Individual Water Systems

Individual wells provide water to 24% of Clark County residents.  Our staff provide resources and answer questions on water quality issues, how to disinfect water systems, protection of well source from surface activities, etc.

The well seal is important for protection of the water source.

Water quality testing

New and replacement individual wells must be tested for water quality (Coliform bacteria, arsenic, and nitrate). Applicants are responsible for having  water samples collected for analysis by a Washington State Certified Laboratory.  Some local laboratories are listed on the Service Provider list.

How to apply for a WAVE (Water Adequacy and Verification Evaluation)  

To apply for a WAVE, submit all of the items listed on the WAVE Submittal Materials Checklist along with a completed Water Services Application. You will be notified of the evaluation results within 3-5 business days. During times of the year when the volume of applications is higher, the review process can take longer. If you have questions about the timeline for your application, please contact before submitting your application, and we can provide some information on the likely timeline for completion of your application review.  Be aware, Clark County Community Development often requires a WAVE by Clark County Public Health prior to the issuance of building permits.

Well Log Search - a well report that describes the location, ownership, construction details and lithology of a completed well

Homeowner’s Guide to Well Construction