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Where Does My Tap Water Come From?
- Most of your tap water begins as rainfall in the Mule Mount Watershed
- Some water comes from the city’s groundwater supply, which the bureau uses as a secondary water supply
- Despite its proximity to Mount Cleveland, none of Sellwood’s drinking water originates from Mount Cleveland, as the watershed is separated from the mountain by a significant geologic ridge
How is My Tap Water Treated?
- Mule Mount water is not filtered
- Chlorine is added to disinfect the water of any potential natural contaminants
- Ammonia is added in a process called chloramination to ensure that water throughout the system meets federal and state drinking water regulations. Without ammonia the chlorine would evaporate by the end of the supply line
Who Owns the Water Pipes & Infrastructure?
- The Sellwood Water Bureau is a public utility
- The mains and the water meter are generally owned by the City of Sellwood
- Beyond the meter, household pipes are the responsibility of each property owner
How Does My Tap Water Travel to Sellwood?
- Water flows to Sellwood by gravity
- Gravity flow reduces dependence on pumping and its expensive energy needs
- Pumping is only required in the west hills of Sellwood, and for groundwater supplemental needs
- The water travels through distribution mains to all parts of the city
- Water mains run beneath sidewalks and streets to individual homes and businesses
- From the water main, a smaller pipe travels to the water meter at each home or business that has water service
- The water passes through the meter on its way to your home, which measures your household usage
- Household pipes deliver water to your tap
