SITE INFORMATION AND CORRESPONDENCE

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CCR, TI'T'LE 23, DIVISION—S, CHAPTER 16, UNDERGROUND STORAGANK REGULATIONS substance collected in the secondary containment; or (3) Hazardous substances, other than those stored in the primary containment system, are added to the secondary containment to treat or neutralize the released hazardous substance and the added substance or resulting substance from such a combination is not compatible with the secondary containment. (d) if a recordable unauthorized release becomes a reportable unauthorized release due to initially unanticipated facts (e.g., secondary containment is breached due to deterioration), the release shall be reported pursuant to section 2652. (e) Whenever the local agency reviews the operator's monitoring reports and fends that one or more recordable unauthorized releases have occurred, the local agency shall review the information included in the monitoring records pursuant to subsection (a), shall review the permit, and may inspect the underground storage tank pursuant to sections 2712(e) and (f) of Article 10. If the local agency finds that the containment and monitoring requirements of Articles 3 or 4 can no longer be met, the local agency shall require the owner or operator to cease operation of the underground storage tank system until appropriate modifications are made to comply with the requirements of Articles 3 or 4, as appropriate. Authority: Health and Safety Code 25299.3, 25299.7 Reference: Health and Safety Code 25291, 25292, 25294, 25295; 40 CFR 280.52 2652. Reporting, Investigation, and Initial Response Requirements for Unauthorized Releases (a) Owners or operators required under section 2650 to report a release or condition, shall comply with the requirements of this section. (b) Within 24 hours after an unauthorized release or condition has been detected, or should have been detected, the owner or operator shall notify the local agency and shall investigate the condition, and take immediate measures to stop the release. If necessary, or if required by the local agency, the owner or operator shall remove the remaining stored substance from the tank to prevent further releases to the environment or to facilitate corrective action. If an emergency exists, the owner or operator shall also notify the State Office of Emergency Services. (c) Within five working days of detecting an unauthorized release, the owner or operator shall submit to the local agency a full written report which shall include but not be limited to all of the following information to the extent that the information is known at the time of filing the report: 5 - 3