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SAN JOAQUIN LOCAL HEP,I,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 deppth not be exceed 2 - 4 feet. If contamination <br />is documented <br />Sduring closure <br />l osuthin re�ays.Unauthornzed Relea a notification must be filled out and <br />subritted <br />JLHD <br />WATER IS PRESENT IN TANK PIT <br />TANK SIZE <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 <br />ONE <br />per tank <br />Center and ends or sides <br />Fill or pump end of tank <br />1000 - <br />10,000 gallons <br />TWO <br />per tank <br />Ends and Middle and <br />One at each end of tank <br />10,001 <br />gallons and up <br />THREE <br />per <br />OR MORE <br />tankgeneral]• <br />length of the <br />Ends and Middle or <br />spaced along <br />GREATER THAN <br />From wall next to <br />ONE <br />the length of the tank <br />Piping <br />tank ends at soil/ <br />ONE <br />_- <br />EVERY 20 LINEAL FEET <br />WATER IS PRESENT IN TANK PIT <br />TANK SIZE <br />MINIMUM NO. OF <br />SOIL SAMPLES <br />LOCATION OF SOIL <br />SAMPLES <br />MINIMUM NUMBER <br />OF WATER SAMPLES <br />10,000 GALLONS <br />Center and ends or sides <br />From wall next to <br />FIVE per tank <br />OR LESS <br />10,001 gallons and up <br />ends at soil/ <br />Ends and Middle and <br />(Single Tank) <br />TWO <br />gtank <br />ONE <br />length of the <br />intecfaceer <br />GREATER THAN <br />From wall next to <br />ONE <br />10,000 GALLONS <br />tank ends at soil/ <br />ORgroundwater <br />TANK CLUSTER <br />FOUR <br />interface <br />OTHER S PEC I AL CONO I T I ON S <br />SLAB PRESENT IN TANK PIT <br />Soil samples shall be obtained beneath the slab within native soils. Penetration through <br />the obstruction will be required in order to collect the samples. (Physical removal of the <br />obstruction will then allow sampling according to the above conditions.] <br />TANK SIZE <br />MINIMUM NUMBER OF <br />SOIL SAMPLES <br />LOCATION OF SOIL SAMPLES <br />Less than 1000 gallons <br />THREE per tank <br />Center and ends or sides <br />1000 - 10,000 gallons <br />FIVE per tank <br />Center and ends or sides <br />10,001 gallons and up <br />FIVE OR MORE per <br />Ends and Middle and <br />tankgenerally <br />spaced along <br />?he tank <br />length of the <br />EH 23 047 1y/88 <br />REVISED 1/89 <br />