A. Definitions: For the purpose of this Section the following definitions shall apply:
BACKFLOW: Water of questionable quality, wastes or other contaminants entering a public water supply system due to a reversal of flow.
CROSS-CONNECTION: A connection or arrangement of piping or appurtenances in which a backflow could occur.
SAFE AIR GAP: The minimum distance of a water inlet or opening above the maximum high water level or overflow rim in a fixture, device or container to which public water is furnished which shall be at least two (2) times the inside diameter of the water inlet pipe, but shall not be less than one inch (1") and need not be more than twelve inches (12").
SECONDARY WATER SUPPLY: A water supply system maintained in addition to a public water supply, including but not limited to water systems from ground or surface sources not meeting the requirements of Act No. 98 of the Public Acts of 1913, as amended, being sections 325.201 to 325.214 of the Compiled Laws of 1948, or water from a public water supply which in any way has been treated, processed or exposed to any possible contaminant or stored in other than an approved storage facility.
SUBMERGED INLET: A water pipe or extension thereto from a public water supply terminating in a tank, vessel, fixture or appliance which may contain water of questionable quality, waste or other contaminant and which is unprotected against backflow.
WATER UTILITY: The Wenona Water and Sewer Department.
B. Cross-Connections Prohibited: Cross-connection of the public water supply system and any other water supply system or source including but not limited to the following are prohibited:
1. Between a public water supply system and a secondary water supply.
2. By submerged inlet.
3. Between a lawn sprinkling system and the public water supply system.
4. Between a public water supply and piping which may contain sanitary waste or a chemical contaminant.
5. Between a public water supply system and piping immersed in a tank or vessel which may contain a contaminant.
C. Local Cross-Connection Control Program: The City shall develop a comprehensive control program for the elimination and prevention of all cross-connections, and removal of all existing cross-connections and prevention of all future cross-connections.
D. Corrections and Protective Devices: Any user of Wenona water shall obtain written approval from the Water and Sewer Department of any proposed corrective action or protective device before using or installing same. The total time allowed for completion of the necessary corrections shall be contingent upon the degree of hazard involved and include the time required to obtain and install equipment. If the cross-connection has not been removed within the time as hereinafter specified, the City shall physically separate the Wenona water supply from the on-site piping system in such manner that the two (2) systems cannot be connected by any unauthorized person.
E. Piping Identification: When a secondary water source is used in addition to the Wenona water supply, exposed water and secondary water piping shall be identified by distinguishing colors or tags and so maintained that each pipe may be traced readily in its entirety. It will be necessary to protect the water supply at the service connection in a manner acceptable to the Water and Sewer Department.
F. Private Water Storage Tanks: A private water storage tank supplied from the water supply system shall be deemed a secondary water supply unless it is designed and approved for potable water usage.
G. Elimination of Existing Cross-Connections: Within one year from the effective date of this Section all existing cross-connections to the water supply system shall be eliminated. The expenses of such elimination shall be that of the owner of the property on which such cross-connection exists.
H. Inspection: The City Water and Sewer Department or any representative thereof shall have the authority to inspect any premises to determine the presence of an existing cross-connection and to order the elimination of such cross-connection.
I. Discontinuance of Water Service: The Water and Sewer Department is hereby authorized to discontinue water service after a reasonable notice to any person owning any property where a cross-connection in violation of this Code exists. The Water and Sewer Department may take such other precautionary measures as necessary to eliminate any danger of the contamination of the water supply system. Water service to such property shall not be restored until such cross-connection has been eliminated. (1994 Code)