97

4 Child 6 to <11 yrs (recreational) 111 93

5 Child 11 to <16 yrs (recreational) 99 82

6 Child 16 to <21 yrs (recreational) 99 82

7 Adult (recreational) 124 106

8 Child 1 to <2 yrs (subsistence) 189 171

9 Child 2 to <3 yrs (subsistence) 189 171

10 Child 3 to <6 yrs (subsistence) 193 175

Number (%) of Plant-Receiving Waters where HQ>1 

Cohort ID Cohort Description

Arsenic

Cadmium

Mercury
11 Child 6 to <11 yrs (subsistence) 185 166

12 Child 11 to <16 yrs (subsistence) 164 147

13 Child 16 to <21 yrs (subsistence) 164 147

14 Adult (subsistence) 185 166

Total for Mercury 193 175

1 Child 1 to <2 yrs (recreational) 25 24 2 Child 2 to <3 yrs (recreational) 25 24 3 Child 3 to <6 yrs (recreational) 25 23 4 Child 6 to <11 yrs (recreational) 25 21 5 Child 11 to <16 yrs (recreational) 23 18 6 Child 16 to <21 yrs (recreational) 23 18 7 Adult (recreational) 26 25 8 Child 1 to <2 yrs (subsistence) 44 42 9 Child 2 to <3 yrs (subsistence) 44 42

10 Child 3 to <6 yrs (subsistence) 45 44

11 Child 6 to <11 yrs (subsistence) 44 42

12 Child 11 to <16 yrs (subsistence) 40 35

13 Child 16 to <21 yrs (subsistence) 40 35

14 Adult (subsistence) 44 42

Total for Selenium 45 44

1 Child 1 to <2 yrs (recreational) 74 73 2 Child 2 to <3 yrs (recreational) 74 73 3 Child 3 to <6 yrs (recreational) 73 73 4 Child 6 to <11 yrs (recreational) 71 71 5 Child 11 to <16 yrs (recreational) 65 63 6 Child 16 to <21 yrs (recreational) 65 63 7 Adult (recreational) 75 74 8 Child 1 to <2 yrs (subsistence) 114 112 9 Child 2 to <3 yrs (subsistence) 114 112

10 Child 3 to <6 yrs (subsistence) 118 116

11 Child 6 to <11 yrs (subsistence) 109 107

12 Child 11 to <16 yrs (subsistence) 94 92

13 Child 16 to <21 yrs (subsistence) 94 92

14 Adult (subsistence) 109 107

Total for Thallium 118 116

1 Child 1 to <2 yrs (recreational)11

2 Child 2 to <3 yrs (recreational)11

3 Child 3 to <6 yrs (recreational)11

4 Child 6 to <11 yrs (recreational)11

5 Child 11 to <16 yrs (recreational)00

6 Child 16 to <21 yrs (recreational)00

7 Adult (recreational)11

8 Child 1 to <2 yrs (subsistence)86

Selenium

Thallium

Zinc
9 Child 2 to <3 yrs (subsistence) 8 6

10 Child 3 to <6 yrs (subsistence) 10 8

11 Child 6 to <11 yrs (subsistence) 8 6

12 Child 11 to <16 yrs (subsistence) 8 6

13 Child 16 to <21 yrs (subsistence) 8 6

14 Adult (subsistence) 8 6

Total for Zinc 10 8

Baseline Option 1

5 5

12 12

9 9

27 25

Number (%) of Plant-Receiving Waters whe

Cohort Description

Child (recreational)

Adult (recreational)

Child (subsistence)

Adult (subsistence)

Table 11. Total Number of Plant/Receiving Waters Exceeding Human Health Evaluation Criteria (Life-time Excess Cancer Ri
eria (Oral Reference Doses) by Pollutant

Option 2 Option 3 Option 4 Option 5

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

0 0 0 0

2 1 0 0

2 1 0 0

3 2 1 1

2 1 0 0

0 0 0 0

0 0 0 0

2 1 0 0

3 2 1 1

9 6 2 2

9 6 2 2

9 6 2 2

8 5 2 2

8 5 2 2

8 5 2 2

10 6 2 2

18 13 3 3

18 13 3 3

19 14 3 3

17 12 3 3

14 10 3 2

14 10 3 2

17 12 3 3

19 14 3 3

99 85 10 8

99 85 10 8

95 80 9 8

91 76 8 6

82 67 6 4

82 67 6 4

103 90 10 8

165 147 32 25

165 147 32 25

168 150 33 27

f Plant-Receiving Waters where HQ>1 for Non-Cancer Reference Doses
161 143 30 23

141 121 25 19

141 121 25 19

161 143 30 23

168 150 33 27

14833

13733

12633

11633

10533

10533

14833

29 24 11 13

29 24 11 13

30 25 11 13

29 24 11 13

23 1588

23 1588

29 24 11 13

30 25 11 13

71 62 107

71 62 107

69 6176

68 6076

62 5566

62 5566

72 63 107

108 94 20 20

108 94 21 20

111 97 24 22

104 92 19 18

91 81 17 15

91 81 17 15

104 92 19 18

111 97 24 22 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 6 3 2 2
6 3 2 2

8 4 2 2

6 3 2 2

6 3 1 1

6 3 1 1

6 3 2 2

8 4 2 2

Option 2 Option 3 Option 4 Option 5

5 2 1 1

12 7 2 2

9 5 2 2

25 19 3 2

ber (%) of Plant-Receiving Waters where LECR>1 Exceeds 10-6

on Criteria (Life-time Excess Cancer Risk) for Arsenic