WSSC Water Quality Monitoring
Here is the twenty-ninth round of results of WSSC's fecal bacteria monitoring tests which are required by the consent decree. These results are from this WSSC report. The report also describes a change in the testing methods from previous tests.
December 15, 2016 |
The Maryland state standards for Enterococci bacteria:
|
| Stream Site | Fecal Bacteria Results Enterococcus CFU/100mL | Bacterial Source Testing | |||
|---|---|---|---|---|---|
| Human Bacteriodes (EPA) | Human Bacteriodes (Dorei) | Bird Fecal ID | Dog Bacteriodes ID | ||
| 1). Muddy Branch (downstream) |
40 | Not Detected | Not Detected | Not Detected | Not Detected |
| 2). Seneca Creek (downstream) |
48 | Below limit of quantitation | 840 | Not Detected | Not Detected |
| 3). Cabin John Creek (downstream) |
82 | Not Detected | Not Detected | Not Detected | Not Detected |
| 4). Piscataway (upstream) |
93 | Not Detected | Not Detected | Below limit of quantitation | Not Detected |
| 5). Cabin John Creek (upstream) |
99 | Not Detected | Below limit of quantitation | Not Detected | Not Detected |
| 6). Piscataway (downstream) |
111 (178) | Not Detected (Not Detected) |
Not Detected (Not Detected) | Below limit of quantitation (Below limit of quantitation) | Not Detected (Not Detected) |
| 7). Parkway (downstream - Bear Branch) |
125 | Below limit of quantitation | 683 | 307 | Not Detected |
| 8). Broad Creek (downstream - Henson Creek) |
132 | Below limit of quantitation | 840 | Not Detected | Not Detected |
| 9). Watts Branch (downstream) |
139 | Not Detected | Below limit of quantitation | Below limit of quantitation | Not Detected |
| 10). Paint Branch (upstream) |
140 | 260 | 5600 | Below limit of quantitation | Not Detected |
| 10). Parkway (upstream - Walker Branch) |
140 | Not Detected | Not Detected | Not Detected | Not Detected |
| 12). Horsepen (downstream) |
144 | Not Detected | Not Detected | Not Detected | Not Detected |
| 13). Paint Branch (downstream) |
147 (113) | Not Detected (Not Detected) |
Not Detected (Not Detected) | Not Detected (Not Detected) | Not Detected (Not Detected) |
| 14). Northwest Branch (upstream) |
149 | Not Detected | Not Detected | Not Detected | Below limit of quantitation |
| 15). Watts Branch (upstream) |
184 (97) | Not Detected (Not Detected) |
Not Detected (Not Detected) | Not Detected (Not Detected) | Not Detected (Not Detected) |
| 16). Horsepen (upstream) |
186 | Not Detected | Not Detected | Not Detected | Not Detected |
| 17). Northeast Branch (downstream) |
188 | 287 | 3650 | Below limit of quantitation | Below limit of quantitation |
| 18). Dry Seneca Creek (upstream) | 191 | Not Detected | Not Detected | Not Detected | Below limit of quantitation |
| 19). Muddy Branch (upstream) |
197 | Not Detected | Below limit of quantitation | Below limit of quantitation | Below limit of quantitation |
| 20). Oxon Run (upstream-Watts Branch) |
213 | 367 | 1590 | Not Detected | 874 |
| 21). Western Branch (upstream) |
238 | Not Detected | Below limit of quantitation | Below limit of quantitation | Not Detected |
| 22. Rock Creek (upstream) |
256 | Not Detected | Not Detected | Below limit of quantitation | Not Detected |
| 23). Indian Creek (upstream) |
257 | Not Detected | Not Detected | Below limit of quantitation | Not Detected |
| 24). Northeast Branch (upstream) |
259 | 429 | 5950 | Below limit of quantitation | Below limit of quantitation |
| 25). Sligo Creek (upstream) |
282 | Not Detected | Below limit of quantitation | Not Detected | Not Detected |
| 26). Rock Creek (downstream) |
317 (248) | 423 (410) |
8840 (9070) | Below limit of quantitation (Below limit of quantitation) | Not Detected (Below limit of quantitation) |
| 27). Oxon Run (downstream) |
389 | 2570 | 44900 | Not Detected | Below limit of quantitation |
| 28). Broad Creek (upstream - Henson Creek) |
413 | Not Detected | Below limit of quantitation | Below limit of quantitation | Below limit of quantitation |
| 29). Sligo Creek (downstream) |
419 | Below limit of quantitation | 2480 | Below limit of quantitation | Below limit of quantitation |
| 30). Lower Anacostia (downstream) |
703 | 1550 | 23500 | 753 | Not Detected |
| 31). Indian Creek (downstream) |
740 | Below limit of quantitation | 1090 | 631 | Not Detected |
| 32). Lower Anacostia (upstream) |
800 | 2580 | 27500 | 256 | Below limit of quantitation |
| 33). Northwest Branch (downstream) |
1196 | 4510 | 40800 | Below limit of quantitation | Below limit of quantitation |
| 34). Upper Beaverdam Creek (upstream) |
1316 | 336 | 12500 | Below limit of quantitation | Not Detected |
| 35). Little Falls (downstream) |
1354 | Below limit of quantitation | 1180 | Below limit of quantitation | Below limit of quantitation |
| 36). Lower Beaverdam Creek (upstream) | 1889 | Not Detected | Below limit of quantitation | 354 | Not Detected |
| 37). Upper Beaverdam Creek (downstream) |
3625 | Below limit of quantitation | 4010 | Below limit of quantitation | Not Detected |
| 38). Little Falls (upstream) |
6236 | 380 | 1900 | Below limit of quantitation | Below limit of quantitation |
| 39). Lower Beaverdam Creek (downstream) |
8345 | 740 | 4180 | 778 | Not Detected |
| 40). Western Branch (downstream) |
10090 (6893) | 15700 (13000) |
171000 (161000) | Below limit of quantitation (Below limit of quantitation) | Below limit of quantitation (Below limit of quantitation) |
Numbers in parentheses() are results for field duplicate samples.