An abbreviation for parts per billion. Atoms that exhibit radioactivity. A required process intended to reduce the level of a contaminant in drinking water. Turbidity does not present any risk to your health. We monitor turbidity, which is a measure of the cloudiness of water, because it is a good indicator that the filtration system is functioning properly.
Chlorine is added to disinfect the finished water.
The WTP maintained an average of 0.47 PPM in 1999. Chlorine that was added for disinfection by Anacortes is monitored throughout the City of Oak Harbor. A chlorine residual is an indicator of complete disinfection. City of Oak Harbor Water Distribution System Water from the Anacortes Water Treatment Plant is pumped through 24 inch and 10 inch diameter transmission lines to the City of Oak Harbor. The water passes through a booster pump station where fluoride is added.