OAR 291-061-0300
Plumbing and Disposal of Wastes


All liquid wastes resulting from food preparation, cleaning and rinsing utensils, floors, flush toilets, lavatories, and air conditioners shall be disposed by public sewer systems or by individual disposal system in compliance with ORS Chapter 454 (Sewage Treatment and Disposal Systems) and requirements of the State Department of Environmental Quality.


All plumbing must comply with the State Plumbing Specialty Code. It shall be so designed, installed, and maintained as to prevent contamination of:


The water supply through interconnections and backsiphonage from fixtures, including dishwashing and sinks;


The establishment’s environment, equipment, and food due to sewer leakage and blockage.


Steam tables, steam kettles, automatic peelers, waste grinders, aspirators, dishwashing machines, chemical injectors, hose bibs, or other devices connected to the water supply system shall be equipped with backflow prevention devices approved by the State Health Division and capable of preventing backflow to the fixture. Backflow devices shall be functional and in good repair at all times. Atmospheric vacuum breakers will be installed at least six inches above the free draining outlet or overflow rim of the fixture. Vacuum breakers serving hose bibs will be located on an elevated tower at least six inches above the highest point at which the hose will be used. Hoses or other equipment having shutoff valves will be protected by airgaps, airbreaks, pressure-type vacuum breakers, reduced pressure devices or equivalent protection.


Drainlines serving steam tables, ice bins, food preparation sinks, dishwashers, and any other equipment containing food, food utensils, or food contact surfaces shall be indirectly drained via airbreaks or airgaps as necessary to ensure that waste may not be drawn or forced back into the equipment.


All garbage and trash shall be kept in watertight, nonabsorbent, and easily washable receptacles. All receptacles for storage or garbage outside of room protected from fly and rodent entry shall be covered with close-filling lids pending removal. Removal shall be frequent and the holding area shall be kept clean.


All garbage receptacles shall be washed when emptied, and steamed or treated with a disinfectant, if necessary, to prevent a nuisance.


Equipment sufficient to prevent littering of premises with rubbish, garbage, or other refuse and wastes shall be provided and maintained. All rubbish and garbage storage containers shall be located in hard surfaced area in order to facilitate removal of spillage.
[Publications: Publications referenced are available from the agency.]

Source: Rule 291-061-0300 — Plumbing and Disposal of Wastes, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=291-061-0300.

Last Updated

Jun. 8, 2021

Rule 291-061-0300’s source at or​.us