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SWRCB, January 2002 7. UNDER -DISPENSER CONTAINMENT (UDC) TESTING Page 5 of 7 Test Method Developed By: U UDC Manufacturer XJ Industry Standard U Professional Engineer U Other (Specify) Test Method Used: U Pressure U Vacuum KJ Hydrostatic U Other (Specify) st Equipment Used: Caldwell Equipment Resolution: iUDC# at 1 UDC#Dis 1 &2 UDC# Sat2&3 UDC#Disp3&4 UDC Manufacturer: Environ Environ Environ Environ UDC Material: Plastic Plastic Plastic Plastic UDC Depth: " 24" 24" 24" Height from UDC Bottom to Top of Highest Piping Penetration: 8" 12" 10" 10" Height from UDC Bottom to Lowest Electrical Penetration: Bottom Bottom Bottom Bottom Condition of UDC prior to testing: Portion of UDC Tested' loll- 1 4" 1211- 1211 - 2"Does Does turbine shut down when UDC sensor detects either product or water'?* LXYes U No U NA 4siYes U No U NA XLIYes U No U NA INYes U No U NA Turbine shutdown response timeseconds 3 seconds 3 seconds Is system programmed for fail- safe shutdown?* LXYes U No U NA l� Yes U No U NA t;KYes U No U NA IXYes U No U NA Was fail-safe verified to be operational?* LXYes U No U NA D Wes UNo U NA IXYes U No U NA XYes U No U NA Wait time between applying pressure/vacuum/water and startingtest i a hr. 2 hr . z hr . t 2 hr. . Test Start Time: 9: 4 5 9:45 9: 4 5 9:45 Initial Reading (R,): Test End Time: 10:1 5 1 0: 1 5 10:1L!,h 10 : 0 8 Final Reading (Rl,): -.0425 Test Duration: hr. t— hr. 2 minutes Change in Reading R., -R,): .0425 Pass/FaiI Threshold or Criteria: 1,27511per hr. Test Result: X Pass U Fall LX Pass U Fall LXPass U Fail U Pass XI Fall Was sensor removed for testing? LXYes LJ No U NA X Yes U No U NA XU Yes U No U NA IXYes U No U NA Was sensor properly replaced and verified functional after testing? LKYes ❑ No ❑ NA Rl Yes U No U NA XLJ Yes U No U NA lXYes U No U NA COMMentS — (include information on repairs made prior to testing, and recommended follow-up forfailed tests) If the testing method does not test the entire depth of the UDC, specify how much of the UDC was tested. Methods not testing the entire UDC should only be used if the monitoring system provides fail-safe turbine shutdown. (See SWRCB LG -160) 2 With the submersible pump running, place the sensor in product (discriminating sensors should also be placed in water). The time between placing the sensor in product and the turbine shutting down is the response time. This should be done if the secondary containment testing method used does not test the entire volume of the UDC This information is not needed if the entire UDC is tested.