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09/13/2007 TIM 14155 FAX 0683433 SSC EHD � 0411/012 <br /> SAMPLING PROTOCOL FOR ROUTINE TANK REMOVALS <br /> The followi tg represents minimum sampling criterion required for closure compliance. Soil samples collected shall be representative <br /> of native so-Is beneath rite tank's invert(tank's bottom)at a collection depth not to exceed 2-4 feet. If contamination is documented <br /> during elost re,an Unauthorized Release Notification must be completed and submitted within five(5)working days pursuant to <br /> California Vealtli&Safety Code,Section 25295, <br /> WATER IY-T PRESENT IN THE TANK PIT <br /> TAMC TANK SIZE MINIMUM NUMBER' LOCATION OF SOIL SAMPLES <br /> ti (Gallons) of SOMSAMPLES <br /> <1,000 I per Tank Fill OR Pum End ofTauk <br /> 11000- 10,000 2 per Tank I at each End of Tank <br /> l 3 > 10,000 3 or More Ends and Middle OR generally <br /> per Tank spaced along tine length of the Tank <br /> PIPING AND STOCKPILE <br /> T� PIPING SOIL SAMPLES 1 Sam le cvc 20 lineal feet <br /> { TANK.&PIPING STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> WATER IS PRESENT Inti'TANK PI <br /> TANK TANK,SIZE XENIMUM NUMBER LOCATION of SOIL MINIMUM NUMBER <br /> fI (Gallons) of SOIL SAMPLES SAMPLES of WATER SAMPLES <br /> << 10'000 2 from wall next to tank <br /> Silsgle Tank 3 ends at soil/groundwater f <br /> interface&I balaw tank <br /> > 10,000 OR 4 from wall noxt to lank <br /> TaukCluster ends at softroundwater <br /> S or mare interface& l below each f <br /> tank <br /> SLAB PRESENT IN THE TANK PIT <br /> Soil samples shall be obtained beneath the slab within native soiis. Penetration through the obstruction will be required in order to <br /> collect the samples. (Physical removal of the obsouctiotl will allow sampling according to the above conditions.) <br /> r <br /> 'PANIC SIZE MINIMUM NUMBER LOCATION of SOIL SAMPLES <br /> (Gallons) of SOIL SAMPLES<1000 3 or Tank Center and Ends OlSides of"rank <br /> E,000.10000 5 erTank Center and Ends OR Sidos ofTank <br /> > 10,000 5 Olt MoreperTank Ends and Middle and generally spaced <br /> along(fie length of the Tank <br /> EH 23 046 t Revised I f/21106) 7 <br />