E. coli Testing Results for July 22, 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 a notable spike in E.

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 also decreased at every location.

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. Out of 14 sites monitored

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 Fork, and Main Stem of

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 tested on Thursday, September 18,

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

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 tested, which were all below

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 of water sample. As in

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 E. coli bacteria per 100mL

In addition to lower water levels, mostly clearer conditions, and cooler temperatures this week, we observed a significant change in the E. coli level at our Hawksbill Creek site near the Luray-Hawksbill Greenway Pocket Park.

While collecting water samples yesterday along the North Fork, South Fork, and Main-stem of the Shenandoah River, we couldn’t help but notice how many people were out enjoying the River! From fishing and kayaking to

At only one River site this week, the northernmost testing site on the Main-stem Shenandoah River, FC08 Castleman’s Ferry public boat launch in Clarke County VA, the E. coli level of 365.4 CFU/100mL exceeded the

Folks, the E. coli levels measured for the water samples collected and tested yesterday, July 16, may no longer represent current water quality. It is important to remember that the water quality results reflect E.

There was a noticeable decrease in the E. coli levels at all of the sites monitored yesterday, Wednesday July 09, compared to a week ago. However, the E. coli level at three of the sites

All four sites tested on the Shenandoah River Main-stem, along with three sites on the South Fork and three on the North Fork, had elevated E. coli levels exceeding the EPA’s recommended “do not exceed”