Friends of the Shenandoah River

E. coli Testing Results for July 09, 2025

E. coli Levels Decrease, But Some Sites Still Elevated
The North Fork of the Shenandoah River at Strasburg Park illustrates a striking contrast between conditions observed one week ago and those seen today, highlighting noticeable changes in water level, clarity, and flow, a vivid testament to the river’s dynamic nature.

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 still exceeded the EPA’s recommended precautionary “do not exceed” freshwater Beach Action Value (BAV) of 235 CFU of E. coli bacteria per 100 mL of water sample for early alert to recreators, including families with children.

  • FW14, South Fork of the Shenandoah River at Front Royal public boat landing off Luray Ave. Warren County VA – 325.5 MPN CFU E. coli 100 mL/sample 
  • FPHCTL, Hawksbill Creek, Luray – Hawksbill Creek Greenway Pocket Park downstream pedestrian bridge Page County VA – 461.1 MPN CFU E. coli 100 mL/sample
  • FSDR, North Fork of the Shenandoah River @ Deer Rapids public boat landing off Deer Rapids Road (Rt. 644) Shenandoah County VA – 920.8 MPN CFU E. coli 100 mL/sample

These results reflect the E. coli levels at the specific date, time, and conditions under which the samples were taken. As environmental conditions change, E. coli concentrations change can vary significantly.  Localized rain events, like those occurring recently, affect E. coli levels in local streams and in the larger bodies of waters, such as the Shenandoah River, that these streams flow into.

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E. Coli Test results for July 11, 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

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