HomeMy WebLinkAbout2004-09-21; City Council; 17796; Bypass Tee for Recycled Water Shut Down TestingCITY OF CARLSBAD - AGENDA BILL
TITLE: INTRODUCE ORDINANCE NO. NS-717
AMENDING THE CARLSBAD MUNICIPAL CODE TO REQUIRE
INSTALLATION OF BYPASS TEE FOR RECYCLED WATER
SHUT DOWN TESTING ON NEW BUILDINGS
4B# 17,796
JITG. 09/21 /04
IEPT. ENG
RECOMMENDED ACTION:
Adopt Resolution No. 2004-300 declaring the City‘s intention to require the installation of a bypass tee, and setting the public hearing to consider adoption of Ordinance No. NS- 717
Introduce Ordinance No. NS- 717 to add Section 18.16.080 to the Carlsbad Municipal Code to Require Installation of Bypass Tee for Recycled Water Shut Down Testing on New Building Construction.
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ITEM EXPLANATION:
Continuing limited water resources in California have made it necessary for local agencies to implement the use of recycled water as a conservation measure. Discharge Order No. 2001-352, which was adopted by the
California Regional Water Quality Control Board, San Diego Region, governs the delivery of recycled water to customers in Carlsbad. Section C2 (b) of the Discharge Order requires that the City conduct a complete cross connection shut down test prior to providing recycled water to a new use site and annually thereafter. The test is performed by a certified cross-connection control specialist with oversight and monitoring provided by the County Department of Environmental Health. The purpose of the shut down test is to ensure that there are no discoverable cross connections between the potable water system and the recycled water system.
The mandatory procedure for the shut down test includes a requirement that the potable water system be shut down at its point of connection. As a result, the water customer is not being supplied potable water during the testing time period, which is a minimum of four hours.
Staff has been coordinating scheduling to accommodate the needs of each recycled water use customer to perform these tests, but in some situations, such as apartment buildings and commercial facilities such as restaurants and grocery stores, the coordination effort can be extensive and disruptive to the water customer. To resolve this situation, other recycled water purveyors have developed a modification to the customer’s onsite plumbing system that enables the potable water supply to be maintained to the building while the shut down testing work is being performed. The modification includes installing a tee on the above ground water main before the pipe enters the building. The tee includes two valves that enable the cross-connection control specialist to temporarily bypass the building’s main pipeline by connecting a hose from the public water system to the building. The cross connection control specialist can then shut off the potable water from the meter to the building without interrupting the potable water supply. The final assembly with valves is referred to as a
“bypass tee”.
Staff recommends that effective November -, 2004, all new buildings constructed in the City shall be required to install a bypass tee for recycled water shut down testing. The size of the tee and associated ball valves shall match the size of the incoming main line piping designed for the building. The bypass tee shall be located above ground before the water main branches into the building’s distribution system. The bypass tee shall be threaded to fit a 1-1/2” fire hose fitting.
ENVIRONMENTAL IMPACT:
This activity is not subject to CEQA in accordance with the general rule that there is no possibility of environmental impact per Section 15061 (b) (3).
FISCAL IMPACT:
The City will not incur additional costs. There will be a reduction in the City‘s overtime to perform the shut down test. Additionally, the property owner will experience less administrative cost in coordinating with the City to perform the shutdown test. The Costs to the builder will vary depending on the pipe size. Material costs are estimated to be typically less than $300 for each assembly. Labor costs for new installations should be minimal because the plumber during construction will be performing similar work at the same time to assemble the piping for the building.
Page 2 of Agenda Bill No. l7v7%
EXHIBITS:
1. Resolution No. 2004-300a resolution of the City Council of the City of Carlsbad, California, declaring the
City’s Intention to require the installation of a bypass tee for new building construction, and setting the public
hearing to consider adoption of Ordinance No. NS- 717
amending Title 18, Chapter 18.16.080 by the addition of Section 609.1 1 to the Carlsbad Municipal Code to amend by reference the Uniform Plumbing Code, 2001 Edition to
require installation of bypass tee for recycled water shut down test.
2. Introduce Ordinance No. NS- 717
3. Carlsbad Municipal Water District Standard Drawing W35, “Bypass Tee for Recycled Water Testing”
DEPARTMENT CONTACT: William Plummer, (760) 602-2768, bplum@ci.carlsbad.ca.us
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RESOLUTION NO. 2004-300
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
CARLSBAD, CALIFORNIA, DECLARING THE CITYS INTENTION TO
REQUIRE A BYPASS TEE FOR NEW BUILDING CONSTRUCTION,
AND SETTING THE PUBLIC HEARING TO CONSIDER ADOPTION
OF ORDINANCE NO. NS-717
WHEREAS, the City Council of the City of Carlsbad, California, is considering to require
he installation of a bypass tee on new building construction to assist in performing recycled water
;hutdown testing; and
WHEREAS, the City Council may adopt Ordinance No. NS-717 to require new
luilding construction to install a bypass tee for recycled water testing.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Carlsbad,
;alifornia, as follows:
1.
2.
That the above recitations are true and correct.
That the City does hereby declare its intention to proceed to authorize the
istallation of the bypass tee on new building construction, by adopting Ordinance No.
for the purpose of amending Title 18, Chapter 18.16 of the Carlsbad Municipal Code NS-717
,y addition of Section 18.16.080
3. For any and all information relating to these proceedings, your attention is directed
3 the below designated person:
WILLIAM E. PLUMMER
DEPUTY CITY ENGINEER
CITY OF CARLSBAD
1635 FARADAY AVENUE
CARLSBAD, CA 92008.
it least fourteen (14) days prior to the public meeting to consider adopting Ordinance No.
