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Groundwater Protection in Oregon

Groundwater is vital to the public health, economy, and environment of Oregon. Oregon’s groundwater has many uses, including drinking water and other household uses, irrigation for crops, numerous industrial and commercial uses, and base flow to streams. In Oregon, the Department of Environmental Quality has the primary authority for groundwater quality protection. 

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Current News

Free Water Well Testing in Walla Walla Basin 
If you own a well in the Walla Walla River Basin of Umatilla County, we are offering free groundwater testing for approximately 100 participants. Tests include nitrate/nitrite, arsenic, pesticides, hardness and common ions, and selected metals. For more information, click on the link above to download our flyer.

Download the permission slip 
This form describes the testing in more detail and includes a release to grant access for the purposes of conducting the sampling. 

2011 Rogue Basin Groundwater Investigation Report
DEQ collected groundwater samples in the central portion of the Rogue Basin in 2011. This report provides results and recommendations based on analysis of the data collected and previous studies.

S. Deschutes/N. Klamath Groundwater Protection Project
DEQ is working with the community to protect the groundwater from nitrate contamination from traditional onsite septic wastewater treatment systems in southern Deschutes and northern Klamath counties.