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SAN OOAQUIN LOCAL. "H:2 T TH DI STE2I CT <br />SAMPLING PROTOCAL FOR ROU'T'INE 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 <br />Less than 1000 gallons <br />1000 - 10,000 gallons <br />10,001 gallons and up <br />Piping <br />MINIMUM NUMBER OF <br />SOIL SAMPLES <br />ONE per tank <br />TWO per tank <br />THREE OR MORE <br />per tank <br />Q <br />LOCATION OF SOIL SAMPLES <br />Fill or pump end of tank <br />One at each end of tank <br />Ends and Middle or <br />generall spaced along <br />ttie length of the tank <br />EVERY 20 LINEAL FEET <br />WATER IS PRESENT IN TANK PIT <br />TANKSIZE <br />10,000 GALLONS <br />OR LESS <br />MINIMUM NO. OF <br />SOIL SAMPLES <br />LOCATION OF SOIL <br />SAMPLES <br />MINIMUM NUMBER <br />OF WAVER SAMPLES <br />From wall next to <br />(Single Tank) <br />TWO <br />tank ends at soil/ <br />grouruiwater <br />ONE <br />interface <br />GREATER THAN <br />10,000 GALLONS <br />From wall next to <br />ONE <br />OR <br />tank ends at soil/ <br />TANK CLUSTER <br />groundwater <br />groundwater interface <br />0'rH _ a SPECIAL CONDITIONS ` <br />SLAB PRESENT IN TANK PIT <br />the Soil samples shall be obtained beneath the slab within native soils. Penetration through <br />till requirein <br />obstrructionwillwthenballow samplingoaccordingotoethetabovemcconditionhe saples. s (Physical removal of the <br />TANK SIZE <br />Less than 1000 gallons <br />1000 - 10,000 gallons <br />10,001 gallons and up <br />EN 23 047 12/88 <br />REVISED 1/89 <br />MINIMUM NUMBER OF <br />SOIL SAMPLES <br />THREE per tank — <br />FIVE per tank <br />FIVE OR MORE per <br />tank <br />LOCATION OF SOIL SAMPLES <br />Center and ends or sides <br />Center and ends or sides <br />Ends and Middle and <br />generally spaced along <br />the lenUyh of the tank <br />