Under Ground Storage tanks:
About 640,000 underground storage tanks (USTs) nationwide store petroleum or hazardous substances that can harm the environment and human health if the USTs release their stored contents.
Non- Regulated Underground Storage Tanks Closure
USTs with an aggregate capacity of 2,000 gallons or less are exempt from the UST regulations. Heating oil USTs of any size, used exclusively to heat residential buildings, are exempt from the UST regulations.
ISRA
USTs with an aggregate capacity of 2,000 gallons or less are exempt from the UST regulations. Heating oil USTs of any size, used exclusively to heat residential buildings, are exempt from the UST regulations.