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CAPACITY 12000 g PRECISION UNDERGROUND TANK TESTING RESULTS Patent Pending <br />TANK # Diesel PAGE 4 <br />STAT # 4409 TEST PROCEDURES <br />TEST DATE: 06/26/91 Copyright 1985 <br />NDE TECHNOLOGY, INC. PROPRIETARY <br />1. (a) THE UNDERGROUND STORAGE TANK SYSTEM CERTIFIED 'TIGHT AT PRODUCT <br />HEIGHT EQUAL. TO THE GRADE LEVEL. Yes. <br />(b) Allowable leak resolution of instrumentation or allowable change <br />per California Administrative Code Title 23 Waters, Chapter 3 <br />Water Resources Control Heard Subchapter 16 Underground Storage <br />Regulations, Part. 2643 (b), Page 4.14; 0.05 gallons per hour. <br />*#* (c) MEASURED HOURLY CHANGE: LOSS (+) OR GAIN (-) GALLONS OR <br />NUMERICAL LEAK RATE IS: -10.034 Gal/Hr. <br />---------------------------------------------------------------------- <br />This measurement. is within the legal limits as defined in (b). <br />(See also computer plots or reduced data of leakage rate, Part III) <br />Product level of the storage system at the time of testing: <br />2. Total product level 1.51" <br />3. Fill pipe height <br />from bottom of tank 135" <br />4. Test pipe height <br />from bottom of tank 165" <br />5. Grade level <br />from bottom of tank 139" <br />6. Tank top height from bottom of tank <br />excluding piping, or tank diameter 95" <br />7. Test conduction - <br />total time <br />Time leak rate calculated 2:51 Hours <br />8. Start 0:3:25 <br />9. End 06:17 <br />(See also computer plots or reduced data of leakage rate, Part. III) <br />(Calculated leak rate shall be based on data generated during the <br />second hour of testing) <br />Distance from grade level and/or location at which the test was <br />conducted (tank top level, distance below grade level, distance <br />above grade, etc.) <br />10. Distance from grade level to location <br />test conducted: +12" <br />11. Fluid level where the test was conducted. 'rest Stand <br />12. Does the tank show the presence of vapor pockets? <br />No <br />If yes, was the owner informed of steps that must be taken to <br />release all vapor pockets in order to complete testing? <br />Owners of storage tanks are under a legal obligation to report <br />any leaking tanks to the agency having jurisdiction of the tank <br />test. <br />NDE TECHNOLOGY, INC. PROPRIETARY <br />WATT .INC.. 3131 FAIRHAVEN DRIVE, BAKERSFIELD, CA 93308 (805) 322--9827 <br />