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Apr-23-98 10: 21A GHH Enr -,nearing Inc P.05 <br /> SAStPL1NGIROTOCOL FOR ROUTINE TANK REMOVALS <br /> The following represents minimum sampling criterion required for closure compliance. Soil samples collected shall be <br /> representative of native soils beneath the tank's invert (tank's bottom)at a collection depth not to eccced 2 -4 feet. If <br /> contamination is documented during closure, an Unauthorized Release NOtifliatiOn mutt be completed and submitted within rive <br /> (5) working days pursuant to Calitomia Health& Safety Code. Section 25295. <br /> WATER N(Yr PRESENT Vi TRE TANK PIT <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION OF SOIL SAMPLES <br /> a (Gallons) of SOIL SAMPLES <br /> < 1,000 _ _ 1.-per Tank- - �i)�AR.3Wn _End of Tan}: <br /> 1,000 - 10.000 2 per Tank 1 at each End of Tank <br /> > lO,Ow 3 or More finds and Middle O[t generally <br /> per Tank spaced along the length of the Tank <br /> - - - -- - ---- <br /> r>rLNc .cvn3ToclTu.> - --- ----�� <br /> PIPING SOIL SAMPLES 1 Sample every 20 lineal feet <br /> [� TANK & PIPING STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> WATER IS PRESENT IN TANK PIT - <br /> TANK TANK SIZE.. MINIMUM NUMBER LOCATION of SOIL MINIMUM NUMBLR of <br /> a (Gallons) of SOIL SAMPLESSAMPLES WATER SAMPLES <br /> < 10,000 From wall next to tank <br /> Single Tank 2 ends at soil/ groundwater 1 <br /> interface <br /> > 10,000 OR From wall next to tank <br /> Tank Cluster 4 ends at soil/ <br /> groundwater interfau:e <br /> SLAB PRESENT IN TETE TANK PIT <br /> Sail samples shall be obtained beneath the slab within native soils. Penetration through the obstruction will be required in order <br /> to collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditiors-) <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION of SOIL SAMPLES <br /> ti (Gallons) of SOIL SAMPLES <br /> < 1.0w 3 per Tank Center and Ends OR Sides of Tank <br /> 1.000 - 10.000 5 per Tank Center and Ends OR Sides of Tank <br /> > lO,Ow 5 OR More per Tank Ends and Middle and generally sp:a ed along <br /> the length of the Tank <br /> Ell 23 046 (Revised 9/11/96) Page 7 <br />