HomeMy WebLinkAbout10 Fiber Board and Martis Valley Well AGENDA ITEM #10
Public Utility District m
MEETING DATE: November 1, 2023
TO: Board of Directors
FROM: Chad Reed, Water Utility Director
SUBJECT: Consideration of a Contract Amendment for the FiberBoard and
Martis Valley Well Rehabilitation Project
APPROVED BY:
Brian C. Wright, General Manager
RECOMMENDATION:
Authorize the General Manager to execute a contract amendment with Carson Pump
LLC. in the amount of $1,846.00 to the Fibreboard and Martis Valley Well rehabilitation
project for a new not to exceed amount of $213,475.
BACKGROUND:
The Truckee Donner Public Utility District water system is fed by 11 active groundwater
wells, all of which receive regularly scheduled maintenance and inspection at a
prescribed interval. Staff identified Fiberboard and Martis Valley wells to be scheduled
for maintenance and inspection in FY2023.
When regular maintenance is performed, the life expectancy of the asset is extended,
and documentation on the asset can be validated to ensure appropriate maintenance
schedules are derived. This maintenance and inspection also help ensure that
Fibreboard and Martis Valley Wells continue to have both adequate water flows and
water quality.
The District has developed a water utility 10-year capital improvement plan (CIP) which
outlines the maintenance and improvement needs associated with the District's
groundwater well facilities to ensure the long-term reliability of critical water pumping
resources.
The District's scope of work for well rehabilitation is generally broken into five parts:
• Mobilization
• Removal of the well pump and motor assembly
• Inspection/recommendation (Proposed Maintenance of well, pump, and motor
assembly)
• Installation of the pump
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• Demobilization.
Request for Bid documents for the rehabilitation of Fibreboard and Martis Valley Wells
were completed in April 2022. A bid opening was held on May 05, 2022. One bid was
received. At the regular Board of Director Meeting held on May 18, 2022, the board
authorized the General Manager to proceed with the well rehabilitation project. The
contract was awarded to Carson Pump LLC of Carson City, Nevada, and fully executed
on May 20, 2022, for a total authorization not to exceed the amount of$211,629. This
was comprised of the original contract amount of$192,390.00 plus a 10% change order
allowance.
ANALYSIS AND BODY:
The scope of the work for the well rehabilitation project includes
"inspection/recommendation". In most cases, the totality of this scope is unknown prior
to the removal of the well, motor, column/shaft, and pump. After the removal and
inspection of Fibreboard and Martis Valley Well, Carson Pump LLC recommended the
following:
Fibreboard Well Recommendations:
• Brushing/Bailing
• Redevelopment
• 20 new couplings
• 90 stainless steel line shaft couplings
• 86 rubber retainer bearings
• 12 new bowl bearings
• 40 hours of shop labor to inspect the line shaft
Rehabilitation not to exceed $53,784
Martis Valley Recommendations:
• Brushing/Bailing
• Redevelopment
• 12 new column couplings
• 12 new bearing retainers
• 18 rubber retainer bearings
• 300' stainless steel line shaft and couplings
• 6 hours of shop labor to inspect the line shaft
• New Goulds Pump (Difference versus rebuilding the old $15,700)
Rehabilitation not to exceed $90,380
Most of the previously mentioned items from scope three of the proposal were included
in the original proposal. However, the cost of the pump was not included. The purchase
of a new water pump for Martis Valley well exceeded the 10% contingency of $19,239.
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However, other cost savings were able to be realized, so staff had forecasted the
project to stay under the allocated monies. Staff recommended replacing and not
rebuilding the pump in the Martis Valley Well, due to the minimal cost difference and
effort required to access the pump. The estimated cost of rebuilding the pump was
$12,900, and the original casing and bowls would have been reused. Whereas a new
pump with all new components costs $28,600. During the development of the Martis
Valley Well, more contractor-provided well development time was needed than was
originally anticipated to achieve the desired production goal with the new pump. These
additional hours and the new pump resulted in a $1,846.00 overrun of both the
contingency and original proposal allowed monies. Staff was recently notified of this
overrun in expenses and is bringing the additional contract authorization of $1,846.00 to
the Board for consideration.
GOALS AND OBJECTIVES:
District Code 1 .05.020 Objectives:
1. Responsibly serve the public.
3. Provide reliable and high quality water supply and distribution system to meet
current and future needs.
6. Manage the District in an effective, efficient and fiscally responsible manner.
District Code 1 .05.030 Goals:
1. Manage for Financial Stability and Resiliency
4. Take the best of private sector thinking to modernize the utility and add value to our
communities.
FISCAL IMPACT:
The additional cost from Carson Pump LLC for additional development time on
Fibreboard and Martis Valley wells was $1,846.
There are sufficient funds in the current operating general fund ($10.4M) for this
increased rate-funded capital expenditure .
ATTACHMENTS:
None
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