Water Testing Information

PUBLIC NOTICE

Public Health is slowing the spread of Covid-19

If you have any questions
Call: (509) 422-7140

We have set up a station inside our front door so that Water Tests can be dropped off, test bottles are also available there.

  • Coliform/Bacteria
    • Monday - Thursday 7:30 a.m. ~ 3:00 p.m. - $35.00 each
  • Nitrate (MUST be kept cold/on ice)
    • Monday - Wednesday 7:30 a.m. ~ 3:00 p.m. - $35.00 each

  1. Click here for Help with How to fill out your lab slip (Public Water Systems)
  2. Click here for Help with How to fill out your lab slip (Private wells)

Please do not attempt to send water samples through the mail as they are too old to process when they arrive. If you have any questions regarding the above information, please call (509) 422-7140.

Water Runs - For your convenience we have arranged for a water sample pickup service at the city halls listed below. You may drop off your samples according to the following schedule:

**Water sample pick up to resume August 2, 2021**


Water Sample Pickup Schedule – First Monday of Each Month 


Oroville City Hall 9:00 a.m. to 11:30 am
Tonasket City Hall 9:00 a.m. to 12:00 noon
Brewster City Hall 9:00 a.m. to 12:30 pm
Pateros City Hall 9:00 a.m. to 1:00 pm
Winthrop City Hall 9:00 a.m. to 1:30 pm
Twisp City Hall 9:00 a.m. to 2:00 pm


If a Monday pickup service falls on a holiday, there will be no service that day; and they will be picked up the next day.

Please Note: If nitrate samples are left at the city halls for pickup, they MUST be kept cold, either by refrigeration or by leaving them on ice. 

Department of Ecology Well Log Database Link: http://apps.ecy.wa.gov/welllog/

Link to SENTRY for information on public water systems: https://fortress.wa.gov/doh/eh/portal/odw/si/Intro.aspx

For more information about water adequacy or testing please call (509) 422-7395.