WSSC Water Quality Monitoring


Here are the fourth 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.

January 9, 2008

 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
(upstream)		20
[19]		0%32%11%14%32% 11%
2). Northwest Branch
(downstream)		33 (35)
[24] [14]		0%
(0%)		41%
(38%)		9%
(13%)		9%
(10%)		23%
(19%)		 18%
(20%)
3). Lower Anacostia
(downstream)		130
[110]		0%36%14%9%25% 16%
4). Sligo Creek
(downstream)		328
[315]		0%28%16%8%31%17%
Numbers in parentheses() for station NWA001 are for field duplicate sample. Numbers in brackets[] are for duplicate Enterococcus sample submitted to a different bacteria lab.