(a) In addition to the emergency notification required in En 511.05, LPG operators and landfill gas operators shall report in writing to the department any event occurring in connection with its facilities and services, as follows:
(1) An LPG operator or landfill gas operator shall report to the department within 20 business days following discovery any incident which the LPG operator or landfill gas operator shall be required to report to the federal Office of Pipeline Safety pursuant to 49 C.F.R. ยง 191.9 on federal Department of Transportation Form PHMSA F 7100.1, "Incident Report-Gas Distribution System," a copy of which shall be submitted to the department;
(2) Each LPG operator and landfill gas operator shall report to the department twice annually on the status of any ongoing leaks occurring in its gas distribution systems; and
(3) An LPG operator or landfill gas operator shall report to the department any accident involving injury to a person or damage to property as provided in En 511.07(b).
(b) An LPG operator or landfill gas operator shall file any report required pursuant to (a)(1) above in addition to any report required pursuant to (a)(2) or (a)(3) above.
(c) When additional relevant information is obtained after a report under this section is submitted, the LPG operator or landfill gas operator shall make a supplementary report to the department conveying this information.