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installed at the end of the ser-
<br />vice connection, then the sar.
<br />vice connection shall mean the
<br />
<br />takeoffs from the service line
<br />ahead of any meter of backflow
<br />
<br />nec:ion shall also include water
<br />service connection from a fire
<br />hydrant and all other temporary
<br />
<br />nections :rom the public pota-
<br />ble water system.
<br /> 2.17 WATER . USED. Any
<br />water supplied by a Water Purr.
<br />eyor from a public potable water
<br />
<br />system after it has passed
<br />through the point of delivery
<br />and is no longer under the sani-
<br />tary control of the Water Purve-
<br />yor
<br /> Section 3 REQUIREMENTS
<br /> 3,1 WATER SYSTEM
<br /> 3.1.1 The water system
<br />shall be considered as made up
<br />of two parts: The Utility System
<br />and the Customer System.
<br /> 3.1.2 Utility System shall
<br />consist of the source facilities
<br />and the distribution system;
<br />and shall include all those f acili-
<br />ties of the water system under
<br />the complete control of the utili-
<br />ty, up to the point where the
<br />customer's system begins.
<br /> 3.].3 The source shall ,n.
<br />clude all components of the fa-
<br />cilities utilized in the produc
<br />:ion, treatment, storage, and
<br />delivery of water to the distribu-
<br />tion system.
<br /> 3,].4 The distribution sys-
<br />tem shall include the network of
<br />conduits used for the delivery of
<br />water from the source to the
<br />
<br /> 3.1.5 The customer's sys.
<br />tern shall include those parts of
<br />the facilities beyond the termi-
<br />nation of the utility distribution
<br />system which are utilized in con
<br />veymg utility-delivered domestic
<br />water to points of use.
<br /> 3.2 POLICY
<br /> 3.2.1 No water service con.
<br />nection to any premises sha/I be
<br />installed or maintained by the
<br />Water Purveyor unless the wa-
<br />ter supply is protected as re.
<br />quired by state laws and regula-
<br />tion and this Ordinance. Service
<br />
<br />be discontinued by the Water
<br />Purveyor if a backflow preven-
<br />tion device required by the Ordi.
<br />nance ~s not installed, tested
<br />and maintained, or if it is found
<br />that a peckflow prevention dev-
<br />ice has been removed, by
<br />passed or if an unprotected
<br />
<br />premises. Service will not be
<br />restored until such conditions
<br />or defects are corrected,
<br /> 3.2.2 The customer's sys.
<br />tern should be open for inspec
<br />:ion at all reasonable times to
<br />authorized representatives of
<br />the Director of Public Works to
<br />
<br />sanitary hazards, including we-
<br />la:ions of these regulations, ex
<br />is:. When such a condition be-
<br />comes known, the Director of
<br />Public Works shall deny or ~m-
<br />
<br />the premises by providing for a
<br />physical break in the service line
<br />until the customer has correct-
<br />ed the condition(s) in conform-
<br />anco with State and City stat-
<br />utes relating to plumbing and
<br />water supplies and the regula-
<br />:ions adopted pursuant thereto,
<br /> 3.2.3 An approved backflow
<br />prevention device shall also be
<br />
<br />cases, before the first branch
<br />line leading oft the service line
<br />wherever the following condi.
<br />
<br /> 3.2.3a In the case of prem-
<br />ises having an auxiliary water
<br />supply which is not or may not
<br />be of safe bacteriological or
<br />chemical quality and which is
<br />not acceptable as an additional
<br />source by the Director of Public
<br />Works, the public water system
<br />shall be protected against back-
<br />flow from the prem*ses by in-
<br />stalling a backflow prevention
<br />device in the service line appro-
<br />pbate to the degree of hazard.
<br /> 3.2.3b In the case o! pram
<br />ises on which any industrial
<br />fluids or any other obiection able
<br />substance is handled in such a
<br />fashion as to create an actual or
<br />potential hazard to the public
<br />water system, the public system
<br />shall be protected against back-
<br />flow from the premises by in.
<br />stalling a backflow prevention
<br />device in the service line appro-
<br />priate to the degree of hazard.
<br />This shall include the handling
<br />
<br />originating from the utility sys-
<br />tern which have peen subiect to
<br />deterioration in quality.
<br /> 3,2,3c In the case of pram-
<br />ises having (]) internal cross-
<br />connections that cannot be per-
<br />
<br />manently corrected and con.
