Oregon Oregon Health Authority, Public Health Division
Non-Water Carried Sewage Facilities:
The construction and maintenance of earth pit privies shall comply with the following requirements:
They shall be located at least 50 feet from a well, spring, or other source of domestic water supply, and at least 50 feet from any stream, river or lake, and at least ten feet from any property line;
The pit shall have a minimum capacity of 50 cubic feet, and shall be at least five feet deep and shall be lined with lumber, concrete, steel, or other equivalently substantial material to prevent caving. The pit shall be covered by a building of substantial construction located on either a concrete or wood sill to make it as fly-tight and rodent-proof as possible from the outside. The floor and riser shall be built water impervious and fly-tight of wood, concrete, ceramic, stainless steel, or other equivalently substantial material;
The seat opening shall be equipped with a self-closing lid hinged and so constructed that when closed it will exclude flies from the pit. Vents connected to the pit shall be covered with 16 mesh copper, aluminum, or plastic wire screen and shall have a total effective cross section of at least 50 square inches. The building shall be equipped with a tight fitting, self-closing door and shall be weather-proof;
The contents of the pit shall not be permitted to overflow onto the surface of the ground or be exposed to flies or rodents;
A minimum of one-half pound of chlorinated lime shall be deposited in each pit once every 24 hours;
At the conclusion of the outdoor mass gathering, the contents of the pit shall be covered by backfilling with at least a two foot depth of earth.
In areas where high water tables are encountered, concrete vault privies, pail privies, chemical toilets or incinerator toilets shall be used in place of earth pit privies for disposal of human excreta. All vaults and receptacles of such privies shall be water-tight and constructed of reinforced concrete, plastic, fiberglass or metal:
The contents of vault privies, pail privies, and chemical toilets shall be removed by a registered sewage cesspool operator in accordance with state and local laws, ordinances, and regulations;
Chemical toilets shall be serviced daily with respect to sanitation, removal of contents, and recharging of chemical solution;
All earth pit privies, privies with water-tight receptacles, chemical toilets, and incinerator toilets shall be maintained in a sanitary condition at all times.
Water Carried Sewage Disposal Facilities: If water carried subsurface sewage disposal facilities are provided, they shall be governed by OAR 333-041-0001 through 333-041-0040, and by this reference are incorporated herein and made a part hereof.
Number and Location of Toilets and Privies:
Seven privies or toilets or any combination thereof shall be provided for each 800 persons or fraction thereof anticipated;
If camping and planned activity areas are separately designated, sixty percent of the total required toilets or privies shall be located within the designated camping area and forty percent of the total required toilets or privies shall be located in the designated planned activity area. If areas are not designated, location and spacing of toilets and privies shall be in accordance with anticipated crowd clustering or grouping, or spaced uniformly throughout the entire mass gathering site;
All chemical toilets, if provided, shall be located so as to be easily and readily serviced by servicing vehicles.
Liquid Wastes not Containing Human Excreta:
Facilities shall be provided for the disposal of all liquid wastes not containing human excreta such as, but not limited to, kitchen or cooking waste water, grease, dishwater, wash water, and bath water. These facilities shall be specifically identified by means of a sign which states “Waste Water Disposal”;
Such facilities shall consist of a seepage pit having a minimum depth of three feet and a lateral area of not less than 32 square feet. The pit shall be backfilled with clean, coarse rock and be protected by a one-fourth inch screen which is removable and will effectively trap food particles and prevent other wastes from entering the backfilled rock;
All food particles and other waste material shall be removed from the facilities at least once every 24 hours or at more frequent intervals if necessary to prevent fly and insect attraction;
Such facilities shall be located or spaced so as to uniformly serve the participants of the outdoor mass gathering;
One facility shall be provided for each 3,000 persons or fraction thereof anticipated;
At least one facility shall be located not more than 50 lineal feet from each food service facility.