HomeMy WebLinkAboutAgenda Report - January 4, 2023 C-06CITY OF AGENDA ITEM
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CALIFORNIA
COUNCIL COMMUNICATION
AGENDA TITLE: Accept Improvements Under Contract for 2020 Well Rehabilitation Project
MEETING DATE: January 4, 2023
PREPARED BY: Public Works Director
RECOMMENDED ACTION: Accept Improvements Under Contract for 2020 Well Rehabilitation Project.
BACKGROUND INFORMATION: The project's original scope of work consisted of rehabilitating wells 11 R,
22, and a water supply well that serves the San Joaquin Vector Control
Facility (mosquito well) at the White Slough Water Pollution Control
Facility. The work at Well 11 R and the mosquito well were completed, but due to unforeseen circumstances,
work at Wells 3R, 24, and 28 were added to the contract through change orders executed under the City
Manager's authority. Well 22 was removed from the scope of work and is planned for the next well
rehabilitation project.
The January 6, 2021, the contract was awarded to Zim Industries, Inc., of Fresno, in the amount of $374,800
and authorized $37,480 of change order authority. On February 16, 2022, City Council authorized $250,000 of
additional change order authority (for a total of $287,480) to facilitate the repair of Well No. 24 which was
discovered to have a compromised well casing.
The final contract price was $651,808 with eight change orders that totaled $277,008. A summary of the
change orders are below. Change Order No. 7 was substantial due to the Well No. 24 repairs that included the
installation of 480 lineal feet of 14 -inch diameter stainless steel casing and the associated work to bring the
well online. All work was completed in substantial conformance with the plans and specifications approved by
City Council.
CO 1: Cleaning and associated activities at Well 3R
$
15,900.00
CO 2: Video Inspections at three White Slough monitoring wells
$
3,300.00
CO 3: Additional days to the contract
$
-
CO 4: Cleaning and investigation at Well 24
$
14,785.00
CO 5: Removal of all work associated with Well 22 and add work for Well 24
$
(63,447.00)
CO 6: Pull and reinstall pump and materials at Well 28
$
25,929.00
CO 7: Rehabilitation of Well 24 which includes installing new 14" column
$
256,592.00
CO 8: Video inspection of Well 24
$
2,400.00
CO 9: Repairs made at Wells 24 and 11 R
$
21.679.00
Cumulative Change Order Amount: $ 277,008.00
Following acceptance by the City Council, as required by law, the City Engineer will file a Notice of Completion
with the County Recorder's office. The notice serves to notify vendors and subcontractors that the project is
complete and begins their 30 -day period to file a stop notice requiring the City to withhold payments from the
prime contractor in the event of a payment dispute.
APPROVED: lJMAt"r
Stephen Schwabauer, City Manager
\\CVCFILV02\PubWks$\WP\PROJECTS\WATER\2020 Well Rehabilitation Project\CAccept doc 12/21/2022
Accept Improvements Under Contract for 2020 Well Rehabilitation Project
January 4, 2023
Page 2
FISCAL IMPACT: Staff anticipates these improvements will increase water production reliability
while decreasing water system maintenance costs.
FUNDING AVAILABLE: This project was funded by Water and Wastewater Capital Funds,
CQW�j
Charles E. imley, Jr.
Public Works Director
Prepared by Alice Bernardino, Associate Civil Engineer
CES/AB/cd
Attachment
\\CVCFILV02\PubWks$\WP\PROJECTS\WATER\2020 Well Rehabilitation Project\CAccept.doc 12/21/2022