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SWRCB. January 2002 <br />Site: City of Stockton <br />Corp Yard <br />1465 S. Lincoln St. <br />Stockton, CA <br />Date: April 9, 2009 <br />Page 5 of 7 <br />7. UNDER -DISPENSER CONTAINMENT (UDC) TESTING <br />Test Method Developed By: [ ] UDC Manufacturer [X] Industry Standard [ ] Professional Engineer <br />[ ] Other (Specify) <br />Test Method Used: [ ] Pressure [ ] Vacuum IX] Hydrostatic <br />Other (Specify) <br />Test Equipment Used: CALDWELL SYSTEM Equipment Resolution: 0.0025 <br />UDC # ;1/2Reg. <br />UDC # 5/6 Reg. <br />UDC # 3/4 Diesel <br />UDC #7/8 <br />UDC Manufacturer: <br />Environ <br />Environ <br />Environ <br />Environ <br />UDC Material: <br />Poly <br />Poly <br />Poly <br />Poly <br />UDC Depth: <br />12 inch <br />12 inch <br />12 inch <br />12 inch <br />Height from UDC Bottom to <br />Top of Highest Piping <br />Bottom <br />Bottom <br />Bottom <br />Bottom <br />Penetration: <br />Height from UDC Bottom to <br />Lowest Electrical <br />Bottom <br />Bottom <br />Bottom <br />bottom <br />Penetration: <br />Condition of UDC prior to <br />Dry <br />Dry <br />Dry <br />Dry <br />testing: <br />Portion of UDC Tested <br />6 inch <br />6 inch <br />6 inch <br />6 inch <br />Does turbine shut down <br />[ ] YES [ ] NO <br />[ ] YES [ ] NO <br />[ ] YES [ ] NO <br />[ ] YES [ ] NO <br />when UDC sensor detects <br />[X] NA <br />[X] NA <br />[X] NA <br />[X] NA <br />liquid (both product & <br />water)? <br />Turbine shutdown response <br />N/A <br />N/A <br />N/A <br />N/A <br />time: <br />Is system programmed for <br />[ ] YES [ ] NO <br />[ ] YES [ ] NO <br />[ ] YES [ ] NO <br />[ ] YES [ ] NO <br />fail-safe shutdown? <br />[X] NA <br />[X] NA <br />[X] NA <br />[X] NA <br />Was fail-safe verified to be <br />[ ] YES[ ] NO <br />[ ] YES[ ] NO <br />[ ] YES [ ] NO <br />[ ] YES [ ] NO <br />operational? <br />[Xj NA <br />[XI NA <br />[XI NA <br />[X NA <br />Wait time between applying <br />pressure/vacuum/water & <br />5 minutes <br />5 minutes <br />5 minutes <br />5 minutes <br />starting test <br />Test Start Time: <br />2:00 p.m. <br />2:00 p.m. <br />2:30 p.m. <br />2:30 pro <br />Initial Reading 1): <br />6 inch <br />6 inch <br />6 inch <br />6 inch <br />Test End Time: <br />2:30 p.m. <br />2:30 .m. <br />2:30 p.m. <br />2:30 p.m. <br />Final Reading (RO: <br />6 inch <br />6 inch <br />6 inch <br />6 inch <br />Test Duration: <br />30 minutes <br />30 minutes <br />30 minutes <br />30 minutes <br />Change in Reading f -RI) <br />-0- <br />-0- <br />-0- <br />-0- <br />Pass/Fail Threshold or <br />PASS <br />PASS <br />PASS <br />PASS <br />Criteria: <br />Test Result: <br />[XI PASS FAIL <br />1XI PASS I FAIL <br />JXJ PASS I FAIL <br />1XI PASS I I FAIL <br />Was sensor removed for <br />[X] YES [ ] NO <br />[X] YES [ ] NO <br />[X] YES [ ] NO <br />[X] YES [ ] NO <br />testing? <br />N/A <br />N/A <br />] N/A <br />] N/A <br />Was sensor properly replaced <br />[X] YES [ ] NO <br />[X] YES [ ] NO <br />[X] YES [ ] NO <br />[X] YES [ ] NO <br />and verified functional after <br />[ ] N/A <br />[ ] N/A <br />[ ] N/A <br />[ ] N/A <br />test? <br />Comments — (include information on repairs made prior to testing, and recommended follow-up for tailed tests) <br />I If the entire depth of the UDC is not tested, specify how much was tested. If the answer to Any of the questions <br />indicated with an asterisk (*) is "NO" or "NA", the entire sump must be tested. (SWRCB LG -160) <br />