~-717 staff will publish at least once in a newspaper of general circulation in the City of
zarlsbad a notice of the public hearing and its purpose.
Y
Y
It
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4. The public hearing to consider adoption of the proposed ordinance shall be held on
October 12, 2004 at the Council Chambers of the City of Carlsbad.
PASSED, APPROVED AND ADOPTED at a regular meeting of the Carlsbad City Council
held on the 21st day of September , 2004 by the following vote, to wit:
AYES: Council Members Lewis, Finim Kulchin, Hall and Packard.
ABSENT: None
ATTEST P
(SEAL)
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ORDINANCE NO. NS 71 7
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
CARLSBAD, CALIFORNIA, AMENDING TITLE 18, CHAPTER
18.16.080, BY THE ADDITION OF SECTION 609.11 TO THE
CARLSBAD MUNICIPAL CODE TO AMEND BY REFERENCE THE
UNIFORM PLUMBING CODE, 2001 EDITION TO REQUIRE
INSTALLATION OF BYPASS TEE FOR RECYCLED WATER SHUT
DOWN TEST.
The City Council of the City of Carlsbad, California, does ordain as follows:
SECTION 1 : The City Council finds that unique circumstances require certain amendments to
the Uniform Plumbing Code. The amendments set forth in this ordinance are reasonably
necessary because of the local climate, which includes low rainfall and periods of drought. It
has become necessary to expand the use of recycled water throughout the city in order to
conserve potable water. Cross-connection testing is required by State law as well as by
California Regional Water Quality Control Board, San Diego Region Order Number 2001 -352,
which is the Master Reclamation Permit for the Carlsbad Municipal Water District.
SECTION 2: That Title 18, Chapter 18.16 of the Carlsbad Municipal Code is amended by
the addition of Section18.16.080 to read as follows:
18.16.80 Section 609.12 is added to the Uniform Plumbing Code to read:
Effective November 11, 2004, all new buildings where recycled water will be used for irrigation
shall install on the building supply pipe a bypass tee for recycled water cross-connection shut
down testing. The bypass tee shall be constructed of copper and the size shall match the building
supply pipe size approved for the building. The bypass tee shall be connected to the building
supply pipe above ground and before the pressure regulator at a point just before it enters the
building. Both end connections to the building supply pipe shall be made using a union. A bronze
full port straight ball valve with handle shall be installed on the inlet side of the bypass tee for the
building supply pipe, and sized to match the inlet tee. A bronze full port straight ball valve with tee-
head and padlock wing shall be installed on the side inlet tee, which shall be threaded with a male
hose thread adapter to match the building supply pipe size. The work shall be in conformance with
Engineering Standard Drawing W35. All shut down tests using the bypass tee shall be conducted
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with a backflow prevention device to reduce potential for contamination of the potable water
system.
EFFECTIVE DATE: This ordinance shall be effective thirty (30) days after its adoption and
the City Clerk, City of Carlsbad, shall certify to the adoption of this ordinance and cause it to be
published at least once in a newspaper of general circulation in the City of Carlsbad within fifteen
(1 5) days after its adoption.
INTRODUCED AND FIRST READ at a regular meeting of the Carlsbad City Council held
on the 21st day of September , 2004 and thereafter.
PASSED, APPROVED AND ADOPTED at a regular meeting of the Carlsbad City Council
, 2004 by the following vote, to wit: held on the day of
AYES:
NOES:
ABSENT:
CLAUDE A. LEWIS, Mayor
ATTEST:
LORRAINE M. WOOD, City Clerk
APPROVED AS TO FORM AND LEGALITY
RONALD R. BALL, City Attorney
(SEAL)
p?
1 I -I
I ITEM I DESCRl PTI ON
I 2 12” x 2” x 2” COPPER TEE I
3 2” MALE x COPPER ADAPTER
4 2” BALL VALVE WITH HAND LEVER
5 TYPE L COPPER
6 2” x 1.5” FIRE HOSE FITTING
7 2” BALL VALVE WITH PADLOCK WING
ITEM I DESCRIPTION I SPEC/DWG
I I
3EV. APPROVED DATE^ - CARLSBAD MUNICIPAL WATER DISTRICT I jk 6-04
BYPASS TEE
FOR RECYCLED WATER TESTING
-- I CITY ENGINEER DATE
7
Building Standards Commission
2525 Natomas Park Drive, Suite 130
Sacramento, CA 95833
Re: Local Amendment to the City of Carlsbad’s Adopted California Plumbing
Code
Dear Sir,
The City of Carlsbad recently modified the City’s adopted California Plumbing
Code to include a requirement for installation of a ”bypass tee” to be installed on
the potable water service for new buildings. The requirement is only applicable in
situations where the developer is required to provide recycled water for irrigation
of landscape areas with recycled water. Carlsbad is generally requiring irrigation
with recycled water on all non-residential projects and some multi-family projects
with common area landscaping.
The bypass tee affords the water purveyor a means by which they may test for
cross-connections without shutting off the customer’s water supply inside the
building. Cross-connection testing is required by State law and the Regional
Water Quality Control Board.
Findings with respect to the local climatic conditions (low rainfall and periods of
this more restrictive code requirement are noted in the
your public service,
Patrick Kelley
Building and Code Enforcement Manager
City of Carlsbad, California
p kellaci. carls bad. ca. us
(760) 602-271 6
C: Deputy City Attorney Ronald Kemp
Deputy City Engineer William Plummer
City Clerk
&6 17?17
1635 Faraday Avenke Carlsbad, CA 92008-7314 (760) 602-2700 FAX (760) 602-8560 @
Building Counter (760) 602-2719 FAX (760) 602-8558