Monitoring

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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2026 Anadromous Fish Spawn Monitoring Round Up

Thanks to Maryland Department of Natural Resources (MDNR) Fish Biologists Jeffrey Horne, Marek Topolski, Marissa Ponte, and Shannon Moorhead and all of the volunteers who came out to help us collect samples and data to inform Fisheries’ study of the spawning habits of anadromous fish (those that swim upriver from saltwater to freshwater for the …

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Chesapeake Water Watch Publishes 2025 Data Report

Gunpowder RIVERKEEPER® was pleased to receive our data report from Rae Terracina, the Chesapeake Water Watch Program Manager at Smithsonian Environmental Research Center. The data, reproduced below, show the percentage of samples for Chlorophyll-a and turbidity that fall over or under the EPA thresholds for those metrics. The report also includes a map showing the …

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Gunpowder RIVERKEEPER® partners with Nitrate Watch

Gunpowder RIVERKEEPER® is proud to partner with the IZAAK Walton League of America (IWLA) to join their Nitrate Watch program. Nitrate Watch is a participatory science program aimed at measuring the concentrations of nitrogen found in water bodies within the Chesapeake Bay watershed. Gunpowder RIVERKEEPER® is thrilled to expand its monitoring of the Bird, Bush, …

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Gunpowder RIVERKEEPER® Begins Anadromous Fish Spawn Surveying with Maryland Department of Natural Resources Fisheries

On March 3rd, Gunpowder RIVERKEEPER® staff and volunteers met at Jerusalem Mill for our first outing with the Fisheries crew from Maryland Department of Natural Resources to conduct anadromous fish spawn surveying. Staff Brady Bayne, Joe Ottomano, RIVERKEEPER@ Theaux Le Gardeur, and volunteers Kevin Roeder, and Bill Temmink met with Fish Biologists Jeffrey Horne, Marek …

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