Friends of the Shenandoah River

E. coli Testing Results for May 22, 2025

May 23, 2025

05.22.2025 Large log jam blocking landing at site FC08, Castleman’s Ferry Rt. 7 bridge, Clarke County VA

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 at most sampling sites on Thursday, May 22, 2025. However, elevated levels were still detected at two locations:

• FW14 – South Fork Shenandoah River @ Front Royal PBL off Luray Ave, Warren County VA

• FPHCTL – Hawksbill Creek @ Luray & Hawksbill Creek Greenway Pocket Park off Virginia Ave, Page County VA

Stay tuned for more updates as the season progresses!

FOSR provides, as a guideline, the US Environmental Protection Agency recommended precautionary “do not exceed” freshwater Beach Action Value (BAV) of 235 CFU of E. coli bacteria per 100mL of water sample for early alert to for those planning on recreating in natural freshwaters, including families with children.

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E. Coli Test results for May 23, 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

E. coli Testing Results for July 1, 2024

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

E. coli Testing Results for June 26, 2024

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

E. coli Testing Results for June 19, 2024

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

E. coli Testing Results for June 11, 2024

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

E. coli Testing Results for June 5, 2024

These are the E. coli results for the water samples collected on Wednesday June 05, 2024 as part of Friends of the Shenandoah River (FOSR) Summer E. coli Testing Program at public access locations on

E. coli Testing Results for May 30, 2024

These are the E. coli results for the water samples collected on Thursday May 30, 2024 as part of Friends of the Shenandoah River (FOSR) Summer E. coli Testing Program at public access locations on

E. coli Testing Results for May 21, 2024

Friends of the Shenandoah River (FOSR) launched our Summer E. coli Testing Program at public access locations on the Main-stem, South Fork, and North Fork of the Shenandoah River yesterday, Tuesday May 21, 2024. We

E. coli Testing Results for May 19, 2026

Friends of Shenandoah are proud to launch the 10th year of our KNOW BEFORE YOU GO! Summer E. coli Testing Program at public access sites along the North Fork, South

E. coli Testing Results for September 18, 2025

As the summer of 2025 comes to a close, Friends of the Shenandoah River (FOSR) has completed its final E. coli monitoring event for the season. Of the 14 sites

E. coli Testing Results for September 02, 2025

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

Enjoy the beauty of the North Fork Shenandoah River from above at this gem, the Deer Rapids Road footbridge by the public boat landing

E. coli Testing Results for August 27, 2025

Great news heading into the holiday weekend, with no rain in the forecast, we’re hopeful that E. coli levels will stay consistent with yesterday’s results at the river sites we

E. coli Testing Results for August 20, 2025

Friends: This week’s testing results show the E. coli levels at all monitored sites, except one, were below the EPA’s recommended “do not exceed” threshold of 235 CFU per 100mL

E. coli Testing Results for August 12, 2025

The E. coli levels at all the River sites and Manassas Run (FW36, Warren County VA) tested were below the EPA’s recommended “do not exceed” threshold of 235 CFU of