City Council Agenda
Memo to:
Manteca City Council
From:
Michael Selling, Assistant Director of Engineering/City Engineer
Prepared by:
Elizabeth Cha, Assistant Engineer;
Somporn Boonsalat, Deputy Director of Engineering
Date:
June 16, 2026
Subject:
Agreements for Services for On-Call Materials Testing Services
Recommendation:
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Adopt a resolution approving Agreements for Services with Aftershock Geotechnical, Blackburn Consulting, BSK Associates, Geocon Consultants, Kleinfelder, and Terracon Consultants to provide On-Call Materials Testing Services for a term of three years for a not-to-exceed amount of $300,000 each and authorizing term extensions up to two years for an additional $200,000 each for a total not-to-exceed amount of $500,000 each; and authorizing the City Manager or designee to take all appropriate actions necessary to carry out the purpose and intent of the resolution.
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Background:
The City of Manteca ("City") Engineering Department routinely requires professional materials testing services associated with its management of development and capital improvement projects.
On March 11, 2026, the City issued a Request for Proposals ("RFP") for On-Call Materials Testing Services. The deadline to submit questions and/or inquiries was on March 26, 2026 and responses to questions/inquiries were published on the City's website on March 30, 2026.
On April 2, 2026, the City received proposals from the following Vendors:
* Achievement Engineering Corporation
* Aftershock Geotechnical
* Blackburn Consulting
* BSK Associates
* Construction Testing Services, Incorporated
* Crawford & Associates, Incorporated
* Geocon Consultants, Incorporated
* Kleinfelder Incorporated
* MatriScope Engineering Laboratories, Incorporated
* SALEM Engineering Group, Incorporated
* Terracon Consultants, Incorporated
The City established an evaluation committee consisting of three (3) panel members to review received proposals based on the advertised crit...
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