Gunpowder River Water Quality Update: June 9, 2026

Gunpowder RIVERKEEPER® is proud to provide weekly water quality information to residents of Baltimore and Harford counties along the Gunpowder and Bush River Watersheds. Our water monitoring results help inform the public on where they can recreate safely along the River and provide indicators for possible stormwater or point-source pollution. The EPA’s Safe Swimming Criteria …

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Gunpowder River Water Quality Update: June 2, 2026

Gunpowder RIVERKEEPER® is proud to provide weekly water quality information to residents of Baltimore and Harford counties along the Gunpowder and Bush River Watersheds. Our water monitoring results help inform the public on where they can recreate safely along the River and provide indicators for possible stormwater or point-source pollution. The EPA’s Safe Swimming Criteria …

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Bacterial Sources in the Gunpowder River

Memorial Day through Labor Day, Gunpowder RIVERKEEPER® conducts weekly bacterial water quality monitoring to inform river users of conditions that are more likely to result in bacterial infection. These conditions usually occur after periods of heavy rainfall as the stormwater runoff carries surface pollutants and discharges into the waterways. E. Coli is one of a …

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Gunpowder River Water Quality Update: May 26, 2026

Gunpowder RIVERKEEPER® is proud to provide weekly water quality information to residents of Baltimore and Harford counties along the Gunpowder and Bush River Watersheds. Our water monitoring results help inform the public on where they can recreate safely along the River and provide indicators for possible stormwater or point-source pollution. The EPA’s Safe Swimming Criteria …

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Update on Gunpowder RIVERKEEPER® pursuit for Tier III Water Quality Monitoring Accreditation

Since November 2025, Gunpowder RIVERKEEPER® has been working diligently alongside the Chesapeake Monitoring Cooperative (CMC) who provides technical and logistical support to partners, communities, and individuals who want to collect, share, interpret, and use water quality data to increase understanding of Chesapeake Bay watershed health. Gunpowder RIVERKEEPER® is currently in the process of obtaining its Tier III accreditation …

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