FOSR 2019 Summer E. coli Results through 08.22.2019

These are the E. coli concentration results for the water samples that I collected on Thursday, August 22.  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.  After the water samples were collected yesterday, it rained in many of the areas that the sites are located.  The rain flushes contaminants, including E. coli bacteria,  from all of the exposed surfaces in the urban, suburban, rural, and agricultural areas into the streams and rivers.

FOSR 2019 Summer Quantitative E. coli Concentration Results through 08.22.2019

At 1 of the 16 sites tested on August 22, the E. coli levels exceeded the 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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