<br />trolled, or (2) intricate plumbing
<br />and piping arrangements or
<br />where entry to all portions of the
<br />
<br />bio for inspection purposes,
<br />making it impracticable or ira.
<br />
<br />tions exist, the public water sys.
<br />tern shall be protected against
<br />backflow from the premises by
<br />installing a peckRow prevention
<br />device in the service line,
<br /> 3.2.4 The type of protective
<br />device required under subsec-
<br />tions 3.2.se, b and c shall de-
<br />pond upon the degree of hazard
<br />which exists as follows:
<br /> 3.24a In the case of any
<br />
<br />diary water supply as stated in
<br />subsection 3.23a of this sec
<br />tion and it is not subject to any
<br />of the following rules, the public
<br />water system shall be protected
<br />by an approved air-gap separa-
<br />:ion or an approved reduced
<br />pressure principle backflow
<br />prevention device.
<br /> 3.24b In the case of any
<br />premises where there is water or
<br />substance that would be ObleC
<br />tionable but not hazardous to
<br />health, if introduced into the
<br />public water system, the public
<br />water system shall be protected
<br />by an approved double check
<br />valve assembly.
<br /> 3 24c In the case of any
<br />
<br />material dangerous to health
<br />which is handled in such a fasb.
<br />
<br />tential hazard to the public wa-
<br />tar system, the public water sys-
<br />tem shall be protected by an
<br />approved air.gap separation or
<br />
<br />principle backflow prevention
<br />device. Examples of premises
<br />where these conditions will exist
<br />include chemical manufactur.
<br />mg plants, hospitals, mortuar-
<br />les and plating plants.
<br /> 3.24d In the case of any
<br />
<br />:ions. either actual or potential,
<br />the public water system shall be
<br />protected by an approved air-
<br />gap separation or an approved
<br />reduced pressure principle
<br />backtlow prevention device at
<br />
<br /> 3,2,4e In the case of any
<br />
<br />prohibitions or restrictions it is
<br />impossible or impractical to
<br />make a complete in-plant cross-
<br />connection survey, the public
<br />water system shall be protected
<br />against backflow or back-si-
<br />phonage from the premises by
<br />the installation of a beckflow
<br />prevention device in the service
<br />line, In this case, maximum
<br />protection will be required; that
<br />is, an approved air*gap sepora.
<br />tion or an approved reduced
<br />pressure principle backflow
<br />prevention device shall be ~n.
<br />stalled in each service to the
<br />
<br /> 3.2.4f In the case of pram-
<br />
<br />sewage lines, pumps, flushers,
<br />etc., the public water system
<br />shall be protected by an ap-
<br />
<br />approved reduced pressure
<br />prmc~ple backPow prevention
<br />device. Examples include se.
<br />wage treatment plants and
<br />pumping stations
<br /> 3.248 in the case of Tank.
<br />er and Spray Tanks of 49 gal
<br />
<br />:ion device is required.
<br /> 3.25 Any backflow proven.
<br />:ion device required herein shall
<br />be of a model and size approved
<br />by the Director of Public Works.
<br />The term *'Approved Backflow
<br />Prevention Device" shall mean
<br />a device that has been manu-
<br />
<br />with the standards established
<br />by the American Water Works
<br />Asscciation (AWWA) entitled:
<br /> AWWA C506-78 Standards
<br />
<br />and Double Check Valve Rack.
<br />flow Prevention Devices:
<br />and, have met completely the
<br />laboratory and field perform
<br />ance specifications of the Foun
<br />da:ion for Cross. Connection
<br />Control and Hydraulic Research
<br />(FCCC & HR) of the University of
<br />Southern California established
<br />by
<br /> Specifications of Backflow
<br />Prevention Device5 · =69-2 da:
<br />ed March ]969 or the most cur-
<br />
<br /> Said AWWA and FCCC & HR
<br />standards and specifications
<br />have been adopted by the Direc-
<br />tot of Public Works Final ap-
<br />proval shall be evidenced by a
<br />"Certificate of Approval" issued
<br />by an approved testing labora.
<br />tory certifying full compliance
<br />with said AWWA standards and
<br />FCCC & HR Specifications The
<br />
<br />following testing laboratory has
<br />been qualified by the Director et
<br />Public Works to test and certify
<br />backflow preventers:
<br /> Foundation for
<br /> Cross. Connection Control
<br /> and Hydraulic Research,
<br /> University of
<br /> Southern California,
<br /> University Park,
<br />Los Angeles, CA 90007
<br />Testing laboratories other
<br />than the laboratory listed above
<br />will be added to an approved list
<br />as they are qualified by the Di-
<br />rector of Public Works.
