WSSC Water Quality Monitoring
Here is the twenty-fourth round of results of WSSC's fecal bacteria monitoring tests which are required by the consent decree. These results are from this WSSC report.
April 2, 2014 |
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). Parkway (upstream - Walker Branch) |
<10 | Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR | ||||||
| 1). Piscataway (upstream) |
<10 | Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR | ||||||
| 1). Upper Beaverdam Creek (upstream) |
<10 (21) | Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR | ||||||
| NA(0%) | NA(34%) | NA(10%) | NA(12%) | NA(0%) | NA(25%) | NA(19%) | ||
| 1). Watts Branch (upstream) |
<10 | Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR | ||||||
| 5). Seneca Creek (downstream) |
15 | 0% Human Bacteriodes HF183: Negative |
29% | 8% | 11% | 0% | 24% | 28% |
| 5). Western Branch (upstream) |
15 | 4% Human Bacteriodes HF183: Negative |
33% | 6% | 9% | 0% | 25% | 23% |
| 7). Muddy Branch (downstream) |
16 | 0% Human Bacteriodes HF183: Negative |
36% | 5% | 14% | 0% | 28% | 17% |
| 8). Little Falls (downstream) |
18 | 3% Human Bacteriodes HF183: Negative |
35% | 4% | 11% | 0% | 27% | 20% |
| 9). Northwest Branch (upstream) |
19 | 0% Human Bacteriodes HF183: Negative |
38% | 6% | 7% | 0% | 29% | 20% |
| 10). Piscataway (downstream) |
21 | 0% Human Bacteriodes HF183: Negative |
29% | 9% | 14% | 0% | 23% | 25% |
| 11). Watts Branch (downstream) |
22 | 0% Human Bacteriodes HF183: Negative |
36% | 7% | 8% | 0% | 24% | 25% |
| 12). Oxon Run (downstream) |
24 | 3% Human Bacteriodes HF183: Negative |
30% | 9% | 12% | 0% | 28% | 18% |
| 13). Paint Branch (upstream) |
25 | 3% Human Bacteriodes HF183: Negative |
30% | 11% | 9% | 0% | 34% | 13% |
| 14). Western Branch (downstream) |
25 | 8% Human Bacteriodes HF183: Negative |
27% | 9% | 10% | 0% | 28% | 18% |
| 15). Oxon Run (upstream-Watts Branch) |
27 | 5% Human Bacteriodes HF183: Negative |
28% | 7% | 10% | 0% | 26% | 24% |
| 15). Seneca Creek (upstream) | 27 | 0% Human Bacteriodes HF183: Negative |
29% | 8% | 11% | 0% | 24% | 28% |
| 17). Upper Beaverdam Creek (downstream) |
28 | 0% Human Bacteriodes HF183: Negative |
36% | 9% | 13% | 0% | 25% | 17% |
| 18). Broad Creek (upstream - Henson Creek) |
32 (<10) | 0% (NA) Human Bacteriodes HF183: Negative |
34% (NA) | 12% (NA) | 11% (NA) | 0% (NA) | 19% (NA) | 24% (NA) |
| 19). Muddy Branch (upstream) |
34 | 0% Human Bacteriodes HF183: Negative |
33% | 1% | 13% | 0% | 35% | 18% |
| 20). Northwest Branch (downstream) |
48 | 4% Human Bacteriodes HF183: Negative |
32% | 15% | 8% | 0% | 24% | 17% |
| 21). Broad Creek (downstream - Henson Creek) |
50 | 0% Human Bacteriodes HF183: Negative |
33% | 10% | 9% | 0% | 23% | 25% |
| 22). Northeast Branch (upstream) |
67 | 12% Human Bacteriodes HF183: Positive |
37% | 8% | 14% | 0% | 19% | 10% |
| 23). Sligo Creek (upstream) |
69 | 9% Human Bacteriodes HF183: Positive |
23% | 11% | 12% | 0% | 24% | 21% |
| 24). Sligo Creek (downstream) |
71 | 21% Human Bacteriodes HF183: Positive |
25% | 10% | 11% | 0% | 17% | 16% |
| 25). Horsepen (downstream) |
73 (87) | 6% (6%) Human Bacteriodes HF183: Negative |
29% (27%) | 10% (10%) | 8% (9%) | 15% (15%) | 20% (19%) | 12% (14%) |
| 26). Indian Creek (upstream) |
83 | 5% Human Bacteriodes HF183: Negative |
29% | 8% | 4% | 13% | 23% | 8% |
| 27). Parkway (downstream - Bear Branch) |
93 | 6% Human Bacteriodes HF183: Negative |
30% | 13% | 15% | 0% | 23% | 13% |
| 28). Lower Anacostia (upstream) |
94 | 4% Human Bacteriodes HF183: Negative |
39% | 17% | 4% | 0% | 22% | 14% |
| 29). Lower Beaverdam Creek (downstream) |
102 | 18% Human Bacteriodes HF183: Positive |
27% | 7% | 12% | 0% | 24% | 12% |
| 30). Indian Creek (downstream) |
111 | 9% Human Bacteriodes HF183: Negative |
33% | 7% | 6% | 11% | 19% | 15% |
| 31). Cabin John Creek (downstream) |
118 | 7% Human Bacteriodes HF183: Positive |
29% | 5% | 10% | 0% | 24% | 25% |
| 32). Horsepen (upstream) |
141 | 11% Human Bacteriodes HF183: Positive |
31% | 6% | 7% | 17% | 17% | 11% |
| 33). Cabin John Creek (upstream) |
164 | 15% Human Bacteriodes HF183: Positive |
27% | 6% | 17% | 0% | 21% | 14% |
| 34). Rock Creek (downstream) |
188 | 22% Human Bacteriodes HF183: Positive |
25% | 7% | 8% | 0% | 19% | 19% |
| 35). Rock Creek (upstream) |
227 | 6% Human Bacteriodes HF183: Positive |
34% | 3% | 11% | 0% | 28% | 18% |
| 36). Paint Branch (downstream) |
233 | 11% Human Bacteriodes HF183: Positive |
31% | 10% | 11% | 0% | 21% | 16% |
| 37). Lower Beaverdam Creek (upstream) | 295 | 24% Human Bacteriodes HF183: Positive |
21% | 4% | 14% | 0% | 21% | 16% |
| 38). Lower Anacostia (downstream) |
336 | 12% Human Bacteriodes HF183: Positive |
35% | 15% | 4% | 0% | 21% | 13% |
| 39). Northeast Branch (downstream) |
566 (565) | 33% (33%) Human Bacteriodes HF183: Positive |
24% (22%) | 4% (5%) | 6% (6%) | 0% (0%) | 21% (21%) | 12% (13%) |
| 40). Little Falls (upstream) |
1028 | 37% Human Bacteriodes HF183: Positive |
21% | 9% | 6% | 0% | 15% | 12% |
Numbers in parentheses() are results for field duplicate samples.
NA: Too few bacteria for BOX-PCR source determination in duplicate sample.