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Cross Connection Control

HEALTH SERVICES

CROSS CONNECTION / BACKFLOW
PREVENTION PROGRAM


Oregon
Administrative Rules and Revised Statutes
related to
Cross Connection Control



OAR 333-061-0020, 0070 through 0074
Permanent Rules adopted November 2, 2004

And related excerpts of
OAR 166-200-0110, and ORS 448






DHS, Health Services
CC / BP Program
PO Box 14450
Portland OR 97293-0450
(503) 731-4007 office
(503) 731-4078 fax
Website at
http://www.healthoregon.org/crossconnection

TABLE OF CONTENTS

OREGON ADMINISTRATIVE RULES

333-061-0020

DEFINITIONS


2


333-061-0070
CROSS CONNECTION CONTROL
REQUIREMENTS

1
5

333-061-0071
BACKFLOW PREVENTION ASSEMBLY
INSTALLATION AND OPERATION
STANDARDS




19

333-061-0072
BACKFLOW ASSEMBLY TESTER
CERTIFICATION

2
2

333-061-0073
CROSS CONNECTION SPECIALIST
CERTIFICATION

2
5

333-061-0074
CROSS CONNECTION TRAINING


PROGRAMS,
COURSE,
AND

INSTRUCTOR
REQUIREMENTS

2
8


166-200-0110
PUBLIC WORKS-OPERATIONS AND
MAINTENANCE RECORDS


3
4


OREGON REVISED STATUTES

CHAPTER 448 WATER SYSTEMS








(
Cross Connection Control-related excerpts)
3
5






OREGON ADMINISTRATIVE RULES
CHAPTER 333
DIVISION 61


PUBLIC WATER SYSTEMS

333-061-0020
Definitions
As used in these rules, unless the context indicates otherwise:
(1) Act means the Oregon Drinking Water Quality Act of 1981 (ORS 448.115-448.990
as amended).
(2) Action Level means the concentration of lead or copper in water which determines,
in some cases, the treatment requirements that a water system is required to complete.
(3) Administrator means the Director of the Department of Human Services or his/her
designee.
(4) Approval or Approved means approved in writing.
(5) Approved Air Gap (AG) means a physical separation between the free-flowing
discharge end of a potable water supply pipeline and an open or non-pressurized
receiving vessel. An Approved Air Gap shall be at least twice the diameter of the
supply pipe measured vertically above the overflow rim of the vessel and in no case less
than 1 inch (2.54 cm), and in accord with Oregon Plumbing Specialty Code.
(6) Approved Backflow Prevention Assembly means a Reduced Pressure Principle
Backflow Prevention Assembly, Reduced Pressure Principle-Detector Backflow
Prevention Assembly, Double Check Valve Backflow Prevention Assembly, Double
Check-Detector Backflow Prevention Assembly, Pressure Vacuum Breaker
Backsiphonage Prevention Assembly, or Spill-Resistant Pressure Vacuum Breaker
Backsiphonage Prevention Assembly, of a make, model, orientation, and size approved
by the Department. Assemblies listed in the currently approved backflow prevention
assemblies list developed by the University of Southern California, Foundation for Cross-
Connection Control and Hydraulic Research, or other testing laboratories using
equivalent testing methods, are considered approved by the Department.
(7) Aquifer means a water saturated and permeable geological formation, group of
formations, or part of a formation that is capable of transmitting water in sufficient
quantity to supply wells or springs.
(8) Aquifer Parameter means a characteristic of an aquifer, such as thickness, porosity
or hydraulic conductivity.
(9) Aquifer Test means pumping a well in a manner that will provide information
regarding the hydraulic characteristics of the aquifer.
(10) Atmospheric Vacuum Breaker (AVB) means a device consisting of an air inlet
valve or float check, a check seat and an air inlet port(s). This device is designed to
protect against a non-health hazard or a health hazard under a backsiphonage condition
only.
(11) Auxiliary Water Supply means any supply of water used to augment the supply
obtained from the public water system, which serves the premise in question.
Permanent Rules adopted November 2, 2004
Page 2
(12) Average Groundwater Velocity means the average velocity at which groundwater
moves through the aquifer as a function of hydraulic gradient, hydraulic conductivity and
porosity.
(13) AWWA means the American Water Works Association.
(14) Backflow means the flow of water or other liquids, mixtures, or substances into
the distributing pipes of a potable supply of water from any sources other than its
