Friends of the Shenandoah River

Friends of the Shenandoah River
Celebrating 35 Years
of Monitoring Our River's Health
Our Mission
To Protect and Restore the Aquatic Environment of the Shenandoah River
Our Mission
To Protect and Restore the Aquatic Environment of the Shenandoah River
Friends of the Shenandoah River
Celebrating 35 Years
of Monitoring Our River's Health

Water Quality Monitoring

Our Laboratory

The scientifically proven testing procedures implemented at our laboratory assures that quality data are being compiled.

About FOSR

The Friends of the Shenandoah River is a volunteer, non-profit, scientific organization dedicated to the preservation and protection of the Shenandoah River and its tributaries.

"KNOW BEFORE YOU GO!" E. coli Testing Program Updates

Only One River Site had Exceedingly High E. coli Levels

🛑 KNOW BEFORE YOU GO! Planning to hit the river for the 4th of July weekend? 🦅 🗽🎆 🎇🍔 🌭 🍉 🥤 🥳 Before you pack up the family and gear ☀️🕶️🎣🚣‍♂️, check out the

A Mixed Bag of E. coli Results Across 14 Monitored Sites

🛑 KNOW BEFORE YOU GO! Yesterday’s water samples across our 14 monitored sites brought in a mixed bag of E. coli results. ⚠️ Notably, the high bacteria levels were widespread: in every single county we

Drought Conditions Continue – E. coli levels on Main River Channels below the threshold

  💧Drought conditions continue, causing decreasing water levels, as pictured. On the bright side, the measured E. coli levels at all the South Fork, North Fork and Main-stem River sites tested were well below the

News

Limnofasciculus delicatus

A Novel Algae Species Discovered

Reported in Interstate Commission on the Potomac River Basin Newsletter, The Potomac News Reservoir, June 18, 2026 Research led by the Christova Lab at George Mason University recently discovered a novel algae species in the

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