WSSC Water Quality Monitoring


Here are the twelfth round of results of WSSC's fecal bacteria monitoring tests which are required by the consent decree. This round is limited to four sites, however one of those sites is Sligo Creek. These results are from this WSSC report.

November 18, 2009

 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
HumanAvianCanineDeerMiscellaneous WildlifeNon-human Unknown
1). Northeast Branch
(downtream) 		32
(36)		0%
(0%)		34%
(33%)		10
(11%)		15%
(13%)		30%
(31%)		11%
(12%)
2). Sligo Creek
(downstream)		390%37%9%)14%27%13%
3). Northwest Branch
(downstream)		450%40%8%7%25%20%
4). Lower Anacostia
(downstream)		534%35%17%11%21%12%

Note: Values in parenthesis for Northeast Branch station are for field duplicate sample.