Or. Admin. R. 340-073-0026
Septic tanks must be constructed of concrete, fiberglass, or other non-corrosive materials approved by DEQ.
ORS 454.625 & 468.020
ORS 454.615
DEQ 29-2025, amend filed 10/01/2025, effective 01/01/2026
DEQ 11-2004, f. 12-22-04, cert. ef. 3-1-05
DEQ 27-1994, f. 11-15-94, cert. ef. 4-1-95