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(1) An adequate and potable supply of water must be provided.

(2) Before a license may be issued, a YCF using an individual, shared, or multiple user water supply must submit the following to the department or its designee:

(a) satisfactory coliform bacteria and nitrate test results as specified in ARM Title 17, chapter 38, subchapter 2; and

(b) the results of an onsite sanitary survey of the water supply system to detect sanitary deficiencies.

(3) A supplier of an individual, shared, or multiple user water supply shall conduct a coliform bacteria test of the system at least twice a year with one sample collected between April 1 through June 30 and the second sample collected between August 1 through October 31, and conduct a nitrate test of the system at least once every three years. Water tests must be analyzed at a certified laboratory. A supplier shall keep sampling result records for at least three years.

(4) A public water supply system must be constructed and operated in accordance to current applicable laws as regulated by the Montana Department of Environmental Quality.

(5) Nonpotable water sources must be marked "not for human consumption".

(6) Plumbing must be installed and maintained in a manner to prevent cross connections between the potable water supply and any nonpotable or questionable water supply or any source of pollution through which the potable water supply might become contaminated. The potable water system must be installed to preclude the possibility of backflow. A hose may not be attached to a faucet unless a backflow prevention device is installed.

(7) A water supply system is determined to have failed and requires treatment, replacement, repair, or disinfection, when the water supply becomes unsafe, or when it exceeds the maximum contaminant levels specified in ARM Title 17, chapter 38, subchapter 2. A water supply system is inadequate when it is found to be less than 20 psi measured at the extremity of the distribution line during the instantaneous peak usage.

(8) Extension, alteration, repair, or replacement of a water supply system or development of a new water supply system must be in accordance with all applicable state and local laws.

(9) Bottled and packaged potable water must be obtained from a licensed and approved source and be handled and stored in a way that protects it from contamination.

History: 52-2-111, 52-2-603, 52-2-622, MCA; IMP, 52-2-113, 52-2-603, 52-2-622, MCA; NEW, 2011 MAR p. 387, Eff. 3/25/11.

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