Friends of the Shenandoah River

09.02.2026 KNOW BEFORE YOU GO! H2O Samples Collected Today, Results Posted Tomorrow

September 2, 2026

Thinking about taking the family to the river this Labor Day weekend? 🌊 Concerned about potential exposure to E. coli bacteria? 🦠 OH YA, let’s check out the Friends of the Shenandoah River’s KNOW BEFORE YOU GO! 📋 Summer Weekly E. coli Testing Program latest E. coli results!

🔬 Our lab staff test the water weekly all summer long so YOU can make an informed choice about your recreational activity, whether that’s paddling 🛶, casting a line 🎣, or just letting the kids splash around 💦👨‍👩‍👧‍👦.

💙 This program only happens because of community support. If you’ve ever used our results to plan a river day, consider donating today to help us keep testing all season long. Your gift keeps the data flowing all summer!

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E. Coli Test results for September 2, 2026

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

Program Results through August 6, 2024

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

Test Results for July 17, 2024

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

FOSR’s Summer E.coli Testing Program Results for July 10, 2024

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

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 June 10, 2026

Wednesday 06.10.2026: Water levels in the Shenandoah River watershed continued to recede. Despite only sporadic rainfall across the region since the testing event last week, four specific monitoring locations exhibited

E. coli Testing Results for June 03, 2026

This Wednesday, June 3, 2026, water levels at all but one of our monitored sites had receded back to normal levels for this time of year. Notably, E. coli levels

E. coli Testing Results for May 28, 2026

After five days of rainfall, E. coli bacteria levels in the North Fork, South Fork, and Main-stem of the Shenandoah River have risen significantly since our tests on May 19.

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