HomeMy WebLinkAbout11 Consideration for Approval of Airport Well Maintenance Change Order
AGENDA ITEM____11____
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MEETING DATE: November 4, 2020
FROM: Brian Wright, Assistant General Manager/Water Utility
Director
SUBJECT: Consideration for Approval of Airport Well Maintenance
Change Order
APPROVED BY_______________________________
RECOMMENDATION:
Authorize the General Manager to execute a change order for the 2020 Airport Well
Maintenance Contract with Well Industries, Inc. in the amount of $24,694.32, for a revised
total contract amount not to exceed $79,194.20 plus tax.
DISCUSSION:
Airport Well is one of the District’s most productive potable groundwater wells and an
essential water source during the summer demand cycle. Historically, the well, pump,
motor and line shaft require periodic inspection, maintenance and repair. The
maintenance and repair typically includes shop inspection of pump and motor assemblies,
inspection and/or replacement of pump line shaft, bearings and couplings as needed.
Historically the District has also used these maintenance cycles as an opportunity to
conduct video and axial alignment surveys.
The District publicly advertised a request for bids for the 2020 Airport Well Maintenance
Project in June, 2020. A public bid opening was held on July 7, 2020 at which time four
responsive bids were received. Well Industries, Inc. was determined to be the lowest
responsive bidder. At the July 15, 2020 meeting the Board approved a construction
services contract for the 2020 Airport Well Maintenance Project with Well Industries, Inc.
for a total not to exceed amount of $60,000.
Well Industries, Inc. began the Airport Well Maintenance Project on September 21 st.
Following the disassembly and inspection of the pump assembly, significant signs of wear
and deformation beyond standard tolerances were discovered along the pump bowl
assembly impellers. After further consultation with the contractor, it was determined the
degree of wear is beyond acceptable tolerances for repair and that the procurement of a
new assembly would be the most beneficial remedy.
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Well Industries, Inc. has submitted to the District a quote for the procurement and
installation of a new 10” Flowserve turbine bowl assembly, tapered suction assembly and
replacement sounding tube materials for a total amount of $24,694.32. This amount
exceeds the Board approved contract authorization and will require Board change order
approval.
This project is being conducted in support of the following District objectives and goals:
1.05.020 Objectives:
3. Provide reliable and high quality water supply and distribution system to meet current
and future needs.
1.05.030 Goals:
3.4 Conduct effective and efficient operations, maintenance and replacement programs.
FISCAL IMPACT:
The original 2020 Airport Well Maintenance Contract was awarded to Well Industries, Inc.
for $54,500. Plus a 10% change order contingency, with a total not to exceed contract
amount of $60,000.
The submitted change order request for the replacement of the existing pump bowl
assembly includes an additional procurement amount of $24,694.20, and a new total
contract amount not to exceed $79,194.20 plus tax.
Sufficient funds exist in the Board approved FY20 Water Operations Budget, which
included $101,100 for well maintenance projects in 2020.