- Map of the Program Area
- Project Background
- Nitrate Treatment Pilot Program (Archive)
Attention Lower Valley Growers! Free Deep Soil Sampling Available
Click here or call 509-829-9025 for details
Upcoming Groundwater Advisory Committee Meetings:
- February 19, 2015 5:00 PM
Location: Denny Blaine Board Room, 810 E Custer Ave, Sunnyside, WA 98944
Water Quality Testing – Q&A
Why should I test my water?
If you are on a private shallow well and have a household member considered a high public health risk, it is a good idea to test your water for nitrate. It is a colorless, odorless, and tasteless chemical that is only detectable by chemical testing. It is also a good idea to test for coliform.
How do I have my water tested?
Contact a certified testing laboratory for more information. The testing laboratory will provide you with the water bottle and instructions to properly test your water.
Where do I go to get my water tested?
After obtaining a water sample as directed by the certified lab, you will return the sample to the lab for analysis.
How much does the water test cost?
The water test for nitrate and coliform costs roughly $60
What do my test results mean?
Nitrate results above 10 parts per million is above the Maximum Contaminant Level (MCL) and is considered a hazard.
For more information about nitrate, please read the Washington State Department Of Health’s publication