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SWRCB,January 2002 Page of 7. UNDER-DISPENSER CONTAINMENT UDC TESTING Test Method Developed By: ❑UDC Manufacturer ❑Industry Standard X Professional Engineer ❑Other(Spec) Test Method Used: ❑Pressure ❑Vacuum X Hydrostatic ❑Other(Spec) Test Equipment Used: Caldwell Systems Equipment Resolution: .005/30 min UDC# lA UDC# 1-2 UDC#2A-3A UDC#3-4 UDC Manufacturer: Unknown Unknown Unknown Unknown UDC Material: Fiberglass Fiberglass Fiberglass Fiberglass UDC Depth: 38" 38" 38" 38" Height from UDC Bottom to Top 9" 9" 9" 8" of Highest Piping Penetration: Height from UDC Bottom to 8" 7" 7" 6" Lowest Electrical Penetration: Condition of UDC prior to Dry Dry Dry Dry testing: Portion of UDC Tested' 2"above Highest Piping Penetration Does turbine shut down when UDC sensor detects liquid(both x Yes ❑No ❑NA x Yes ❑No ❑NA x Yes ❑No ❑NA x Yes ❑No ❑NA product and water)?* Turbine shutdown response time Is system programmed for fail- x Yes ❑No ❑NA x Yes ❑No ❑NA x Yes ❑No ❑NA x Yes ❑No ❑NA safe shutdown? Was fail-safe verified to be ❑Yes x No ❑NA ❑Yes x No ❑NA ❑Yes x No ❑NA ❑Yes x No ❑NA operational?* Wait time between applying pressure/vacuum/water and 5 min 5 min 5 min 5 min starting test Test Start Time: 10:20 11:35 9:40 9:25 Initial Reading(RI): 00" .00" .00" .00" Test End Time: 10:50 12:05 10:10 9:55 Final Reading(RF): .00 .00 .00 .00 Test Duration: 30 min 30 min 30 min 30 min Change in Reading(RF-RI): .00 .00 .00 .00 Pass/Fail Threshold or Criteria: .005/30 min .005/30 min .005/30 min .005/30 min Test Result: x Pass ❑Fail x Pass ❑Fail x Pass ❑Fail x Pass ❑Fail Was sensor removed for testing? x Yes ❑No ❑NA x Yes ❑No ❑NA x Yes ❑No ❑NA x Yes ❑No ❑NA Was sensor properly replaced and x Yes ❑No ❑NA x Yes ❑No ❑NA x Yes ❑No ❑NA x Yes ❑No ❑NA verified functional after testing? Comments— (include information on repairs made prior to testing, and recommended follow-up for failed tests) 'If the entire depth of the UDC is not tested,specify how much was tested. If the answer to aM of the questions indicated with an asterisk(*)is"NO"or"NA",the entire UDC must be tested. (See SWRCB LG-160)