**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% 12018% 48 67% 5066% Human Health Organism Only NRWQC 96 32% 96 0% 96 0% 82 15% 28 71% 2475% 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% 0100% 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% 0100%

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% 0100% Freshwater Chronic NRWQC 2 1% 1 50% 1 50% 0 100% 0 100% 0100% 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%10716% 94 26% 10 92% 1092%

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% 10615%103 17% 90 27% 10 92% 8 94% Non-Cancer Reference Dose for Child (subsistence) 193 65% 175 9% 16813%15022% 33 83% 2786% Non-Cancer Reference Dose for Adult (subsistence) 185 62% 16610%161 13%14323% 30 84% 2388%

**Number of total plant-receiving waters**

297 National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentration (NEHC) **Option 4 Option 3**  **Option 2 Option 1** 

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 10120% 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 16017%107 10745% Non-Cancer Reference Dose for Adult (subsistence) 185 62% 154 15417%152 152 18%102 10245%

**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% 1076% 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% 1373% Fish Ingestion NEHC for Eagles 46 15% 45 2% 32 30% 27 41% 12 74% 1274%

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% 1371% Non-Cancer Reference Dose for Adult (subsistence) 44 15% 42 5% 29 34% 24 45% 11 75% 1370%

**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 Concentration (NEHC)2323%2323%1937% 5 83% 5

5515%5417%5122%1380%13

1436%1436%1055% 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 1023%1023% 6 54% 2 85% 2 2029%1932%1450% 3 89% 3 1831%1735%1254% 3 88% 3 N/A N/A **Cadmium Percent Reduction Option 1**  **Option 2 Option 3**  **Option 4 Option 5** 

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), No Effect Hazard Concentration (NEHC) N/A N/A N/A N/A N/A N/A N/A N/A83%

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 Concentration (NEHC)

**Evaluation Criteria**22 2227%22 2227%14 1453%

55 5515%54 5417%37 3743%

13 1341%13 1341% 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 1836%17 1739%10 1064% 16 1638%15 1542% 9 9 65% **Cadmium Percent Reduction Option 3a**  **Option 3b Option 4a** 

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), 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 Concentration (NEHC)82 0% 79 4% 6718%1384%14

73 1% 71 4% 6216%1086% 7 55 0% 52 5% 4911% 4 93% 4

73 1% 71 4% 6216%1086% 7 74 1% 72 4% 6316%1087% 7 1162%1116% 9718%2480%22 1072%1045% 9216%1983%18 N/A N/A

**Thallium Percent Reduction Option 1**  **Option 2 Option 3**  **Option 4 Option 5** 

N/A N/A

N/A

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), 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/A83%

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 Concentration (NEHC) **Modeled Plant-Receiving Waters**71 7113%70 7015%46 4644%

65 6512%65 6512%43 4342% 51 51 7% 50 50 9% 34 3438%

65 6512%65 6512%43 4342% 66 6612%66 6612%44 4441% 10210214%10110114%67 6743% 96 9612%96 9612%64 6441%

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

N/A N/A N/A

National Recommended Water Quality Criteria (NRWQC), Maximum Contaminant Level (MCL), 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 120Scenario 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 3SumOfExceed_FW_Acute_Diss_CdSumOfExceed_FW_Acute_Diss_CrVI 30 7 SumOfExceed_FW_Acute_Diss_CdSumOfExceed_FW_Acute_Diss_CrVI 23 7 SumOfExceed_FW_Acute_Diss_CdSumOfExceed_FW_Acute_Diss_CrVI 23 7 SumOfExceed_FW_Acute_Diss_CdSumOfExceed_FW_Acute_Diss_CrVI 19 3 SumOfExceed_FW_Acute_Diss_CdSumOfExceed_FW_Acute_Diss_CrVI 5 1 SumOfExceed_FW_Acute_Diss_CdSumOfExceed_FW_Acute_Diss_CrVI 5 1

