Public Utilities
Customer Service Office
8:00 a.m. - 5:00 p.m.
Mon. - Fri.
757-393-8524
FAX 757-397-6350
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Public Utilities
From The Lakes To Your Tap: Your Water Utility System
The Citys water supply consists of four surface water reservoirs.
The
City also has five deep wells for groundwater. This combination prevents us from being
dependent on only one source.
Raw water is withdrawn from our lakes. Chemicals are added to the raw
water and mixed to uniformly disperse throughout the water. Some of the purposes of adding
these chemicals are to remove small particles and organisms, destroy odor and color, and
kill bacteria. The water then goes through a contact basin, which allows the small
particles to combine with the added chemicals. This forms larger, more visible particles.
This process is called coagulation.
This water then goes to the clarifiers, which allows the heavier suspended particles to
settle out at the bottom, while the clear water moves on. This process is called
sedimentation.
In the filtration process, the water is passed through filters that help to
remove smaller particles. In the disinfection process, sodium hypochlorite is added
to kill any remaining bacteria and insure that the water will remain pure as it travels to
your home.
Once the water is treated, it is pumped through large pipelines called transmission
mains. These carry the water to our storage tanks throughout the City. These
reservoirs store water until it is needed by customers. Smaller pipelines called
distribution mains carry water from the reservoirs to your home. At your home, water is
taken from the distribution mains by a small service line. Each service line is attached
to a meter to record your consumption of water.
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