At three of the sites that we collected water samples at yesterday, Thursday July 01,  the E. coli levels exceeded the previous Virginia water-quality standard threshold of 235 E. coli colony forming units per 100 mL of water sample for primary recreational use.

FW36 – Manassas Run upstream of the confluence with main-stem Shenandoah River, just upstream of the public boat landing, 275.5 MPN of E. coli colony-forming units per 100 mL

FW35MID –Main-stem Shenandoah River at Morgan’s Ford low H2O bridge at mid width of the River, 290.9 MPN E. coli colony-forming units per 100 mL

FSMB – North Fork of the Shenandoah River at Meems Bottom, 290.9 MPN E. coli colony-forming units per 100 mL

FOSR 2021 Summer Quantitative E. coli Concentration Results through 07.01.2021

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