HomeMy WebLinkAboutAgenda Report - November 19, 2008 E-10AGENDA ITEM E** 10
&a% CITY OF LODI
NW COUNCIL COMMUNICATION
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AGENDA TITLE: Report on Contract Change Orders for White Slough Water Pollution Control
Facility Phase 3 Improvements Project 2007
MEETING DATE: November 19,2008
PREPARED BY: Public Works Director
RECOMMENDEDACTION: This item is for information only. No action is required.
BACKGROUND INFORMATION: In accordance with the Contract Change Order Policy, the
City Council is being informed of change orders approved by the
City Managerfor this project since the July 16, 2008 Council
meeting. Council also authorized the concrete lining of Sludge
Lagoon No. 1 (Change Order No. 31) at the July 16, 2008 meeting. The original contract for this project
was $16,387,000. The total cost of change orders to date is $7,008,720, which is 42.8% of the original
contract. Excluding Change Order No. 11 (emergency slip lining of the domestic outfall), the total of the
other changes are 15% of the original contract. The project is approximately 92% complete. Detailed
below is a description of the work involved in the change orders. Complete descriptions and backup
information for these change orders are available in the Public Works Department.
Change Order No. 31 - This change order is for concrete lining of Sludge Lagoon No. 1 as
authorized by City Council on July 16, 2008. ($787,585)
Change Order No. 32 - This change order is for changes to the UV system to assist in plant
operation maintenance, code -required hand rail at DigesterNo. 4, and a new sample pipe to the
domestic outfall pipe for laboratory testing needs. ($26,148)
Change Order No. 33 - This change order is for changes in the Administration building, including
adding an office for the Chief Operator and increasing the size of the men's locker room. ($44,078)
Change Order No. 34 - This change order is for electric control changes to various Load Control
Panels (LCP's) for proper control and monitoring of equipment. The work is to bring the control
system for older equipment on line with the new SCADA system. ($38,862)
Change Order No. 35 - This change order is for substantial work related to electrical grounding of
the old electric service system at the facility. Additional grounding wires and controls are necessary
to increase worker safety at the plant. The City and the contractor have worked with an electrical
engineering firm to design a safer electric system at the facility. ($391,996)
Change Order No. 36 - This change order is for purchasing and installing 12 new Variable
Frequency Drives (VFD's) to replace aging and unreliable equipment. By purchasing this
equipment through the contractor, the City is saving $60,000. ($330,793)
The total contract to date is $23,395,720.
APPROVED:
Blair Kin0, City Manager
K 1WP\PR0JECTSISFWERIWSWPCF\White SlaughWPCF Phase 3 Improvements20071CC Notify of C0 4 WSWPCF Phase 2007 doc 1111312008
Report on Contract Change Orders for White Slough Water Pollution Control Facility Phase 3
Improvements Project 2007
November 19.2008
Page 2
FISCAL IMPACT: None.
FUNDING AVAILABLE: There are sufficient funds budgeted in the original project appropriation to
CO
vert six change orders.
Evans, Budget Manager
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F. Wally ndelin
Public Works Director
Prepared by Gary Wiman. Construction Project Manager
FWS/GW/pmf
cc: Charles Swimley. Water Services Manager
Del Kerlin. Wastewater Treatment Superintendent
K:1WPIPROJECTS1SEWERIWSWPGFIWhite SloughWPCF Phase 3Improvements 20071CC Notify of C04 WSWPCF Phase 32007.doc 111312008