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SALv JOAQU2 N LO COAL HEALTH DISTRICT SAMPLING PROTOCAL FOR ROUTINE TANK VALS :!am following represents minimum sampling criterion required for closure co samples collected shall be representative of native soils beneath the tank 's invert (tank 's bottom) at a collection depth not be exceed 2 compliance. Soil is documented during closure an Unauthorized Release notification must contamination submitted to SJLHD vi thin 5 6a s. � Eec.t If contamination Y Section 2652, CCR. out and WATER NOT PRESENT IN THE TANK PIT TAMC SIZE MINIMUM NUMBER OF SOIL SA &LES LOCATION OF SOIL SAMPLES Fss- han 1000 gallons ONE per tank Fill or pump end of tank 10,000 gallonsTWO per tank One at each end of tank gallons and up THRE anOkR MORE Ends and Middle or per < enerallyy spaced along Piping he lengEh of the tank —ONE EVERY 20 LINEAL FEET WATER IS PRESENT IN TANK PIT TANK SIZE MINIMUM NO.yOF ��~~r---- __ SOIL SAMPLES LOCATION OF SOIL MINIMUM NUMBER_----------_ SAMPLES OF WATER SAMPLES 10,000 GALLONS -'—�— From wall. next to- -- aR LESS -- (Single Tank) .I.WO lank ends at soil/ groundwater ONE .interface GREATER THAN 10,000 GALLONS From wall next to ONE tank entis at soil/ TANK CLUSTER FOClR groundwater .interface OTHER SPECIAL, GOND I T I ON S i Soil samples shall he obtained SLAB PRESENT IN TAMC PIT the obstruction will be required in order to collect the samples.Heath the slab within native soils. Penetration throu h obstruction will then ..illow sampling according to the above conditions. ) 9 z -_---� P (Physical removal of the TANK SIZE MINIMUM NUMBMj Op ^LOCATION OF SOIL SAMPLES _- _ SOIL SAMPLES Less than 1000 gallons THROE Ear tank Center and nds or sides 1000 - 10,000 gallons FIVE per tank Center and nds or sides 10,001 gallons and up FIVE OR MORE tank Per Ends and Middle and generally sicced along (;he lengl h of the tank EH 23 047 12/88 — REVISED 1/89