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SWRCB, January 2002 Page 2 of 5 4. TANK ANNULAR TESTING Test Method Developed By: O Tank Manufacturer.O O Other (Specify) Industry Standard O Professional Engineer Test Method Used: O Pressure O Other (Specify) OO Vacuum O Hydrostatic Test Equipment Used. 4-1/2 VACUUM GAUGE JEquipment Resolution: +/_ 0.250/6 Accuracy Tank # TCY1 Tank # TCY7 Tank # TCY2 Tank # Is Tank Exempt From Testing? ❑ Yes N No N Yes ❑ No N Yes ❑ No ❑ Yes ❑ No Tank Capacity: 10000 1000 10000 Tank Material: DW FRP DWF DWF Tank Manufacturer. Product Stored: Antifreeze Gear Oil Motor Oil Waft time between applying pressure/vacuum/water and stating test: 10 min. Test Start Time. 2:40 Initial Reading (R,) -10 Test End Time. 3:40 Final Reading (RF) -10 Test Duration: 60 min. Change in Reading (R, -R,) 0 Pass/Fail Threshold or Criteria: +/-011 Test Results: N Pass ❑ Fail ❑ Pass ❑ Fail ❑ Pass ❑ Fail ❑ Pass ❑ Fail Was sensor removed for testing? R Yes ❑ No ❑ NA ❑ Yes ❑ No RNA ❑ Yes ❑ No RNA ❑ Yes ❑ No ❑ NA Was sensor properly replaced and verified functional after testing? R Yes ❑ No ❑ NA ❑ Yes ❑ No R NA ❑ Yes ❑ No R NA ❑ Yes [IND ❑ NA Comments - (include information on repairs made prior to testing, and recommended follow-up failed tests) TCX7..&..T.CX2.are..exem.ptn... !ai..tan.k..annular.s........................................ .................................... ............ ............................. 1 Secondary containment systems where the continous monitoring automatically monitors both the primary and secondary containment, such as systems that are hydrostatically monitored or under constant vacuum, are exempt from periodic containment testing. {Califomia Code of Regulations Title 23 Section 2637(a)(6))