WSSC Water Quality Monitoring


Here is the twenty-sixth 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 19, 2015

 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). Broad Creek
(downstream - Henson Creek)		 <10
(<10)		Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Cabin John Creek
(downstream)		 <10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Little Falls
(downstream)		 <10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Little Falls
(upstream)		 <10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Northeast Branch
(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). Northwest Branch
(upstream)		 <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). Oxon Run
(upstream-Watts Branch)		 <10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Paint Branch
(upstream)		 <10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Piscataway
(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). Sligo Creek
(upstream)		 <10Human Bacteriodes HF183: Too few bacteria for HF183;
BOX-PCR Source Determination: Too few bacteria for BOX-PCR
1). Watts Branch
(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
17). Parkway
(upstream - Walker Branch)		 170%
Human Bacteriodes HF183: Negative		 32%10%16%0%27%15%
18). Paint Branch
(downstream)		 200%
Human Bacteriodes HF183: Negative		 33%12%14%0%26%15%
18). Parkway
(downstream - Bear Branch)		 202%
Human Bacteriodes HF183: Negative		 34%12%16%0%26%10%
20). Cabin John Creek
(upstream)		 230%
Human Bacteriodes HF183: Negative		 33%6%12%0%22%27%
20). Watts Branch
(upstream)		 232%
Human Bacteriodes HF183: Negative		 35%5%15%0%31%12%
22). Upper Beaverdam Creek
(upstream)		 2710%
Human Bacteriodes HF183: Negative		 34%7%5%0%27%17%
23). Muddy Branch
(downstream)		 330%
Human Bacteriodes HF183: Negative		 28%6%15%0%31%20%
24). Indian Creek
(upstream)		 407%
Human Bacteriodes HF183: Negative		 25%6%6%10%22%24%
24). Seneca Creek
(downstream)		 405%
Human Bacteriodes HF183: Negative		 31%15%7%0%21%21%
24). Seneca Creek
(upstream) 		403%
Human Bacteriodes HF183: Negative		 33%12%8%0%27%17%
27). Horsepen
(upstream)		 43
(47)		3%
(5%)
Human Bacteriodes HF183: Negative
(Negative)		 28%
(29%)		9%
(6%)		7%
(8%)		13%
(12%)		24%
(23%)		16%
(17%)
28). Indian Creek
(downstream)		 435%
Human Bacteriodes HF183: Negative		 29%8%8%9%23%18%
29). Horsepen
(downstream)		 452%
Human Bacteriodes HF183: Negative		 31%6%10%8%19%24%
29). Sligo Creek
(downstream)		 4512%
Human Bacteriodes HF183: Positive		 28%9%14%0%25%12%
31). Lower Beaverdam Creek
(upstream) 		4811%
Human Bacteriodes HF183: Negative		 22%0%16%0%26%25%
32). Muddy Branch
(upstream)		 120
(118)		2%
(2%)
Human Bacteriodes HF183: Negative
(Negative)		 37%
(33%)		3%
(4%)		6%
(6%)		0%
(0%)		25%
(27%)		27%
(28%)
33). Rock Creek
(downstream)		 12315%
Human Bacteriodes HF183: Positive		 31%8%12%0%23%11%
34). Rock Creek
(upstream)		 1288%
Human Bacteriodes HF183: Negative		 29%5%12%0%21%25%
35). Lower Beaverdam Creek
(downstream)		 14016%
Human Bacteriodes HF183: Positive		 25%6%9%0%28%16%
36). Upper Beaverdam Creek
(downstream)		 34022%
Human Bacteriodes HF183: Positive		 22%6%15%0%24%11%
37). Lower Anacostia
(downstream)		 3637%
Human Bacteriodes HF183: Positive		 38%14%0%0%22%19%
38). Broad Creek
(upstream - Henson Creek)		 3753%
Human Bacteriodes HF183: Positive		 37%15%9%0%20%16%
39). Lower Anacostia
(upstream)		 410
(475)		9%
(8%)
Human Bacteriodes HF183: Positive
(Positive)		 41%
(42%)		16%
(14%)		0%
(0%)		0%
(0%)		21%
(21%)		13%
(15%)
40). Northeast Branch
(downstream)		 61013%
Human Bacteriodes HF183: Positive		 27%7%7%0%22%24%


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