Chapter 13.20
CROSS-CONNECTION CONTROL
Sections:
13.20.040 Customer system open for inspection.
13.20.050 Backflow prevention requirements.
13.20.060 The type of backflow protection required.
13.20.070 Approval of assemblies.
13.20.080 Owner’s duty for inspection.
13.20.090 Previously installed assemblies.
13.20.010 Purpose.
To provide a basis for implementing the cross-connection control requirements of the state drinking water regulations, enacted to ensure safe drinking within the water systems which serve the public. [Ord. 279 § 1, 1998]
13.20.020 Interpretation.
Any interpretation of this chapter regarding scope, intent, degree of hazard or type of protection required will be subject to the current accepted guidelines of the state, at the time of the interpretation, and the regulations established herein. [Ord. 279 § 2, 1998]
13.20.030 Definitions.
As used in this chapter, unless the context indicates otherwise, the following shall apply:
“Approved backflow prevention assembly” means an assembly which has been approved by the state and the town of Beaux Arts Village for preventing backflow.
“Backflow” means the flow of water or other fluids in the direction opposite to the normal flow.
“Backflow prevention assembly tester” means an individual who is certified by the state and approved by the town of Beaux Arts Village to test backflow prevention assemblies.
“Check valve” means a valve that permits flow in only one direction.
“Contaminant” means any physical, chemical, biological, or radiological substance or matter in water which may render the water nonpotable, according to state regulations.
“Cross-connection” means any link or channel between piping which carries potable drinking water and the piping or fixtures which carry nonpotable water or other substances.
“Cross-connection inspector” means an individual certified by the state and approved by the town of Beaux Arts Village.
“Customer system” means all plumbing, piping, and appurtenances on the customer’s side of the point of metering or connection.
“Double check valve assembly” means an assembly of two independently acting check valves with a shut-off valve on each side of the two check valves. The assembly also has test ports for checking the water tightness of each check valve. The assembly must be an approved backflow prevention assembly.
“Facility survey” means an on-site review of the water source, facilities, equipment, operation, and maintenance for the purpose of evaluating the hazards to the drinking water supply.
“Safe drinking water (potable water)” means water which has sufficiently low concentrations of microbiological, inorganic chemical, organic chemical, radiological or physical substances so that individuals drinking such water at normal levels of consumption will not be exposed to disease organisms or other substances which may produce harmful physical effects.
“Secondary contaminants” means contaminants which at levels generally found in drinking water do not present unreasonable risk to health, but do adversely affect taste, odor or color.
“Service connection” means the point of delivery of water at or near the property line, generally at the water meter. [Ord. 279 § 3, 1998]
13.20.040 Customer system open for inspection.
The customer system shall be open for facility survey at all reasonable times to the water department to determine whether cross-connections or other structural or sanitary hazards including violations of these regulations exist. When such a condition becomes known, the water department’s cross-connection inspector shall cause the service to the premises to be immediately discontinued or denied by a physical break in the service until the customer has corrected the condition in conformance with these regulations. [Ord. 279 § 4, 1998]
13.20.050 Backflow prevention requirements.
Backflow prevention assemblies shall be installed on each service line of a customer’s system at or near the property line or immediately inside the building being served, but in all cases before the first branch line leading off the service line wherever any of the following conditions exist:
(1) Where there is piping for conveying liquids other than potable water, and where that piping is installed and operated in a manner which could cause a cross-connection.
(2) There are cross-connections or intricate plumbing which make it impractical to ascertain whether or not a cross-connection exists.
(3) Where there is a building over two stories in height or any plumbing system that is greater than or equal to 30 feet above the water main from which it is served.
(4) Where fire sprinkler systems are connected to the potable domestic water service within the property being served.
(5) Where there is backflow or back-siphonage potential.
(6) Where any fixture is subject to being submerged.
(7) Where the system is not open for inspection. [Ord. 279 § 5, 1998]
13.20.060 The type of backflow protection required.
Commensurate with the degree of hazard which exists as follows:
(1) An approved double check valve assembly shall be installed with a landscape irrigation system.
(2) An approved pressure vacuum breaker or an atmospheric vacuum breaker shall be installed where the substance which could backflow is objectionable but does not pose a risk to health and where there is no possibility of back-pressure in the downstream piping.
(3) In the case of fire sprinkler systems, an approved backflow prevention assembly installed to the water department’s construction specifications shall be required. The water department may require a monitoring meter or detection system to detect unauthorized use or leakage within the system. The type of backflow prevention assembly shall be an approved double check valve assembly. [Ord. 279 § 6, 1998]
13.20.070 Approval of assemblies.
All backflow prevention assemblies required under this chapter shall be of a type and model approved by the state and the town of Beaux Arts Village. [Ord. 279 § 7, 1998]
13.20.080 Owner’s duty for inspection.
It shall be the duty of the assembly owner of any premises where backflow assemblies are installed to have the assembly tested and certified as working immediately upon installation of the assembly, and at least once a year, or more often in those instances where successive inspections indicate repeated failure. The frequency of these tests or the replacement of the assembly because of repeated failure is at the discretion of the water department. The tests, repairs, and/or replacement of any backflow prevention assembly shall be at the expense of the assembly owner and performed by a backflow prevention assembly tester who is currently certified by the state and approved by the Beaux Arts Village water department. Test, repair and/or replacement shall be performed within 30 days of the test due date. The assembly owner is required to contact a tester who can perform the test in the necessary time period. The town clerk will notify the owner each year when the assembly is due for testing. The assembly owner shall notify the town clerk a minimum of 48 hours in advance of when a test is to be performed so that the water department’s cross-connection inspector may witness the test if they so desire. Records of such tests, repairs, and/or replacement shall be submitted to the town clerk within 10 days of such tests, repairs or replacement. [Ord. 279 § 8, 1998]
13.20.090 Previously installed assemblies.
Backflow prevention assemblies which were approved at the time they were installed, but are not on the current list of approved assemblies, shall be permitted to remain in service provided they are properly maintained, are commensurate with the degree of hazard, are tested at least annually, and perform satisfactorily. When assemblies of this type are moved, or require more than minimum maintenance, they shall be replaced by assemblies which are on the list of approved assemblies by the state and approved by the Beaux Arts Village water department. [Ord. 279 § 9, 1998]
13.20.100 Enforcement.
The cross-connection inspector shall cause the water service to the premises to be immediately discontinued or denied by a physical break in the service until the customer has corrected the condition in conformance with this chapter in any of the following situations:
(1) When it becomes known that a condition such as a cross-connection, plumbing, structural or sanitary hazard, or other violation of this chapter is present.
(2) In those cases of extreme emergency and where an immediate threat to life or public health is found to exist.
(3) When, in other cases and after a reasonable length of time has been allowed as determined solely by the water department’s inspector, the tests, repairs, and/or replacement of assemblies or any other requirement within this chapter is not performed in accordance with this chapter.
(4) A reconnection charge will be assessed for any disconnection in accordance with Section 4 of the town’s current fee resolution. [Ord. 279 § 10, 1998]