HomeMy WebLinkAboutAgenda Report - March 2, 2016 C-04CITY OF LODI
COUNCIL COMMUNICATION
AGENDA ITEM
C-4
TM
AGENDA TITLE: Approve Specifications and Authorize Advertisement for Bids for Well 23 Granular
Activated Carbon Replacement Project
MEETING DATE: March 2, 2016
PREPARED BY: Interim Public Works Director
RECOMMENDED ACTION. Approve specifications and authorize advertisement for bids for Well
23 Granular Activated Carbon Replacement Project.
BACKGROUND INFORMATION: Granular activated carbon (GAC) is utilized at certain City well sites
to adsorb dibromochloropropane (DBCP) contaminates in the
drinking water. Over time, the carbon loses its adsorptive capacity
and must be replaced. While replacement intervals vary depending upon the concentration of DBCP and
well run times, staff anticipates one of the seven GAC facilities serving the water system to need carbon
replacement each year. Well 23 is currently providing safe drinking water that meets all State and federal
drinking water requirements. However, recent test results indicate the GAC in the treatment system has
lost its adsorptive capacity and is in need of treatment.
Well No. 23 is located at 55 East Harney Lane. The GAC treatment system at this location has been in
service since 1998. The well site contains two vessels with 30,000 pounds of GAC each. The total
amount of GAC to be replaced is 60,000 pounds.
The specifications are on file in the Public Works Department. The project estimate is $160,000 and the
planned bid opening date is March 30, 2016.
FISCAL IMPACT:
The funds for this project will be coming from the Water Utility Fund's DBCP
Operations and Maintenance account which is funded, in part, under the
terms of the DBCP settlement.
FUNDING AVAILABLE: Funding will be identified at project award.
Prepared by Lyman Chang, Interim City Engineer
CES/LC/jr
cc: Utilities Manager
Charles E. Swimley, Jr.
Interim Public Works Director
APPROVED:
e • en Schwab uer, City Manager
K:\WP\PROJECTS\WATER\Well 23\GAC\CPSA.doc 2/23/2016