(1)  This regulation applies to a storage system that consists of a double-walled tank with interstitial space, or double-walled product piping with an interstitial space, or both.

(2)  A system operator of a storage system to which this regulation applies must not allow the storage system to be in use unless interstitial monitoring is carried out in respect of the storage system.

Penalty:  Fine not exceeding 100 penalty units.

(3)  For the purposes of subregulation (2) , interstitial monitoring in respect of a storage system is monitoring that –

(a) assesses whether there is a leak, in any wall of a tank, or piping, that forms part of a storage system to which this regulation applies; and

(b) is carried out on at least 2 occasions, at least 4 months apart, in each year.

(4)  If interstitial monitoring carried out in accordance with subregulation (3) determines that there is a leak, outside the accepted tolerances provided by the manufacturer of the tank or piping, respectively, in a wall of a tank or piping that forms part of a storage system to which this regulation applies, a system operator of the storage system must –

(a) notify an infrastructure owner of the storage system, within 7 days after the results of the interstitial monitoring are received by the system operator, that the storage system may not be providing full and continuous containment; and

(b) if petroleum may have been lost from the storage system, ensure that further petroleum is not lost from the storage system; and

(c) ensure that the storage system is not allowed to be in use until the storage system is repaired or replaced in accordance with regulation 11 .

Penalty:  Fine not exceeding 100 penalty units.