Section 329IAC9-6-5. Temporary closure

   (a) When an UST system is temporarily closed, the owner and operator shall complete the following:

(1) Continue operation and maintenance of corrosion protection under 329 IAC 9-3.1-2.

(2) Continue operation and maintenance of any release detection under 329 IAC 9-7, except release detection is not required as long as the UST system is empty. The UST system is empty when all materials have been removed using commonly employed practices so that no more than:

(A) two and five-tenths (2.5) centimeters or one (1) inch of residue; or

(B) three-tenths percent (0.3%) by weight of the total capacity of the UST system;

remains in the system.

(3) Comply with 329 IAC 9-4 and 329 IAC 9-5 if a release is suspected or confirmed.

  (b) When an UST system is temporarily closed for three (3) months or longer, the owner and operator also shall comply with the following requirements:

(1) Leave vent lines open and functioning.

(2) Cap and secure the following:

(A) All other lines.

(B) Pumps.

(C) Manways.

(D) Ancillary equipment.

  (c) When an UST system has been temporarily closed for twelve (12) months, the following requirements must be completed:

(1) The owner and operator shall permanently close the UST system if it does not meet the:

(A) performance standards in 329 IAC 9-2-1 for new UST systems; or

(B) upgrading requirements in 329 IAC 9-2.1;

except that the spill and overfill equipment requirements do not have to be met.

(2) The owner and operator shall permanently close the substandard UST system at the end of the temporary twelve (12) month period under sections 1 through 4 of this rule.

(3) The commissioner may grant an extension of the twelve (12) month temporary closure period based on the following:

(A) The owner and operator shall complete a site assessment under section 2 of this rule before the owner and operator may apply for an extension.

(B) The length of the extension is based on the following:

(i) The results of the site assessment under clause (A).

(ii) The owner and operator shall submit written proof that explains why permanent closure cannot take place within the twelve (12) month period of temporary closure.

(iii) The owner and operator shall submit information that explains when permanent closure will take place.

  (d) The owner and operator shall demonstrate compliance with this section by providing a certification of compliance on the notification form under 329 IAC 9-2-2. The certification must demonstrate that the person that performs the work has been certified by the office of the state fire marshal under rules of the fire prevention and building safety commission at 675 IAC 12-12. (Solid Waste Management Division; 329 IAC 9-6-5; filed Jul 19, 1999, 12:00 p.m.: 22 IR 3722; readopted filed Jan 10, 2001, 3:25 p.m.: 24 IR 1535; filed Aug 30, 2004, 9:35 a.m.: 28 IR 173)