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SWRCB, January 2002 Page of 3. UNDER -DISPENSER CONTAINMENT (UDQ TESTING Test Method Developed By: ❑ UDC Manufacturer ❑ Industry Standard X Professional Engineer ❑ Other (Specify) Test Method Used: ❑ Pressure ❑ Vacuum X Hydrostatic ❑ Other (Specify) Test Equipment Used: Caldwell Level Change Indicator Equipment Resolution: .002 UDC # 1&2 UDC # 3&4 UDC # 5&6 UDC # UDC Manufacturer: Western Fiberglass Western Fiberglass Western Fiberglass UDC Material: Fiberglass Fiberglass Fiberglass UDC Depth: 31" 31" 31" Height from UDC Bottom to Top of Highest Piping Penetration: 11" 11" 11" Height from UDC Bottom to Lowest Electrical Penetration: 5" 6" 16" Condition of UDC prior to testing: Small amount of Small amount of Small amount of Diesel Diesel Diesel Portion of UDC Tested Water Level 13" Water Level 17" Water Level 22" Does turbine shut down when UDC sensor detects liquid (both product and water)?* X Yes ❑ No ❑ NA X Yes []No ❑ NA X Yes ❑ No F. NA Turbine shutdown response time Not Alarmed Not Alarmed Not Alarmed Is system programmed for fail- safe shutdown?* X Yes ❑ No ❑ NA X Yes ❑ No ❑ NA X Yes ❑ No ❑ NA Was fail-safe verified to be operational?* ❑ yes X No INA ❑ Yes X No ❑ NA ❑ Yes X No [a NA Wait time between applying water and starting test 5 Minutes 5 Minutes 5 Minutes Test Start Time: 11:40 11:45 12:25 Initial Reading (Ri): .001 .001 .001 Test End Time: 12:10 12:15 12:55 Final Reading (RF): .001 .001 .001 Test Duration. 30 Minutes 30 Minutes 30 Minutes Change in Reading (RF-Ri): 0 0 0 Pass/Fail Threshold or Criteria: .005/30 Minutes .005/30 Minutes .005/30 Minutes Test Result: X Pass ❑ Fail X Pass ❑ Fail X Pass ❑ Fail ❑ Pass ❑ Fail Was sensor removed for testing? X Yes ❑ No ❑ NA X Yes ❑ No ❑ NA X Yes ❑ No ❑ NA ❑ Yes ❑ No ❑ NA Was sensor properly replaced and X Yes ❑ No [INA X Yes ❑ No ❑ NA X Yes ❑ No ❑ NA ❑ Yes ❑ No ❑ NA verified functional after testin ? Comments — (include information on repairs made prior to testing, and recommended follow-up for failed tests) Wiped out small amount of Diesel from all UDC's Prior to Testing. ' 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)