HomeMy WebLinkAboutOrdinance 1677 N.C.S. 04/06/1987EFFECTIVE DATE
OF ORDINANCE
MAY 6 1987
Introduced by
Jack Cavanagh
ORDINANCE NO. 1677 N.C.S.
Seconded by
Vice Mayor Tencer
AN ORDINANCE SETTING FORTH REQUIREMENTS FOR THE
`PROTECTIO.N - OF 'THE PUBLIC WATER SYSTEM BY
CROSS -CONNECTION *AND BACKF LOW CONTROL, BY REPEALING
SECTION 15.08:220 AND ADDING CHAPTER 15.09 TO THE
P'ETALUMA MUNICIPAL CODE.
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF PETALUMA AS
FOLLOWS:
Section 1. Section 15.08.220: of the Petaluma Municipal Code is hereby
repealed.
Section 2. Chapter 15.09 of the Petaluma Municipal Code is hereby
added to read as follows:,
CHAPTER 15.09
CROSS -CONNECTIONS AND BACKFLOW CONTROL
Section:
15.09.010
Authority, Purposes and Incorporation of
California Title 17 Regulations.
15.09.020
Responsibility.
15.09.030
Definitions.
15.09.040
Requirements for backflow prevention devices.
15. 09.0.50
Installation of backflow prevention devices.
15.09.060
Testing. and repair of backflow prevention devices.
15.09.070
Work by City personnel.
15. 09. MO
:Requirements for certification of a backflow
prevention device tester
15.09.090
Right to enter customer's property.
15.09.100
Discontinuance of service.
1
01up.1'677NCS
15.09.010 - Authority, Purposes and Incorporation
of California. Title 17 Regulations.
(a) Title•, 17,, Chapter V, Section '7581377622, inclusive, of the
California Administrative,. Code entitled "Regulations Relating to
Cross -Connections" 'setss" forth'- rules and regulations governing
cross -connections. Said regulations are incorporated herein by reference
and made a part, 'hereof 'insofar as they are applicable to the protection to
the public water supply.
(b) Said Title 17, Section 7583, states, among other things, "The
water purveyor has primary responsibility to prevent water from
unapproved sources, or any other substance, from entering the public
water supply system." City of Petaluma hereinafter "City", is a water
purveyor within the meaning of Title 17.
(c) In order to provide- for an orderly and adequate means of
protection of the public water supply from backflow, the requirements
hereinafter set forth are reasonable and necessary. The City adopts these
requirements for the protection of the public
c awater supply from backflow.
New water service connections shall be installed and existing water service
connections shall be modified to conform to these requirements as
hereinafter set forth.
15.09.020 - Responsibility
The Director of Public Works/City Engineer shall be responsible for
the protection of the public potable water supply from contamination or
pollution due- to the backflow or back-siphonage of contaminants or
pollutants through the water service connect -ion.
.2 - -
67 7V C 8,
,e
15.09.030 - Definitions
(a) Air Gap: The unobstructed vertical distance through the free
atmosphere between the lowest opening from any pipe or faucet supplying
water to a tank, plumbing fixture, or other device and the flood level rim
of said vessel. An approved air -gap shall be at least double the diameter
of the supply pipe, and, in no case, less than one inch.
(b) Approved: Accepted by the Director of Public Works/City
Engineer as meeting an applicable specification stated or cited in this
chapter.
(c) Auxiliary Water Supply: Any water supply on or available to the
premises other than the 'purveyor's approved public potable water supply.
These auxiliary waters -may include water from -another purveyor's public
potable water supply or any natural sources) such as • a well, spring,
river, stream, harbor, etc. , or "used waters" or "industrial fluids". These
waters may be polluted or contaminated or they. may be objectionable and
constitute an unacceptable water source over which the water purveyor does
not have sanitary control. Any well will be considered as an auxiliary
supply if connected to the City source of supply.
(d) Backflow : The flow of water or other liquids, mixtures, or
substances under pressure into the distributing pipes or a potable water
supply system from any source or sources other than its intended source.
(e) Back-Siphonage: The flow of water or other liquids, mixtures,
or substances into the distributing pipes of a potable water supply system
from any source other than its intended source caused by the sudden
reduction of pressure in the potable water supply system.
(f) Backflow Preventer: A device or means designed to prevent
backflow or back-siphonage.
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ORD. 16 7 7 N C:S
(g) Certified Tester Accepted by the Director of Public Works/City
Engineer as meeting applicable requirements stated or cited in this chapter.
`(h) Director of .Public Works/City Engineer-: The Director of Public
Works/City Engineer 'of the City of Petaluma;.
