2015.08.11 Packet Combined - Laserfiche WebLink

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Explanation: Since being authorized in June 2015, Barr has been engaged in evaluating and screening the broad range of potential technologies that may be applicable for treatment of 1,4 -dioxane. That work has included literature reviews, collection and evaluation of information from technology vendors, evaluation of operating facilities, and bench scale testing. That screening process has identified two specific technologies that warrant detailed treatability testing in a pilot scale setting at the City's Water Treatment Plant number 1 (WTP1). Barr work to date has also involved the planning of treatability tests, including design of the test protocols and definition of the equipment that would be required. Barr's work to date is currently being assembled in a report that will be titled "Technology Screening Report and Treatability Testing Work Plan" (the Report). That report will be submitted in early September for City review and acceptance. Work Order Number 1 under the proposed Master Services Agreement describes the services Barr will perform to implement the treatability testing described in the Report. The purpose of the treatability testing is to provide the scientific and engineering data required to support Barr's professional evaluation, analysis, and recommendation of the preferred technology for full scale implementation to treat 1,4 -dioxane at WTP1. The testing will also provide information that is critical to the design of the full-scale modifications to WTP 1. Under Work Order Number 1 Barr will procure all equipment and installation services needed to make the pilot treatment systems operational, and will provide all laboratory testing services required. The pilot testing is expected to begin in October and continue through early May, during which time WTP 1 will be off-line. That timing coincides with the off-peak water demand season when the plant is not needed. The effort will culminate with a report to the city that summarizes the results and provides a recommendation for the preferred technology (expected around June 2016). Subsequent Work Orders under the same Master Services Agreement will address Barr's professional services associated with future phases of the project. Those phases, and their approximate timing based on current knowledge, are summarized below: Design: June 2016 through January 2017 (approximately 8 months) Procurement and Contracting: February 2017 through April 2017 (approximately 3 months) Equipment Fabrication and Construction: May 2017 through July 2018 (approximately 14 months, target substantial completion and availability of water early 2018 summer season)" Costs and Funding: This project will be funded from Fund 206. Craig G. Schlichting, P.E. Director of Community Assets & Development Attachments