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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 0 Other(Spec) Test Equipment Used: Caldwell Level Change Indicator Equipment Resolution:.002 UDC#1&2 UDC#3&4 UDC# UDC# UDC Manufacturer: APT APT UDC Material: Poly Plastic Poly Plastic UDC Depth: 33" 33" Height from UDC Bottom to Top 10 %:" 10 %:" of Highest Piping Penetration: Height from UDC Bottom to 9" 12" Lowest Electrical Penetration: Condition of UDC prior to Dry Dry testing: Portion of UDC Tested Water Line 12%s" Water Line 12 %" Does turbine shut down when UDC sensor detects liquid(both X Yes No ❑NA X Yes No ❑NA roduct and water)?* Turbine shutdown response time Not Alarmed Not Alarmed Is system programmed for fail- X Yes LlNo ❑NA X Yes ❑No ❑NA safe shutdown? Was fail-safe verified to be Yes X No ❑NA Yes X No ❑NA operational?* Wait time between applying 5 Minutes 5 Minutes water and starting test Test Start Time: 9:00 9:05 Initial Reading .001 .001 Test End Time: 9:30 9:35 Final Reading(R,): .001 .001 Test Duration: 30 Minutes 30 Minutes Chane in Reading(R,-R,): 0 0 Pass/Fail Threshold or Criteria: .005/30 Minutes .005/30 Minutes Test Result: X Pass ❑Fail X Pass ❑Fail ❑Pass ❑Fail ❑Pass ❑Fail Was sensor removed for testing? X Yes ❑No ❑NA X Yes _I No ❑NA ❑Yes i No NA S:Yes ❑No ❑NA Was sensor properly replaced and X Yes ❑No ❑NA X Yes ❑No [INA ❑Yes ❑No ❑NA ❑Yes ❑No ❑NA verified functional after testing? Comments—(include information on repairs made prior to testing, and recommendedfollow-upforfailed 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)