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i <br /> SAMI'LINOROTOCOL FOR ROUTINE TANK REM01VALS <br /> 'I lie following represents ndulounn sampling criterion required for closure compliance. Soii,samples collected shall be <br /> represenlntive of native soils beneath the tank's Invert (tank's bottom) at a collection depth not to exceed 2 - 4 feet. If <br /> contamination Is documented during closure, nn Unauthorized Release Noorcntion must be completed and submitted <br /> within five (5) working days pursuant to California Health & Safety Code, Section 25295. <br /> WATrttINur 11Itr,SEN'1' IN THE TANK PIT <br /> I <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION OF SOIL SAMPLES <br /> 4 (Onllons) of SOIL SAMPLES <br /> < I,tXX) I per Tank FIII OR Pump End of Tank � <br /> I,IXlO - 10,llUB 2 per 'Tank t at each End of Tank <br /> > 10,()(10 3 or More Ends and Middle OR generally <br /> per Tank spaced along the length of the Tank <br /> PIPING AND STOCKPILE <br /> PIPINO SOIL SAMPLES 1 Sample every 20 lineal feet <br /> TANK At PIPINO STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> WATrit IS PRlssrNT IN TANK PIT <br /> "TANK TANK SIZE MINIMUM NUMBER LOCATION of SOIL MINIMUM NUMBER of <br /> N (Onllons) of SOIL SAMPLES SAMPLES WATER SAMPLES j <br /> i <br /> < 10,1)(AI From wall next to tank <br /> Single Tank 2 ends at soil/groundwater 1 <br /> interface <br /> > WAX) OR From wall next to lank <br /> 'Yank Cluster 4 ends at soil/ 1 <br /> groundwater Interface <br /> SLAB PRrsrNT IN THE TANK PIT <br /> Solt samples shall be 0onlned benc101 the slab within native lolls. Penetration through the obstruction will be required In <br /> older to collect the samples. (Physical removal of the obstruction wilf allow smupling according to the above condWons.) <br /> TANK 'TANK SIZE MINIMUM NUMBER LOCATION of SOIL SAMPLES, <br /> >y (Onllone) of SOIL SAMPLES <br /> < 1,(XX) 3 per Tank Center and Ends OR Sides of Tank <br /> i <br /> 1,(1(X) - 1(),()(X) 5 per Tank Center and Ends OR Sides of Tank j <br /> i <br /> > t0,(XX) 5 OR 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 /> I <br />