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SAMPL• l PROTOCOL FOR ROUTINE TANK ? AOVALS <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 Unasthorlaed Release Notification most be completed and submitted <br />within five (5) working days pursuant to California Health a Safety Code, Section 25295. <br />WATER NOT PRESVIT IN THE TANK PIT <br />TANK <br /># <br />TANK SIZE <br />(Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION OF SOIL SAMPLES <br />t7� <br />< 1,000 <br />1 per Tank <br />Fill OR Pump End of Tank <br />From wall neo to tank <br />1,000 - 10,000 <br />2 per Tank <br />1 at each End of Tank <br />2 <br />> 10000 <br />3 or More <br />per Tank <br />Ends and Middle OR generally <br />spaced along the length of the Tank <br />411j1. ..11 y 6�y:4Ll :+ <br />WATER IN PRESENT IN TANK PIT <br />TANK <br />M <br />TANK SIZE <br />(Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION of SOIL <br />SAMPLES <br />MINIMUM NUMBER of <br />I WATER SAMPLES <br />< 1,000 <br />< 10A00 <br />Center and Ends OR Sides of Tank <br />From wall neo to tank <br />1,000 - 10,000 <br />5 per Tanis <br />Single Tank <br />2 <br />ends at loll! groundwater <br />1 <br />Ends and Middle and generally spaced along <br />the length of the Tank <br />interface <br />> 10,000 OR <br />From wall next to lank <br />Tank Ouster <br />4 <br />tads at sou/ <br />1 <br />groundwater interface <br />SLAB PRESENT IN THE TANK PIT <br />Soil samples shall be obtained beneath the slab within native softs. Penetration through the obstruction will be required to <br />order to collect the samples. (Physical removal Of the obstruction Will allow sampling according to the above conditions.) <br />TANK <br /># <br />TANK SUE <br />(Gallons) <br />MINIMUM NUMBER <br />of SOI. SAMPLES <br />LOCATION of SOIL SAMPLES <br />< 1,000 <br />3 per Tank <br />Center and Ends OR Sides of Tank <br />1,000 - 10,000 <br />5 per Tanis <br />Center and Ends OR Sides of Tank <br />> 10,000 <br />5 OR More per Tank <br />Ends and Middle and generally spaced along <br />the length of the Tank <br />Fit 23 047 (ltevlsed 7/10/92) Page I3 <br />