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1 <br /> f 1 <br /> SAN JOAQUI N LOCAL HEALTH D I S TR I CT <br /> SAMPLING PROTOCOL 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 - 9 feet. If contamination <br /> Is documented <br /> cumenedSduring closureLys.Unauthornzed Release notification must be filled out and <br /> submittedt <br /> WATER NOT PRESENT IN THE TANK PIT <br /> TANK SIZE MINIMUM NUMBER TF <br /> OCATION OF SOIL SAMPLES <br /> SOIL SAMPLES_ <br /> Less than 1000 gallons ONE per tankill or pump end of tank <br /> 1000 - 10,000 gallons TWO per tankne at each end of tank <br /> 10,001 g <br /> allons and up THREE OR MOREnds and Middle or <br /> per tank enerall spaced along <br /> the leng�h of the tankPipingONE EVERY 20 LINEAL FEET <br /> IS PRESENT IN TANK PIT <br /> TANK SIZE MINIMUM <br /> SAMPLESOF <br /> F LOCATION <br /> SAMPLES SOIL MINIMUM <br /> SAMPLES <br /> 10,000 GALLONS From wall next to <br /> OR LESS tank ends at soil/ ONE <br /> (Single Tank) TWOgroundwater <br /> interface <br /> GREATER THAN From wall next to ONE <br /> 10,0009 tank ends at soil/ <br /> OR roundwater <br /> TANK CLUSTER FOUR interface <br /> OTHER S PEC I AL CONDITION S <br /> SLAB PRESENT IN TANK PIT <br /> Soil samples shall be obtained beneath the slab within native soils. Penetration through <br /> obstruucctiontwillwthenallow sampling according to to collect <br /> the abohe vemcconditions[Physical removal of the <br /> TANK SIZE MINIMUM SNEER OF LOCATION OF SOIL SAMPLES <br /> OILLess 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 MORE per Ends and Middle and <br /> Ke <br /> spaced along <br /> the length of the tank <br /> EH 23 <br /> REVISED 91/8 /88 <br /> 9 <br />