ARSD 74:56:03:27. AST systems temporarily removed from use

Requirements for AST systems temporarily removed from use are as follows: (1) Owners or operators of AST systems temporarily removed from use for less than three months with regulated substances left in the system shall continue operation and maintenance of release detection and corrosion protection devices; and (2) Owners or operators of AST systems temporarily removed from use for longer than three months but less than 24 months shall perform the following: (a) All manways shall be locked or bolted securely and fill lines, gauge openings, or pump lines shall be capped or plugged to prevent unauthorized entrance or tampering; and (b) If regulated substance is left in the tank, requirements established in subdivision (1) of this section shall be met; or (c) If regulated substance is removed, the tank shall be protected from flotation.