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II <br /> SAMrLINO PROTOCOL FOR ROUTINE TANK RNMOVALS <br /> The following represents minimum sampling criterion required for closure compliance. Soil simple collected shell be <br /> representative of native soils beneath the tank's Invert (tank's bottom) n 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 do Safety Code, Section 25295. <br /> WATER M PRESENT IN THE TANK PIT <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION OF SOIL SAMPLU <br /> f (Oellons) of SOIL SAMPLES <br /> < 1,000 1 per Tank Fill OR Pump End of Tank <br /> 1,000 - 10,000 2 per Tank 1 at each End of Tank <br /> > 10,000 3 or More Ends and Middle OR generally <br /> per Tank spaced along the length of the Tank <br /> PIPING AND STOCKPILE <br /> PIPING SOIL SAMPLES I Sample every 20 lineal feet <br /> )C TANK Rc PIPING STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> WATER IS PRESENT IN TANK PIT <br /> MTank <br /> MINIMUM !Tends <br /> OCATION of SOIL MINIMUM NUMBER of <br /> of SOIL SASAMPLES WATER SAMPLES <br /> om wall next to tank <br /> k 2 ds at soil/groundwater <br /> erface <br /> OR om wall next to tank <br /> er 4 at soli/undwaar Interface <br /> SLAB PRESENT IN THE TANK PIT <br /> Solt samples shall be obtained beneath the slab within native soils. Penetration through the obstruction will be required In order <br /> in collect the samples. (Physical removal of the obstruction will allow samplingaccording to tae above 110 <br /> se <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION of SOIL SAMPLES <br /> (Oailons) 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 /> Fit 23 046 (Revised 9/11/96) page 7 <br />