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FEB-25-2011 15:36 Service Station Systems 408 938 8888 P.04 <br /> 4. TANK ANNULAR TESTING <br /> Test Method Developed By: ❑Tank Manufacturer ® Industry Standard ❑ Professional Engineer <br /> El Other(Specify) <br /> Test Method Used; ❑Pressure ®Vacuum 0 Hydrostatic <br /> 0 Other(Specify) <br /> Test Equipment Used: Test plugs, venturi puntp and gauges Equipment Resolution: 0.5% of span <br /> I <br /> Tank#87 Tank#89 Tank#91 <br /> Is Tank Exempt From Testing? ❑ Yes ®No ❑ Yes ®No i El Yes 21 No <br /> Tank Capacity: 12k 12k 12k <br /> Tank Material: Fiberglass Fiberglass I Fiberglass <br /> Tank Manufacturer: Owens Corning Owens Corning Owens Corning <br /> Product Stored: Gasoline Gasoline Gasoline <br /> Wait time between applying j <br /> pressure/vacuum/water and 10 min 10 min 10 min <br /> starting test: <br /> Test Start Time: 7:30 am 7:56 am 9:15 am <br /> Initial Reading(Rt): 7"hg 7"hg 7"hg <br /> 'fest End Thne: 8:30 am 8:56 am 10:15 am <br /> Final Reading(RF): 7" hg 7"hg 7"ha <br /> 'fest Duration: 1 hour I hour I hour <br /> Change in Reading(Rr•R,): Nona Nonc None <br /> Pass/Fail Threshold or Criteria: No Detectable Loss No Detectable Loss No Detectable Loss ._. <br /> Test Result; © Pass 0 Fail ® Pass C Fail ® Pass 0 Fail <br /> Was sensor removed for testing? E]Yes ® No [I NA ©Yes® No El NA ©Yes® No ❑NA <br /> Was sensor properly replaced and dyes [] No NA [JYes L:] No NA ❑Yes ❑No ®NA <br /> verified functional after testing? <br /> Comments— (include information on repairs made prior to testing, aJid recommended follow-up for failed tests) <br /> "Sensor functionality was not confirtned.This procedure is not part of the Secondary Containment testing scope of work", <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)' <br />