Oregon Administrative Rules
Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY
Division 71 - ONSITE WASTEWATER TREATMENT SYSTEMS
Section 340-071-0325 - Gray Water Waste Disposal Sumps
Current through Register Vol. 63, No. 3, March 1, 2024
(1) Criteria for approval.
(2) In campgrounds or other public use areas, graywater waste disposal sumps must be identified as "sink waste disposal" by placard or sign in letters at least 3 inches in height and in a color contrasting with the background.
(3) Design and construction details for the graywater waste disposal sumps must be submitted with the permit application. At a minimum, the sump design concepts must include a receiving chamber with screen, settling chamber with tee fitting that extends about a third of the depth of the clear zone, and an absorption facility. The absorption facility may be a shallow seepage chamber or absorption trench, depending on site conditions or other considerations.
Stat. Auth.: ORS 454.625 & 468.020
Stats. Implemented: ORS 454.610, 454.615 & 454.775