Highline Water District Annual Report 2020

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• Administrative, Customer Service, and COVID-19 .......6 • Financials ....................................................................7 Infrastructure • Capital Improvements .......................................... 8-18 • Developer Extensions ...............................................19 Executive Summary Water Sources Seattle Public Utilities supplied approximately 70% of our water from three metered locations; the remaining 30% was sourced from four District-owned groundwater wells with three treatment facilities. The District supplied approximately 2.3 billion gallons of water in 2020. System Inventory Pump Stations ...................................................................6 Water Storage Facilities .....................................................8 Pressure Zones ................................................................12 Pressure Reducing Stations .............................................29 Emergency Interties ........................................................10 Miles of Water Main (from 2” to 36” diameter) ........... > 305 Active Meters* .......................................................... 18,822 *Ranging in size from 5/8” to 8”, including one hundred and twelve 3” and larger meters. Miles of Water Main by Type Ductile Iron ................................................................ 191.1 Asbestos Cement .......................................................... 65.1 Cast Iron ....................................................................... 44.6 Other ..............................................................................4.0 Operations Overview 2020 brought unprecedented change for District operations. Covid-19 required Highline to reevaluate existing procedures to ensure continuity of operations while reducing risk of exposure to the public and staff. Changes included limiting public access to the District Headquarters, modifying work schedules, duties, and workspaces to avoid close contact. The District ceased locking delinquent accounts and suspended late fees. Despite the pandemic, field crews managed to install new or replaced services and performed two water main replacement projects. The District will continue to dynamically respond to the changing situation as Covid evolves into 2021. Infrastructure Overview In 2020, the District completed Project 16-3 Mansion Hill Reservoir Relocation. The $9.4M project was one of the District’s largest…

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