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SAMOG PROTOCOL FOR ROUTINE TANK RJ&VALS <br />The following represents minimum sampling criterion required for closure compliance. Soil samples collected shall be <br />representative of native soils beneath the tank's invert (tank's bottom) at a collection depth not to exceed 2 - 4 feet. If <br />contamination is documented during closure, an Unauthorized Release Notification must be completed and submitted within five <br />(5) working days pursuant to California Health & Safety Code, Section 25295. <br />TANK TANK SIZE <br /># (Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION OF SOIL SAMPLES <br />< 1,000 <br />1 per Tank <br />Fill OR Pump End of Tank <br />1,000 - 10,000 <br />2 per Tank <br />I at each End of Tank <br />> 10,000 <br />3 or More <br />per Tank <br />per <br />Ends and Middle OR generally <br />spaced along the length of the Tank <br />T-1.71 19 f �' If <br />Frfurlliqu <br />TANK <br /># <br />TANK SIZE MINIMUM NUMBER <br />(Gallons) of SOIL SAMPLES <br />LOCATION of SOIL <br />SAMPLES <br />MINIMUM NUMBER of <br />WATER SAMPLES <br />10,000 <br />From wall next to tank <br />Single Tank 2 <br />ends at soil/ groundwater <br />interface <br />Ei< <br />> 10.000 OR <br />From wall next to tank <br />aak Cluster 4 <br />Tank <br />ends at soil/ <br />groundwater interface <br />I <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 order <br />to collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditions <br />TANK I TANK SIZE <br /># (Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION of SOIL SAMPLES <br />< 1,000 3 per Tank Center and Ends OR Sides of Tank <br />1,000 - 10,000 5 per Tank Center and Ends OR Sides of Tank <br />> 10,000 5 OR More per Tank Ends and Middle and generally spaced along <br />the length of the Tank <br />EH 23 046 (Revised 9/11/96) Page 7 <br />