Section 329IAC9-4-1. Reporting of suspected releases

   The owner and operator of a UST system shall report to the agency within twenty-four (24) hours and follow the procedures in 329 IAC 9-5-4.1 for any of the following conditions:

(1) The discovery by the owner and operator or another person of released regulated substances at the underground storage tank site or in the surrounding area. Released regulated substances may include the presence of free product or vapors in any of the following:

(A) Soils.

(B) Basements.

(C) Storm sewer lines.

(D) Sanitary sewer lines.

(E) Utility lines.

(F) Nearby surface water.

(G) Ground water.

(2) Unusual operating conditions observed by the owner and operator that may include the erratic behavior of product dispensing equipment, the sudden loss of product from the UST system, or an unexplained presence of water in the tank unless the system equipment is:

(A) found to be defective but not leaking; and

(B) immediately repaired or replaced.

(3) Monitoring results from the release detection method required under 329 IAC 9-7-2 and 329 IAC 9-7-3 that indicate a release may have occurred unless:

(A) the monitoring device is:

(i) found to be defective; and

(ii) immediately repaired, recalibrated, or replaced;

and additional monitoring does not confirm the initial result; or

(B) in the case of inventory control, a second month of data does not confirm the initial result.

(Solid Waste Management Division; 329 IAC 9-4-1; filed Dec 1, 1992, 5:00 p.m.: 16 IR 1069; filed Jul 19, 1999, 12:00 p.m.: 22 IR 3706; readopted filed Jan 10, 2001, 3:25 p.m.: 24 IR 1535)