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City of Winchester, VirginiaOpen
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Virginia Department of Environmental Quality · via Virginia State Data

Implementation Watersheds (IP)

Polygon layer representing all watershed Boundaries for the Implementation Watersheds, including Approved, In Progress and Completed Implementation Areas. Click Here to see the Data Facts Sheet.

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  • CSV
  • ZIP
  • GeoJSON

Updated Oct 17, 2026

Virginia Department of Environmental Quality · via Virginia State Data

TMDL Watersheds

This dataset depicts TMDL watershed boundaries. A TMDL watershed is the area covered by a TMDL equation. It consists of one or more impaired streams that have an assigned Cause Group Code (CGC). The CGC is the link…

  • HTML
  • ArcGIS
  • CSV
  • ZIP
  • GeoJSON

Updated Oct 17, 2026

Prototype by Datopian · not an official government website · data from opendata.winchesterva.gov