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SA N J O A Q U I N Environmental Health Department COUNTY ADDITIONAL HAZARDOUS SUBSTANCE REQUIREMENTS: 9. If the removed backfill material and soil is found to be contaminated it must be disposed of at an approved disposal location. A complete hazardous waste determination must be made in accordance with CCR Title 22 regulations prior to disposal. Treatment of soil on site can only be performed under a hazardous waste treatment permit. 10. Any compactable material imported onto the site for the purpose of backfilling must be clean compactable backfill. 11. The discovery of any released hazardous substance at the site of the UST(s) or in the surrounding area, including the presence of free product or vapors, must be recorded in on site records and reported to the EHD in accordance with CCR Title 23 Article 7 release reporting requirements within 24 hours after an unauthorized release or condition has been detected, or should have been detected. SUBMIT WITHIN 30 DAYS OF THE REMOVAL: 12. The following information must be submitted within 30 days of the tank or piping removal date: a. Analytical results: Laboratory reports containing the sample analytical results, chain- of-custody, quality assurance/quality control data, and any commentary or notes from the laboratory. Only sample analytical results that are sent to EHD directly from a third- party California accredited environmental laboratory with affixed chain of custody will be accepted. b. Sampling information: Site maps or drawings identifying the location at the facility, depth below grade and date of collection for each sample taken. c. Boring logs, if applicable. d. Disposal records: Documentation demonstrating proper disposal of the tank(s), piping, and any hazardous wastes generated as a result of closure activities, including: • Hazardous Waste Tank Closure Certification form (DTSC Form 1249) • Hazardous waste manifest(s)for all hazardous wastes generated, including tank(s), piping, rinsate, and residual product • UST Disposition Tracking Record for each tank not hauled using a hazardous waste manifest 13. The owner or operator shall log into the California Environmental Reporting System (CERS) at http://cers.calepa.ca.gov/ and update all applicable data elements within 30 days of removal of the UST from the excavation. RECORDS MAINTENANCE: 14. The owner or operator must maintain the analytical results of all soil and groundwater samples for at least 36 months after the UST system is properly closed. ADDITIONAL BILLING: 15. The permit application included payment for 3 hours of time. Additional time may be required for inspections and review to verify that this UST work complies with all applicable laws and regulations. All EHD staff time spent beyond the prepaid amount will be billed to the applicant at the current EHD hourly rate ($179). 3 of 4