BHC Consultants 2/24/2020 - Laserfiche WebLink

City of Everett EXHIBIT A SCOPE OF SERVICES Background The City of Everett, Washington (City) has selected BHC Consultants, LLC (BHC) to provide engineering services for the Evergreen Way Pump Station (EPS) Modifications Project. The EPS has two pumps that are rated 350 horsepower (hp) and three that are rated 450 hp. The City has spare 450 hp motors. All existing pump motors are rated 2300 Volts (V). Pumps 1 and 2, each rated 350 hp, date from approximately 1998. Pumps 3 and 4, each rated 450 hp, date from approximately 1965. Pump 5 (450 hp) is currently being replaced with a new pump and motor. The City desires pump station modifications because: • The City's service agreement with Snohomish County PUD (SnoPUD) requires pump motors for Pumps Nos. 1 and 2 to be upgraded to soft starters or variable frequency drives (VFDs) by 2021; • The arc flash safety needs to be improved at the facility; and • The electrical controls and instrumentation are dated and at the end of service life and needs to be updated. The EPS modifications will include: • Replacement of all electrical switchgear, motor starters, instrumentation, and supervisory control and data acquisition (SCADA) gear in a new separate electrical and controls building. Building to be arc flash compliant. • Maintaining service during the construction period The modifications will be designed in accordance with the requirements of the Washington State Department of Health (DOH), City standards, International Building Code (IBC), National Electrical Code (NEC), Occupational Safety and Health Administration (OSHA) and the Washington Administrative Code (WAC). Also, the modifications will be coordinated and/or permitted from the City of Everett Building Department for building and electrical reviews and permits. The Project design will include the following elements: • All structures shall be designed to conform to the 2018 IBC including City Amendments. • Medium-voltage electrical equipment will be in a separate electrical room with adequate working space and arc flash mitigation measures. • Control equipment will be in the electrical room with views of the pumps. • Instrumentation and Controls. New equipment shall be consistent with City standardized equipment. • Provision for connecting a 480V portable standby power generator-set. • Revised building and site lighting. All lights shall be LED. • The required building addition will be designed as a standalone structure separated from the current building by a code required seismic joint. • Upgrade to surge anticipator system, if needed. 2 r ■ [1110