Pressurized water storage tanks collect and store underground water under pressurized conditions to provide cold water supply to single or multiple premises.

This standard prescribes minimum performance and construction requirements for pressurized storage tanks for service in water well systems with a maximum factory precharge pressure of 40 psig (276 kPa), or with exception as stated in DOT issued allowance to be operated in ambient air temperatures up to 120°F (49°C), with maximum working pressures not less than 75 psig (517 kPa) and not greater than 150 psig (1034 kPa) and tank volumes not exceeding 120 gallons (454L).