Minnesota Aboveground Storage Tanks: What you need to know

Aboveground storage tank (AST) regulations: Minnesota Rules (MR) 7151.1100 to 7151.9600

Applicability: MR 7151.1300

Small facilities:

Secondary containment: MR 7151.5400

Monitoring: MR 7151.7200

Corrosion protection: MR 7151.5600

Overfill protection: MR 7151.5700

Out-of-service ASTs: MR 7151.8200

Major facilities: MR 7001.4205 to 7001.4250

Minnesota Pollution Control Agency (MPCA) Tank Compliance and Assistance Program

Minnesota Department of Commerce Petroleum Release Compensation Board

Minnesota Department of Public Safety State Fire Marshal Division (SFMD)

Local municipal boards and commissions

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

• Rules. Minnesota regulates all aboveground storage tanks (ASTs) that store liquid substances that may pollute the waters of the state. Facilities with a capacity of 1 million gallons (gal) or more are required to obtain permits from the Minnesota Pollution Control Agency (MPCA). Minnesota requires various safeguard actions to prevent spills and leaks from ASTs, such as secondary containment, corrosion protection and overfill protection, and tank monitoring. The level of protection required depends on the type of product stored, the size of the tank, and the date that the tank was installed.

Under federal regulations, ASTs with a total oil storage capacity of greater than 1,320 gal must meet Spill Prevention Control and Countermeasure (SPCC) requirements. See the national section SPILL PREVENTION—SPCC PLAN for a summary of plan requirements.

• Administration and enforcement. The MPCA administers and enforces its ...