From the Delta County Independent (Kathy Browning):
The Pall filtration system uses a series of membranes to cleanse the water. Inside the tall vertical pipes are membranes that resemble angle hair spaghetti. The water is pushed through the fibers. The membranes are backwashed 10 times a year with hot water. The process is called a CIP (Clean In Place) backwash. A solar system installed by John Myrtle keeps the 200,000 gallon hot water tank heated for the backwash. As water goes through the system, sensors measure the PH value, turbidity and particle counts. On Thursday, July 29, the new water plant had a PH reading of 7.15. Seven is neutral. The turbidity of the influent water was 2.77 NTU. The water distributed in the system had been filtered to .029 NTU. The particle count is not currently mandated by the state, but because it may be in the future the Hotchkiss water plant has the monitoring equipment already installed…
Chlorine is used as a disinfectant and fluoride is added for bones and teeth health. Then the water is put into the distribution system.