REPORT/RECOMMENDATION TO THE BOARD OF SUPERVISORS
OF SAN BERNARDINO COUNTY FLOOD CONTROL DISTRICT
AND RECORD OF ACTION
May 5, 2026
FROM
NOEL CASTILLO, Chief Flood Control Engineer, Flood Control District
SUBJECT
Title
Construction Contract for the Grove Basin Outlet Storm Drain Project in the City of Ontario
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RECOMMENDATION(S)
Recommendation
Acting as the governing body of the San Bernardino County Flood Control District:
1. Approve Addendum No. 1, issued on March 9, 2026, and Addendum No. 2, issued on March 12, 2026, to the bid documents for the Grove Basin Outlet Drain Project in the City of Ontario.
2. Consent to the withdrawal of bid by WEKA, Inc., due to a material written error in its bid, as allowed under Public Contract Code sections 5101 and 5103.
3. Award Construction Contract to Mamco, Inc. dba Alabbasi, in the amount of $12,777,777 for the Grove Basin Outlet Storm Drain Project in the City of Ontario.
4. Authorize a contingency fund of $1,277,777 for the Grove Basin Outlet Storm Drain Project in the City of Ontario.
5. Authorize the Chief Flood Control Engineer of the San Bernardino County Flood Control District to approve the expenditure of the contingency fund of $1,277,777 for verified quantity overruns for this unit priced construction contract.
6. Authorize the Chief Flood Control Engineer of the San Bernardino County Flood Control District to order any necessary changes or additions in the work being performed under the contract for a total amount not to exceed $150,000 of the $1,277,777 contingency fund, pursuant to Public Contract Code section 21061(d).
7. Authorize the Chief Flood Control Engineer of the San Bernardino County Flood Control District to accept the work when 100% complete and execute and file the Notice of Completion.
(Presenter: Noel Castillo, Chief Flood Control Engineer, 387-7906)
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