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UCSB04N—SS#2611194 Page 2 of 7 <br /> 4. TANK ANNULAR TESTING <br /> Test Method Developed By: ❑Tank Manufacturer ® Industry Standard ❑Professional Engineer <br /> ❑ Other(Specify) <br /> Test Method Used: ❑Pressure ®Vacuum ❑Hydrostatic <br /> ❑ Other(Specify) <br /> Test Equipment Used:4"DUAL GAUGE(VAC) Equipment Resolution: <br /> Tank#87 Tank#89 Tank#91 Tank#W/O <br /> Is Tank Exempt From Testing?' ❑ Yes ®No ❑Yes ®No ❑Yes ®No ❑Yes ®No <br /> Tank Capacity: 12,000 10,000 10,000 500 <br /> Tank Material: FIBERGLASS FIBERGLASS FIBERGLASS FIBERGLASS <br /> Tank Manufacturer: OWENS CORNING OWENS CORNING OWENS CORNING OWENS CORNING <br /> Product Stored: 87 89 91 WASTE OIL <br /> Wait time between applying <br /> pressure/vacuum/water and 15 MINUTES 15 MINUTES 15 MINUTES 15 MINUTES <br /> starting test: <br /> Test Start Time: 11:00 11:00 11:00 11:30 <br /> Initial Reading(RI): 10 Hg 10 Hg 10 Hg 10 Hg <br /> Test End Time: 12:00 12:00 12:00 12:30 <br /> Final Reading(RF): 10 Hg 10 Hg 10 Hg 10 Hg <br /> Test Duration: 1 HOUR 1 HOUR 1 HOUR 1 HOUR <br /> Change in Reading(RF-RI): 0 0 0 0 <br /> Pass/Fail Threshold or Criteria: 0 0 0 0 <br /> Test Result: R Pass ❑Fail 0 Pass ❑Fail ® Pass [],,Fail ® Pass ❑Fail <br /> Was sensor removed for testing? ❑Yes ®No ❑NA ❑Yes ®No ❑NA ❑Yes ®No❑NA ❑Yes ®No ❑NA <br /> Was sensor properly replaced and <br /> ® <br /> verified functional after testing? Yes El No El NA ®Yes El No F1 NA ®Yes El No❑NA ®Yes El No ❑NA <br /> Comments—(include information on repairs made prior to testing, and recommended follow-up for failed tests) <br /> ' Secondary containment systems where the continuous monitoring automatically monitors both the primary and secondary <br /> containment, such as systems that are hydrostatically monitored or under constant vacuum,are exempt from periodic containment <br /> testing. (California Code of Regulations,Title 23, Section 2637(a)(6)1 <br />