(i) Contamination: An impairment .of the quality of the potable water
by sewage, industr"ial fluids or .waste liquids, compounds, or other materials
to a degree which creates an actual hazard to the public health through
poisoning or through the. spread of disease.
(j) Cross -Connection :' Any physical connection. or arrangement of
piping or fixtures between two otherwise separate piping systems, one of
which contains potable and the other non -potable -water or industrial fluids
of questionable safety, through which, or because of which, backflow or
back-siphonage may occur into the potable water system. A water service
connection between a public ,potable water distribution system and a
customer's water distribution system which is cross -connected to a
VAT R_
contaminated fixture,, industrial fluid system., or wllok a potentially
contaminated supply or. auxiliary water system. constitutes one type of
cross -connection. Other types of cross -connections include connectors such
as sawing connections, removable sections; 'four-way plug valves, spools,
dummy-,- sections of ,pipe,.. -.swivel or change -over, devices, sliding multiport
t;yp'e;;,,solid connections., etc.
(k) Cross --Connections Controlled": A' connection between a potable
water system and a non -potable water system with an approved backflow
prevention device.. `properly installed that will continuously afford the
protection„ commensurate: with the degree of hazard.
(1) Cross -Connection Control by Containment:- The installation of an
approved backflow prevention device at"the water service connection to any
4
customer's premises where it is physically and economically infeasible to find
and permanently eliminate or control all. actual or potential cross -connections
within the customer's water system; or it shall mean the installation of an
approved backflow prevention device on the service line leading to and
supplying a portion of a customer's water system where there are actual or
potential cross -connections which cannot be effectively eliminated or
controlled at the point of cross -connection.
(m) Customer: Any person or organization who receives water from
the City of Petaluma water distribution system.
(n) Double Check .Valve Assembly: An assembly of two independently
operating approved check valves with tightly closing shutoff valves on each
side of .the check valves, plus. properly located. test cocks for the testing of
each check valve. The entire assembly shall meet the design and
performance specifications and approval of a recognized and City approved
testing agency for backflow prevention devices. To be approved, these
devices must be readily accessible for in -line maintenance and testing and
installed to City standards.
(o) Fire Systems.: A fire -fighting system with a direct connection to
the public potable water system should be protected in a manner
commensurate with the hazard. Fire protection systems may be classified as
follows:
1. Class I
Direct connections from domestic water mains only; no pumps or
reservoir; no physical connection from other water supplies; no anti -freeze
or other additives of any kind; and all sprinkler drains discharging to
atmosphere, dry wells, or other safe outlets.
5
.1677N;CS
2. Clans II
Same as Class I, except that booster pumps may be installed in
the connection from the street mains. This type of installation is not
allowed 'by the City. See Section 15.08.230.
3. Class III
Direct connection-. from public. water supply main plus one or more
of the following: Elevated storage tanks; . fire pumps taking suction from
above -ground covered reservoirs or tanks; or pressure tanks. All storage
facilities are filled or connected - to public water only; the water in the
tanks is to be maintained in a potable condition.
4. Class IV
Directly supplied from public mains similar to Class I and II,
connections for fire pumper truck or with an auxiliary water supply on or
available to the premises.
5. Class V
Directly . supplied from public mains' and interconnected with
auxiliary supplies, suchas pumps taking suction from reservoirs exposed to
contamination or from rivers and ponds; driven- wells; mills or other
industrial water systems; or systems where anti=freeze or other additives
are used.
6. Class VI
Combined in°dustr-ial and fire protection systems supplied from the
public water mains only, with or without gravity storage or pump suction
tanks.
('p) Hazard., Degree of The elevation of the potential risk to public
health and the adverse effect of the hazard upon the potable water system
as:
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ORD.16 7 7 N C S
1. Hazard Health: Any condition., device, or practice in the
water supply, system and its operation which could create, or in the
judgment of the Director of Public Works/City :Engineer may create a danger
to the health and well being of the water consumer. An example of a
health hazard is a structural defect, including cross -connections, in a water
supply. system.
2. Hazard' Plumbing: A plumbing type cross -connection in a
consumer's potable water system 'that has not been : properly protected by a
vacuum breaker, air -gap separation, or, backflow prevention device.
Unprotected plumbing, type cross -connections are considered to be a 'health
hazard.
3. Hazard - Pollutional: An actual or potential threat to the
physical properties of the water system or to the potability of the public or
the consumer's potablewater system but which would constitute a nuisance
or be aesthetically objectionable or could cause damageto the system or its
appurtenances, but would not be dangerous to health,.
