Revised Code of Washington

Wash. Rev. Code § 90.58.160 (2026)

Prohibition against seabed mining for hard minerals and surface drilling for oil or gas, where

✓ current as of May 2026

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(1) Seabed mining for hard minerals and surface drilling for oil or gas is prohibited in the waters of Puget Sound north to the Canadian boundary and the Strait of Juan de Fuca seaward from the ordinary high water mark and on all lands within one thousand feet landward from said mark.

(2)(a) For purposes of this section, "hard minerals" means natural deposits of valuable minerals including, but not limited to, metals and placer deposits of metals, nonmetallic minerals, gemstones, ores, sediments, gold, silver, copper, lead, iron, manganese, silica, chrome, platinum, tungsten, zirconium, titanium, garnet, and phosphorus.

(b) "Hard minerals" does not include rock, gravel, sand, silt, coal, or hydrocarbons.

[ 2021 c 181 s 3; 1971 ex.s. c 286 s 16.]

Notes of Decisions

Cited in 1 case, 1975–1975 · leading case: Hama Hama Co. v. Shorelines Hearings Bd., 536 P.2d 157 (Wash. 1975).

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Hama Hama Co. v. Shorelines Hearings Bd., 536 P.2d 157 (Wash. 1975). · cites it 2× “140(6) contains a reference to RCW 90.58.160(1) which, unfortunately, does not exist.”

— Wash. Rev. Code § 90.58.160(1) — 1 case

Hama Hama Co. v. Shorelines Hearings Bd., 536 P.2d 157 (Wash. 1975). “140(6) contains a reference to RCW 90.58.160(1) which, unfortunately, does not exist.”

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