The picture shows the lab area at the Water Treatment Plant where much of the testing is done. If you look carefully at this picture, you can see water running from five spigots. The water in the flask to the right is water as it comes from the river. The left flask is water that is fully trusted.
Where the water is stored.
From the filter bed, the water goes into a 16 foot deep clearwell which holds 21,138.5 gallons per foot. The clearwell serves a dual purpose as it not only provides storage for the water, it allows contact time for the disinfectant to work. At the clearwell, there are three 250-HP pumps which move the treated water to the three underground reservoirs located south of the plant.
Reservoir 1 was built in 1895 and holds 3,000,000 gallons. Reservoir 2 was built in 1940 and holds 2,280,000 gallons, and Reservoir 3 was built in 1973 and holds 3,720,000 gallons.
The amount of pressure at the faucet is directly related to the elevation of the storage reservoir above that faucet, and Coffeyville is fortunate with the location of the Water Treatment Plant. The reservoirs are approximately 1,600 feet northwest of the river with the plant between the river and the reservoirs. The elevation of the river at the pumping station is about 700 feet while the elevation at the reservoirs is approximately 907 feet. The average elevation in Coffeyville is 730 feet, which makes elevating the water towers unnecessary while at the same maintaining an average water pressure of approximately 60 pounds per square inch (psi).
From the reservoirs, the water travels through some 180 miles of water lines to serve approximately 5,500 customers plus eight rural water districts, and the cities of Dearing and South Coffeyville.