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0 <br />0 <br />SAMPLING PROTOCOL FOR ROUTINE TANK REMOVALS <br />The following represents minimum sampling criterion required for closure compliance. Soil samples collected shall 1 <br />of native soils beneath the tank's invert (tank's bottom) at a collection depth not to exceed 2 - 4 feet. If contamination <br />during closure, an Unauthorized Release Notification must be completed and submitted within five (5) working days <br />California Health & Safety Code, Section 25295. <br />WATER NOT PRESENT IN THE TANK PIT <br />PIPING AND STOCKPILE <br />TANK SIZE <br />(Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION OF SOIL SAMPLES <br />TANK <br /># 350 <br />2 Samples every 50 cubic yards <br /><1,000 3->.0 <br />1 per Tank <br />Fill OR Pump End of Tank <br />of WATER SAMPLES <br />1000- 10 000 <br />2 per Tank <br />1 at each End of Tank <br />2 from wall next to tank ends <br />> 10,000 <br />3 or More <br />per Tank <br />Ends and Middle OR generally <br />spaced along the length of the Tank <br />PIPING AND STOCKPILE <br />5 5 /3///7J <br />WATER IS PRESENT IN TANK PIT <br />TANK <br />PIPING SOIL SAMPLES <br />1 Sample eve 20 lineal feet <br />^/M <br />TANK & PIPING STOCKPILE SAMPLES <br />2 Samples every 50 cubic yards <br />5 5 /3///7J <br />WATER IS PRESENT IN TANK PIT <br />TANK <br />TANK SIZE <br />MINIMUM NUMBER <br />LOCATION of SOIL <br />MINIMUM NUMBER <br /># 3S0 <br />(Gallons) <br />of SOIL SAMPLES <br />SAMPLES <br />of WATER SAMPLES <br />< 10,000 <br />2 from wall next to tank ends <br />Single Tank <br />3 <br />at soil/groundwater interface <br />1 <br />& 1 below tank <br />> 10,000 OR <br />4 from wall next to tank ends <br />5 or more <br />at soiVgmundwater interface <br />I <br />Tank Cluster <br />& 1 below each tank <br />SLAB PRESENT IN THE TANK PIT <br />Soil samples shall be obtained beneath the slab within native soils. Penetration through the obstruction will be required in rder to <br />collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br />TANK I TANK SIZE <br /># (Gallons) <br /><1 <br />> 10,000 <br />EH 23 046 (Revised 07/31/08) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />5 OR More per Tank <br />LOCATION of SOIL SAMPLES <br />Ends and Middle and generally <br />along the length of the Tank <br />