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| Basin | Acres Assessed | Acres Impaired | TDS | Natural | Agricultural | Hydromodify | Urban Recreation | Landfill | Landfill | Point Source | Extraction | Resource Unknown |
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| Bill Williams | 13,501 | 5,015 | 5,015 | 5,000 | 5,000 | 50,00 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Colorado | 48,523 | 28,379 | 19,909 | 19,188 | 19,218 | 15,138 | 1,488 | 1,569 | 0 | 0 | 0 | 0 |
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| Little Colorado | 13,362 | 2,705 | 2,705 | NA | NA | NA | 0 | 0 | 0 | 0 | NA | 0 |
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| Lower Gila | 964 | 170 | 170 | 0 | 170 | 170 | 170 | 0 | 0 | 170 | 0 | 0 |
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| Middle Gila | 59,632 | 1,932 | 1,918 | 1,541 | 1,740 | 255 | 0 | 0 | 200 | 200 | 0 | 0 |
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| Upper Gila | 612 | 117 | 117 | 0 | 85 | 42 | 0 | 32 | 0 | 75 | 0 | 0 |
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| Salt | 24,297 | 14,353 | 14,353 | 14,253 | 13,158 | 1,195 | 0 | 0 | 0 | 50 | 0 | 0 |
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| San Pedro | 602 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Santa Cruz | 4,469 | 442 | 442 | 12 | 45 | 0 | 7 | 12 | 0 | 12 | 0 | 25 |
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| Verde | 6,322 | 2,067 | 2,067 | 2,015 | 11 | 41 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Total Acres | 172,284 | 55,180 | 46,696 | 42,009 | 39,427 | 21,841 | 1,715 | 1,613 | 200 | 507 | 0 | 125 |
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| Percent of Impaired | 85 | 95 | 90 | 50 | 4 | 4 | 0.4 | 1 | 0.3 | | | |
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