SumOfExceed_FW_Chro_Diss_CdSumOfExceed_FW_Chro_Diss_CrVI 65 8 SumOfExceed_FW_Chro_Diss_CdSumOfExceed_FW_Chro_Diss_CrVI 55 8 SumOfExceed_FW_Chro_Diss_CdSumOfExceed_FW_Chro_Diss_CrVI 54 7 SumOfExceed_FW_Chro_Diss_CdSumOfExceed_FW_Chro_Diss_CrVI 51 4 SumOfExceed_FW_Chro_Diss_CdSumOfExceed_FW_Chro_Diss_CrVI 13 1 SumOfExceed_FW_Chro_Diss_CdSumOfExceed_FW_Chro_Diss_CrVI 13 1

SumOfExceed_HH_WO_Total_CuSumOfExceed_HH_WO_Total_Ni 1 7 SumOfExceed_HH_WO_Total_CuSumOfExceed_HH_WO_Total_Ni 1 5 SumOfExceed_HH_WO_Total_CuSumOfExceed_HH_WO_Total_Ni 1 5 SumOfExceed_HH_WO_Total_CuSumOfExceed_HH_WO_Total_Ni 0 4SumOfExceed_HH_WO_Total_CuSumOfExceed_HH_WO_Total_Ni 0 1 SumOfExceed_HH_WO_Total_CuSumOfExceed_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 0SumOfExceed_FW_Acute_Diss_CuSumOfExceed_FW_Acute_Diss_Pb 18 9 SumOfExceed_FW_Acute_Diss_CuSumOfExceed_FW_Acute_Diss_Pb 16 9 SumOfExceed_FW_Acute_Diss_CuSumOfExceed_FW_Acute_Diss_Pb 16 9 SumOfExceed_FW_Acute_Diss_CuSumOfExceed_FW_Acute_Diss_Pb 11 6 SumOfExceed_FW_Acute_Diss_CuSumOfExceed_FW_Acute_Diss_Pb 2 1 SumOfExceed_FW_Acute_Diss_CuSumOfExceed_FW_Acute_Diss_Pb 2 1

SumOfExceed_FW_Chro_Diss_CuSumOfExceed_FW_Chro_Diss_Pb 21 31 SumOfExceed_FW_Chro_Diss_CuSumOfExceed_FW_Chro_Diss_Pb 19 29 SumOfExceed_FW_Chro_Diss_CuSumOfExceed_FW_Chro_Diss_Pb 19 29 SumOfExceed_FW_Chro_Diss_CuSumOfExceed_FW_Chro_Diss_Pb 14 25 SumOfExceed_FW_Chro_Diss_CuSumOfExceed_FW_Chro_Diss_Pb 2 2 SumOfExceed_FW_Chro_Diss_CuSumOfExceed_FW_Chro_Diss_Pb 2 2

SumOfExceed_HH_WO_Total_TlSumOfExceed_HH_WO_Total_Se 82 13 SumOfExceed_HH_WO_Total_TlSumOfExceed_HH_WO_Total_Se 82 10 SumOfExceed_HH_WO_Total_TlSumOfExceed_HH_WO_Total_Se 79 7 SumOfExceed_HH_WO_Total_TlSumOfExceed_HH_WO_Total_Se 67 3SumOfExceed_HH_WO_Total_TlSumOfExceed_HH_WO_Total_Se 13 2 SumOfExceed_HH_WO_Total_TlSumOfExceed_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 0SumOfExceed_FW_Acute_Diss_HgSumOfExceed_FW_Acute_Diss_Ni 2 8 SumOfExceed_FW_Acute_Diss_HgSumOfExceed_FW_Acute_Diss_Ni 1 5 SumOfExceed_FW_Acute_Diss_HgSumOfExceed_FW_Acute_Diss_Ni 1 5 SumOfExceed_FW_Acute_Diss_HgSumOfExceed_FW_Acute_Diss_Ni 0 4 SumOfExceed_FW_Acute_Diss_HgSumOfExceed_FW_Acute_Diss_Ni 0 1 SumOfExceed_FW_Acute_Diss_HgSumOfExceed_FW_Acute_Diss_Ni 0 1

