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SAN 0QAQUI N TIS ESI S'I'RT CT <br /> SAMPLING PRO`I'OCAL 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 - 4 feet• If contamination <br /> is documented <br /> ocumentted tSn5 <br /> eddurinwithclosure <br /> edaan Unauthorized Release notification must he filled out and <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 /> 0 - 10,000 gallons TWO per tank One at each end of tank <br /> ,001 allans and u gern Ends and Middle or <br /> he length of the tanK <br /> �' Piping ONE _.EVERY 20 LINEAL . <br /> WATER IS PRESENT IN -TANK PIT <br /> TANK SIZE_ MINIMUM NO. OF LOCATION OF SOIL MINIMUM NUMBER <br /> SOIL SAMPLES SAMPLES OF WATER SAMPLES <br /> 10,000 GALLONS -= �-s—� From wall next to <br /> OR LESS tank ends at soil/ <br /> (Single Tank) TWO grounndfwatter ONE <br /> intce <br /> GREATER THAN From wail next to ONE <br /> 10,000 GALLONS tank endsat soil/ <br /> OR groundwater <br /> TANK CLUSTER.._ _ ^-..._FOUR inter face- <br /> OTHER SPECIAL C+cDND19710NS <br /> SLAB PRESENT IN TANK PIT <br /> Soil samples shall be obtained beneath the slab within native sails. Penetration throec�h <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 /> ._...__.___.-----._._...__._........._._---.----._.-.._........ <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 thea lengthsoctheatank <br /> EH 23 047 12/88 <br /> REVISED 1/89 <br />