HomeMy WebLinkAboutAgenda Report - January 16, 2008 E-05AGENDA ITEM 6-0S
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COUNCIL COMMUNICATJON
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AGENDA TITLE: Accept Improvements Under Contract for the Water and Wastewater Main
Replacement Program, Project No. 3, Various Locations
MEETING DATE: January 16, 2008
PREPARED BY: Public Works Director
RECOMMENDED ACTION: Accept the improvements under the Water and Wastewater Main
Replacement Program, Project No. 3 contract.
BACKGROUND INFORMATION: The projectwas awarded to J. F. Pacific Liners, Inc., of Vacaville,
on December 6,2006, in the amount of $825.575. The contract has
been completed in substantial conformancewith the plans and
specifications approved by City Council.
The City's Water and Wastewater Main Replacement Program is intended to systematically replace and,
where needed, upgrade existing water and wastewater infrastructure with in the oldest areas of the City.
In these older areas, wastewater pipelines are mostly constructed of terracotta or concrete pipe and the
waterlines are largely constructed of small -diameter cast iron or steel pipe. The majority of these pipes
are in need of rehabilitation and/or replacement.
Project No. 3 was the third project in this program and focused on rehabilitating wastewater mains that
are located in the greater Downtown area. Project No. 3 included in-place (trenchless) rehabilitation of
approximately 10,900 linear feet of 6 -inch diameter wastewater main, the rehabilitation of 61 manholes,
and the reconnection of 322 wastewater laterals.
The final contract price was $760,926.78. The difference between the contract amount and the final
contract price was mainly due to a reduction/elimination of several contract items and two contract change
orders. The engineer's estimate for the contract item to rehabilitate the 6 -inch diameter wastewater main
was 12,500 linear feet and only 10,900 linear feet was actually installed (a decrease in the contract of
$43,011). In addition, only seven point repairs were performed by the contractor as opposed to the 25
point repairs in the original contract (a decrease in the contract of $84,000). Contract Change Order No. 1
added $11,462 to the contract and compensated the contractorfor work done to cut protruding laterals in
the wastewater main. Contract Change Order No. 2 increased the contract amount by $48,999.58. This
second change order was issued to Pacific Liners, Inc., to pay for the pre -lining cleaning and Closed Circuit
Television (CCTV) work in the wastewater mains, the additional work and time needed to work in the
wastewater mains which were holding wastewater due to sags, adjustments in the contract quantities and
the adjustment in overhead costs due to the reduction in contract quantities. Contract Change Order No. 2
also included the elimination of Wastewater Improvement Contract Item No. 5, "Wastewater Service
Cleanout" and the Wastewater Improvement Contract Item No. 7, "Abandon Existing Wastewater
Manhole".
APPROVED:
Blair King7,7� Manager
K1WP1PROJECTSIWATER1EastsideWaterWastewaterRehab4Project #ftaccept doc
11812008
Accept Improvements Under Contract for the "Water and Wastewater Main Replacement Program,
Project No. 3, Various Locations
January 16,2008
Page 2
Following acceptance by the City Council, as required by law, the City Engineerwill file a Notice of
Completion with the County Recorder's office. The notice serves to notify vendors and subcontractors
that the project is complete and begins their 30 -day period to file a stop notice requiring the City to
withhold payments from the prime contractor in the event of a payment dispute.
FISCAL IMPACT: The newwastewater mains should result in a slight decrease in
maintenance costs.
FUNDING AVAILABLE: This project is partially funded by an EPA State and Tribal Assistance Grant
account for water, wastewater, and groundwater infrastructure projects.
The grant will fund $385,700 of the project construction costs.
EPA Grant Funds (EPA reimbursement to City) $385,700.00
Water/Wastewater Capital Maintenance funds (171678) $375,226.78
Richard C. Prima,
Public Works Direct
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Prepared by Wes Fujitani, Senior Civil Engineer
RCPMFlpmf
w: Charles Swimley, Water Service Manager
K 1WP\PROJECTS\WATER\EastsideWaterWastewaterRehab\Project #3lcaccept doc 11812008