WSSC Water Quality Monitoring



Here is the twenty-eighth round of results of WSSC's fecal bacteria monitoring tests which are required by the consent decree. These results are from this WSSC report.

March 23, 2016

The Maryland state standards for Enterococci bacteria:
All Areas: 33
Frequent Full Body Contact Recreation:61
Moderately Frequent Full Body Contact Recreation:78
Occasional Frequent Full Body Contact Recreation:107
Infrequent Full Body Contact Recreation:151
All numbers are counts per 100 milliliters
Stream SiteFecal Bacteria Results
Enterococcus CFU/100mL
Bacterial Source Testing
HumanAvianCanineDeerHorseMiscellaneous WildlifeNon-human Unknown
1). Cabin John Creek
(downstream)
<10
(<10)
Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Cabin John Creek
(upstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Indian Creek
(upstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Lower Anacostia
(upstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Lower Beaverdam Creek
(downstream)
<10
(<10)
Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Lower Beaverdam Creek
(upstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Northwest Branch
(downstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Oxon Run
(downstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Piscataway
(upstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Rock Creek
(downstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Rock Creek
(upstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Sligo Creek
(downstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Western Branch
(downstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Western Branch
(upstream)
<10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
15). Sligo Creek
(upstream)
162%
Human Bacteriodes HF183: (Negative)
33%8%6%0% 27%24%
16). Horsepen
(upstream)
170%
Human Bacteriodes HF183: Negative
32%7%8%11%21%21%
16). Muddy Branch
(upstream)
170%
Human Bacteriodes HF183: Negative
34%4%5%0%26%31%
16). Northeast Branch
(downstream)
170%
Human Bacteriodes HF183: Negative
30%7%7%0%24%32%
19). Broad Creek
(downstream - Henson Creek)
180%
Human Bacteriodes HF183: Negative
39%7%7%0%26%21%
20). Paint Branch
(downstream)
200%
Human Bacteriodes HF183: Negative
30%11%9%0%23%27%
20). Piscataway
(downstream)
200%
Human Bacteriodes HF183: Negative
34%11%8%0%22%25%
20). Watts Branch
(downstream)
200%
Human Bacteriodes HF183: Negative
31%8%9%0%25%27%
23). Little Falls
(downstream)
253%
Human Bacteriodes HF183: Negative
38%7%6%0%22%24%
23). Oxon Run
(upstream-Watts Branch)
256%
Human Bacteriodes HF183: Negative
36%11%9%0%21%17%
23). Parkway
(upstream - Walker Branch)
250%
Human Bacteriodes HF183: Negative
31%7%10%0%29%23%
26). Broad Creek
(upstream - Henson Creek)
270%
Human Bacteriodes HF183: Negative
38%9%6%0%24%23%
26). Paint Branch
(upstream)
274%
Human Bacteriodes HF183: Negative
29%10%7%0%21%29%
26). Watts Branch
(upstream)
270%
Human Bacteriodes HF183: Negative
34%6%7%0%22%31%
29). Seneca Creek
(downstream)
314%
Human Bacteriodes HF183: Negative
28%7%6%0%25%30%
30). Lower Anacostia
(downstream)
323%
Human Bacteriodes HF183: Negative
36%11%0%0%24%26%
31). Little Falls
(upstream)
335%
Human Bacteriodes HF183: Negative
33%8%9%0%25%20%
32). Muddy Branch
(downstream)
360%
Human Bacteriodes HF183: Negative
24%7%13%0%30%26%
32). Parkway
(downstream - Bear Branch)
362%
Human Bacteriodes HF183: Negative
29%9%7%0%28%25%
34). Northeast Branch
(upstream)
400%
Human Bacteriodes HF183: Negative
29%6%9%0%27%29%
35). Northwest Branch
(upstream)
420%
Human Bacteriodes HF183: Negative
31%6%8%0%25%30%
36). Upper Beaverdam Creek
(downstream)
556%
Human Bacteriodes HF183: Negative
32%5%12%0%19%26%
37). Indian Creek
(downstream)
57
(55)
6%
(6%)
Human Bacteriodes HF183: Negative
(Negative)
28%
(29%)
9%
(9%)
7%
(8%)
13%
(13%)
17%
(16%)
20%
(19%)
38). Dry Seneca Creek
(upstream)
60
(63)
13%
(14%)
Human Bacteriodes HF183: Negative
(Negative)
25%
(25%)
8%
(7%)
9%
(10%)
0%
(0%)
21%
(22%)
24%
(22%)
39). Horsepen
(downstream)
725%
Human Bacteriodes HF183: Negative
30%5%10%9%18%23%
40). Upper Beaverdam Creek
(upstream)
14514%
Human Bacteriodes HF183: Positive
28%4%8%0%21%25%


Numbers in parentheses() are results for field duplicate samples.