Oregon Oregon Health Authority, Public Health Division

Rule Rule 333-039-0015
Water Supply


Required Amounts:


A minimum of 12 gallons per person per day shall be available for the anticipated assembly;


Storage facilities equal to one day’s total water usage shall be provided, unless a greater or lesser amount, with a minimum of five gallons per person per day, is determined by the Division as sufficient or necessary, based on the availability and quantity of the reserve water supply and the required water demands for toilets, food vendors, camping areas and other facilities;


A Division approved well or water system may be used as a source of water, or in addition to Division approved outside sources, to meet all requirements;


An amount of water equal to one day’s total usage shall be kept in reserve at all times.


Bacteriological and Chemical Requirements:


All water provided shall give a negative result for the presence of coliform bacteria when subjected to standard laboratory test procedures for detecting the presence of coliform bacteria and shall be from sources and in containers approved by the Division;


Water provided shall not contain the following substances in excess of amounts listed. The organizer shall provide a laboratory analysis report as evidence of this: Substance Concentration in mg/1:


Arsenic — 0.1;


Cadmium — 1.0;


Chloride — 250.0;


Copper — 1.0;


Cyanide — 0.01;


Fluoride — 1.7;


Iron — 0.3;


Lead — 0.05;


Selenium — 0.01;


Nitrate (NO3) — 45.0;


Total Dissolved Solids — 500.0;


Zinc — 5.0.


Construction, Maintenance, and Design:


All parts of the water supply system shall be constructed of non-toxic materials;


All water distribution lines and fittings shall be constructed of galvanized wrought iron, galvanized steel, copper, or NSF approved plastic pipe. All plastic pipe and fittings must bear the NSF seal;


Pressure tanks and storage tanks shall be constructed of non-toxic materials. Tanks which have previously been used to contain toxic substances shall not be used;


Prior to placing the water supply system into use, all portions of the system including storage tanks and distribution system shall be disinfected by adding a chlorine solution of not less than 50 mg/1 and retaining the mixture within all portions of the system for at least 24 hours. Following disinfection, the system is to be thoroughly flushed of the chlorine solution;


Hydrants equipped with self-closing faucets shall be provided at a ratio of not less than one for every 250 persons or fraction thereof anticipated;


Each faucet shall be mounted on a minimum 36 inch riser. The riser is to be securely fastened to a supporting structure equal in strength to a four inch by four inch timber which is securely anchored in the ground;


Each faucet and riser shall be accompanied by a seepage pit located directly beneath the faucet which shall have a minimum inside diameter of 12 inches and a minimum depth of three feet and shall be backfilled with clean coarse rock;


All water distribution lines shall be installed at a minimum depth of 12 inches in the soil and shall be covered;


If camping and activity areas are separately designated, 60 percent of the total required faucets shall be located within the area designated for camping, and 40 percent of the total required faucets shall be located in the area designated for activities;


A minimum of one faucet shall be located not more than 25 lineal feet from each food service facility and a minimum of one faucet shall be located not more than 25 lineal feet from any emergency medical facility;


Garden hoses, flexible hoses, pipes, or similar devices shall not be connected to any faucet or any other portion of the water supply system for personal convenience or any other reason;


A minimum pressure of 20 pounds per square inch shall be maintained at all times and at all points within the water distribution system.

Last accessed
Jun. 8, 2021