Wash. Rev. Code » Title 43 · Chapter 43.21A
Revised Code of Washington

Wash. Rev. Code § 43.21A.020 (2025)

Purpose

✓ laws through the 2025 session: 2026 session laws are not yet included
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In recognition of the responsibility of state government to carry out the policies set forth in RCW 43.21A.010, it is the purpose of this chapter to establish a single state agency with the authority to manage and develop our air and water resources in an orderly, efficient, and effective manner and to carry out a coordinated program of pollution control involving these and related land resources. To this end a department of ecology is created by this chapter to undertake, in an integrated manner, the various water regulation, management, planning and development programs now authorized to be performed by the department of water resources and the water pollution control commission, the air regulation and management program now performed by the state air pollution control board, the solid waste regulation and management program authorized to be performed by state government as provided by chapter 70A.205 RCW, and such other environmental, management protection and development programs as may be authorized by the legislature.
[ 2020 c 20 s 1030; 1970 ex.s. c 62 s 2.]
Notes of Decisions
Cited in 7 cases, 1976–2020 · leading case: Weyerhaeuser Co. v. Dep't of Ecology, 545 P.2d 5 (Wash. 1976).
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Weyerhaeuser Co. v. Dep't of Ecology, 545 P.2d 5 (Wash. 1976). · cites it 3× “Moreover, the legislature, in establishing the Department of Ecology, vested appellant with very broad authority and responsibility for managing this state’s environment. [I]t is the purpose of this chapter to establish a single state agency with the authority to manage and…”
Port of Seattle v. Pollution Control Hearings Bd., 90 P.3d 659 (Wash. 2004). “The PCHB has acknowledged that Ecology, not the PCHB, is the agency designated by the legislature to be the water pollution control agency with regard to the Clean Water Act.”
Snohomish Cnty. v. Pollution Control Hearings Bd., 386 P.3d 1064 (Wash. 2016). “Given that the legislature designated Ecology as the agency to regulate the State’s water resources, RCW 43.21A.020, “Ecology’s interpretation of relevant statutes .”
Port of Seattle v. PCHB, 90 P.3d 659 (Wash. 2004). “Because Ecology is the agency designated by the legislature to regulate the State's water resources, RCW 43.21A.020, this court has held that it is Ecology's interpretation of relevant statutes and regulations that is entitled to great weight.”
Spokane Cnty. v. Sierra Club, No. 47158-2 (Wash. Ct. App. Aug. 16, 2016). · cites it 6× “See RCW 43.21A.020; WAC 173–226–030(5), –050(1).”
Snohomish Cnty. v. Pollution Control Hr'gs Bd., No. 92805-3 (Wash. Dec. 29, 2016). “Given that the legislature designated Ecology as the agency to regulate the State's water resources, RCW 43.21A.020, "Ecology's interpretation of relevant statutes .”
Ctr. for Envtl. Law & Policy v. Dep't of Ecology, 468 P.3d 1064 (Wash. 2020). “, RCW 43.21A.020 (creating the department of ecology “to undertake, in an integrated manner, the various water regulation, management, planning and development programs [which were] authorized to be performed by the department of water resources and the water pollution control…”
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