4. Hazard - System: An actual or potential threat of severe
damage to the physical properties of the public potable water system or the
consumer's potable water, system or of a pollution or contamination which
! would .have 4 protracted effect ,oi `the quality of .,the potable water in the
system.
(q)' Indus;trial, Fluids System: Any system containing a fluid or
solution which may be chemically, biologically, or' otherwise contaminated or
Polluted In a form. :or concentration such as. would constitute a health,
system, pollutional, or plumbing hazard 'if introduced into an approved
water supply: This 'may include, but not be limited to: Polluted or
contaminated waters; all types of process waters and "used waters"
7'
o�:1677N CS:
originating from- the public potable water system which may have
deteriorated in sanitary quality; chemicals in fluid form; plating acids and
alkalies, circulated cooling waters connected to an open cooling tower
and/or cooling towers that are chemically or biologically treated or stabilized
with toxic substances; contaminated natural waters such as from wells,
springs, streams, rivers, bays, harbors, seas, irrigation canals or
systems, etc.; oils, gases, glycerine parafins, caustic and acid solutions,
and other liquid and gaseous fluids used in industrial or other purposes or
for firefighting purposes.
(r) Pollution: Means.. the presence of: any .foreign substance (organic,
R.-
inorganic, or biological) in water which tends to degrade its quality so as
to constitute a hazard or' ;impair the usefulness or quality of the water to a
degree which does not create an actual hazard to the public health but
which does adversely and unreasonably affect such waters for domestic use.
(s) Reduced Pressure Principle Device: An assembly of two
independently operating approved check valves- with an automatically
operating differential relief valve between the two check valves, tightly
closing shut-off valves on either side of the . check valves, plus properly
located test cocks for the testing of the check and relief valves. The
entire assembly shall meet the design and performance specifications and
approval of a recognized and City -approved testing agency for backflow
prevention assemblies;. The device shall operate to maintain the pressure in
the zone between the two check valves at a level less than the pressure on
the public water- supply side of the device. In case of leakage of either of
the check valves, the differential relief valve shall- open to the atmosphere.
To be approved, these devices must be readily accessible for in -line
maintenance and testing and be installed according to City standards.
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ORD.1677 N C S
(t) Water Potable: Any water which, according to recognized
standards, is safe for human consumption...
(u) Water - Nonpotable: Water which is. not safe for human
N
consumption or which 'is- of questionable potability.
(v) Water Service Connection: The terminal end of a service
connection from the public potable water system; i.e., where the Water
Purveyor loses jurisdiction and :sanitary control over the water at its point
of delivery to the customer Is, water system.. If a meter is installed at the
end of the service connection, then the service connection shall mean the
downstream end of the meter. There should be no unprotected takeoffs
from the service line ahead of any meter or backflow prevention device
located at the point of delivery to the customer's waste system. Service
connection shall also include water service connection from a fire hydrant
and all other temporary or emergency water' service connections from the
public potable water system.
(w) Water - Used: Any water supplied by a Water Purveyor from a
public potable water system to a consumer's water system after it has
passed through the point - of delivery is no longer under the sanitary
control of the Water Purveyor.
15.09.040, - Requirements for B,ackflow Prevention Devices
(a) General Premise- Requirements: Backflow prevention devices shall
be required by the Director of Public Works/City Engineer for premises in
the following described categories.
I, Premises . having an auxiliary water .supply.
2. Premises on, which any substance is handled under pressure
in such a fashion as to permit possible entry into the City's distribution
ORD. 916 '7N'CS
system, includingwater originated from the "City's system which is boosted
in pressure.
3. Premises . which the customer''s -.system has more than one
service} connection..
4. Premises which, in the opinion of the Director of Public
Works/City Engineer, contain cross -connections, or the potential for
cross -connections, which could result in, the pollution or contamination of
the City water system in the event of backflow or back-siphonage.
(b) Approved Backflow Prevention Device: Any backflow prevention
device required herein shall be a model and size approved by the Director
of Public Works/City Engineer and appear on the City's list of approved
backflow prevention devices. The term "approved. backflow prevention
device" shall mean a
device that
has,
been manufactured
in full
conformance
with the standards
established
by
the American Water
Works
Association
entitled: AWWA C506-69 Standards for Reduced Pressure Principle and
Double Check Valve Backflow Prevention Devices; and have met completely
the laboratory and field performance specifications of the Foundation for
Cross -Connection Control and Hydraulic Research of the University of
Southern California established by: Specifications of Backflow Prevention
Devices - No. 69-2 dated March, 1969,. or the most current issue.
