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P. E <br />SAMPLINIPPROTOCOL FOR ROUTIN IN ti <br />E TAINK REMOVALS <br />VA ALS <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 rive (.5) <br />working days pursuant to California Health & Safety Code, Section 25295. <br />WATER NOT PRESENT IN THF TANK PIT <br />TANK <br />TANK SIZF- <br />(Gallons) <br />y1INIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION OF SOIL SA,iMP(,ES <br />MINIMUM NUMBER <br />of WATER SAMPLES <br />< 1.000 <br />1 per Tank <br />Fill OR Pump End of Tank <br />2 from wall next to tank <br />1,000 - t0,000 <br />S per Tank <br />Single Tank <br />3 <br />1.000 - 10.000 <br />? per Tan1k <br />1 at each End of Tank: <br />/ <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 />WIPING AND STOCKPILE <br />WATER IS PRESENT IN TANK PIT <br />TANK <br /># <br />TANK SIZE <br />(Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION of SOIL <br />SAMPLES <br />MINIMUM NUMBER <br />of WATER SAMPLES <br />< 1.000 <br />< 10.000 <br />Center and Ends OR Sides of Tank <br />2 from wall next to tank <br />1,000 - t0,000 <br />S per Tank <br />Single Tank <br />3 <br />ends at .coil/groundwater <br />1 <br />Ends and Middle and generally spaced <br />along the length of the Tank <br />interface & 1 below tank <br />> 10.000 OR <br />4 r'rom wail next to tank <br />Tank Cluster <br />S or more <br />ends at soil/grotuidwater <br />interface & 1 below each <br />1 <br />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 order to <br />collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br />TANK <br />if <br />TANK SIZE <br />(Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION of SOIL SAMPLF,S <br />< 1.000 <br />3 per Tank <br />Center and Ends OR Sides of Tank <br />1,000 - t0,000 <br />S per Tank <br />Center and Ends OR Sides of Tanis <br />> 10.000 <br />5 OR More per Tank <br />Ends and Middle and generally spaced <br />along the length of the Tank <br />-H 23 046 (Revised 08/ 13/99) Page 7 <br />