Display Name: Groundwater Drinking Water Source Areas
Description: This layer includes Oregon Department of Environmental Quality (DEQ) and Oregon Health Authority (OHA) Drinking Water Program Source Water Assessment drinking water source area results for community (C), non-transient non-community (NTNC), transient non-community (TNC), and some state-regulated (SP) public water systems (PWS) for groundwater public water systems that were active in June 1999 (when Oregon's Source Water Assessment Plan was approved by EPA). Data is updated and modified as needed.<br><br>(DEQ, 2019)