Hello, 

Here is the link to our website that has our calendar of upcoming nitrate screening events. You can also browse through the website and find information on various contaminants you may want to test for if you have specific concerns. 

Link to our website:https://wellwater.oregonstate.edu/

Our office in Corvallis does offer free nitrate screenings year round during normal business hours if you cannot make one of our scheduled events. 

If you would like any additional testing you will need to go to a private lab. Here is the link to the Oregon Health Authority Website where you can find the list of accredited drinking water labs in Oregon. 

Link: https://www.oregon.gov/oha/ph/healthyenvironments/drinkingwater/monitoring/pages/labs.aspx