Loading...
The purposes of this subchapter are:
(A) To provide for the protection of the public potable water supply;
(B) To isolate at the service connection any actual or potential pollution or contamination within the consumer's premises; and
(C) To provide a continuous, systematic and effective program of cross connection control.
(Ord. 2014-11-484, passed 11-4-14)
For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
AIR GAP (AG).
A physical separation between two piping systems.
BACKFLOW.
A hydraulic condition, caused by a difference in pressures, in which non-potable water or other fluids flow into a potable water system.
BACKFLOW PREVENTER.
A testable assembly to prevent backflow.
DOUBLE-CHECK VALVE ASSEMBLY (DC).
A complete assembly meeting AWWA Standard C5 10 and the requirements of the Arkansas State Plumbing Code consisting of two internally loaded, independently operating check valves between two tightly closing resilient-seated shutoff valves, with four properly placed resilient seated test cocks.
REDUCED-PRESSURE PRINCIPLE BACKFLOW PREVENTION ASSEMBLY (RP).
A complete assembly meeting AWWA Standard C51 I and the requirements of the Arkansas State Plumbing Code consisting of a hydraulically operating, mechanically independent differential relief valve located between two independently operating, internally loaded check valves that are located between two tightly closing resilient seated shutoff valves with four properly placed resilient-seated test cocks.
(Ord. 2014-11-484, passed 11-4-14)
The water utility's Cross Connection Control Program: Handbook of Policies and Procedures is hereby incorporated into this subchapter by reference. It is the primary responsibility of the water purveyor and/or the Water and Sewer Committee to evaluate the hazards inherent in supplying a consumer's water system (i.e., determine whether solid, liquid or gaseous pollutants or contaminants are, or may be, handled on the consumer's premise in such a manner as to possibly contaminate the public water system). When a hazard or potential hazard to the public water system is found on the consumer's premise, the consumer shall be required to install an approved backflow prevention assembly (BFP), or an air gap, at each public water service connection to the premise in accordance with this subchapter's requirements. The type of BFP shall depend on the degree of hazard involved. The degree of hazard shall be as described in AWWA M-14 manual or as described below.
(A) In the case of any premise where there is an auxiliary water supply, connected to the plumbing system, the public water system shall be protected from the possibility of backflow by a reduced-pressure principle backflow prevention assembly (RP) at the service connection.
(B) In the case of any premise where substances are handled that are objectionable, but not hazardous to human health, and the likelihood exists of it being introduced into the public water system by virtue of a backflow occurrence, the public water system shall be protected by an air gap or an approved double check valve assembly (DC).
(C) In the case of any premise where there is any material, hazardous to human health, which is handled in such a fashion as to create an actual or potential threat to the public water system by virtue of a backflow occurrence, the public water system shall be protected by an air gap or an approved reduced-pressure principle backflow prevention assembly (RP).
(D) In case of any premise where there are unprotected cross connections, either actual or potential, the public water system shall be protected by an approved reduced-pressure principle backflow prevention assembly (RP) or an air gap at the service connection.
(E) In the case of any premise where, because of security requirements or other prohibitions or restrictions, it is impossible or impractical to make a complete cross connection survey, the public water system shall be protected by the installation of an approved reduced-pressure principle backflow prevention assembly (RP) or an air gap at the service connection.
(Ord. 2014-11-484, passed 11-4-14)
(A) The following is a partial list of facilities which ordinarily will require a reduced-pressure principal backflow prevention assembly (RP) or an air gap in accordance with the ASPC. Requirements are based upon the degree of hazard afforded the public potable water system
(1) Automatic car washes.
(2) Auxiliary water systems (interconnected with the public water system).
(3) Exterminators and veterinary clinics.
(4) Facilities with boilers, condenser water or chilled water systems.
(5) Fire systems containing chemical additives.
(6) Hospitals, medical clinics, dental clinics, health clinics, sanitariums, morgues, mortuaries, autopsy facilities, nursing and convalescent homes.
(7) Irrigation systems and lawn sprinkler systems.
(8) Laboratories (industrial, commercial, photography, medical and school).
(9) Commercial laundries.
(10) Radiator and battery shops.
(11) Restricted, classified or other facilities closed to inspection.
(12) Sand, gravel and concrete plants.
(13) Wastewater treatment plants, pump stations and storm water pumping facilities.
(14) Marinas and dockside facilities.
(15) Commercial swimming pools.
(16) Commercial farms using pesticides and herbicides.
(17) Establishments holding livestock for sale or slaughter including cattle, horses, hogs, poultry, emus, ostriches, llamas, rabbits, etc.
(18) Others (with suspected high hazards).
(B) The following is a partial list of facilities which ordinarily will require a minimum of a double check valve assembly (DC) or an air gap in accordance with the ASPC:
(1) Tall buildings (over four stories) or any buildings with water booster pumps.
(2) Beauty parlors and barber shops.
(3) Hotels and motels.
(4) Restaurants, cafeterias, fast-food marts and other food handling facilities.
(5) Fire sprinkler systems (without chemicals).
(6) Others (with suspected medium hazards).
(Ord. 2014-11-484, passed 11-4-14)
Loading...