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S ING PROTOCOL FOR ROUTINE TANK OVALS <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 '_'5295. <br />TANK I TANK SIZE <br />(Gallons) <br />• '� <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION OF SOIL SAMPLES <br />< 1,000 I per Tank Fill OR Pump End of Tank <br />1,000 - 10.000 2 per Tank I at each End of Tank <br />> 10.000 3 or More Ends and Middle OR generally <br />per Tank spaced aiono :he ieneth of the Tank <br />PIPING A.NTD STOCKTILE <br />1 gamnie >vPn• )n ii,ni ter <br />7 tamnlr• ?VPN l0 minir v51rnq <br />TANK <br />TANK <br />TANK SIZE MINIMUM NUMBER <br />( (Gallons) ( of SOIL SAMPLES <br />LOCATION of SOIL MLNIMUM NUMBER of <br />( SAMPLES + WATER SAMPLES <br />I LOCATION of SOIL SAMPLES <br />< 10.000 <br />(Gallons) <br />From wail next to tank <br />Single Tank <br />2 <br />ends at soil/ groundwater <br />1 <br />1,000 - 10,000 <br />I 5 per Tank <br />Center and Ends OR Sides of Tank <br />interface <br />> 10,000 <br />5 OR More per Tank <br />> 10.000 ORI <br />From wall next to tank <br />Tank Cluster <br />4 ends at soil/ I <br />[aroundwater interface <br />SLAB PRESENT LN THE T.LtiX 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 <br />TANK SIZE <br />MINIMUM NUMBER <br />I LOCATION of SOIL SAMPLES <br />T <br />(Gallons) <br />of SOIL SAMPLES <br />3 per Tank <br />Center and Ends OR Sides of Tank <br />1,000 - 10,000 <br />I 5 per Tank <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 />EH 23 046 (Revised 9/11/96) Page 7 <br />