OAR 340-073-0026
Septic Tanks

(1)

Septic tanks must be constructed of concrete, fiberglass, steel, or other non-corrosive materials approved by the department.

(2)

Steel septic tanks must be manufactured with 12-gauge or thicker steel. They must be coated inside and out with asphalt or other protective coatings that meet the American National Standards Institute UL 70 standard, Sections 25 through 43, or other coatings of equal or better performance approved by the department.

Source: Rule 340-073-0026 — Septic Tanks, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=340-073-0026.

340‑073‑0025
Tank Construction 340‑073‑0026
Septic Tanks 340‑073‑0030
Dosing Septic Tank 340‑073‑0035
Distribution Boxes, Drop Boxes, and Diversion Valves: Distribution Boxes 340‑073‑0040
Distribution Boxes, Drop Boxes, and Diversion Valves: Drop Boxes 340‑073‑0041
Distribution Boxes, Drop Boxes, and Diversion Valves: Filter Fabric 340‑073‑0045
Distribution Boxes, Drop Boxes, and Diversion Valves: Diversion Valves 340‑073‑0050
Distribution Boxes, Drop Boxes, and Diversion Valves: Dosing Tanks 340‑073‑0055
Distribution Boxes, Drop Boxes, and Diversion Valves: Dosing Assemblies: Effluent Pumps, Controls and Alarms, and Dosing Siphons 340‑073‑0056
Distribution Boxes, Drop Boxes, and Diversion Valves: Effluent Filters 340‑073‑0060
Distribution Boxes, Drop Boxes, and Diversion Valves: Pipe Materials and Construction 340‑073‑0065
Non-water-Carried Waste Disposal Facilities, Materials, and Construction: Privies and Portable Toilet Shelters 340‑073‑0070
Non-water-Carried Waste Disposal Facilities, Materials, and Construction: Unsealed Earth Pits for Privies 340‑073‑0075
Non-water-Carried Waste Disposal Facilities, Materials, and Construction: Self-Contained Nonwater-Carried Toilet Facilities 340‑073‑0080
Non-water-Carried Waste Disposal Facilities, Materials, and Construction: Construction of Gray Water Waste Disposal Sumps 340‑073‑0085
Non-water-Carried Waste Disposal Facilities, Materials, and Construction: Flexible Membrane Liners for Sand Filters Treating Septic Tank Effluent
Last Updated

Jun. 8, 2021

Rule 340-073-0026’s source at or​.us