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received from Ranger Pipelines Inc. of San Francisco, California. This is approximately 6% below the engineer's estimate for the base bid items. The additive bid item received from Ranger Pipeline was $45,000, the lowest additive bid item received. All bid documents received from Ranger Pipelines Inc. were found to be in order and past work performed by this contractor was verified to be satisfactory. Staff is recommending award of the construction contract to the lowest responsible bidder, Ranger Pipelines Inc. Consultant Services City staff will be responsible for all construction management, schedule and cost control, inspection, and will be the direct interface with residents and businesses affected by the project. However, staff is recommending the use of consultant support services during construction. Below are brief descriptions of the services needed, the staff recommendation on who or what firm to hire to provide those service, and the not-to- exceed estimated cost of those services: • A resident field engineer will be on-site and working directly with the contractor throughout the construction. The resident engineer will be the first point of contact for the contractor regarding interpretation of the plans and specifications. The resident engineer will work with the contractor to review utility potholing data and lay-out the alignment of the new pipeline prior to excavation. This will include working with the contractor to ensure that material and fittings are on hand to avoid conflicting utilities in order to limit the amount of time excavations must stay open. If issues or conflicts with existing utilities are discovered that require modification of the plans, this field engineer will be able to make sure these items are addressed promptly before excavation to avoid costly delays. • Staff recommends Bill Carlson from Carlson Management, Inc. to perform these services. Bill has worked with the City on many projects in the past, most recently the 1-580 and Foothill Interchange Improvement project and the 1-680 and Bernal Interchange Improvement project. Bill has proven to be trustworthy, detail oriented, very easy to work with, and good at interpreting plans and specifications when under pressure. Services will include maintenance of project documentation, supportive inspection services, review of pipe alignments and development of pipe profiles based on pothole information. The estimated contract cost is $422,600 based upon the 300 working days allowed in the construction contract and our estimate of how work will proceed (estimated schedule, number of work crews, night work, etc.). • Design engineer consultant services will be necessary to respond to any issues with the design discovered during construction, and to review all requests for clarification/information submitted by the contractor to ensure conformance with the design intent during construction. The design engineer will review all modifications to the plans as proposed by the contractor and the resident field engineer. The design engineer will also assist with the cathodic protection system inspection and check out, attend construction meetings as necessary, and assist as requested with change order reviews and as-built record drawings, etc. Staff is Page 4 of 6