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SAN .TOAQUIN LOCAL, HEALTH 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 - 4 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 /> C°J Les <br /> ONE <br /> _per tank_ Fill ory pumQ C\ end of tank 1000 - 10,000 gallons TWO per One at eac a of tank <br /> 1 ,O�i—garions and up THREE OR MORE Ends a ie or <br /> per tankgenerallyy spaced along <br /> the length of the tank <br /> Piping ONE EVERY 20 LINEAL FEET <br /> WATER IS PRESENT IN -TANK PIT <br /> FOR <br /> ANK SIZE MINIMUM NO. OF LOCATION OF SOIL MINIMUM NUMBER <br /> �i SOIL SAMPLES SAMPLES OF WATER SAMPLES <br /> J -- SA000 GALLONSFrom wall next to <br /> LESS tank erkJs at soil/ <br /> ngle Tank) TWOground water ONE <br /> �I interface <br /> GREATER THAN From wall next to ONE <br /> OR 10,000 GALLONS tank ends.at soil/ <br /> TANK CLUSTER FOUR r o and wa t e r <br /> interface <br /> OTHER SPECI.AL._ CONDI TI ONS <br /> SLAB PRES04T 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 MINIMUM NUMDM- 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 /> ?he length of the tank <br /> EH 23 047 12/88 4 <br /> REVISED 1/89 <br />