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Page 4 of 6 6. PIPING SUMP TESTING Test Method Developed By: ❑ Sump Manufacturer X ❑ Professional Engineer ❑ Other (Spec) Test Method Used: ❑ Pressure ❑ Vacuum X Hydrostatic ❑ Other (Spec) Test Equipment Used: INCON TS -STS V2.1 Equipment Resolution: 0.0000" Sump #STP North Sump #STP South Sump Diameter: 42" 42" Sump Depth: 52" 49" Sump Material: fiberglass fiberglass Height from Tank Top to Top of 14" 14" Highest Piping Penetration: Height from Tank Top to Lowest 20" 19" Electrical Penetration: Condition of sump prior to testing: Clean Clean Portion of Sump Tested' 2" Above Highest 2" Above Highest Piping Penetration Piping Penetration Does turbine shut down when sump sensor detects liquid (both X Yes ❑ No ❑ NA X Yes ❑ No ❑ NA product and water)?' Turbine shutdown response time 2 Seconds 2 Seconds Is system programmed for fail-safe X Yes ❑ No ❑ NA shutdown?' X Yes ❑ No ❑ NA Was fail-safe verified to be X Yes ❑ No ❑ NA operational?* X Yes ❑ No ❑ NA Wait time between applying pressure/vacuum/water and starting 15 Minutes 15 Minutes test: Test Start Time: 8:44 / 9:00 9:34 / 9:50 Initial Reading (RI): 4.826 /4.825 3.932 / 3.931 Test End Time: 8:59 / 9:15 9:49 / 10:05 Final Reading (RF): 4.825 / 4.825 3.931 / 3.931 Test Duration: 15 min. each 15 min. each Change in Reading (RF -RI): .001/0 .001/0 Pass/Fail Threshold or Criteria: 0.0020" 0.0020" Test Result: X Pass D Fail X Pass D Fail Was sensor removed for testing? X Yes ❑ No ❑ NA X Yes ❑ No ❑ NA Was sensor properly replaced and X Yes ❑ No ❑ NA verified functional after testin ? 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 sump is not tested, specify how much was tested. If the answer to M of the questions indicated with an asterisk (*) is "NO" or "NA", the entire sump must be tested. (See SWRCB LG -160)