Okanogan County Public Health Laboratory
- Certification
- State certified list checked September 29, 2026
- Certificate
- WA00133 Washington program
- Tests listed
- 2 Coliform Bacteria and more
- Homeowner samples
- Yes Drop-off
About Okanogan County Public Health Laboratory
Okanogan County Public Health Laboratory is a county health department lab in Okanogan, WA (Okanogan County). It is on the Washington drinking water program's list of certified laboratories (certificate WA00133), and we last checked the list on September 29, 2026.
The lab takes samples from homeowners.
Before you go: Accredited by the Washington Department of Ecology Laboratory Accreditation Program for drinking water analyses (EPA lab ID WA00133, DOH lab number 093): Microbiology, Inorganic chemistry. Scope expires 2027-06-30. Listed by Ecology as accepting samples from the public. County health laboratory; the usual place for the yearly coliform test and a nitrate test on a private well.
This profile is built from the official state list of certified drinking water laboratories, checked on September 29, 2026. Well Water Insider does not rate or endorse labs. Run this lab? Claim the profile to add prices, turnaround times, hours and a description.
Certification and services
State certified- Certification number
- WA00133
- Certified by
- Washington drinking water program
- Certified for
- Microbiology, Inorganic chemistry
- Lab type
- County Health
- Last verified
- September 29, 2026
Listed on the official state certified laboratory list.
How to test your water here
How this lab takes samples, based on its listing. Call to confirm hours, bottles and prices.
Published lab fees in Washington: $21 to $55 for a bacteria test and $21 to $55 for nitrate. Washington DOH list of certified labs; the Thurston County water lab charges $32 for each test. Prices at this lab may differ.
- 1
Call for the right bottles
Bacteria samples need a sterile bottle from the lab. Chemistry samples usually take a clean container the lab supplies.
- 2
Collect from a cold tap before treatment
Skip softeners and filters. Remove the aerator, run the water 3 to 5 minutes, then fill without touching the inside of the cap.
- 3
Keep it cold and deliver within 24 hours
Bacteria samples are time-sensitive. Use a cooler with ice packs and hand it in or ship it the same day.
- 4
Read the report against the standards
Compare results with EPA drinking water limits. If anything is over, our problem pages explain what it means and how to treat it.
Tests this lab is listed for
From the state certification list and the lab's own listing. Ask which ones it runs for homeowners.
Coliform Bacteria
Total coliform and E. coli. The test the CDC recommends every year for every private well. Learn more
Nitrate / Nitrite
From fertilizer, manure and septic systems. The EPA limit is 10 mg/L as nitrogen. Learn more
Location
1234 South Second, Okanogan, WA 98840
Lab address
Questions about Okanogan County Public Health Laboratory
Is Okanogan County Public Health Laboratory state certified?
Yes. It is on the Washington list of laboratories certified for drinking water testing, last checked September 29, 2026.
What can Okanogan County Public Health Laboratory test well water for?
Its listing covers coliform bacteria and nitrate / nitrite. Call to confirm prices and which tests it runs for private well owners.
Can I bring my own well water sample?
Yes, the listing says it takes homeowner samples. Get the right bottle from the lab first, especially for bacteria.
How do I contact Okanogan County Public Health Laboratory?
Call (509) 422-7140 and visit the lab's website. The address is 1234 South Second, Okanogan, WA 98840.