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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 Level Change Indicator Equipment Resolution: .002 UDC#1&2 UDC#3&4 UDC#5&6 UDC#7&8 UDC Manufacturer: Bravo Bravo Bravo Bravo UDC Material: Coated Steel Coated Steel Coated Steel Coated Steel UDC Depth: 10" 10" 10" 10" Height from UDC Bottom to Top Enters from bottom Enters from bottom Enters from bottom Enters from bottom of Highest Piping Penetration: Height from UDC Bottom to Enters from bottom Enters from bottom Enters from bottom Enters from bottom Lowest Electrical Penetration: Condition of UDC prior to *Gasoline present Dry Dry Dry testing: See comments below Portion of UDC Tested' Water Level 7" Water Level 7" Water Level 7" Water Level 7" Does turbine shut down when UDC sensor detects liquid(both Yes Yes Yes Yes product and water)?* Turbine shutdown response time Not Alarmed Not Alarmed Not Alarmed Not Alarmed Is system programmed for fail- Yes Yes Yes Yes safe shutdown?* Was fail-safe verified to be No No No No operational?* Wait time between applying 5 Minutes 5 Minutes 5 Minutes 5 Minutes water and starting test Test Start Time: 11:47 11:49 12:04 11:52 Initial Reading(Ri): .001 .001 .001 .001 Test End Time: 12:17 12:19 12:34 12:22 Final Reading(RF): .001 .001 .001 .001 Test Duration: 30 Minutes 30 Minutes 30 Minutes 30 Minutes Change in Reading(RF-RI): 0 0 0 0 Pass/Fail Threshold or Criteria: .005/30 Minutes .005/30 Minutes .005/30Minutes .005/30 Minutes Test Result: Pass Pass Pass Pass Was sensor removed for testing? Yes Yes Yes Yes Was sensor properly replaced and Yes Yes Yes Yes verified functional after testing? Comments— (include information on repairs made prior to testing, and recommended follow-up for failed tests) *Small amount of Gasoline present in UDC#1&2. Found a consistent drip in Filter Housing Gasket. Informed Site operator of condition and placed Dispenser#1&2 out of service pending repair. Wiped out small amount of gas from UDC#1&2 and performed Hydrostatic Testing of UDC#1&2 per scheduled, Routine Tri Annual Secondary Containment Testing. UDC#1&2 passed the Hydrostatic Test. See Test Data and Test Results listed above. ' 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. (See SWRCB LG-160)