SumOfExceed_FW_Chro_Diss_HgSumOfExceed_FW_Chro_Diss_Ni 2 24 SumOfExceed_FW_Chro_Diss_HgSumOfExceed_FW_Chro_Diss_Ni 1 17 SumOfExceed_FW_Chro_Diss_HgSumOfExceed_FW_Chro_Diss_Ni 1 17 SumOfExceed_FW_Chro_Diss_HgSumOfExceed_FW_Chro_Diss_Ni 0 13 SumOfExceed_FW_Chro_Diss_HgSumOfExceed_FW_Chro_Diss_Ni 0 2 SumOfExceed_FW_Chro_Diss_HgSumOfExceed_FW_Chro_Diss_Ni 0 2

SumOfExceed_HH_WO_Total_Zn1 SumOfExceed_HH_WO_Total_Zn1 SumOfExceed_HH_WO_Total_Zn1 SumOfExceed_HH_WO_Total_Zn1SumOfExceed_HH_WO_Total_Zn0

SumOfExceed_HH_WO_Total_Zn0

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 2SumOfExceed_FW_Acute_Diss_Zn 16 SumOfExceed_FW_Acute_Diss_Zn 12 SumOfExceed_FW_Acute_Diss_Zn 12 SumOfExceed_FW_Acute_Diss_Zn8 SumOfExceed_FW_Acute_Diss_Zn2 SumOfExceed_FW_Acute_Diss_Zn2

SumOfExceed_FW_Chro_Total_SeSumOfExceed_FW_Chro_Diss_Zn 42 16 SumOfExceed_FW_Chro_Total_SeSumOfExceed_FW_Chro_Diss_Zn 38 12 SumOfExceed_FW_Chro_Total_SeSumOfExceed_FW_Chro_Diss_Zn 26 12 SumOfExceed_FW_Chro_Total_SeSumOfExceed_FW_Chro_Diss_Zn 19 8 SumOfExceed_FW_Chro_Total_SeSumOfExceed_FW_Chro_Diss_Zn 11 2 SumOfExceed_FW_Chro_Total_SeSumOfExceed_FW_Chro_Diss_Zn 10 2SumOfExceed_MCL_Total_Tl55

SumOfExceed_MCL_Total_Tl55 SumOfExceed_MCL_Total_Tl52 SumOfExceed_MCL_Total_Tl49 SumOfExceed_MCL_Total_Tl4 SumOfExceed_MCL_Total_Tl4**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** **Table 11. Number of Plant-Receiving Waters that Exceed Wildlife Fish Ingestion Hazard Quotients for Mink, by Pollutant**

**Option 5** 0 2 0 0 0 6 0 13 NC 0
**Table 12. Number of Plant-Receiving Waters that Exceed Wildlife Fish Ingestion Hazard Quotients for 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 Pollutant**

**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 for Non-Cancer Reference Doses 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) 1 1 2 Child 2 to <3 yrs (recreational) 1 1 3 Child 3 to <6 yrs (recreational) 1 1 4 Child 6 to <11 yrs (recreational) 1 1 5 Child 11 to <16 yrs (recreational) 0 0 6 Child 16 to <21 yrs (recreational) 0 0 7 Adult (recreational) 1 1 8 Child 1 to <2 yrs (subsistence) 8 6 **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 where LECR>1 Exceeds 10 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 Risk) for Arsenic Table 7. Number of Plant/Receiving Waters Exceeding Human Health Evaluation Criteria (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 **Number (%) of 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** 

14 8 3 3 13 7 3 3 12 6 3 3 11 6 3 3 10 5 3 3 10 5 3 3 14 8 3 3 29 24 11 13 29 24 11 13 30 25 11 13 29 24 11 13 23 15 8 8 23 15 8 8 29 24 11 13 **30 25**  **11 13** 

71 62 10 7 71 62 10 7 69 61 7 6 68 60 7 6 62 55 6 6 62 55 6 6 72 63 10 7 108 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 26 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 **Number (%) of Plant-Receiving Waters where LECR>1 Exceeds 10 -6**  **Table 11. Total Number of Plant/Receiving Waters Exceeding Human Health Evaluation Criteria (Life-time Excess Cancer Risk) for Arsenic**