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2. Approve a Second Amendment to the contract with RMC Water and Environment in the amount of$74,667 for design work associated with a water pressure booster station to be located at the Ken Mercer Sports Park. 3. Authorize the Director of Engineering to approve and execute a contract change order for approximately $325,000 to purchase and install a booster station for the recycled water system. If the timing of the construction of the booster stations does not align with the related work, the construction project will be brought to City Council with a recommendation to award a separate construction contract. FINANCIAL STATEMENT There is not a financial impact associated with this action because all required funding has been budgeted for the recycled water infrastructure project. BACKGROUND On June 16, 2015 City Council awarded the construction of the Recycled Water Infrastructure Expansion Phase 1A project, CIP No. 141026 to Ranger Pipelines. At the June 16, 2015 meeting Council also approved the total project budget of $17,359,925. As presented to City Council, the project is largely funded through the State's Clean Water State Revolving Fund (65%) and Proposition 1B grant (35%). The total project budget included a contingency in the amount of $1,490,000. The Director of Engineering was authorized to approve and execute any required contract changes orders up to an amount equal to the contingency. Change Orders to Date To date there have been 30 change orders totaling approximately $1,301,000. Of this change order amount approximately$558,000 is eligible for reimbursement from the Loan and Grant. The remaining change order work totaling $743,000 was funded by other currently budgeted Capital Improvement Project funds as detailed below: 1. During the construction of the recycled water infrastructure project three broken and leaking potable water pipelines were discovered. The leaks were discovered last winter where the large diameter mains cross over the top of arroyos at the following locations; West Las Positas and Chabot Channel, West Las Positas and Tassajara Creek, and Stoneridge Drive and Chabot Channel. To provide adequate fire flow water volume, and meet summer time customer water demand, it was critical to repair the pipelines immediately. Because of the urgency the work was added by change order to the Ranger Pipeline's contract. The repair work involved removing relatively brittle ductile iron piping and installing all new PVC piping and TR Flex fittings at each arroyo crossing. The potable water repairs combined cost $354,000 and were funded through the Annual Water Main projects, CIP Nos. 141028 and 151028. 2. Recycled water pipeline was installed almost the entire length of the Sports Park Drive, the frontage road that runs the length of the Ken Mercer Sports Park. The asphalt was in very poor condition before the start of the recycled water project, consequently the excavation of the trench for the pipeline, as well as the presence of Page 3 of 8