Water Quality Programs

Between 1999 and 2005, each public water system in Oregon received a source water assessment report completed by the Oregon Department of Environmental Quality and Oregon Health Authority drinking water programs. The assessment gives the water system and community information on the watershed or recharge area that supplies the well, spring or intake (the “drinking water source area”) and identifies potential risks within the source area.
  • Summary of Oregon's Source Water Assessment Methodology for 1999 – 2005 reports (coming soon)
​Source Water Assessment Inventory Results as of June 2005 for Potential Contaminant Sources identified in Oregon Drinking Water Source Areas for Community and Non-transient Non-community Public Water Systems

In 2016 and 2017, the agencies are completing Updated Source Water Assessments to provide the water systems and communities more detailed information on the watershed or recharge area that supplies their well, spring or intake. DEQ opened public comment on the content and format of an USWA prototype on May 18, 2016.  This public comment period allowed partner state agencies, stakeholders, and public water providers an opportunity to help make the information more useful and relevant.  Comments received were used to improve the document.  The prototype was finalized in August 2016.

Updated Source Water Assessments will be provided to all public water systems using surface water.  For groundwater systems, OHA has prioritized new Community and Non-Transient Non-Community water systems and systems that have added a new water source since their original source water assessment was completed. 
Public water systems and local communities can use the information in the assessments to voluntarily develop place-based plans and implement drinking water protection strategies. 

Source Water Assessment results (2000-2005)

Updated Source Water Assessments (2016-2017)

PWS 00554 City of Nehalem PWS 00254 City of Depoe Bay
PWS 00568 Beverly Beach Water District
PWS 00564 Bay Hills Water Association
PWS 00722 Hiland Water Corp. – Boulder Creek
PWS 00925 Southwest Lincoln County Water District
PWS 01072 Johnson Creek Water Service
PWS 00603 Panther Creek Water District
PWS 00609 Pacific City Joint Water-Sanitary Authority
PWS 00610 Tierra Del Mar Water Company
PWS 00556 Netarts Water District
PWS 00199 Beaver Water District
PWS 00893 Tillamook Water Department
PWS 00898 Timber Water Association
PWS 00124 Fishhawk Lake Reserve and Community
PWS 00922 City of Vernonia
PWS 05737 Berndt Creek Water Corp.
PWS 00055 City of Astoria
PWS 00063 Wickiup Water District
PWS 00062 Youngs River Lewis & Clark Water District
PWS 00932 City of Warrenton