- (1) All wells which are not in use, or are temporarily out of service, must be securely capped so that no contamination can enter the well.
- (2) Capping must be affixed by solid welds or equal seal to prevent unauthorized access to the well.
- (3) Temporary capping alone will not satisfy the decommissioning requirements of this chapter.
[Statutory Authority: Chapter 18.104 RCW and RCW 43.21A.080. WSR 98-08-032 (Order 97-08), § 173-160-301, filed 3/23/98, effective 4/23/98.]