Keep your well, well.
An individual well serves a single family home. To keep your drinking water safe, test your well once a year for bacteria and every three years for nitrate. See Water Quality and Testing for more information.
Get a Permit.
If you want to drill a new well, know the requirements.
Information for well owners.
- Well Care Information for Homeowners—Water Systems Council
- Well Logs—WA State Dept of Ecology
- Well Construction for Property Owners—WA State Dept of Ecology
- Private Drinking Water Wells—U.S. Environmental Protection Agency
- Private Well Class—Audio and video tutorials for well owners provided by University of Illinois and partners
Wells no longer in use can lead to contaminated groundwater and pose a safety risk to children, adults and animals.
Where do I look for abandoned wells?
- Old pump houses, storage sheds, old detached garages and small building structures on the property.
- Hand dug wells are often in lowland areas near surface water.
Look for these signs of an old well:
- A steel, 6-inch diameter, well casing.
- Old concrete or brick-lined structures.
- Old water system components (pumps, plumbing and pressure tanks).
- Open space under pump house floors.
- Wooden or cement hatch-like openings to vaults and wellheads.
Records of old wells:
- Asbuilt look-up.
- Washington State Department of Ecology Well Log Viewer.
- Neighbors who have lived in the area for many years can also be a good source of information.
What should I do if I have an abandoned well?
- You are required to decommission a well that is no longer in use.
- Contact a licensed well driller.
- Complete a Health Department Well Decommissioning Application.
Contact us at firstname.lastname@example.org or (253) 798-6470.