WSSC Water Quality Monitoring


Here are the eighth 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.

June 26, 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). Lower Anacostia
(downstream)		<10Too few bacteria for source determination
1). Northwest Branch
(downstream)		<10Too few bacteria for source determination
3). Northeast Branch
(upstream)		380%37%10%11%35% 7%
4). Sligo Creek
(downstream)		187
(193)		12%
(14%)		33%
(30%)		15
(16%)		7%
(8%)		29%
(30%)		4%
(2%)

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