Washington § 70A.115.040 Rules.

Washington Statutes

§ 70A.115.040 — Rules.

Washington § 70A.115.040

Title 70AENVIRONMENTAL HEALTH AND SAFETY

Ch. 70A.115LARGE ON-SITE SEWAGE DISPOSAL SYSTEMS

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Bluebook

Wash. Rev. Code § 70A.115.040 (2026).

Text

(1)For the protection of human health and the environment, the secretary shall adopt rules for the comprehensive regulation of large on-site sewage systems, which includes, but is not limited to, the siting, design, construction, installation, maintenance, repair, and permitting of the systems.

(2)In adopting the rules, the secretary shall, in consultation with the department of ecology, require that large on-site sewage systems comply with the applicable sections of chapter 90.48 RCW regarding control and prevention of pollution of waters of the state, including but not limited to:

(a)Surface and groundwater standards established under RCW 90.48.035 ; and

(b)Those provisions requiring all known, available, and reasonable methods of treatment.

(3)In adopting the rules, the secreta

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(1) For the protection of human health and the environment, the secretary shall adopt rules for the comprehensive regulation of large on-site sewage systems, which includes, but is not limited to, the siting, design, construction, installation, maintenance, repair, and permitting of the systems.

(2) In adopting the rules, the secretary shall, in consultation with the department of ecology, require that large on-site sewage systems comply with the applicable sections of chapter 90.48 RCW regarding control and prevention of pollution of waters of the state, including but not limited to:

(a) Surface and groundwater standards established under RCW 90.48.035 ; and

(b) Those provisions requiring all known, available, and reasonable methods of treatment.

(3) In adopting the rules, the secretary shall ensure that requirements for large on-site sewage systems are consistent with the requirements of any comprehensive plans or development regulations adopted under chapter 36.70A RCW or any other applicable comprehensive plan, land use plan, or development regulation adopted by a city, town, or county.