Laboratory Well Water Testing and Analysis

When you want your home or community well water tested for arsenic, bacteria, or nitrate, the samples must be taken to a certified lab for testing and analysis. If you are purchasing or refinancing a home which uses well water or are concerned about unhealthy compounds in your well water, you'll need testing performed by a certified lab.

You can collect and submit well water samples yourself or arrange for our water quality professionals to do it for you.

We work with and recommend the following labs.

AM Test Laboratories
Kirkland, WA 98034
Phone: (425) 885-1664

Spectra Laboratories
Tacoma, WA 98421
Phone: (253) 272-4850

How to submit your own well water samples to a lab. Collecting and submitting well water samples for arsenic and nitrate testing is simple. Collecting for bacteria testing requires more attention to detail to ensure samples are not contaminated. Use the provided containers and follow the instructions carefully.

1. Contact the lab in your area (Kirkland or Tacoma). They will provide sample bottles, preservatives, labels, and chain-of-custody forms for the testing.
2. Submit your well water samples to the lab, as instructed.
3. Allow 5 - 10 business days from the date the lab receives your samples to receive results.

Schedule Northwest Water Treatment to collect and submit your samples. Save time (and possible headaches) by having our team collect your well water samples and drive them directly to the lab for you. (This service is only available if your water well is in our service area - see right column.) Allow 5 - 10 business days for processing. We will email your lab test results to you.
Fees: $150 service fee plus lab fees for the specific tests.

If you are considering getting a water treatment system, we can perform free in-the-field water testing and analysis while we are on-site to collect well water samples for your lab tests.

If your well water has unacceptable levels of arsenic, bacteria, and/or nitrate, we will, at your request, give you a quote (at no charge) for a water treatment system designed to address your specific water quality issues.

Contact us today for more information and to schedule one of our water quality specialists to collect your well water samples and deliver them to the lab for testing.