Minnesota Statutes Environmental Protection (Ch. 114C-116I) § 116.47. Exemptions

(1) farm or residential tanks of 1,100 gallons or less capacity used for storing motor fuel for noncommercial purposes;

(2) tanks of 1,100 gallons or less capacity used for storing heating oil for consumptive use on the premises where stored;

(3) pipeline facilities, including gathering lines, regulated under the Natural Gas Pipeline Safety Act of 1968, United States Code, title 49, chapter 24,  1 or the Hazardous Liquid Pipeline Safety Act of 1979, United States Code, title 49, chapter 29;  2

(4) surface impoundments, pits, ponds, or lagoons;

(5) stormwater or wastewater collection systems;

(6) flow-through process tanks;

(7) tanks located in an underground area, including basements, cellars, mine workings, drifts, shafts, or tunnels, if the storage tank is located upon or above the surface of the floor;

(8) septic tanks;

(9) tanks used for storing liquids that are gaseous at atmospheric temperature and pressure; or

(10) tanks used for storing agricultural chemicals regulated under chapter 18B, 18C, or 18D.