Said AWWA and :FCCC & HR standards and specifications have been
adopted by
the
Director of Public
Works/City Engineer.
Final approval of
any device
or
system proposed
for installation under
the terms of this
chapter :.shall` be evidenced by a "Certificate of Approval" issued by an
approved testing 'laboratory certifying full compliance with said AWWA
standards:. and FCCC '& HR specifications.
10
ORD,.16.7`-7"NCS
The following testing laboratory has been qualified by the Director of
Public Works/City Engineer to test and certify backflow preventers :
Foundation for Cross -Connection Control
& Hydraulic Research
University of, Southern California
University Park
Los Angeles., California 90007
Testing laboratories other than the laboratory listed above will be
accepted as they are qualified by the Director of Public Works/City
Engineer.
(c) Specific Use and Type Requirements: For the following specific
uses, and other uses as designated by the Director of Public Works/City
Engineer, the customer shall be required to install a backflow prevention
device of the type indicated as a minimum.
Use Type Device
Animal Kennels Double Check Valve
Auxiliary Water Systems
(interconnected)
Beverage Bottling Plant.
Buildings with Booster -
Pump Systems and/or
Water Storage Tanks
Car Washes
Film Processors
Fire Protection System
(Class I)
Fire Protection System
(Class II, III, IV)
Fire Protection Systems
(Class V, VI)
Hospitals /Laboratories /
Clinics
Double Check Valve
Double Check Valve
Air Gap
Double Check Valve
Reduced Pressure
Single Check Valve
Double Check Valve
Reduced Pressure
Reduced Pressure
Industrial and/or
Commercial (All') Reduced Pressure
Irrigation Systems (.AW Double Check Valve
Marinas/Boat Docks Reduced Pressure
Mortuaries, Medical;,
Dental Building Reduced Pressure
Multi -Story Buildings
(3 or more stories) Double Check Valve
Plating Facilities Reduced Pressure
Sand and Gravel Plants Double Check Valve
Schools (no laboratory) Double Check Valve
Schools (with laboratory) Reduced Pressure
Sewage and Storm Drain
Pumping Facilities. Air Gap
Swimming Pools Reduced Pressure
Tank Trucks or Chemical
Spray Rigs Air Gap
15.09.050 Installation of Backflow Prevention -Devices
It shall be the customers' responsibility and at the customers' expense
to install
a backflow
prevention device.
Only
approved
backflow prevention devices, as
stated or cited in this
chapter,
shall be installed. All devices shall be
installed in accordance
with City
standards
and at a location approved by
the City'. At the time
an application for• a
new water service is made by a
potential customer, the
Director of Public Works/City Engineer will review said application to
determine the need for a backflow prevention device. The installation of a
backflow prevention device on a new water service shall be a condition of
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ORD. 1,6 7 7 N _r s
water service and meter installation. The City will inspect the premises of
existing water service connections and shall :require the installation of a
backflow prevention device when, in the opinion of. the Director of Public
WorksCity Engineer; the water connection may :be subject to a potential
hazard from .backflow 'or; back- siphonage. An, -.-existing backflow prevention
device which, in the opinion of the Director -of Public Works/City Engineer,
is a type that does not provide adequate protection for the degree of
potential hazard from backflow or back-siphonage shall be upgraded..
Installation of a backflow prevention device, where required by the Director
of Public Works/ City Engineer, shall be installedand inspected within sixty
(60) days of said notification.
All presently installed backflow prevention devices which do not meet
the requirements of this section, but were approved devices for the
purposes described herein at the time of installation and which have been
properly maintained, shall, except for inspection and testing requirements
under
Section 60, be
..excluded
from the requirements
of this chapter
so
long
as the Director
of Public
Works/City Engineer is
assured that
the
devices will satisfactorily protect the public water system. Whenever an
existing backflow prevention device is moved from its present location or
requires more than minimum maintenance or when the Director of Public
Works/City Engineer finds that its maintenance may constitute a hazard to
health., the device shall be replaced in accordance with the requirements of
this chapter.
15.09.060 -
Testing and Repair
of
Backflow Prevention
Devices
It shall be
the responsibility
of
the customer at any
premises where
backflow prevention. devices are installed to have certified inspections and
operational tests performed at least once per year. In those instances
ORD.1 � 7 7 N C °S
where
the Director
of,.. Public
Works/City
Engineer
deems the hazard to be
great
enough, he
may require certified
tests at:
more frequent intervals.
