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National Capital Region Network Stream Water Quality Data Package - cumulative through 2024

Published by National Park Service | Department of the Interior | Metadata Last Checked: January 25, 2026 | Last Modified: 2025-05-12T00:00:00Z
This dataset represents the perennial nontidal water quality and quantity monitoring from 2005-2024 collected by the National Capital Region Network (NCRN) Inventory and Monitoring Program. Measurements were collected at 54 sites in the National Capital Region, with 37 extant and 17 retired sites as of 2024. In 2024, measurements were collected from each extant site every-other-month but site visit frequency varied through time.

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