Even scratches in a metal tank caused by careless installation can increase corrosion and tank deterioration. Residential and farm underground storage tanks of less than 110 gallons are not federally regulated. All new underground petroleum storage tanks and related piping must be constructed of nonmetallic materials, such as fiberglass, or have corrosion protection . New installations must also have spill and overfill protection . Spill protection generally consists of a catch basin.
Overfill protection is an overfill warning or prevention such as an automatic shutoff or buzzer.
Spill and overfill protection can help prevent groundwater pollution. Contact the ADEQ for more information on underground storage tank requirements and recommendations. Check with State Fire Marshall. Back To Top 3. Monitoring Regulations for new underground tanks require that all tanks have a method of detecting leaks.