Concerning on-site wastewater treatment system inspections.

 S-4123.1

SENATE BILL 6291

State of Washington

69th Legislature

2026 Regular Session

By Senators Lovelett and Shewmake

Read first time 01/22/26. Referred to Committee on Local Government.

AN ACT Relating to on-site wastewater treatment system inspections; and amending RCW 70A.105.110 .

BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF WASHINGTON:

Sec. 1. RCW 70A.105.110 and 2019 c 442 s 20 are each amended to read as follows:

(1) The local board of health shall ensure that individuals who conduct inspections of on-site wastewater treatment systems or who otherwise conduct reviews of such systems are qualified in the technology and application of on-site sewage treatment principles. A certificate of competency issued by the state board of registration for professional engineers and land surveyors is adequate demonstration that an individual is competent in the engineering aspects of on-site wastewater treatment system technology.