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FEB -25-2011 15:47 Service Station Systems 408 938 8888 P.04 'fest Method Developed By: ❑ Tank Manufacturer ® Industry Standard ❑ Professional Engineer E) Other (Spec) Test Method Used: ❑ Pressure ® Vacuum ❑ Hydrostatic ❑ Other (Specify) Test Equipment Used: Test plugs, venturi pump and gauges Tank # 87 Tank 0 89 Equipment Resolution: 0.5% of span Tank # 91 Is Tank Exempt From Testing?' ® Yes 0 No ❑ Yes 0 No ❑ Yes 0 No Tank Capacity: 12k 12k 12k Tank Material: Fiberglass Fiberglass Fiberglass Tank Manufacturer: Owens Corning Owens Corning Owens Corning Product Stored: Gasoline Gasoline Gasoline Wait time between applying pressure/vacuum/water and starting test: 10 rein 10 min 10 min Test Start Time: 8:30 am 8:30 am 11:20 am Initial Reading (R,): 7" lig 7" hg 7" hg Test End Time: 9:30 am 9:30 am 12:20 pm Final Reading (RF): 7" hg 7" hg 7" hg Test Duration: I hour i hour 1 hour Change in Reading (RF -RI): None None None Pass/Fail Threshold or Criteria. No Detectable Loss No Detectable Loss No Detectable Loss Test Result: 10 Pass Q Fail ® Pass 0 Fail ® Pass ❑ Fail Was sensor removed for testing? ® Yes ❑ No ❑ NA ® Yes ❑ No ❑ NA ® Yes ❑ No ❑ NA Was sensor properly replaced and verified functional after testin ? ®Yes p No [3 NA ®Yes E] No E] NA ®Yes p No ❑ NA Comments —(include information on repairs made prior to testing, and recommended follow-up for failed tests) "Sensor functionality was not confirmed. This procedure is not part of the Secondary Containment testing scope of work". 1 Secondary containment systems where the continuous monitoring automatically monitors both the primary and secondary containment, such as systems that are hydrostatically monitored or under constant vacuum, are exempt from periodic containment testing. {California Code of Regulations, Title 23, Section 2637(x)(6))