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SWRCB, January 2002 Page of 7. UNDER -DISPENSER CONTAINMENT (UDC) TESTING Test Method Developed By: ❑ UDC Manufacturer ❑ Other (Specify) ❑ Industry Standard X Professional Engineer Test Method Used: ❑ Pressure ❑ Other (Specify) ❑ Vacuum X Hydrostatic Test Equipment Used: Caldwell Level Change Indicator Equipment Resolution: .002 UDC # 1&2 Environ UDC # 3&4 Environ UDC # 5&6 Environ UDC # 7&8 Environ UDC Manufacturer: UDC Material: Poly Plastic Poly Plastic Poly Plastic Poly Plastic UDC De the 27" 27" 27" 27" Height from UDC Bottom to Top of Hi from Pim Penetration: 11" Height from UDC Bottom to Lowest Electrical Penetration: 5" 6" 4" 5" Condition of UDC prior to testing: Dry Dry Dry Dry Portion of UDC Tested Water Lever 15" Water Level 15" Water Level 15" Water Level 15" Does turbine shut down when UDC sensor detects liquid (both product and water)?` X Yes No ❑ NA X Yes No ❑ NA X Yes No ❑ NA X Yes No ❑ NA Turbine shutdown response time Not Alarmed Not Alarmed Not Alarmed Not Alarmed Is system programmed for fail- safe shutdown?* X Yes ❑ No ❑ NA X Yes ❑ No a NA X Yes ❑ No ❑ NA X Yes ❑ No ❑ NA Was fail-safe verified to be operational?* Yes X No ❑ NA ❑ Yes X No ❑ NA ❑ Yes X No ❑ NA ❑ Yes X No ❑ NA Wait time between applying water and starting test 5 Minutes 5 Minutes 5 Minutes 5 Minutes Test Start Time: 12:35 12:40 12:45 12:50 Initial Reading (R,): .001 .001 .001 .001 Test End Time: 1:05 1:10 1:15 1:20 Final Reading (RF): .001 .001 .001 .001 Test Duration: 30 Minutes 30 Minutes 30 Minutes 30 Minutes Change in Reading (RF -R,): 0 0 0 0 Pass/Fail Threshold or Criteria: .005/30 Minutes .005/30 Minutes .005/30 Minutes .005/30 Minutes 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 a No ❑ NA X Yes ❑ No ❑ NA Was sensor properly replaced and verified functional after testing? X Yes ❑ No ❑ NA X Yes ❑ No [INA X Yes ❑ No ❑ NA X Yes ❑ No ❑ NA 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 any of the questions indicated with an asterisk (*) is "NO" or "NA", the entire UDC must be tested. (See SWRCB LG -160)