AgdaPkt 2009-10-12 - Laserfiche WebLink

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6.1 D Page 1 REPORT To the Honorable Mayor and City Council From the Ci Mana er October 12, 2009 SUBJECT Award of Contract— Redwood Shores Lagoon Maintenance Dredging Project REC�MMENDATION � By motion: 1. Approve the contract documents 2. Award the contract for the Redwood Shores Lagoon Maintenance Dredging Project to Aquatic Environments of Concord based on the lowest �otal responsible bid amount 3. Authorize the City Manager to execute the contract for the base bid amount of $712,700.00 and inc�ease the contract amount up to 1�% if necessary. BACKGROUND The Redwood Shores Lagoon System Dredging project is designed to impro�e the water quality and the serviceability of the Redwood Shores storm drainage system which includes the lagoons. The lagoons in Redwood Shores have not been dredged since they were first created and silt depos�#s have accumulated for over forty years from storm run off and the bay's tidal action. Silt bui(d-up adversely effects water circulation which encourages the growth of widgeon weed. Removal of as much of the deposited silt as possible, particularly near the in-take area, will improve the water circulation. Dredging is planned in certain areas of the lagoon where hydrographic sunreys ha�e identified excessive silt build-up and where the dredged material has been approved for relocation within Redwood Shores. Much of the dredged material from this project will be incorporated into "The Preserves" project to restore the wetlands in Area H. The opportunity for beneficial reuse of dredged material results in a substantial cost savings to the cifiy and accelerates the restoration of the wetlands by the developer. The three (3) bids received at bid opening on September 1�, 2�09, are summarized below: BASE BID OPTIONAL BID BIDDER AMOUNT ITEMS AMOUNT T�TAL Clean Harbors Environmental Services, Inc.— $1,105,294.00 $985,359.25 �2,090,573.25 Norwell, MA A uatic Environments-Concord 712,700.00 1,473,064.00 2,185,1fi4.00 Waterworks lndustries, lnc. -Windsor 83fi,941.60 1,822,287.74 2,659.229.34 En ineer's Estimate $889,030.00 $1,022,680.00 $1,911,710.0� Recommended Bidder. Aquatic Environments of Concord, CA Subs ntiation: Aquatic Environments of Concord, CA is the lowest responsive and responsible bidder.