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S AN J OAQU I N LOCAL HEALTH D I S TR I CT <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 - 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 /> -- - --...- — -- -.._.._....-...__..__...._....._._..._................ <br /> ......._.__.._. ..... ------ ----- -- <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 /> 1000 - 10,000 gallons TWO per tank One at eaych end of tank <br /> 10,001 gallons and up per tank <br /> MORE thele gyhspacof ed along <br /> nk <br /> iping ONE EVERY 20 LINEAL FEET <br /> WATER IS PRESENT IN TANK PIT <br /> -._.._..__....._....----_..._._. --- <br /> TANK SIZE MINIMUM NO. OF LOCATION OF SOIL MINIMUM NUMBER <br /> SOIL SAMPLES SAMPLES OF WATER SAMPLES <br /> 10,000 GALLONS From wall—next to <br /> OR LESS tank ends at soil/ <br /> (Single Tank) TWO groundwater ONE <br /> interface <br /> GREATER THAN From wall next to ONE <br /> 10,000 GALLONS tank ends at soil/ <br /> OR groundwater <br /> TANK CLUSTER FOUR interface <br /> OTHER S PEC I AL CONDITIONS <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 /> --------------_... --- ......_.... -......__._..--- - -- — --- — ---- --- <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 /> tankgenerally spaced along <br /> the length of the tank <br /> EH 23 047 12/88 <br /> REVISED 1/89 <br />