WSSC Water Quality Monitoring

Here are the sixteenth 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 10th, 2010

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 Site	Fecal Bacteria Results Enterococcus CFU/100mL	Bacterial Source Testing
Stream Site	Fecal Bacteria Results Enterococcus CFU/100mL	Human	Avian	Canine	Deer	Miscellaneous Wildlife	Non-human Unknown
1). Northwest Branch (downstream)	<10 (<10)	Too few bacteria for BST source determination
2). Lower Anacostia (downstream)	24	0%	24%	13%	9%	20%	34%
3). Sligo Creek (downstream)	39	0%	21%	10%	9%	28%	32%
4). Northeast Branch (upstream)	51	0%	26%	8%	11%	27%	28%

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