HomeMy WebLinkAboutOrdinance 1677 N.C.S. 04/06/1987.;
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ORDINANCE NO. 1677 N.C.S..
Introduced by
Jack Cavanagh
Seconded by
Vice Mayor Tencer
AN ORDINANCE SETTING FORTH REQUIREMENTS FOR THE
`PROTECTIO.N ~ OF 'THE PUBLIC- WATER SYSTEM BY
CROSS-CONNECTION •AN•D BACKFLOW CONTROL, BY REPEALING
SECTION 15.08:22-0 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 15.0.8.220: 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repealed .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.
15.09.0.40 Requirements for backflow preven ion devices.
15.09 .;0.5'0 Installation of backflow pr-eventon devices .
15.09.060 Testing: and repair of backflow prevention devices.
15.09.070 Work by City personnel..
15.09.0.8:0 :Requirements for certification of a backflow
prevention device tester
15.09.090 Right to enter customer's property.
15.09.100 Discontinuance of service.
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15.09.010 -Authority, Purposes and Incorporation
~- of California: Title. 17 Regulations.
(a,) Title• . 17,; ' Chapter . V, Section fi58'3-7622, inclusive, of the
California.. Administrative. Code entitled "':Regulations Relating to
Cross-Connections" , "sets" -forth rules and regulations governing
cross-connections. Said regulations are incorpora"ted 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- .wa-ter supply from back-flow, the requirements
hereinafter set forth are reasonable and necessary. The City adopts these
requirements for the protection of the public water supply from backflow.
New water service connections shall be ins ailed 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 connection .
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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 source(s) 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-sphonage.
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{ g) Certified Tester : Accepted by th'e Director of Public Works /City
• Engineer as meeting !applicable requiremen=ts stated or cited in this chapter.
~(h) Director of .Public WorkslCity Engineer-; The Director of Public
Wor.k's/City Engineer ~of the City of .Petaluma;.
(.i) Contamination : An impairmen;fi .of the quality of the potable water
by sewage, industr"al fluids or .waste liquids, .compounds, or other materials
to a degree which creates an actual h~az:ard 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-potab e -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
contaminated fixture:;, industrial fluid. system, or 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-~_sectons of ,pipe,.. •swive'1 or change-over devices, sliding multport
typ'e;;,,solid connectiori5., etc.
`:(k•) 'Cross=Connections - Controlled" A'connection between a potable
water. system anal a non-potable water system with an ,approved backflow
pxeventiori device,. `properly installed that wily. continuously afford the
protect"-ion„ 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
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customer's premises where it is physically and economically infeasible to find
and permanently eliminate or control a'li_ 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 vwa-ter 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 wafer .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.
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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, such. as pumps taking suction from reservoirs exposed to
contamination or from rivers and pond driven- wells; mills or other
industrial water system"s; 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., Degr-ee 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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1. Hazard -- Health: Any condition., device, or practice in the
water supply system and its operation which cowl"d 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 systemthat has: riot :been :properly protected. by a
' vacuum breaker., air-,gape 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 pgtability of the public or
the consumer's potable's water system but which would constitute a nuisance.
or be aesthetically objectio"nable or could cause damage to 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 po1~Tu:ton or contamination which
! would .have ~-a protracted effect ,oi `the: quality of ~~the potable water in the
system .
,(q)' ' Industrial, 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"
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• originating from the public potable water system which may have
deteriorated in sanitary' quality; chemica~Is 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 paraffins, 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,
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inorganic, or biological) in water which tends to degrade its quality so as
to constitute ahazard- 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 va°lves 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 assemb'lies;. 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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(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
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consumption or whic'h' ~is~ of questionable potability.
('v) Water `Service Conncct~ion: The terminal end of a service
connection from the public potable water system; i.e., where the Water
Purveyor loses jurisdiction and aanitary control over the water at its point
of delivery to the customer''s 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 temporar-y 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 fhe sanitary
control of the Water Purveyor.
15.09.040, -Requirements for B,aekflow 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.
1.~ 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
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system., including water originated from theCity'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-sphonage.
(b) Approved Backflow Prevention Device: Any b'a'ckflow ,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 Ghat has, been. manufactured in full conformance
with the standards established by the American Water Works Association
entitled: AWWA 0506-69 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 da#ed March, 1969,. or the most current issue.
Said AWWA and :FCCC & HR standards and specifications have been
adopted by th'e Director of Public Works/City Engineer. Finial 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 FCGC '& HR specifications.
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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 Requirementse 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 Cheek Valve
Auxiliary Water Systems
(interconnected.)
Beverage Bottling Plant.
Buildings with Booster-
Pump Systems a.nd/br
Water Storage Tanks
Car Washes
Film Processors
Fire Protection System
(C`lass I)
Fire Protection System
(Class II, III, IV)
Fire Protection Systems
(Class V, VI)
Hospitals /Laboratories /
Clinics
Double Check Valve
Double Cheek Valve
Air Gap
Double Check Valve
Reduced: Pressure
Single Check Valve
Double Check Valve
Reduced Pressure
Reduced Pressure
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Industrial and/or
Commercial (All) Reduced Pressure
Irrigation Systems (.A11)' pouble Cheek 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 StormDrain
Pumping Facilities. Air Gap
Swimming, Pools. Reduced Pressure
Tank Trucks or Chemical
Spray Rigs Air Gap
15.09.05b 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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water service and meter installation. The City will inspect the premises of
existing water service connections and steal-1 :require the installation of a
. backflow prevention device when, in the opinion of. the Director of Public
Works/City Engineer;- the water connection may :be subject to a potential
hazard. from .backflow ~'or; back--sphonage, An~.existng 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 installed' and 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 satisfactoril-y 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 anal
operational tests performed at least once per year. In those instances
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where the Director of,.. Public Works../City Engineer deems the hazard to be
great enou''gh, he may require certified .tesrts at~: more frequent intervals.
Whenever 'said devices ;are- found" 'to bedefective:; they shall be repaired and
immediately retested:. All ~ aes'ts ands. repairs .shall be performed only by a
certified tester as stated or cited in this chap-ter.:
All tests and repairs .shall be recorded' by a certified tester on forms
provided by the City. Tlie customer shall insure all. forms are complete and
submit them to the .City:. It shall be the C.ty''"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 .
15.09.07U _ Work by City Personnel
Alternatively, at its options, and upon notification of the customer,
approved City personnel may perform any or a'll '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, .togeaher with a fee .as may be established by the City
Council. Competency in all phases, of backflow prevention device testing
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and repair must, be demonstrated by means of education and/or experience
in .order to :obtain certification . The following are minimum requirements
1. Satisfactgr.y completion of the. ;Course for the Training and
Certification for Testers for Backfl'ow Prevention pevices offered by the
Foundation for Gross-;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 ;appl'cant for Certification 'as. a 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 .repor,ting. The tester shall
be responsible for 'the competency and a;ccuraey of all tests and reports
that are p-repared" 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 ~tFiat hake sati factorily completed training as in (1. )
above and have demonstrated their, competency in all phases of backflow
.. ,
prevention device testing and repair may be ~ approved by the Director of
PubTic~ .Works / City Engri~eer to inspect, test, and repair backflow prevention
devices 'for' the .City.
15.09 . Q90 - ,Right. to Ente"r Customer's Property
As a condition of water. service for 'new customers. and as a .condition
of continued water. ser--vice for existing customers, the customer may be
required to have a backflow prevention device installed on their private
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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 workin-g hours .
Section 3. Severablity 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.
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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
NOES
ABSENT: Sobel
ATTEST :
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City Clerk
cross-connection
ORD2
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