intended source, and is caused by backsiphonage or backpressure.
(15) Backflow Preventer means a device, assembly or method to prevent backflow into
the potable water system.
(16) Backflow Prevention Assembly means a backflow prevention assembly such as a
Pressure Vacuum Breaker Backsiphonage Prevention Assembly, Spill-Resistant Pressure
Vacuum Breaker Backsiphonage Prevention Assembly, Double Check Valve Backflow
Prevention Assembly, Double Check-Detector Backflow Prevention Assembly, Reduced
Pressure Principle Backflow Prevention Assembly, or Reduced Pressure Principle-
Detector Backflow Prevention Assembly and the attached shutoff valves on the inlet and
outlet ends of the assembly, assembled as a complete unit.
(17) Backpressure means an elevation of pressure downstream of the distribution
system that would cause, or tend to cause, water to flow opposite of its intended
direction.
(18) Backsiphonage means a drop in distribution system pressure below atmospheric
pressure (partial vacuum), that would cause, or tend to cause, water to flow opposite of its
intended direction.
(19) Best Available Technology or BAT means the best technology, treatment
techniques, or other means which the EPA finds, after examination for efficacy under
field conditions and not solely under laboratory conditions, are available (taking cost into
consideration).
(20) Bottled Water means potable water from a source approved by the Department for
domestic use which is placed in small, easily transportable containers.
(21) Calculated Fixed Radius means a technique to delineate a wellhead protection
area, based on the determination of the volume of the aquifer needed to supply
groundwater to a well over a given length of time.
(22) CFR means the Code of Federal Regulations. Specifically, it refers to those
sections of the code which deal with the National Primary and Secondary Drinking Water
Regulations.
(23) Check Valve means a valve, which allows flow in only one direction.
(24) Coagulation means a process using coagulant chemicals and mixing by which
colloidal and suspended materials are destabilized and agglomerated into floc.
(25) Coliform-Positive means the presence of coliform bacteria in a water sample.
(26) Community Water System means a public water system that has 15 or more
service connections used by year-round residents, or that regularly serves 25 or more
year-round residents.
(27) Compliance Cycle means the nine-year calendar year cycle during which public
water systems must monitor. Each compliance cycle consists of three three-year
compliance periods. The first calendar year cycle begins January 1, 1993 and ends
December 31, 2001.
Permanent Rules adopted November 2, 2004
Page 3
(28) Compliance Period means a three-year calendar year period within a compliance
cycle. Each compliance cycle has three three-year compliance periods. Within the first
compliance cycle, the first compliance period runs from January 1, 1993 to December 31,
1995; the second from January 1, 1996 to December 31, 1998; and the third from January
1, 1999 to December 31, 2001.
(29) Comprehensive performance evaluation (CPE) means a thorough review and
analysis of a treatment plant's performance-based capabilities and associated
administrative, operation and maintenance practices. It is conducted to identify factors
that may be adversely impacting a plant's capability to achieve compliance and
emphasizes approaches that can be implemented without significant capital
improvements. The CPE must consist of at least the following components: Assessment
of plant performance; evaluations of major unit processes; identification and
prioritization of performance limiting factors; assessment of the applicability of
comprehensive technical assistance; and preparation of a CPE report.
(30) Conceptual Model means a three-dimensional representation of the groundwater
system, including the location and extent of the hydrogeologic units, areas of recharge
and discharge, hydrogeologic boundaries and hydraulic gradient.
(31) Confined Well means a well completed in a confined aquifer. More specifically, it
is a well which produces water from a formation that is overlain by an impermeable
material of extensive area. This well shall be constructed according to OA