Agenda

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C. 7

To:	Board of Supervisors
From:	Brian M. Balbas, Public Works Director/Chief Engineer
Date:	February 26, 2019

Contra

Costa

County

Subject:

Contract Amendment No. 1 with Hultgren-Tillis, Countywide.

APPROVE	OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR	RECOMMENDATION OF BOARD COMMITTEE

Action of Board On: 02/26/2019

APPROVED AS RECOMMENDED

OTHER

Clerks Notes:

VOTE OF SUPERVISORS

AYE:

John Gioia, District I Supervisor
Candace Andersen, District II Supervisor
Karen Mitchoff, District IV Supervisor
Federal D. Glover, District V Supervisor

ABSENT:

Diane Burgis, District III Supervisor

Contact:

Kevin Emigh, 925-313-2233

I hereby certify that this is a true and correct copy of an action taken and entered on the minutes of the Board of Supervisors on the date shown.
ATTESTED: February 26, 2019
David Twa,

BY:	, Deputy

RECOMMENDATION(S):

APPROVE and AUTHORIZE the Public Works Director, or designee, to execute a contract amendment with Hultgren-Tillis Engineers (Hultgren-Tillis), effective March 2, 2019, to extend the term from March 1, 2019 to December 31, 2019, for on-call geotechnical engineering services, with no increase to the original payment limit of $250,000, Countywide. (County Project Nos. 7527-6D8740 and 7520-6B8348) (All Districts)

FISCAL IMPACT:

Work performed under this amendment is funded by 100% Local Road and Flood Control 3B Funds.

BACKGROUND:

The Public Works Department is involved in various projects in the County which require geotechnical engineering consulting services for road, flood control, and airport projects. After a solicitation process in 2016, this firm and four other firms were selected to provide geotechnical engineering services on an “on-call” basis. On March 1, 2016, a consulting service agreement with Hultgren-Tillis was approved by the Board of Supervisors.

Since the original consulting service agreement was executed, the Consultant provided on-call geotechnical engineering services on multiple projects. While most of these projects have been completed, the San Pablo and Wildcat Creeks Levee Certification and Grayson and Walnut Creeks Levee Rehabilitation at Central Contra Costa Sanitary District Treatment Plant Projects in San Pablo, Martinez and Walnut Creek are on-going and require Consultant’s engineering services beyond the Agreement’s March 1, 2019 expiration. In order to allow these projects to continue without disruption, the contract is being extended solely for the completion of these projects.

Proposed Amendment No. 1 will extend the contract termination date from March 1, 2019, to December 31, 2019, with no increase to the original payment limit of $250,000.

Approval of Amendment No. 1 for this Consulting Services Agreement will allow the Consultant to continue to provide geotechnical engineering services for the San Pablo and Wildcat Creeks Levee Certification and Grayson and Walnut Creeks Levee Rehabilitation at Contra Costa County Sanitary District Treatment Plant Projects through December 31, 2019.

CONSEQUENCE OF NEGATIVE ACTION:

If the contract amendment is not approved, the San Pablo and Wildcat Creeks Levee Certification and Grayson and Walnut Creeks Levee Rehabilitation at Central Contra Costa Sanitary District Treatment Plant Projects will experience delays and added costs as the County solicits for new professional services which will duplicate previous work.