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Water
The City of DuPont utilizes groundwater from five (5) wells for its public drinking water supply. The City's water supply wells are located at Bell Hill and Hoffman Hill. Bell Hill Wells No's. 1 and 3 draw water from the Red Salmon Springs Aquifer; Bell Hill Well No. 2 draws water from the deeper undifferentiated Outwash/ Lakewood Glacier Aquifer. Hoffman Hill Well No's. 1 and 2 draw water from the Red Salmon Springs Aquifer. The City's water system is equipped with emergency generators for operation during power outages. Additional booster pumps were placed in service in 2003 to provide adequate pressure to customers on Hoffman Hill. All City wells access deep aquifers making them less susceptible to contaminants.
The City has two storage reservoirs. A 3.0 million-gallon reservoir is located on Hoffman Hill and a 1.0 million-gallon reservoir is located at Bell Hill. The only treatment used on DuPont's groundwater sources is the addition of small amounts of chlorine to provide disinfection.
For questions on Utility Billing or setting up a Water Utility Account, Click Here .
Water Conservation Tips
Indoor-- Make sure your home is leak free.
- Take shorter showers. Even a one or two minute reduction can save up to 700 gallons per month.
- Run only full loads in the washing machine and dishwasher. Saves 300 to 800 gallons per month.
- Insulate water pipes. Provides hot water faster and avoids the wasting of water while waiting for hot water flow.
Outdoor-
- Water lawns in morning or evening to reduce evaporation.
- Sweep driveways and patios rather than washing.
- Wash vehicle at a commercial car wash.
- Use a shut-off nozzle on outdoor hoses.
Cross Connections
One of the concerns of the Washington State Department of Health involves drinking water cross connections. A cross connection is any connection between a safe drinking water source and an unsafe source of water or liquid. This connection presents a health risk and needs to be eliminated or controlled.
Under certain conditions, the water can flow in the reverse direction as a result of system pressure loss. This is known as backflow. There are two types of backflow, Backsiphonage and Backpressure.
Backsiphonage is backflow caused by negative or reduced pressure in the supply lines that may be the result of a main break or firefighting activities in the area.
Backpressure is caused when a non drinking water system pressure is greater than the drinking water system due to a pump, boiler, elevation difference or air or steam pressure.
Safe drinking water is a resource that all of us depend on. We need to be aware that system integrity is a community effort and responsibility. Please eliminate potential cross connections to ensure a healthy future for yourself, your family and all members of the community.
Backflow Assembly Inpection Line- Fred Foreman (253) 912-5381 x5292
