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CITY COUNCIL AGENDA ITEM NO. 19

Meeting Date: December 13, 2005

Subject/Title: Adopt a Resolution to reject the bid received for the Chloramination of Wells, CIP Project No. 562-5617 and authorize staff to re-advertise the project for bid and return to City Council for award of the contract.

Prepared by: Engineering: P. Eldredge

Submitted by: Engineering: B. Grewal

RECOMMENDATION
Adopt a Resolution to reject the bid received for the Chloramination of Wells, CIP Project No. 562-5617 and authorize staff to re-advertise the project for bid and return to City Council for award of the contract.

PREVIOUS ACTION
On January 11, 2005, by Resolution No. 2005-6, the City Council authorized the City Manager to execute a Professional Services Agreement with Raines, Melton & Carella, Inc., to provide Design Services for the Chloramination of Wells, CIP Project No. 562-5617.

On April 26, 2005, by Resolution No. 2005-94, City Council authorized the termination of the contract with Raines, Melton & Carella, Inc. for Design Services for the Chloramination of Wells, CIP Project No. 562-5617, and authorized the City Manager to execute a Contract with Camp Dresser and McKee, Inc. to provide Design Services for the Chloramination of Wells project.

On May 24, 2005, by Resolution No. 2005-115, City Council adopted the City’s 2005/06 – 2009/10 Capital Improvement Program that included the Chloramination of Wells, CIP Project No. 562-5617.

BACKGROUND
The City has been working on securing a long term treatment option for its surface water supply obtained from the East Contra Costa Irrigation District (ECCID). The City has entered into an agreement with the Contra Costa Water District (CCWD) to provide interim treatment services of this water and has since purchased existing capacity at the Randall-Bold Water Treatment Plant (RBWTP) and is in the process of designing a new treatment facility adjacent to RBWTP in partnership with CCWD.

The City currently uses chlorine as its potable water disinfectant for the groundwater pumped from the City’s wells. As groundwater is low in naturally occurring organic matter, chlorine is a suitable choice; however, surface water such as that taken from the Delta (Brentwood’s ECCID supply) is generally higher in organic material. Most of the organic material is removed during the treatment process; however, a very small amount could remain. These organics, when mixed with chlorine, have the potential to form a compound known as Trihalomethanes or THM’s, which are a carcinogenic to humans. Thus, chloramamines are used instead of chlorine since they do not form THM’s. Chloramamines are produced by mixing a small amount of ammonia with the chlorine. The City has been utilizing this surface water supply for several years now; however, the volume of water used has made it more cost effective to remove the ammonia from the surface water supply before it is mixed with Brentwood’s well water through a process known as “break point chlorination.” As the City continues to grow this process will no longer be cost effective for the City; therefore, the City’s groundwater supply needs to be converted to chloramamines.

The City advertised the project for construction beginning Friday, October 28, 2005 and bids were opened on Tuesday, November 29, 2005. A total of one (1) bid was received from Aztec Constructors, Inc. for the amount of $1,676,600, which exceeds the projects construction budget of $742,000. Staff recommends rejecting the one bid and re-advertising the project. Staff will review the existing scope of work to see if there is any ability to revise the overall scope of the project and therefore possibly reduce the cost.

FISCAL IMPACT
The Fiscal Year (FY) 04/05 budget contains funds for construction of the Chloramination of Wells, CIP Project No. 562-5617, in the amount of $742,000. Staff will analyze the scope of work to see if there is any possibility to revise the scope of the project so the project is within the budgeted amount. Should it be determined that the scope of work cannot be revised or if there is little value obtained from any potential revisions, staff will amend the project budget accordingly and bring it before the City Council for consideration.

Attachments:
Resolution
Site Map

RESOLUTION NO.

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF BRENTWOOD TO REJECT THE BID RECEIVED FOR THE CHLORAMINATION OF WELLS, CIP PROJECT NO. 562-5617 AND AUTHORIZE STAFF TO RE-ADVERTISE THE PROJECT FOR BID AND RETURN TO CITY COUNCIL FOR AWARD OF THE CONTRACT.


WHEREAS, on May 24, 2005, by Resolution No. 2005-115, City Council adopted the City’s 2005/06 – 2009/10 Capital Improvement Program that included the Chloramination of Wells, CIP Project No. 562-5617; and

WHEREAS, the City currently uses chlorine as its potable water disinfectant for the groundwater pumped from the City’s wells; and

WHEREAS, the City has been utilizing this surface water supply for several years now; however, the volume of water used has made it more cost effective to remove the ammonia from the surface water supply before it is mixed with Brentwood’s well water through a process known as “break point chlorination.”

WHEREAS, as the City continues to grow this process will no longer be cost effective for the City; therefore, the City’s groundwater supply needs to be converted to chloramamines; and

WHEREAS, the City advertised the project for construction beginning Friday, October 28, 2005 and bids were opened on Tuesday, November 29, 2005; and

WHEREAS, a total of one (1) bid was received from Aztec Constructors, Inc. for the amount of $1,676,600, which exceeds the project budget amount; and

WHEREAS, the Contract Documents provide for the rejection of all bids at the discretion of the City Council.

NOW, THEREFORE BE IT RESOLVED that the City Council of the City of Brentwood does hereby reject the bid received for the Chloramination of Wells, CIP Project No. 562-5617 and authorize staff to re-advertise the project for bid and return to City Council for award of the contract.

PASSED, APPROVED AND ADOPTED by the City Council of the City of Brentwood at a regular meeting held on the 13th day of December 2005 by the following vote:
 

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