HomeMy WebLinkAbout23B - RECYCLED WATER CONVERSION
REQUEST FOR
COUNCIL ACTION
CITY COUNCIL MEETING DATE: CLERK OF COUNCIL USE ONLY:
NOVEMBER 15, 2010
TITLE: APPROVED
INCREASED CONTINGENCY FOR ? As Recommended
RECYCLED WATER CONVERSION ? As Amended
PROJECT PROJECT NO. 093215 El Ordinance on 1s` Reading
( ) ? Ordinance on 2"d Reading
? Implementing Resolution
? Set Public Hearing For
CONTINUED TO
12
FILE NUMBER
CITY MANAGER
RECOMMENDED ACTION
Increase the contingency for the contract with Guerrero Backhoe Service, Inc. for the Recycled
Water Conversion Project by $100,000 to a total estimated contract amount of $324,526 and
authorize the City Manager to execute change orders up to the contingency amount.
DISCUSSION
On December 7, 2009, the City Council awarded a contract for the Recycled Water Conversion
Project to Guerrero Backhoe Service, Inc. in the estimated amount of $195,240 plus a
contingency of $29,286 totaling $224,526. 526. Unforeseen field conditions
9 $ not shown in the contract
at Centennial Park have prompted additional work to complete the Water Conversion Project.
The existing water supply system at Centennial Park continuously loops throughout the entire
park with connections to Godinez High School, the lake, and the soccer fields. Water is
provided for daily use in the school and the park, as well as irrigation water for the landscaped
areas. To convert the irrigation system from potable water to recycled water, the existing water
pipes and apparatus will need to be disconnected and regrouped into two separate systems:
potable water for domestic use and recycled water for landscaping.
After construction started, it was discovered that the underground piping system was
significantly different from what was shown on the plans, which were prepared based on old as-
built records. To rectify the situation, exploratory excavations have been performed at several
connection points to determine the actual layout of pipes, and plans have been revised based on
the result of the investigation. The revisions require additional pipes and equipment to provide
separate domestic water and recycled water for each area, and to provide temporary water to
the school and the park until the conversion is completed.
23B-1
Increased Contingency for
Recycled Water Conversion Project
November 15, 2010
Page 2
About $70,000 in additional work has been identified and negotiated. However, staff
recommends the contingency be increased by $100,000 due to the unforeseen conditions that
are normally associated with installation of underground utilities.
ENVIRONMENTAL IMPACT
This is no environmental impact associated with this action.
FISCAL IMPACT
The contingency increase is estimated at $100,000. Funds are available in the Water Utility
Capital Projects Fund (accounting unit 06617647-66301).
APPROVED AS TO FUNDS AND ACCOUNTS:
Raul Godinez II Francisco Gutierrez
Executive Director Executive Director
Public Works Agency Finance & Management Services Agency
RG/DI
23B-2