HomeMy WebLinkAbout05 - Water Well RehabilitationCITY OF NEWPORT BEACH
CITY COUNCIL STAFF REPORT
Agenda Item No. 5
April 28, 2009
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: Public Works Department
Andy Tran
949 - 644 -3315 or atran @city.newport- beach.ca.us
SUBJECT: WATER WELL REHABILITATION DOLPHIN AND TAMURA SHALLOW
WELLS — COMPLETION AND ACCEPTANCE OF CONTRACT NO. 4053
RECOMMENDATIONS:
1. Accept the completed contract work.
2. Authorize the City Clerk to file a Notice of Completion.
3. Authorize the City Clerk to release the Labor and Materials bond 35 days after
the Notice of Completion has been recorded in accordance with applicable
portions of the Civil Code.
4. Release the Faithful Performance Bond 1 year after Council acceptance.
DISCUSSION:
On September 9, 2008, the City Council authorized the award of the Water Well
Rehabilitation — Dolphin and Tamura Shallow Wells project to General Pump Company.
The contract provided for cleaning of the water well casing and rebuilding the pump and
motor at each site. The contract has now been completed to the satisfaction of the
Public Works Department. A summary of the contract cost is as follows:
Original bid amount: $255,100.00
Actual amount of bid items constructed: $251,900.00
Total amount of change order: $7,065.00
Final contract cost: $258,965.00
The decrease in the amount of actual bid items constructed over the original bid
amount resulted from the reduction of test pumping time. The reduction of test
pumping time will not have any adverse effect on the rehabilitation of the wells. The
one change order was for additional labor and material needed to rebuild the Tamura
pump and motor. The final overall construction cost including one change order was
1.5 percent over the original bid amount.
Water Well Rehabilitation - Completion and Acceptance of Contract No. 4053
April 28, 2009
Page 2
A summary of the project schedule is as follows:
Estimated completion date per June `08 schedule: January 23, 2009
Project award for construction: September 9, 2008
Estimated completion date at award: February 20, 2009
Revised completion date: March 27, 2009
Actual substantial construction completion date: March 25, 2009
The revised completion date accounted for 10 non - working days due to inclement
weather. It also reflected an additional 15 working days needed to complete the work
described in the change order.
The results of the well rehabilitation were positive. Current performance levels at both
wells are similar to that the performance levels when they were originally constructed in
1996.
In addition to the primary construction contract, this project involved other project
expenses. Total project expenses are summarized as follows:
Construction $258,965.00
Design — Richard C. Slade & Associates $41,000.00
Incidentals $90.00
Total Project Cost $300,055.00
Environmental Review:
The project was determined to be exempt from the California Environmental Quality Act
(CEQA) pursuant to Section 15301 of the CEQA Implementation Guidelines at the time
the project was authorized by the City Council. This exemption covers the repair of
existing facilities involving negligible or no expansion of existing use.
Funding Availability:
Funds for the construction contract were expended from the following account:
Account Description
Water Enterprise
Prepared by:
Andy Tra
Senior Civil Engineer
Account Number Amount
7503- C6001002 $258,965.00
Total: $258,965.00
Submitted
Stephen G. Badum
Public Works Director