Laserfiche WebLink
CAPACITY 25000 g PRECISION UNDERGROUND TANK TESTING RESULTS Patent Pending <br />TANK # D -67-25K-01 PAGE 4 <br />STAT # N/A TEST PROCEDURES <br />TEST DATE: 4/25/1988 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 Board 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: +0.044 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 186.5" <br />3. Fill pipe height 156.5" <br />from bottom of tank <br />4. Test pipe height 196.5" <br />from bottom of tank <br />5. Grade level 174.5" <br />from bottom of tank <br />6. Tank top height from bottom of tank 143" <br />excluding piping, or tank diameter <br />7. Groundwater level BELOW BOTTOM OF TANK <br />8. Test conduction - <br />total time <br />Time leak rate calculated 1:24 Hours <br />9. Start 11:15 <br />10. End 12:39 <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 />11. Distance from grade level to location <br />test conducted: <br />12. Fluid level where the test was conducted. <br />13. Piping Pressure Test - <br />14. Pneumatic Pressure Data <br />Amount of pressure applied <br />to system: <br />+12" <br />Test Pipe <br />None Pump Used <br />N/A <br />NDE r PROPRIETARY <br />WATT INC. 3131 FAIRHAVEN DRIVE, t CA 93308 (805) 322-9827 <br />