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SAMPLIN%.rROTOCOL FOR ROUTINE TANK REh.AVALS <br />The fallowing represents minimum smopling criterion required for closure compliance. Soil samples collected shall be <br />representative of nalive soils benenih the bank's invert ((ink's, bottom) at a collection depth not to exceed 2 • 4 feel. If <br />contaminnllon Is documented During closure, an Unauthorized Release Notification must be completed and submitted <br />within Ove (5) working days pursuant to CaOrornia Ileallh & Safety Cale, Section 25295. <br />WA'1'ISIt NOT 11RFSKN-I' IN 1.116 TANK PIT <br />PIPING AND STOCKPILE <br />PIPING SOIL SAMPLES <br />I Sample every 20 lineal feet <br />LOCATION OF SOIL SAMPLES <br />TANK <br />ty <br />TANK SIZE <br />(Unllons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />Center and Ends OR Sides of Tank <br />From wall next to tank <br />I per Tank <br />Fill OR Pump End of Tank <br />Single Tank <br />(,(1110 - 10,000 <br />2 per Tank <br />7 or More <br />Per Tank <br />I at each End of Tank <br />Ends and Middle OR generally <br />spaced nlong the length of the Tank <br />PIPING AND STOCKPILE <br />WATER IS Pitfmmr IN TANK PIT <br />TANK <br />A <br />PIPING SOIL SAMPLES <br />I Sample every 20 lineal feet <br />LOCATION of SOIL <br />SAMPLES <br />TANK & PIPING STOCKPILE SAMPLES <br />2 Samples every 50 cubic yards JI <br />—1 <br />WATER IS Pitfmmr IN TANK PIT <br />TANK <br />A <br />TANK SIZE <br />(Onllons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION of SOIL <br />SAMPLES <br />MINIMUM NUMBER of <br />WKI'ER SAMPLES <br />< l,(N10 <br />< 10,01111 <br />Center and Ends OR Sides of Tank <br />From wall next to tank <br />I'mill - IO,l1W <br />5 per 'Tank <br />Single Tank <br />2 <br />ends nt soil/ groundwater <br />I <br />Ends and Middle and generally spaced along <br />the length or the Tank <br />interface <br />> 10,(XXJ OR <br />From wall next to tank <br />Tank Cluster <br />4 <br />ends al soil/ <br />1 <br />groundwater Interface <br />SLAB I'RF.SF.N'r IN TIM TANK PIT <br />Soil samples shall be obtained bene-uh the slab witidn native soils. Penetration through the obstruction will be required In <br />order to collect the samples. (Physical removal of the obstruction wilf allow sampling according (o the above conditions.) <br />'TANK <br />A <br />'TANK SIZE <br />(Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION of SOIL SAMPLES, <br />< l,(N10 <br />3 per Tank <br />Center and Ends OR Sides of Tank <br />I'mill - IO,l1W <br />5 per 'Tank <br />Center and Ends OR Sides of Tank <br />> IO,OW <br />5 OR More per Tank <br />Ends and Middle and generally spaced along <br />the length or the Tank <br />01 73 047 ' (Revised 7/10/92) Page 7 <br />