Agmt18 Kennedy/Jenks Consultants, Inc.

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EXHIBIT "A" SCOPE OF SERVICES Consultant shall complete a 2018-19 Piping Alternatives for Indoor Recycled Water (RW) Use in Commercial Construction Study which includes all tasks listed below: Task 1 — Identify Piping Alternatives for Indoor RW Use in New Commercial Construction Consultant will determine and document the feasibility of using plastic and stainless steel pipe (piping other than copper) inside commercial buildings for indoor RW use. This task will be specific to the City, in consideration of the alternative plumbing materials compatible with and resistant to City's existing RW quality and corrosivity for commercial interior plumbing. Consultant will identify large and small diameter pipe suitable for indoor RW use in new commercial buildings including valves, fittings and typical end-use devices such as ball valves, gate valves, flush valves, pumps, trap primers and other typical appurtenances used for a dual - plumbed system for toilet flushing and cooling. The analysis will consist of: • Resistance to corrosion, relative to the City's current RW quality. • Additional design considerations consisting of: need/methods for restraining alternative pipe materials, product availability, and installation capabilities of local contractors. • California Plumbing Code requirements. • Long-term reliability/performance based upon published studies. • Relative cost to other pipe and related appurtenant materials. Consultant will identify plumbing hardware and components such as fittings, valves, toilet hardware, etc., that contain brass or other durable components that can be used in RW plumbing systems. Consultant will identify plumbing hardware that is either resistant, or unaffected by corrosion due to the RW quality. This will consist of a summary of compatible/corrosion resistant alloys and manufacturers of products that can be used with the City's RW. A summary of the plumbing appurtenances options/materials compatible with and resistant to the City's current RW quality corrosivity and manufacturers will be documented in a brief Technical Memorandum (TM1). Preparation of TM1 is included in Task 4 below. Consultant will include in TM1, a summary of case-studies/references that evaluate the use of up to four (4) non -copper piping materials such as polyvinyl chloride (PVC), polyethylene, stainless steel, or epoxy coated steel in commercial buildings. A summary of major building codes and states that allow plastic or stainless steel pipe for indoor commercial use will also be included in TM1. Task 2 — Identify and Evaluate Options for RW Use In Copper - Plumbed Buildings Consultant will summarize options for use of recycled water in buildings that have already been plumbed with copper piping. The options include the following: REV: 11-08-18 VR Page 9 of 14 ATTY/AGR.2018.262/Kennedy Jenks Consultants / Piping Alternatives Study