HomeMy WebLinkAboutOC-44 Water Transmission Pipeline - Appropriate funds for em77L7 St o
Council/Agency Meeting Held:
Deferred/Continued to:
'd.Appr ve ❑ Conditionally Approved ❑ Denied Ci Cler s Sign tune
Council Meeting Date: April 16, 2012 Department ID Number: PW 12-016
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SUBMITTED TO: Honorable Mayor and City Council Members
SUBMITTED BY: Fred A. Wilson, City Manager
PREPARED BY: Travis K. Hopkins, PE, Director of Public Works
SUBJECT: Appropriate funds for the emergency repair of the OC-44 Water
Transmission Pipeline
Statement of Issue:
On September 3, 2011, a major break occurred on the 42-inch OC-44 Water Transmission
Pipeline. The City of Huntington Beach is a co-owner of this high pressure transmission
pipeline and according to the terms of the 1964 ownership agreement, the City is responsible
for 41.4% of the costs of the repair.
Financial Impact:
Funds for the repair were not included in the fiscal year 2011/12 budget. An appropriation of
$420,000 from the undesignated, unappropriated balance of the Water Fund is needed.
Recommended Action: Motion to:
Appropriate $420,000 from the undesignated, unappropriated balance of the Water Fund to
Account No. 50685801.67725 (Import Connection Maintenance) for payment of emergency
repairs to the OC-44 Water Transmission Pipeline.
Alternative Action(s): Deny the appropriation and direct staff accordingly.
HB -295- Item 9. - 1
REQUEST FOR COUNCIL ACTION
MEETING DATE: 4/16/2012 DEPARTMENT ID NUMBER: PW 12-016
Analysis:
On September 3, 2011, a major rupture occurred on the OC-44 Water Transmission Pipeline.
The break was located on a section of the pipeline that runs under the San Diego Creek in an
area proximate to the 73 Freeway and University Drive. OC-44 is a turnout of the East
Orange County Feeder No. 2 and is one of the City's three imported water connections,
delivering water from the Metropolitan Water District of Southern California (MWD). The City
imports approximately 35 percent of its supply of potable water.
The City of Huntington Beach and the Mesa Consolidated Water District (Mesa) are the joint
owners of the OC-44 pipeline that extends from Irvine to the City of Huntington Beach.
According to the original 1964 agreement, the City is responsible for 41.4 percent of the
costs of maintenance and repair. In accordance with the agreement, Mesa performs all
maintenance and repairs and invoices the City accordingly. The Water Fund budget includes
$30,000 for routine maintenance. These funds will not be sufficient for the repairs.
The repairs, including permitting, removal and replacement of the damaged section of pipe,
chlorination, testing, inspection and Mesa staff time, are estimated to cost $900,000, plus an
additional $60,000 for a pipeline failure study and analysis on how to prevent a future leak.
The location of this section of pipe under the San Diego Creek increases the complexity and
difficulty of making the repairs. The repairs require the use of divers to perform much of the
work underwater which increases the time required and the costs for repairs. Staff from the
City's Utilities Division of Public Works attended the project management meetings to provide
project review and recommendations. Specialists from MWD assisted with the design review
for the replacement section of pipe and inspection of underwater welding activities. In
addition to these costs, Mesa will need to upgrade a vault for a pressure relief valve along
Adams Avenue. The City's share of the cost of this project is estimated to be $20,000
Staff is requesting that Council authorize a total of $420,000 from the Water Fund for the
City's share of the repair costs, the study and the upgrade to the vault.
Public Works Commission Action: Not Applicable
Environmental Status:
All regulatory and permit requirements were the responsibility of Mesa Consolidated Water
District and have been addressed.
Strategic Plan Goal: Improve the City's infrastructure
Attachment(s): None
Item 9. - 2 xB -296-