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MAY-16-2008 18: 11 Service Station Systems 408 938 8888 P.04 4. PIPING SUMP TESTING Test Method Developed By: ❑ Sump Manufacturer ® Industry Standard ❑Professional Engineer ❑ Other(Specify) Test Method Used: ❑Pressure ❑vacuum ®Hydrostatic ❑Other(Specify) Test Equipment Used:Incon Sump Tester Equipment Resolution: +/-0.0021+ STP Sump#87 STP Sump#91 STP Sump#DSL Sump Diameter: 49" 50" 511" Sump Depth: 84" 84" 82" Sump Material: Fiberglass Fiberglass Fiberglass Height from Tank Top to Top of 91, 10>+ 13" Highest Piping Penetration: Height from Tank Top to Lowest 43„ 36" 42" Electrical Penetration: Condition of sump prior to testing: Good Good Good Portion of Sump Tested' 2"above piping 2"above piping 2"above piping Does turbine shut down when sump sensor detects liquid(both ❑Yes Cl No ®NA ❑ Yes❑No ®NA ❑Yes❑No ONA product and water)?* Turbine shutdown response time N/A N/A N/A Is system programmed for fail-safe shutdown? ❑Yes❑ No ®NA ❑Yes❑No ®NA ❑Yes ❑No ONA Was fail-safe verified to be operatic, P, ❑ Yes Cl No ®NA ❑Yes❑No ®NA ❑ Yes ❑No ®NA Wait time between applying pressure/vacuum/water and starting 30 minutes 30 minutes 30 minutes test: Test Start Time: 4:25 pm 1:12 pm 2:42 pm Initial Reading(R,): 5.4197 6.7933 3.8376 Test End Time: 4:40 pm 1:27 pm 2:57 pm Final Reading(RF): 4.9766 6.7938 3.8387 Test Duration: 15 min. 15 min. 15 min. Change in Reading(R1:-R,): -0.4431 +0.0005 +0.0011 Pass/Fail Threshold or Criteria: +/.0.002" +/-0.002" 4-0.0021, Test Result: Pass EDFail ® Pass Fail ®Pass Fail Was sensor removed for testing? ®Yes❑No ❑NA ®Yes❑No ❑NA ®Yes❑No Cl NA Was sensor properly replaced and ®Yes El No ❑NA ®Yes❑No ❑NA ®Yes❑No Q NA verified functional after testing'? Comments—(include information on repairs made prior ro testing, and recommended follow-up.tbr ailed tests) "Sensor functionality was not confirmed. This procedure is not part of the Secondary Containment testing scope of work". 91 and DSL STP sumps—replaced both product penetration boots in each sump(4 total)-passed 87 STP sump—replaced(1)product penetration boot,passed test on 4/15/08 —failed with inspector on 4/17/08.Found Leaking hole in other penetration,needs to be replaced will need to remove ATG riser for repair. If the entire depth of the sump 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 sump must be tested. (See SWRCB LG-160)