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MAY -07-2009 11:02 Service Station Systems 408 938 8888 P.06 6. UNDER -DISPENSER CONTAINMENT (UDC) TESTING Test Method Developed By: ❑ UDC Manufacturer ® Industry Standard © Professional Engineer ❑ Other (Specify) Test Method Used: ❑ Pressure ❑ Vacuum E Hydrostatic ❑ Other (Specify) Test Equipment Used: Incon Sump Tester Equipment Resolution: +/- 0,002" UDC Manufacturer: Western fiberglass UDC Material, Fiberglass UDC Depth: 31" Height from UDC Bottom to Top of Highest Piping Penetration: 12„ Height from UDC Bottom to Lowest Electrical Penetration: 13" Condition of UDC prior to testing: Good Portion of UDC Tested 2" above piping Does turbine shut down when UDC sensor detects liquid (both product and water)?* ❑ Yes ❑ No E NA Turbine shutdown response time N/A is system programmed for fail- safe shutdown?' C] Yes ❑ No E NA Was fail-safe verified to be o erational?* ❑Yes ❑ No ®NA Wait time between applying pressure/vacuum/water and starting test 30 minutes Test Start Time: 1:08 em Initial Reading (Rt): 5,7863 Test End Time: 1:23 pm Final Reading (Rt): 5.7862 Test Duration: 15 min. Chane in Reading (R` -R,): -0,0001 Pass/Fail Threshold or Criteria: +/-0.002" Test Result: © pass Fail Was sensor removed for testing? ® Yes ❑ No ❑ NA Was sensor properly replaced and verified functional after testing? ® Yes ❑ No ❑ NA Comments — (include information on repairs made prior to testing, and reconunended,follow-up,for,failed. tests) "Sensor functionality was not confirmed. This procedure is not part of the Secondary Containment testing scope of work". Replaced tarn penetration trot ' If the entire depth of the UDC is not tested, specify how much was tested. If the answer to any of the questions indicated with an asterisk (*) is "NO" or "NA", the entire UDC must be tested. (Sec SWRCB LCr-160)