Table 4-25, Page 51628
| Factor categories and factors | Maximum value | Value assigned |
|---|---|---|
| Drinking Water Threat | ||
| Likelihood of Release to Aquifer: | ||
| 1. Observed Release | 550 | —— |
| 2. Potential to Release: | ||
|
10 | —— |
|
10 | —— |
|
5 | —— |
|
35 | —— |
|
500 | —— |
| 3. Likelihood of Release (higher of lines 1 and 2e) | 550 | —— |
| Waste Characteristics: | ||
| 4. Toxicity/Mobility/Persistence | (a) | —— |
| 5. Hazardous Waste Quantity | (a) | —— |
| 6. Waste Characteristics | 100 | —— |
| Targets: | ||
| 7. Nearest Intake | 50 | —— |
| 8. Population | ||
|
(b) | —— |
|
(b) | —— |
|
(b) | —— |
|
—— | |
| 9. Resources | 5 | —— |
| 10. Targets (lines 7 + 8d + 9) | (b) | —— |
| Drinking Water Threat Score: | ||
| 11. Drinking Water Threat Score ([lines 3 x 6 x 10]/82,500, subject to a maximum of 100). | 100 | —— |
| Human Food Chain Threat | ||
| Likelihood of Release: | ||
| 12. Likelihood of Release (same value as line 3) | 550 | —— |
| Waste Characteristics: | ||
| 13. Toxicity/Mobility/Persistence/Bioaccumulation | (a) | —— |
| 14. Hazardous Waste Quantity | (a) | —— |
| 15. Waste Characteristic | 1,000 | —— |
| Targets: | ||
| 16. Food Chain Individual | 50 | —— |
| 17. Population: | ||
|
(b) | —— |
|
(b) | —— |
|
(b) | —— |
|
(b) | —— |
| 18. Targets (Lines 16 + 17d) | (b) | —— |
| Human Food Chain Threat Score: | ||
| 19. Human Food Chain Threat Score ([lines 12 x 15 x 18]/82, 500, subject to a maximum of 100). | 100 | —— |
| Environmental Threat | ||
| Likelihood of Release: | ||
| 20. Likelihood of Release (same value as line 3) | 550 | —— |
| Waste Characteristics: | ||
| 21. Ecosystem Toxicity/Mobility/Persistence/Bioaccumulation. | (a) | —— |
| 22. Hazardous Waste Quantity | (a) | —— |
| 23. Waste Characteristics | 1,000 | —— |
| Targets: | ||
| 24. Sensitive Environments: | ||
|
(b) | —— |
|
(b) | —— |
|
(b) | —— |
|
(b) | —— |
| 25. Targets (value from line 24d) | (b) | —— |
| Environmental Threat Score: | ||
| 26. Environmental Threat Score ([lines 20 x 23 x 25]/82, 500, subject to a maximum of 60). | 60 | —— |
| Ground Water to Surface Water Migration Component Score for a Watershed | ||
| 27. Watershed Scorec (lines 11 + 19 + 26, subject to a maximum of 100). | 100 | —— |
| 28. Component Score (Sgs)c (highest score from Line 27 for all watersheds evaluated, subject to a maximum of 100). | 100 | —— |
a Maximum value applies to waste characteristics category.
b Maximum value not applicable.
c Do not round to nearest integer.
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