US lawWashingtonRegulationsTitle 332 — NATURAL RESOURCES, BOARD AND DEPARTMENT OFChapter 332-16 — MINERAL PROSPECTING LEASES AND MINING CONTRACTS332-16-225WAC 332-16-225WAC 332-16-225. Plugging and abandonment procedures for exploration drill holesLast amended: 1987Year: 2026Length: 21 wordsOfficial source All exploration drill holes shall be properly plugged and abandoned by the lessee in accordance with procedures approved by the department.PreviousWAC 332-16-215NextWAC 332-16-235