Whenever 'said devices ;are- found" to be defective!, they shall be repaired and
immediately retested. All ' >tes'ts and repairs .shall be performed only by a
certified tester as stated or cited in this chapter.
All tests and repairs shall be recorded' by a certified tester on forms
provided by the City. The customer shall insure all forms are complete and
submit them to the .City. It shall be the City"s responsibility to assure
these timely tests and repairs are made and. the City shall give the
customer at least thirty' (30) days advance written notice of said
requirements.
15.09.070 _ Work by City Personnel
Alternatively, at its options, and upon notification of the customer,
approved
City personnel
may perform any or
all of the inspection,
testing,
repair or
installation of
backflow prevention
devices as required
by this
chapter.
The customer shall be responsible to pay the City 'the actual cost of a
backflow prevention device, its installation and/or repair.
The customer shall be responsible to pay the City any charges for
inspection. and testing of backflow prevention devices as may be set from
time to time- by the City Council.
15.09..080 - Requirements for Certification of a Backflow
Prevention Device Tester
(a) Each applicant for certification as ,a tester of backflow prevention
devices shall file an approved application with the Director of Public
Works/City Engineer, .together with a fee .as may be established by the City
Council. Competency in all phases, of backflow prevention device testing
14
; .16177NC,S
and repair must. be. demonstrated by means of education and/or experience
in order to obtain certification . The following are minimum requirements :
1. Satisfactory completion of the ;Course for the Training and
Certification for Testers for Backfl'ow Prevention Devices offered by the
Foundation for Cross -Connection Control and Hydraulic Research,
University of Southern California or a valid Backflow Prevention Device
Tester Certificate from the American Water Works Association (AWWA)
California -Nevada Section.
2. Each ;applicant for Certification 'asa tester of backflow
prevention devices :shall furnish. evidence to show that the applicant has
available the necessary tools and equipment to properly test . such devices.
The certification issued to any successful. applicant :is valid for a time
period set by the City and. may be revoked, suspended or not .renewed by
the City for improper testing, repairs and/or .reporting. The tester shall
be responsible for the competency and accuracy of all tests and reports
that are prepared' for submittal to the City. The City shall maintain a list
of certified testers to be used by its customers for the testing and repair
of backflow prevention. devices.
City personnel 'that have satisfactorily completed training as in 0.)
above and have demonstrated their, competency in all phases of backflow
prevention device testing and repair may be ' approved by the Director of
Public .Works /City Engiiieer to inspect, test, and repair backflow prevention
devices 'for' the .City.
15.09.090 - ,Right to Enter Customer's Property
As a condition of water service for new customers. and as a condition
of continued water service for existing customers, the customer may be
required to have a backflow prevention device installed on their private
15
ORR 16 7'7 N °C S'
property. The customer shall permit the City to enter upon the customer's
property within the normal working hours of. the City, or in the case of
emergency, at any time, to test, inspect, service, maintain, repair or
replace the backflow prevention device, as set forth in other sections of
this chapter.
15.09.100 - Discontinuance of Service.
Water service to any premises may be disconnected by the City, if
backflow prevention device required by this chapter is not installed, tested
and/or maintained; or if. any deficiency is found in the installation or
operation of a backflow prevention device; or if it is found that a backflow
prevention device has been removed, by-passed, or tampered with; or for
non-payment.. of any charges as set forth_. by this chapter. Whenever any
premises have been disconnected from the water -system for any violation of
n b;
this chapter, such premises shall not be reconnected until such violation,
condition, or defect is corrected and the customer, has paid a reconnection
charge to the City. There shall be a five dollar ($5.00) reconnection
charge for a reconnection made during regular working hours and a fifteen
dollar ($15.00) reconnection charge for a reconnection made at any time
other than during regular working hours.
Section 3. Severability Clause
If any section, subsection, sentence, clause or phrase of this
ordinance is for any reason held to be unconstitutional, such decision shall
not affect the remaining portions of this ordinance. The City Council
declares it would have passed this ordinance and each section, subsection,
sentence, clause and phrase thereof irrespective of the fact that any one or
more of such provisions be declared unconstitutional.
16
okgki.1677NCS
Section 4. The City Clerk is hereby directed to post this ordinance
for the period and in the manner specified by law.
Introduced
and
ordered posted
this 17th
day of February_►
1987.
ADOPTED
the
6th day of
April
1987, by the
following
vote.
AYES: Davis, Woolsey, Cavanagh, Balshaw, Vice Mayor Tencer, Mayor Hilligoss
PLEiI06V
ABSENT: Sobel
ATTEST:
City Clerk
cross -connection
ORD2
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