To date, the Bloomington water supply has passed all lead and copper testing associated with this law. Tank storage ensures sufficient water pressure and volume necessary to fight fires, even if the electricity that runs the water pumps is off. When use is high, tanks also provide an extra source of drinking water. Tanks are refilled at night when drinking water use is low. Thoroughly disinfected drinking water can be stored indefinitely in capped plastic or glass containers that will not rust.
Some plastics can make water taste bad.
Trial and error is recommended to determine whether or not a container will work for drinking water storage. Whenever possible, store water in a refrigerator. Use cold water. Hot water is more likely to contain rust, copper and lead from your household plumbing and water heater. The presence of high amounts of the minerals calcium and magnesium constitutes hard water.