HomeMy WebLinkAboutAgenda Report - February 19, 2020 C-03AGENDA ITEM COM3
CITY OF LODI
COUNCIL COMMUNICATION
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AGENDA TITLE: Approve Plans and Specifications and Authorize Advertisement for Well 27
Granular Activated Carbon Filter System
MEETING DATE: February 19, 2020
PREPARED BY: Public Works Director
RECOMMENDED ACTION: Approve plans and specifications and authorize advertisement for
bids for Well 27 Granular Activated Carbon Filter System.
BACKGROUND INFORMATION: In 2018, after the January sample for Well 27 indicated the
presence of the regulated chemical known as 1,2,3,-
trichloropropane (1,2,3 -TCP) the well was taken out of service. This
project is needed for the well to meet State drinking water standards and return to service.
For decades, Granular Activated Carbon (GAC) has been utilized at several well sites within the City to
adsorb dibromochloropropane (DBCP). The State Water Resources Control Board has identified GAC
as a best available technology for removing 1,2,3 -TCP contamination from drinking water.
This project consists of furnishing and installing a GAC treatment system for Well 27, located at 2160
West Century Boulevard (intersection of Heavenly Way and West Century Boulevard), as shown on
Exhibit A. The work for this includes furnishing and installing a GAC filter system, complete with four low
profile tanks, carbon media, concrete pad, and all required on-site piping and valving, including
approximately 200 linear feet of 10 -inch water pipe, 100 linear feet of eight -inch water pipe and 60 linear
feet of eight -inch wastewater pipe, and other incidental and related work.
This site has always been anticipated to need a GAC treatment system. As a courtesy, staff recently
sent a letter to neighboring home owners advising of the site impacts associated with the proposed
project. A rendering was also provided reflecting the low profile vessels and proposed landscaping.
The specifications are on file in the Public Works Department. The planned bid opening date is February
26, 2020. The project estimate is $1,500,000.
FISCAL IMPACT: Annual operation and maintenance costs for the water utility will increase as
a result of Well 27 being placed back into service and the addition of the
GAC treatment system.
FUNDING AVAILABLE: Funding will be identified at project award.
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Charles E- Swimley, r.
Public Works Director
Prepared by Jimi Billigmeier, Associate Civil Engineer
CES/JB/tc
Attachment
cc: Andrew Richle, utilities Superintendent
Travis Kahrs, Water Plant Superintendent
APPROVED:
tephen Sdhwa6auer, City Manager
K:\WP\PROJECTS\WATER\Well27\Well 27 Granular Activated Carbon (GAC) Filter System\CPSA doc
2/10/2020
0 CITY OF LODI
PUBLIC WORKS DEPARTMENT
CENTURY BOULEVARD
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EX. DEBENEDETTI
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PUMP STATION SITE
EXHIBIT A
WELL 27 GRANULAR ACTIVATED
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CENTURY BLVD. & HEAVENLY WAY
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EX. SITE FOR,
WELL 27
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