<br /> Backflow preventers which
<br />may be subjected to back pres-
<br />sure or back-siphonage that
<br />have been fully tested and have
<br />been granted a Certificate of
<br />Approval by said qualified labor-
<br />atory and are listed on the la-
<br />boratory's current list of "Ap-
<br />proved Devices" may be used
<br />without further test or qualifica-
<br />tion.
<br /> 32.6 It shall be the duty of
<br />the customer user at any pram.
<br />ises where backflow prevention
<br />devices are installed to have
<br />certified inspections and opera.
<br />tional tests and repairs made at
<br />least once per year, in those in-
<br />stances where The Director of
<br />Public Works deems the hazard
<br />to be great enough, he may re-
<br />quire certified inspections at
<br />more frequent intervals, These
<br />inspections, texts and repairs
<br />shall be at the expense of the
<br />water user and shall be per-
<br />formed by the device manufac-
<br />turer's representative, or by a
<br />Lertified tester approved by the
<br />Director of Public Works. It shall
<br />be the duty of the Director of
<br />Public Works to see that these
<br />timely tests are made. The cus-
<br />tomer-user shall notify the Di-
<br />rector of Public Works in od-
<br />vance when the tests are to be
<br />undertaken so that he or
<br />representative may witness the
<br />tests if so desired These dev-
<br />ices shall be repaired, over-
<br />hauled or replaced by a certified
<br />individual or agency at the ex-
<br />pense of the customer-user
<br />whenever said devices are
<br />found to be defective, Records
<br />of such tests, repairs and over-
<br />haul shall be kept and made
<br />available to the Director of Pub-
<br />lic Works.
<br /> 32.7 AH presently installed
<br />backflow prevention devices
<br />which do not meet the redu~re-
<br />ments of this section but were
<br />approved devices for the pur.
<br />poses described herein at the
<br />time of installation and which
<br />have been properly maintained,
<br />shall, except for the inspection
<br />and maintenance requirements
<br />under subsection 3.2~6, be ex-
<br />cluded from the requirements
<br />of these rules so long as the Di-
<br />rector of Public Works ~s as-
<br />sured that they will satisfactori-
<br />ly protect the utility system,
<br />Whenever the existing device is
<br />moved from the present Ioca.
<br />tion or requires more than mini.
<br />mum maintenance or when the
<br />Director of Public Works finds
<br />that the maintenance consti-
<br />tutes a hazard to health, the
<br />unit shall be replaced by a back.
<br />flow prevention device meeting
<br />the requirements of this sec-
<br />tion
<br /> 3.28 All existing water con-
<br />nec:ions which may be deemed
<br />by the Director of Public Works
<br />to be subject to backflow pre-
<br />vention will, upon written not-
<br />ice, have an appropriate back
<br />flow prevention device installed
<br />and inspected within sixty (60)
<br />days of said notification.
<br /> Section 3, This ordinance
<br />shall be published once within
<br />fifteen (15) days after its adop-
<br />tion in "The Valley Times." a
<br />newspaper of general circula-
<br />tion published in the City of
<br />Pleasanton
<br /> Section 4. This ordinance
<br />shall become effective thirty
<br />(30) days after the date of its
<br />final passage and adoption.
<br />
<br /> INTRODUCED at a regular
<br />meebng of the City Council of
<br />the City of Pleasanton on Fe-
<br />bruary 9, 1982.
<br /> ADOPTED at a regular meet-
<br />ing of the City Council of the
<br />City of Pleasanton on February
<br />23, 1982 by the following vote:
<br /> AYES: Councilmembers -
<br />Butler, Kephart, Mohr, Wood
<br />and Mayor Mercer
<br /> NOES: None
<br /> ABSENT: None
<br /> ABSTAIN: None
<br /> KENNETH R. MERCER,
<br /> MAYOR
<br />ATTEST:
<br />James R Walker.
<br />City Clerk
<br />By Doris George,
<br />Deputy City Clerk
<br />APPROVED AS TO FORM:
<br />Brian W. Swift,
<br />Acting City Attorney
<br />Legal PT-VT 5175
<br />Publish March 5, 1982
<br />
<br />
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