Statewide Groundwater Quality Monitoring

Recent Statewide Groundwater Quality Monitoring Reports

• Statewide Groundwater Quality Monitoring: Southern Deschutes County – 2023-2024
• Statewide Groundwater Quality Monitoring: Klamath Basin – 2019-2022
• Statewide Groundwater Quality Monitoring: Mid-Willamette Basin – 2017
  

Accessing data on groundwater monitoring

Groundwater quality monitoring in different regions of Oregon have been conducted by DEQ for decades. Data from these studies is available in three ways:

Interactive report map 

Use the interactive map above to download reports for your area of interest. You can use the map on this page or open the map in a separate browser for a larger view.

DEQ Laboratory data

Accessing the DEQ Laboratory database using the Ambient Water Quality Monitoring System

Email request

Request a data printout by emailing the program at groundwater.monitoring@deq.oregon.gov.