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SAN .7021LQ TIN LOCAL F-IEA.L.rrn DIsrmlCT <br /> SAMPLING PROTDCAL FOR ROUTINE TANK REMOVALS <br /> he following represents minimum sampling criterion required for closure compliance. Soil <br /> ,mgles collected shall be representative of native soils beneath the tank's <br /> nvert (tank 's bottom) at a collection depth not be exceed 2 - 9 feet. If contamination <br /> s documented durinq closure an Unauthorized Release notification must be filled out and <br /> abmltted to SJLHD within 5 bays. Section 1652, CCR. <br /> WATER NOT PRESENT IN THF; TANK PIT <br /> TANK SIZE MINIMUM NUMBER OF LOCATION OF SOIL SAMPLES <br /> SOIL SAMPLFSS <br /> Less than 1000 gallons ONE per^tank Fill or pump end of tank <br /> 1000 - 10,000 gallons TWO per tank one at each .end of tank <br /> 10,001 gallons and up THREE OR MORE Ends and Middle or <br /> Per leyysfcthaaghengthoetu <br /> Piping ONE EVERY 20 LINEAL FEET <br /> WATER IS PRESENT IN TANK PIT <br /> TANK SIZE MINIMUM NO. OF LOCATION OF SOIL MINIMUM NUMBER <br /> SOIL SAMPLES SAMPLFS OF WATER SAMPLES <br /> 10,000 GALLONS From wall next to <br /> OR LESS tank ends at soil/ <br /> (Single Tank) TWOoundwater ONE <br /> Interface <br /> ATE( THAN From wall next to ONE <br /> 10,000 GALLONS tank ends.at soil/ <br /> ORgroundwater <br /> TANK CLUSTER FOUR interface <br /> 7`I'HMFZ SPECIAL. C0ND7'r10D4S <br /> SLAB PRESENT IN TANK PIT <br /> oil samples shall be obtained beneath the slab within native soils. Penetration throu h <br /> he obstruction will be required in order to collect the samples . (Physical removal of the <br /> bstruction will then allow sampling according to the above conditions. ) <br /> TANK SIZE MINIMUM NUMBER OF LOCATION OF SOIL SAMPLES <br /> SOIL SAMPLES <br /> Less than 1000 gallons THREE per tank Center and ends or sides <br /> 1000 - 10,000 gallons FIVE per tank Center and ends or sides <br /> 10,001 gallons and up FIVE OR MORE per Ends and Middle and <br /> tankgenerally spaced along <br /> the length of the tank <br /> ,'Ji 23 097 12/88 <br /> tEVISED 1/89 <br />