FOSR’s 2020 Summer E. coli Results through 05.20.2020

FOSR’s Summer E. coli Testing Project at public access and recreational use areas on the Main Stem, North Fork, and South Fork of the Shenandoah River and Opequon Creek

Up until the middle of last year, Virginia’s water quality standard for freshwater beach advisories or closures was a single sample maximum of 235 E.coli CFU/100 ml of sample.  Virginia no longer has a single sample maximum or any criteria for primary recreational contact in freshwaters.

These are the E. coli concentration results for the water samples that were collected yesterday, Wednesday, May 20, 2020.  In a freshwater system, these data represent a snapshot of the water quality on the date, time, and under the conditions that the water sample was collected.

FOSR 2020 Summer Quantitative E. coli Concentration Results through 05.20.2020

At 1 of the 14 sites tested on Wednesday May 20, 2020 the E. coli levels exceeded the “previous” Virginia Water Quality Standard threshold level of 235 colony-forming units of E. coli per 100 ml of sample for freshwater beaches.  This site was:

  • FW36, Manassas Run, a tributary the feeds into the Main-stem Shenandoah River just upstream of the public boat landing at Morgan’s Ford Bridge on Morgans Ford Road, Warren County

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