Do you have an improperly abandoned well?

Occasionally we hear from residents who have old wells on their property. There are thousands of abandoned wells in WA State. Improperly abandoned wells can provide a direct pathway for contamination into an aquifer. Only professional well drillers using specialized materials and equipment should decommission wells. Landowners in WA State may be responsible for any injury or groundwater contamination caused by an improperly decommissioned well. WAC 173-160-261/381 and Chapter 18.104 RCW. If you suspect you have a well on your property that needs to be properly decommissioned, contact WA DOE or visit

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