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Kauai Department of Water

 

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How Water System Works

How Water is Delivered

Edible Aquifer
    


Kauai’s  Department of Water operates 13 separate, unconnected water systems spread out along our island from Kekaha to Haena.  Pumping water from 48 underground wells and tunnels and storing it in 43 tanks, DOW delivers water to nearly 18,000 accounts through 400 miles of pipeline.  All the water that is provided to the Deparment's customers are from groundwater sources.

Below is an explanation of how the water is delivered.

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Water Delivery To Your House


 

Water Delivery Explanation
Below is a brief explanation on the different components for water delivery
Most of the Earth's fresh water lies underground, in between cracks in the rocks and particles of soil.
Big deposits of this water are called "aquifers." The word comes from the Latin words "aqua" (water) 
and "ferre" (to carry). Groundwater, like the water in oceans and streams, is always on the move.
Sometimes, groundwater comes to the surface all by itself, in "springs." Mostly, wells are dug, or
bored into the ground, and water is pumped to the surface.
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Most modern wells are drilled.  Drilled wells can be drilled more than 1,000 feet deep.  Often a pump is placed at the bottom to push water up to the surface.  The Department of Water gets its water from 48 wells and tunnels to supply its 13 water systems around the island. tunnel.jpg (36554 bytes)
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Water is pumped from the wells to the storage tanks.  Typically water is pumped into the storage tank whenever the water in the tank reaches a certain water level.  Before water is distributed into the storage tanks and distribution pipes, the water is chlorinated to get rid of any contaminants that may be in the water.   pump.jpg (70225 bytes)
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As the water is pumped from the wells, it is sent to storage tanks.  A typical Department of Water storage tank holds betweeen 100,000 to 1 Million gallons of water.   tank.jpg (29287 bytes)
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Water Mains deliver water from the tanks and wells to each community.  Smaller pipes are used to distribute water to each property.  The Department of Water uses mostly ductile iron and pvc for water distribution. pipe_work.jpg (45099 bytes)
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Meters are read by the Department of Water on a two month cycle.  The readings are used to determine how many gallons of water was used between readings and are used to determine your bi-monthly water bill. meter.jpg (49246 bytes)
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Every day our microbioligists go out into the community and get water samples from tanks, parks, and customer homes.  These samples are tested for contaminants to ensure the drinking quality of your water. lab.jpg (37600 bytes)
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Once a year, Water Quality Reports are mailed out to each resident on the island to report the quality of their drinking water. wqr_image.jpg (17285 bytes)
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