Peoria does not send the same water to every address. According to the City's water FAQ, homes north of Bell Road receive groundwater and Colorado River water from the Central Arizona Project canal, treated at the Pyramid Peak Water Treatment Plant that Peoria owns jointly with Glendale. South of Bell Road, the supply is groundwater plus Salt and Verde River water treated at the Greenway plant. When summer demand peaks, a larger share of the water at every tap comes from wells.
The sources differ in hardness, and hardness shows up inside the house. Treated river water averages 13 to 17 grains per gallon, while the City's wells range from 2 to 8. Harder water leaves more scale in water heaters, on faucet aerators and in softener resin, so a softener setting or flushing schedule that works on one street may not fit another. When you call, tell us your neighborhood and what you are seeing, and we can factor the local supply into the visit.