HomeMy WebLinkAboutItem 2e - Peck Well Project Complete
Accept Inspection and Rehabilitation of Peck Well Project
July 18, 2017
Page 1 of 3
DATE: July 18, 2017
TO: Honorable Mayor and City Council
FROM: Tom Tait, Public Works Services Director
By: Tiffany Lee, P.E., Associate Civil Engineer
SUBJECT: ACCEPT ALL WORK PERFORMED BY GENERAL PUMP COMPANY
FOR INSPECTION AND REHABILITATION OF THE PECK WELL
PROJECT AS COMPLETE
Recommendation: Approve
SUMMARY
On December 20, 2016, the City Council approved a contract with General Pump
Company in the amount of $161,760 for Inspection and Rehabilitation of the Peck Well
Project. The terms and conditions of this project have been complied with and the work
has been performed to the satisfaction of the Project Manager for a total project cost of
$128,245.89. This amount reflects the original contract amount of $161,760 minus
quantity changes totaling $33,514.11, or 20.72% less than the original contract amount.
It is recommended that the City Council accept all work performed by General Pump
Company for Inspection and Rehabilitation of the Peck Well Project as complete, and
authorize the final payment to be made in accordance with the contract documents,
subject to the retention of $6,412.29.
BACKGROUND
The City operates and maintains 12 active groundwater wells, which produce an
average of 16,500 acre-feet or 5.4 billion gallons of water to Arcadia customers each
year. Regular inspection and maintenance of City wells is crucial to ensuring that the
wells are operating at maximum production capacity and efficiency.
The American Water Works Association (“AWWA”) is a nonprofit organization that
develops and publishes standards for the proper treatment, transportation, and storage
of drinking water supplies. The AWWA Standards for Water Supply Wells recommend
performing preventative maintenance every seven to ten years. This includes removing
the well pump assembly, video inspecting the pump casing, and performing a
comprehensive inspection of the well pump assembly and components. The Public
Accept Inspection and Rehabilitation of Peck Well Project
July 18, 2017
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Works Services Department (“PWSD”) has developed a water supply well inspection
and rehabilitation program that follows these guidelines.
Each year, one to two wells are selected for preventative maintenance based on the
date of the last inspection, maintenance records, and the current well efficiency.
Preventative maintenance performed on the City’s water supply wells protects against
higher emergency repair costs and the possibility of not meeting system demands.
DISCUSSION
On December 20, 2016, the City Council approved a contract with General Pump
Company for Inspection and Rehabilitation of the Peck Well Project. The project began
with removal and inspection of the well motor, shaft, and pump, and video inspection of
the well casing. Based on this inspection, a scope of work consistent with the contract
documents was agreed upon by the contractor and the PWSD. The original contract
estimate for all work was $161,760. Once the well was pulled, a more defined project
cost was determined. The final construction cost of the project was $128,245.89.
The work included cleaning of the well casing, replacing the existing worn column pipe,
replacing worn or damaged line shaft sections, couplings, and line shaft retainers,
rewinding of the electric motor, and replacing the worn pump bowl assembly. Following
re-assembly and installation of the well equipment, the well was disinfected and water
quality samples were taken, tested, and approved, in accordance with California
Department of Public Health requirements.
All terms and conditions of this contract have been complied with and the work has
been performed to the satisfaction of the Project Manager. General Pump Company
completed the work as defined in the project plans and specifications in an efficient and
timely manner.
FISCAL IMPACT
Funds in the amount of $225,000 have been budgeted in the Fiscal Year 2016-17
Capital Improvement Plan for this project. The original contract estimate for all work
was $161,760. Once the well was pulled, a more defined project cost was determined.
The total cost for this project is $128,245.89. This amount reflects the original contract
amount of $161,760 minus quantity changes totaling $33,514.11, or 20.72% less than
the original contract amount. The remaining funds will go back to the Water Fund
balance.
RECOMMENDATION
It is recommended that the City Council accept all work performed by General Pump
Company for Inspection and Rehabilitation of the Peck Well Project as complete, and
Accept Inspection and Rehabilitation of Peck Well Project
July 18, 2017
Page 3 of 3
authorize the final payment to be made in accordance with the contract documents,
subject to the retention of $6,412.29.