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September 14, 2018 <br />Mr. Rudy Rosas, P.E. <br />Senior Civil Engineer <br />City of Santa Ana <br />220 S. Daisy Ave. M-85 <br />Santa Ana, CA 92703 <br />Subject: Proposal to Provide Ongoing Water System Computer Model Solutions, <br />3 -year Initial term, with optional renewal for 2 years <br />Dear Mr. Rosas, <br />Sedaru, Inc. (Sedaru) is pleased to submit this proposal to the City of Santa Ana (City) to provide <br />software and services to the City's water engineering department. This proposal serves as a <br />continuation of services provided under Sedaru's Water System Computer Model Solutions <br />contract from 2015-2018, wherein Sedaru delivered solutions from hydraulic modeling, to <br />engineering analysis and applications designed to maximize the input, output, and <br />recommendations from the City's calibrated water system computer model. <br />Background: Sedaru has provided engineering solutions for the City since 2015, incorporating: <br />the City's institutional knowledge, while gaining a unique and valuable understanding of the <br />City's water system hydraulic challenges, performance characteristics, infrastructure condition <br />and opportunities for efficiency. <br />Unique, City -specific Experience: Sedaru has delivered a comprehensive range of engineering <br />and operations related solutions, as summarized below. <br />Built and calibrated the City's water system hydraulic model, <br />Supported hydraulic simulations for the City's 2016 Water System Master Plan, including: <br />o System -wide fire flow analysis to understand and plan -for system redundancy and <br />adequate minimum fire flow protection, <br />o Criticality analysis to Identify the City's most vulnerable corridors & related system <br />valves <br />o Energy management analysis to assist with efficient use of existing system capacity, <br />o Water quality analysis to identify areas of system stagnancy across the system, where <br />high disinfectant bi-products may form. <br />Analyzed multiple water quality and operational related analyses to ensure acceptable <br />minimum water age under varying demand conditions, <br />Delivered analysis, results, and a Technical Memorandum with recommendations for the <br />County Administrative Block hydraulic Feasibility Study, <br />Completion of a water system flushing program, <br />Delivery of the Hydraulic Model and GIS -based solution "Sedaru" to City Engineering & <br />Operations staff to support ongoing, in-house: <br />o Hydraulic Simulations (Sedaru Modeling) for utility -focused analysis such as fire flows, <br />o SCADA trending & alarms (Sedaru OMNI), integrated in the same Model interface, <br />o Facility Inspections from an app, w/automated production reporting (Sedaru Fieldforce) <br />o Identification of optimal pipeline replacement strategies for the City's high return on its <br />capital investment (Sedaru CIP). Services to implement this tool included: