WSSC Water Quality Monitoring
Here are the nineteenth round of results of WSSC's fecal bacteria monitoring tests which are required by the consent decree. Many sites had high Enterococci bacteria counts this time. These results are from this WSSC report.
November 2, 2011 |
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). Cabin John Creek (upstream) | 33 Bacteriodes: Negative | 0% | 43% | 12% | 13% | 20% | 12% | |
| 2). Piscataway (upstream) | 38 Bacteriodes: Negative | 0% | 38% | 15% | 10% | 22% | 15% | |
| 3). Northwest Branch (downstream) | 40 Bacteriodes: Negative | 0% | 39% | 9% | 13% | 21% | 18% | |
| 4). Northwest Branch (downstream) | 58 Bacteriodes: Negative | 0% | 38% | 17% | 9% | 19% | 17% | |
| 4). Paint Branch (upstream) | 58 Bacteriodes: Negative | 0% | 32% | 17% | 11% | 23% | 17% | |
| 6). Broad Creek (upstream - Henson Creek) | 63 (67) |
0% (0%) | 42% (44%) | 19% (18%) | 12% (13%) | 19% (16%) | 8% (9%) | |
| 7). Lower Anacostia (upstream) | 65 Bacteriodes: Negative | 0% | 43% | 10% | 12% | 22% | 13% | |
| 8). Cabin John Creek (downstream) | 68 Bacteriodes: Negative |
0% | 38% | 15% | 4% | 26% | 17% | |
| 9). Sligo Creek (downstream) | 70 Bacteriodes: Negative |
0% | 41% | 13% | 3% | 27% | 16% | |
| 10). Northeast Branch (upstream) | 75 Bacteriodes: Negative |
0% | 41% | 13% | 8% | 21% | 17% | |
| 11). Broad Creek (downstream - Henson Creek) | 83 | 0% | 38% | 15% | 13% | 23% | 11% | |
| 11). Paint Branch (downstream) | 83 Bacteriodes: Negative | 0% | 37% | 15% | 12% | 21% | 15% | |
| 13). Little Falls (downstream) | 88 | 0% | 36% | 15% | 14% | 19% | 16% | |
| 14). Upper Beaverdam Creek (downstream) | 100 Bacteriodes: Positive |
11% | 37% | 8% | 9% | 21% | 14% | |
| 15). Northeast Branch (downstream) | 110 Bacteriodes: Negative | 0% | 37% | 16% | 6% | 19% | 22% | |
| 16). Indian Creek (downstream) | 125 | 0% | 31% | 8% | 11% | 18% | 18% | 14% |
| 16). Sligo Creek (upstream) | 125 Bacteriodes: Negative |
0% | 37% | 14% | 4% | 33% | 12% | |
| 18). Seneca Creek (downstream) | 135 Bacteriodes: Positive |
17% | 34% | 9% | 7% | 19% | 14% | |
| 19). Seneca Creek (upstream) | 155 (153) Bacteriodes: Positive (Positive) |
12% (13%) | 38% (37%) | 13% (15%) | 5% (8%) | 22% (23%) | 10% (4%) | |
| 20). Horsepen (upstream) | 163 (163) Bacteriodes: Negative (Negative) |
4% (4%) | 29% (32%) | 12% (13%) | 7% (6%) | 15% (14%) | 19% (20%) | 14% (11%) |
| 21). Oxon Run (downstream) | 165 Bacteriodes: Negative |
5% | 36% | 16% | 8% | 24% | 11% | |
| 22). Indian Creek (upstream) | 170 | 0% | 36% | 13% | 13% | 14% | 19% | 5% |
| 23). Rock Creek (upstream) | 177 | 13% | 33% | 15% | 9% | 20% | 10% | |
| 24). Piscataway (downstream) | 180 Bacteriodes: Negative | 7% | 37% | 10% | 14% | 19% | 13% | |
| 25). Muddy Branch (downstream) | 183 Bacteriodes: Negative |
0% | 38% | 17% | 9% | 19% | 17% | |
| 26). Horsepen (downstream) | 185 Bacteriodes: Positive |
17% | 27% | 11% | 14% | 13% | 13% | 5% |
| 27). Watts Branch (downstream) | 195 | 8% | 29% | 18% | 14% | 17% | 14% | |
| 28). Western Branch (upstream) | 210 Bacteriodes: Positive |
19% | 33% | 18% | 6% | 15% | 9% | |
| 29). Parkway (downstream - Bear Branch) | 212 Bacteriodes: Negative |
4% | 21% | 17% | 11% | 31% | 16% | |
| 30). Parkway (upstream - Walker Branch) | 223 Bacteriodes: Negative |
3% | 34% | 13% | 8% | 21% | 20% | |
| 31). Northwest Branch (upstream) | 273 Bacteriodes: Positive |
6% | 39% | 14% | 12% | 17% | 12% | |
| 32). Lower Anacostia (downstream) | 290 Bacteriodes: Positive |
13% | 39% | 7% | 10% | 17% | 14% | |
| 33). Little Falls (upstream) | 340 | 10% | 32% | 13% | 10% | 22% | 13% | |
| 34). Watts Branch (upstream) | 345 | 14% | 27% | 17% | 15% | 19% | 8% | |
| 35). Lower Beaverdam Creek (upstream) | 350 Bacteriodes: Positive |
33% | 29% | 12% | 6% | 15% | 5% | |
| 36). Oxon Run (upstream-Watts Branch) | 445 Bacteriodes: Positive |
21% | 41% | 11% | 7% | 10% | 10% | |
| 37). Rock Creek (downstream) | 460 (463) |
11% (10%) | 37% (35%) | 12% (11%) | <6% (9%) | 26% (27%) | 8% (8%) | |
| 38). Upper Beaverdam Creek (upstream) | 540 (610) Bacteriodes: Positive (Positive) |
27% (28%) | 24% (21%) | 10% (9%) | 12% (13%) | 15% (16%) | 12% (13%) | |
| 39). Lower Beaverdam Creek (downstream) | 728 Bacteriodes: Positive |
19% | 30% | 13% | 7% | 23% | 8% | |
| 40). Western Branch (downstream) | 1048 Bacteriodes: Positive |
37% | 26% | 11% | 8% | 12% | 6% | |
Numbers in parentheses() are results for field duplicate samples.