(1) General Standards. All self-contained, nonwater-carried toilet facilities must comply with the following requirements.
- (a) They must have water-tight chambers constructed of reinforced concrete, plastic, fiberglass, metal, or other material of acceptable durability and corrosion resistance, approved by DEQ, and designed to facilitate the removal of the wastes.
- (b) Black wastes must be stored in an appropriate chamber until removal for final treatment elsewhere. Wastes must be removed from the chamber whenever necessary to prevent overflow.
- (c) Chemicals containing heavy metals such as copper, cadmium, and zinc, must not be used in self-contained toilet facilities.
- (d) All surfaces subject to soiling must be impervious, easily cleanable, and readily accessible.
(2) Vault Toilet Facilities.
- (a) The capacity of vaults must be at least 350 gallons or, in places of employment, 100 gallons per seat.
- (b) Caustic must be added routinely to vault chambers to control odors.
(3) Chemical Toilet Facilities.
- (a) Toilet bowls must be constructed of stainless steel, plastic, fiberglass, ceramic, or other material approved by DEQ.
- (b) Waste passages must have smooth surfaces and be free of obstructions, recesses, or cross braces that would restrict or interfere with flow of black wastes.
- (c) Biocides and oxidants must be added to waste detention chambers at rates and -intervals recommended by the chemical manufacturer and approved by DEQ.
- (d) Chambers and receptacles must provide a minimum storage capacity of 50 gallons per seat.
- (e) Portable shelters housing chemical toilets must display the business name of the licensed sewage disposal service that is responsible for servicing them.
Statutory/Other Authority
ORS 454.625 & 468.020
Statutes/Other Implemented
ORS 454.615 & 454.775
History
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 9-1984, f. & ef. 5-29-84
DEQ 10-1981, f. & ef. 3-20-81