Academy of Natural Sciences — Patrick Center for Environmental Research

Leading freshwater research institute providing biomonitoring, water quality analysis, and stream ecology expertise for regional watershed projects.

The Patrick Center is one of the nation's foremost freshwater research institutions, founded in 1948 by pioneering limnologist Ruth Patrick. Its scientists provide biomonitoring services, water quality analysis, fish and invertebrate identification, and custom research studies for watershed groups, agencies, and private clients throughout the mid-Atlantic region. Services include Rapid Bioassessment Protocols, continuous water quality monitoring, stream ecological assessments, and emerging contaminant analysis. The Center also maintains one of the largest freshwater algae collections in the world. Watershed groups can contract with Patrick Center scientists for technical studies that support grant applications or regulatory petitions.