Table 2.
Estimated annual fecal coliform loadings to streams and from different land use categories.
| FC Sources | Chippewa Watershed | Tye Watershed | ||
|---|---|---|---|---|
| FC loading (1012 cfu yr−1) | % Contribution | FC loading (1012 cfu yr−1) | % Contribution | |
| Direct Loading to streams1 | 507 | ~1% | 559 | ~1% |
| Diffuse Loading to land (NPS) | ||||
| Cropland | 4123 | 5% | 367 | <1% |
| Pasture | 77,799 | 87% | 63,404 | 92% |
| Residential2 | 6353 | 7% | 3161 | 5% |
| Forest/Other | 136 | <1% | 1613 | 2% |
| Total | 88,918 | 68,704 | ||
1
Includes discharges from points sources (including permitted WWTPs) and direct stream discharges from livestock, wildlife and residential houses without ISTS or sewer connections.
2
Residential includes ISTS and pet waste
Note: Wildlife contributions are uniformly distributed across the watersheds. Forested loading is from wildlife only.