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SAMPLINO `OTOCOL FOR ROIIfINE TANK REM' 'ALS <br /> The following represents minimum sampling crilerion reciubcd for closure compliance. Soil samples collected shall be <br /> representative of native soils beneath the lank's Invest (lank's brmom) at a collection depth not to exceed 2 - 4 feel. If <br /> contamination Is dormmenlcd during closure, an tlnauthorimA Release Notification must be completed and submitted <br /> within five (5) working days pursuant to Callfornla I lealth & Safety Code, Section 25295. <br /> WA'I'FR •TUT PRFSFN1' IN 7IIE TANK 1'lr <br /> TANK 'TANK SIZE MINIMUM NUMDER LOCA'IION Of SOIL SAMPLES <br /> # (Gallons) of SOIL SAMPL[S <br /> < I,0(X) 1 per Tank fill Olt Pump End of Tank <br /> 2 <br /> a� L1,01ri1 - 10,0!10 2 per Tank I at each End of Tank <br /> > 10AX) J or More Ends and Middle Olt generally <br /> Per 'Tank spaml along the length of lhe 'Tank <br /> PIPING AND STOCKPILE <br /> PIPINO SOIL SAMPLES 1 Sample every 20 lineal feel <br /> TANK & PIPINO S'T'OCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> WA'I ER IS 1'RCSF,NT IN TANK I'll' <br /> FANK "TANK SIZE MINIMUM NUMBER I LOCA'T'ION of SOIL I MININIOM NUMIIEIt of <br /> (Gallons) of SOIL SAMPLES SAMPLES WA I Pit SAMPL" <br /> < 10,000 from wall next to lank <br /> Single Tank 2 ends at soil/groundwater I <br /> Interface <br /> > 10,017() OR from wall next to lank <br /> 'lank Cluster 4 ends at soil/ 1 <br /> groundwalcr Interface <br /> SIAII PR SENT IN '1'l1E TANK 1111 <br /> SOIl samples shall be obtained beneath the slab within native soils. Penelrallon Through the obstruction will be rerltdred In <br /> older to collect the samples. (Physical removal of the obstruction will allow sampling according To the above conditions.) <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION of SOIL SAMPLES <br /> N (Gallons) Of SOIL SAMPLES <br /> < 1,1100 J per Tank Center and Ends OR Sides of Tank <br /> t <br /> 1,000 - 1O,(XK) 5 PCFTank Center and Ends OR Sides of'l'ank <br /> > 10,000 5 Olt More per Tank Ends and Middle and generally spaced along <br /> The length of the Tank <br /> Ell 23 047 (Revised 7/10/92) Page 7 <br />