Iowa Administrative Code › Agency 641 - Public Health Department › Chapter 25 - State Plumbing Code › Rule 641-25.5 - Backflow Prevention With Containment

Current through Register Vol. 47, No. 3, July 24, 2024
Cities with populations of 15,000 or greater as determined by
				the 2010 census or any subsequent regular or special census shall have a
				backflow prevention program with containment. The minimum requirements for a
				program are given in subrules 25.5(1) through 25.5(5). These requirements are
				in addition to the applicable requirements of Section 603 of the Uniform
				Plumbing Code, 2021 Edition.
(1)
Definitions.
The following definitions are added to those in
			 Chapter 2 and Section 603 of the Uniform Plumbing Code, 2021 Edition, or are
			 modified from those definitions for the purposes of rule 641-25.5 (105) only.
a.
Administrative
			 authority.
The administrative authority for this rule is the city
			 council and its designees or, with respect to private water utilities, the Iowa
			 utilities board.
b.
Approved backflow prevention assembly for containment.
Approved
			 backflow prevention assembly for containment means a backflow prevention
			 assembly which is approved by the University of Southern California Foundation
			 for Cross-Connection Control and Hydraulic Research. The approval listing shall
			 include the limitations of use based on the degree of hazard. The backflow
			 prevention assembly shall also be listed by the International Association of
			 Plumbing and Mechanical Officials (IAPMO) or by the American Society of
			 Sanitary Engineering (ASSE) as having met the requirements of one of the
			 standards listed below.
Standard
Product Covered
ANSI¤/ASSE* 1013-2009
Reduced Pressure Principle Backflow Preventers
ANSI¤/ASSE* 1015-2009
Double Check Backflow Prevention Assembly
ANSI¤/ASSE* 1047-2009
Reduced Pressure Detector Backflow Preventer
ANSI¤/ASSE* 1048-2009
Double Check Detector Assembly Backflow
						  Preventer
ANSI¤/AWWA[DAGGER] C510-07
Double Check Valve Backflow Prevention Assembly
ANSI¤/AWWA[DAGGER] C511-07
Reduced-Pressure Principle Backflow Prevention
						  Assembly
¤American National Standards Institute, 1899 L Street
				NW, 11th Floor, Washington, DC 20036
*American Society of Sanitary Engineering, 18927 Hickory Creek
				Drive #220, Mokena, IL 60448
[DAGGER]American Water Works Association, 6666 West Quincy
				Avenue, Denver, CO 80235
c.
Approved backflow prevention assembly for containment in a fire
			 protection system.
Approved backflow prevention assembly for
			 containment in a fire protection system means a backflow prevention assembly to
			 be used in a fire protection system which meets the requirements of Factory
			 Mutual Research Corporation (FM) and Underwriters Laboratory (UL) in addition
			 to the requirements of 25.5(1)
"b."
d.
Containment.
Containment
			 is a method of backflow prevention which requires a backflow prevention
			 assembly on certain water services. Containment requires that the backflow
			 prevention assembly be installed on the water service as close to the public
			 water supply main as is practical.
e.
Customer.
Customer means
			 the owner, operator or occupant of a building or property which has a water
			 service from a public water system, or the owner or operator of a private water
			 system which has a water service from a public water system.
f.
Degree of hazard.
Degree
			 of hazard means the rating of a cross connection or a water service which
			 indicates if it has the potential to cause contamination (high hazard) or
			 pollution (low hazard).
g.
Water service.
Depending on the context, water service is the physical
			 connection between a public water system and a customer's building, property or
			 private water system, or the act of providing potable water from a public water
			 system to a customer.