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CITY OF SANTA ANA EXHIBIT A RFP NO.: 17-087 WATER SYSTEM CONTROL DESIGN, PROGRAMMING AND SUPPORT SERVICES SCOPE OF WORK Introduction and Background: The City of Santa Ana is located in the heart of Orange County, California and is approximately 27 square miles. The City provides potable drinking water for all of the City's residents and businesses. The City's water production system consists of 22 wells, 4 pressure control stations, 7 Metropolitan Water District connections, 7 water booster stations and 8 reservoirs. Control and monitoring of the water system is coordinated via the City SCADA system using a series of radios to send and receive data from remote locations to the City Home SCADA control room. . Description of Work: The City desires to retain qualified Consultants to provide control system design, engineering, integration, and programming support on an as -requested basis for the City's water production facilities. The City's facilities are controlled by the Dynac ES SCADA software as provided by Kapsch TrafficCom USA, Inc. The City water production sites consist of facilities with many of the following components: Modicon Momentum Programmable Logic Computers (PLC), ABB Variable Frequency Drives (VFD), Limitorque motor operated valves (MOV), mag meters (various brands) and other related appurtenances. Local control is often achieved via a human machine interface (HMI) local to the remote terminal unit (RTU) control panel. The HMIs at any station are either the Magelis HMI or a Unitronics display. It is the City's desire that all site control reside within the site PLC with the HMI acting primarily as a site control interface relaying operator commands to the site PLC. Consultant Responsibilities: CONTROL SYSTEM DESIGN SERVICES Consultant shall be required to provide full control panel designs which conform to City standards, for well, pump motor and control valve operations. Control panel designs shall contain fully engineered diagrams that specify all equipment, back panels, terminal blocks, special components and related items. Also included in the design shall be all control wiring diagrams, specific I/O, panel elevations, item and quantity lists with specific part numbers, Control systems designs shall be complete and inclusive of all information necessary for the City to utilize as bid/procurement documents to have the panels built and installed. The Consultant shall provide SCADA, control and instrtnnentation design support services, including but not limited to those described below: • Consultant shall perfonn field investigations of existing control panel wiring to verify and, as needed, correct wiring drawings for existing control panels. Consultant shall make corrections to wiring drawings as necessary to reflect current field conditions prior to performing any detailed design work. • Consultant shall provide and/or prepare documentation, schematic drawings, and. SCADA network configuration diagrams for future use, maintenance, and programming of the SCADA system. The detailed design documents may include the following: o Hardware Engineering and Design Layout — Scaled drawings shall be prepared showing existing Page 1 of 3