Portland's water supply system

URI: https://gptkb.org/entity/Portland's_water_supply_system
GPTKB entity
Statements (28)
Predicate Object
gptkbp:instanceOf gptkb:water_supply
gptkbp:annual_water_delivery ~36 billion gallons
gptkbp:distribution_system_length 2,200 miles
gptkbp:emergency_backup gptkb:Columbia_South_Shore_Well_Field
gptkbp:established 1895
gptkbp:gravity-fed yes
gptkbp:hasPopulation ~1 million
gptkbp:historical_infrastructure open reservoirs
https://www.w3.org/2000/01/rdf-schema#label Portland's water supply system
gptkbp:managedBy gptkb:Portland_Water_Bureau
gptkbp:notable_reservoir gptkb:Mount_Tabor_Reservoirs
gptkb:Washington_Park_Reservoirs
gptkbp:notableEvent 2014 Mount Tabor Reservoirs decommissioned
gptkbp:number_of_reservoirs 5 (in-town)
gptkbp:protected_watershed_area gptkb:Bull_Run_Watershed_Management_Unit
gptkbp:regulates gptkb:U.S._Environmental_Protection_Agency
gptkb:Oregon_Health_Authority
gptkbp:secondary_source gptkb:Columbia_South_Shore_Well_Field
gptkbp:serves gptkb:Portland,_Oregon
gptkbp:source gptkb:Bull_Run_Watershed
gptkbp:touredWith yes
gptkbp:transition_to_covered_reservoirs in progress
gptkbp:water_quality_reports published annually
gptkbp:water_treatment chloramination
filtration (planned)
gptkbp:website https://www.portland.gov/water
gptkbp:bfsParent gptkb:Powell_Butte_Reservoirs
gptkbp:bfsLayer 7