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The existing 6-inch portion of the sewer main within W. Angela Street will be replaced with 175 feet of 8-inch pipe. An existing lateral will be realigned into an existing manhole as part of this project work. The three manholes at the intersection of California Avenue and Washington Streets will be reconstructed with inverts removed and replaced to allow better flows. All sewer pipes existing on Arendt Way between First and Second Streets will be replaced. This will require the removal and placement of 269 feet of 10-inch pipe and the reconnection of existing laterals. Work at Bernal Avenue requires placing 305 feet of 18-inch sewer main from an existing manhole near Cubby's Dog Park to an existing manhole on W. Lagoon Road. Existing pipes and structures that are no longer required will be removed. Transferring the Rose Avenue sewer collection from the current eastward flow to the in- place westward flowing facilities requires the removal of temporary pipes, plugs, and inverts; the installation of new wyes — pipe fittings that split a single pipe into two — to update the system to current City standards; and the abandonment in place of the no longer required eastward flowing system. This project will also reduce pumping costs. Bids Sealed bids for this project were received on September 6, 2023. Seven bids were received, ranging from the low bid amount of$544,000 to the high bid of $989,726. The low bid amount, submitted by Golden State Construction & Utility, Inc. is approximately 27 percent lower than the Engineer's Estimate of $750,000 (see Attachment 2 for bid summary). Staff reviewed bids and found the low bid is responsive and responsible. Past work performed by the low bidder was verified to be satisfactory. Staff recommends awarding the construction contract to Golden Bay Construction & Utility, Inc. Consultant/Specialty Services Work at the Bernal Avenue/W. Lagoon and Regency Avenue/Meadowlark Park sites are within areas with potential cultural resources. An archival records search in conjunction with on-site cultural resource awareness training of workers and cultural resource monitoring of construction activities is consistent with past practices for projects adjacent to these areas. The cost of these archaeological services is estimated to be $16,800. Consulting testing services will be provided under the City's existing on-call materials testing contracts. These services include required testing of the materials used for backfill and compaction of the trench backfill associated with the pipeline installation. The material testing services are estimated to cost $25,000. Budget This project is funded as part of the FY 2023/24 Annual Sewer Collection System Improvements Project, CIP No. 24278, with a programmed amount of $1.5 million. The Page 4 of 5