Ammon Water Hardness & Quality Report (2026)

The City of Ammon Water Department supplies residents of Ammon, Idaho, drawing exclusively from the Eastern Snake River Plain Aquifer. Multiple groundwater wells, located near 2135 S Ammon RD, tap directly into this aquifer, eliminating the need for surface water treatment plants. Water Foreman Nathan Riblett at 208-612-4031 can be contacted for inquiries regarding the supply for Ammon, ID 83406. The watershed is the Eastern Snake River Plain, a large basin shaped by the Snake River.

Water infiltrates through unconsolidated sediments and fractured volcanic rocks belonging to the Snake River Group, which include basalt aquifers formed from Miocene to Quaternary periods. These geological formations are rich in minerals such as limestone and dolomite. The water's extended contact with these calcareous and volcanic rocks leads to significant dissolution, resulting in a hard supply with elevated mineral content. This geological setting promotes mineralization without substantial surface dilution.

Such very hard water can lead to considerable scale buildup in household pipes, water heaters, dishwashers, and washing machines, diminishing their efficiency and shortening their lifespan. You might notice visible deposits on appliances like coffee makers and faucets, potentially increasing energy costs by 20-30%. Regular maintenance, such as vinegar descaling and biannual flushing of water heaters, is advised. Installing a water softener is strongly recommended to prevent appliance damage, extend equipment life, improve soap effectiveness, and reduce spotting on dishes and skin dryness. The 2022 Consumer Confidence Report indicates total hardness is very high, though specific pH data wasn't provided.