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SAN .70AQUIN LOCAL Hr-.AL.TH DISTRICT <br /> SAMPLING PROTOCAL FOR ROUTINE TANK REMOVALS <br /> The following represents minimum sampling criterion required for closure compliance. Soil <br /> samples collected shall be representative of native soils beneath the tank's <br /> invert (tank's bottom) at a collection depth not be exceed 2 - 9 feet. if contamination <br /> is documented during closure, an Unauthorized Release notification must be filled out and <br /> submitted to SJLHD within 5 days. Section 2652, CCR. <br /> WATER NOT PRESENT IN THE TANK PIT <br /> TANK SIZE MINIMUM NUMBER OF LOCATION OF SOIL SAMPLES <br /> _SOIL SAMPLES <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 tankgeneral] spaced along <br /> the length of the tank <br /> Piping ONE EVERY 20 LINEAL FEET <br /> WATER IS PRESENT IN TANK PIT <br /> FOO.RRESS <br /> IZE MINIMUM NO. OF LOCATION OF SOIL MINIMUM NUMBER <br /> SOIL SAMPLES SAMPLES OFWATER SAMPLES <br /> ALLONSFrom wall next to <br /> Tank) TWO grourviwatert soil/ ONE <br /> interface <br /> CTLHAN From wall next to ONE <br /> 10,000 tank ends at soilOR / <br /> TANK CLUSTER groundwater <br /> FOUR interface <br /> OTHER S PEC I AL COND I T I ONS <br /> SLAB PRESENT IN TANK PIT <br /> Soil samples shall be obtained beneath the slab within native soils. Penetration through <br /> the Obstructiontwillwill thenballow sampling acuired in cordingr to otoethethe abovemconditionsssjcal removal of the <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 /> tank enerally spaced along <br /> Ne length of the tank <br /> EH 23 097 12/88 _---�--_ <br /> REVISED 1/89 <br />