Res 2016-137/approving a Water Master Plan to guide the future maintenance and extension of the City’s Water Infrastructure

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Alan Plummer Associates, Inc. Water Master Plan Update 2016 8 Based on the modeling scenarios run, a list of recommended capital improvements projects (CIP List) was developed for the interval between each future target year. In general, projects were identified for one of the following reasons: Satisfaction of regulatory requirements, Satisfaction of City criteria for minimum pressure, Improvement of water age/quality, Improvement of hydraulic efficiency (elimination of dead-ends, creation of looped systems), and Upgrading small-diameter connections (< 6-in diameter pipes) 8.1 DEVELOPMENT OF PROJECT LIST CIP projects were identified through modeling iterations where minimum pressures, maximum headloss, elevated storage tank cycling, and water age runs were evaluated. Projects were added to address deficiencies in these areas. APAI also reviewed the regulatory requirements for supply, storage, and pumping for each pressure plane in the system (Subchapter 2.3), which resulted in the addition of a few projects. Information on proposed developments (both near- term and long-term) was reviewed and incorporated into this WMP. Two specific large developments that impact this CIP List are Paso Robles and La Cima Developments to be located in the west and northwest parts of the City. Finally, APAI met and communicated with the City on several occasions where their needs and goals for the system were conveyed. This also resulted in several additional projects. The City provided valuable input like their desire for the following: Upgrading all existing water lines crossing under Interstate Highway 35 (IH- size lines, lines that served more than one customer connection and any cul-de-sac line longer than 300-feet. Adding a new water well to the system by 2025 for water supply redundancy. 8.2 CIP LIST AND OPINIONS OF PROBABLE CONSTRUCTION COST This section presents the CIP list for each future target year (Tables 8-1 through 8-3). The projects are also presented visually in Figure 8-1. The projects for each target year are listed in priority according to the information available at the time this WMP was developed. Acceleration or delay of development schedules could cause a change in priority of these projects. Appendix F contains the opinion of probable construction costs (OPCC) for the recommended CIPs. It is important to note that this CIP list is in addition to expenditures that will be required of the City due to its participation in the HCPUA project. 8-1 m:\projects\0600\022-01\doc\report\draft\draftmasterplan-v15_hef.docx