WSSC Water Quality Monitoring
Here are the third round of results of WSSC's fecal bacteria monitoring tests which are required by the consent decree. The two Sligo Creek sites had the 6th and 9th most Enterococci bacteria of the 40 tested sites. These results are from this WSSC report.
September 20, 2007 |
The Maryland state standards for Enterococci bacteria:
|
| Stream Site | Fecal Bacteria Results Enterococcus CFU/100mL | Bacterial Source Testing | ||||||
|---|---|---|---|---|---|---|---|---|
| Human | Avian | Canine | Deer | Horse | Miscellaneous Wildlife | Non-human Unknown | ||
| 1). Northwest Branch (downstream) | 18 | Too few bacteria for bacteria source determination | ||||||
| 2). Lower Anacostia (upstream) | 23 | 0% | 37% | 6% | 41% | 16% | ||
| 3). Indian Creek (downstream) | 28 | 0% | 28% | 11% | 6% | 15% | 23% | 17% |
| 4). Northeast Branch (downstream) | 33 | 0% | 34% | 11% | 38% | 17% | ||
| 5). Northeast Branch (upstream) | 45 | 0% | 36% | 7% | 13% | 33% | 11% | |
| 6). Piscataway (upstream) | 92 | 16% | 35% | 13% | 24% | 12% | ||
| 7). Paint Branch (downstream) | 100 | 0% | 29% | 12% | 13% | 32% | 14% | |
| 8). Rock Creek (downstream) | 105 | 0% | 42% | 17% | 26% | 15% | ||
| 9). Broad Creek (downstream - Henson Creek) | 107 (100) | 0% (0%) | 36% (34%) | 11% (10%) | 13% (14%) | 24% (23%) | 16% (19%) | |
| 10). Broad Creek (upstream - Henson Creek) | 110 | 0% | 33% | 13% | 12% | 23% | 19% | |
| 11). Parkway (upstream - Walker Branch) | 130 | 0% | 32% | 12% | 18% | 21% | 17% | |
| 12). Seneca Creek (downstream) | 145 | 35% | 22% | 16% | 15% | 9% | 3% | |
| 13). Muddy Branch (upstream) | 197 | 0% | 34% | 16% | 33% | 17% | ||
| 14). Upper Beaverdam Creek (upstream) | 202 | 16% | 38% | 11% | 22% | 13% | ||
| 15). Rock Creek (upstream) | 207 | 31% | 24% | 13% | 21% | 11% | ||
| 16). Indian Creek (upstream) | 222 | 0% | 33% | 7% | 3% | 36% | 21% | |
| 17). Oxon Run (downstream) | 232 | 0% | 29% | 12% | 15% | 32% | 12% | |
| 18). Western Branch (upstream) | 242 | 26% | 27% | 5% | 12% | 19% | 11% | |
| 19). Western Branch (downstream) | 247 (263) | 39% (42%) | 23% (22%) | 13% (11%) | 17% (16%) |
8% (9%) | ||
| 20). Seneca Creek (upstream) | 250 | 11% | 38% | 7% | 19% | 16% | 9% | |
| 21). Horsepen (upstream) | 252 | 0% | 25% | 10% | 14% | 21% | 21% | 9% |
| 22). Cabin John Creek (upstream) | 255 | 33% | 28% | 15% | 31% | 16% | ||
| 23). Cabin John Creek (downstream) | 283 | 0% | 38% | 15% | 31% | 16% | ||
| 24). Watts Branch (upstream) | 328 | 15% | 33% | 18% | 23% | 11% | ||
| 25). Lower Beaverdam Creek (downstream) | 333 | 14% | 27% | 10% | 12% | 23% | 14% | |
| 26). Northwest Branch (upstream) | 358 | 21% | 20% | 17% | 11% | 24% | 7% | |
| 27). Muddy Branch (downstream) | 365 (341) | 0% (0%) | 32% (32%) | 6% (5%) | 11% (13%) | 30% (31%) |
21% (19%) | |
| 28). Lower Anacostia (downstream) | 367 | 36% | 21% | 7% | 9% | 18% | 9% | |
| 29). Paint Branch (upstream) | 393 | 0% | 34% | 9% | 16% | 33% | 8% | |
| 30). Upper Beaverdam Creek (downstream) | 455 | 23% | 34% | 15% | 21% | 7% | ||
| 31). Piscataway (downstream) | 463 | 29% | 22% | 15% | 26% | 8% | ||
| 32). Sligo Creek (downstream) | 550 | 32% | 23% | 17% | 13% | 10% | 5% | |
| 33). Little Falls (downstream) | 698 (657%) | 23% (21%) | 31% (27%) | 6% (4%) | 12% (15%) | 23% (25%) | 5% (8%) | |
| 34). Watts Branch (downstream) | 705 | 31% | 31% | 6% | 12% | 17% | 3% | |
| 35). Sligo Creek (upstream) | 720 | 26% | 25% | 14% | 19% | 11% | 5% | |
| 36). Parkway (downstream - Bear Branch) | 930 | 0% | 33% | 15% | 19% | 24% | 9% | |
| 37). Lower Beaverdam Creek (upstream) | 1420 | 33% | 19% | 7% | 14% | 21% | 6% | |
| 38). Oxon Run (upstream-Watts Branch) | 1740 | 31% | 11% | 14% | 13% | 24% | 7% | |
| 39). Little Falls (upstream) | 1993 | 31% | 21% | 7% | 12% | 21% | 8% | |
| 40). Horsepen (downstream) | 2433 | 24% | 23% | 9% | 6% | 19% | 12% | 7% |