Washington § 70A.115.020 - Comprehensive regulation — Department duties.

Full text of Washington Revised Code of Washington § 70A.115.020 — Comprehensive regulation — Department duties., with citation guidance and answers to common questions.

§ 70A.115.020. Comprehensive regulation — Department duties.

(1) For the protection of human health and the environment the department shall:
(a) Establish and provide for the comprehensive regulation of large on-site sewage systems including, but not limited to, system siting, design, construction, installation, operation, maintenance, and repair;
(b) Control and prevent pollution of streams, lakes, rivers, ponds, inland waters, salt waters, water courses, and other surface and underground waters of the state of Washington, except to the extent authorized by permits issued under this chapter;
(c) Issue annual operating permits for large on-site sewage systems based on the system's ability to function properly in compliance with the applicable comprehensive regulatory requirements; and
(d) Enforce the large on-site sewage system requirements.
(2) Large on-site sewage systems permitted by the department may not be used for treatment and disposal of industrial wastewater or combined sanitary sewer and stormwater systems.
(3) The work group convened under RCW 70A.110.080(4) to make recommendations to the appropriate committees of the legislature for the development of certification or licensing of maintenance specialists shall include recommendations for the development of certification or licensing of large on-site sewage system operators.
[ 2020 c 20 s 1341; 2007 c 343 s 3. Formerly RCW 70.118B.020.]

Source: official Washington text · Last verified 2026-08-27

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Frequently Asked Questions About Washington § 70A.115.020

What does Revised Code of Washington § 70A.115.020 cover?

Section 70A.115.020 ("Comprehensive regulation — Department duties.") is part of the Revised Code of Washington, the codified statutory law of Washington. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Washington § 70A.115.020?

A common citation format is "Revised Code of Washington § 70A.115.020" (Washington). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Washington law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Washington official source linked on this page or consult a licensed Washington attorney.

How does Washington § 70A.115.020 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Washington can advise on how this section applies to you. Contact your state or local bar association for a referral.

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