Friends of the Shenandoah River

E. coli Testing Results for September 02, 2025

Did the Streak Continue For a Fourth Consecutive E. coli Testing Event?
Seeing the river through curious eyes, inspiring the next generation of river stewards

Unfortunately, no, the E. coli level measured in the Shenandoah River at Lockes Landing public boat landing (site FC05) in Clarke County, VA was 248.1 MPN (most probable number) of colony-forming units per 100 mL of water. This exceeds the EPA’s recommended Beach Action Value (BAV) threshold for freshwater recreation, which is 235 CFU/100 mL.

However, there is good news. All other monitored sites, including Manassas Run and Hawksbill Creek, tested below the EPA’s BAV threshold.

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E. Coli Test results for September 3, 2025

These results provide a snapshot of the E. coli bacteria concentrations at the designated sites on the date, time, and under the conditions that the water samples were collected.

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Test Results Archive

The results of the water samples collected yesterday, Thursday, May 29, show that 11 out of 14 testing sites along the Shenandoah River at public access sites had E. coli levels above the U.S. Environmental

We have officially launched our 2025 Summer E. coli Testing Program! Last week’s measurable rainfall appears to have helped flush out contaminants that accumulated during the drought. As a result, E. coli levels were low

With community interest and support we were able to collect a water sample at site FPHCTL on Hawksbill Creek yesterday, Thursday October 3, catching the tail end of the flooding caused by rains from the

This is the first time, out of 17 weekly E. coli testing events, that the E. coli level at site FPHCTL, Hawksbill Creek at the Pocket Park downstream of Greenway pedestrian bridge adjacent to Virginia

Collecting the 1st Water Sample of the Day Using the Headlights of the Car to Illuminate the Way Below is the link to the E. coli results for the water samples collected on, 09.03.2024, as

Below is the link to the E. coli results for the water samples collected yesterday, 08.29.2024, as part of Friends of the Shenandoah River’s Summer E. coli Testing Program. The Friends of the Shenandoah River

Below is the link to the E. coli results for the water samples collected yesterday, 08.21.2024, as part of Friends of the Shenandoah River’s Summer E. coli Testing Program. The Friends of the Shenandoah River

These are the E. coli bacteria results for the water samples that were collected yesterday, Thursday August 15, 2024. While the Rivers were still flowing swiftly and the levels slightly elevated yesterday, the water levels

Below is the link to FOSR’s 2024 Summer E. coli Testing Program results that have been accumulated through Tuesday, August 6, 2024. The Site IDs have been colored-coded to aid in identifying the part of

E. coli results for the water samples collected on Wednesday July 17, 2024. This week I collected a water sample from an additional site, FP03WL. You might recall this site from previous years when the

Below is the link to the E. coli results for the water samples collected yesterday, 07.10.2024, as part of Friends of the Shenandoah River’s Summer E. coli Testing Program. The Friends of the Shenandoah River

The two sites that have routinely exceeded freshwater Beach Action Value (BAV) of 235 CFU of E. coli bacteria per 100 mL of water sample are tributaries. Site FPHCTL located on the Hawksbill Creek of

Shenandoah River Watershed is Facing Challenges Below is the link to the E. coli results for the water samples collected yesterday, 06.26.2024, as part of Friends of thebShenandoah River’s Summer E. coli Testing Program. The

As the temperature raises the cool waters of the Shenandoah Rivers maybe calling to you. The goal of FOSR’s summer E. coli testing program is to provide frequent, real-time accredited E. coli concentration results for

Below is the link to the E. coli results for the water samples collected yesterday, 06.11.2024, as part of Friends of the Shenandoah River’s Summer E. coli Testing Program. To confirm the previous 3 consecutive