Chapter 12.18
WATER UTILITY REGULATIONS
Sections:
12.18.010 Purpose.
12.18.020 Definitions.
12.18.030 Cross-connections – Prohibited.
12.18.040 Cross-connections – Standards.
12.18.050 Cross-connections – Responsibility.
12.18.060 Cross-connections – Service prerequisites.
12.18.070 Cross-connections – Approval required.
12.18.080 Cross-connections – Right of entry.
12.18.010 Purpose.
The purpose of this chapter is to protect the water supply of the city of Stanwood water system from contamination or pollution from potential cross-connections; promote the elimination or control of existing or potential cross-connections. (Ord. 721 § 1, 1987).
12.18.020 Definitions.
(1) “Airbreak” is a physical separation which may be a low inlet into the indirect waste receptor from the fixture, appliance or device indirectly connected.
(2) “Airgap” is the unobstructed vertical distance through the free atmosphere between a supply line outlet and overflow rim of a receiving vessel. This separation must be at least twice the inside diameter of the supply line, but never less than one inch.
(3) “Backflow” is the flow of water or other liquids, mixtures or substances into the distributing pipes of a potable supply of water from any source or sources other than its intended source (see “Back-siphonage”).
(4) “Backflow connection” or condition is any arrangement whereby backflow can occur.
(5) “Backflow preventer” is a device or means to prevent backflow into the potable water system.
(6) “Back-siphonage” is the flowing back of used, contaminated, or polluted water from a plumbing fixture or vessel into a water supply pipe due to a negative pressure in such pipe (see “Backflow”).
(7) “Cross-connection” is any connection or arrangement, physical or otherwise, between a potable water supply system and any plumbing fixture or any tank, receptacle, equipment or device, through which it may be possible for non-potable, used, unclean, polluted and contaminated water, or other substances to enter into any part of such potable water system under any condition. (Ord. 721 § 2, 1987).
12.18.030 Cross-connections – Prohibited.
The installation or maintenance of any cross-connection which would endanger the water supply of the city of Stanwood water system is prohibited. Any such cross-connection now existing or hereafter installed is hereby declared unlawful and shall be abated immediately. (Ord. 721 § 3, 1987).
12.18.040 Cross-connections – Standards.
The control or elimination of cross-connections shall be in accordance with WAC 248-54-285. The policies, procedures, and criteria for determining appropriate levels of protection shall be in accordance with the Accepted Procedure and Practice in Cross Connection Control Manual – Pacific Northwest Section – American Water Works Association, Third Edition, or any superseding edition. (Ord. 721 § 4, 1987).
12.18.050 Cross-connections – Responsibility.
It shall be the responsibility of the city of Stanwood department of public works to protect the potable water system from contamination or pollution due to cross-connection. (Ord. 721 § 5, 1987).
12.18.060 Cross-connections – Service prerequisites.
Water service to any premises shall be contingent upon the customer providing cross-connection control in a manner approved by the Stanwood department of public works. (Ord. 721 § 6, 1987).
12.18.070 Cross-connections – Approval required.
Backflow devices required to be installed shall be a model approved by the state Department of Social and Health Services and shall be tested annually. (Ord. 721 § 7, 1987).
12.18.080 Cross-connections – Right of entry.
Authorized employees of the city of Stanwood public works department with proper identification shall have free access at reasonable hours of the day, to all parts of a premises or within buildings to which water is supplied. Water service may be refused or terminated to any premises for failure to allow necessary inspections. (Ord. 721 § 8, 1987).