1990 AGN DEC 18 I06 - Laserfiche WebLink

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� 0 r_ .�, `� KRIEGEI� INCORPORATED • ENGINEERING CONSULTANTS WA nr�1 3602 University Av • Riverside, CA 92501 • Tel 714-684-6900 • Fax 714-369-5026 L1K1 December 7, 1990 John C. Hutton, Director of Public Works City of Colton 650 North La Cadena Drive Colton, California 92324 Subject: 18" Rancho Avenue Replacement Sewer and Lake Cadena Lift Station Remediation Recommendation of Award Dear John: 312-29.3 On December 4, 1990, the City received nine bids for subject project (see attached bid summary). M. Grbavac Construction Co. was Schedule I low bidder and Albert W. Davies, Inc. was Schedule II low bidder. Schedule I (18" Rancho Avenue Sewer) bids ranged from a low of $224,146 to a high of $519,373.20, and Schedule II (Lake Cadena Lift Station) bids ranged from a low of $328,800 to a high of $721,162. The sum of the low bids for both schedules is $552,946 (versus the sum of the lowest combined Schedule I and II bid by a single contractor at $581,000). The engineer's estimate for subject project was $480,000. Each of the low bidders' documents contained discrepancies, however, none appear to be significant. A check of the low bidders' references indicates that each bidder has satisfar_torily completed similar projects for other agencies. The noted minor discrepancies are summarized below: �. c1. viLava�.; Cons truc tiuci Co .� Si:'i�a�iuie i i Bidding Documents were removed from the bound volume. Bidder corrected errors on Bid Schedule I by using "liquid paper" and these corrections were not initialed by the bidder. Bidder listed only one subbidder in the Bid'Documents. After the bid opening, bidder requested the addition of another subbidder (subcontLactor) to construct a portion of the work. Bidder did not list a supglier for Class II base. 2. Albert W. Davies, Inc. (Schedule II�. Bidder did not list any suUbidders in the B.Ld DOr_I1[IIZIttS. After the bid openir.g, bidder requested the adc9ir.ioa of six subbidders ta