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SAMPL NG PROTOCOL FOP. ROUT HE TANK REMOVALS <br /> The following represents minimum sampling criterion required foi closure compliance. Soil samples collected shall be representative of <br /> native soils beneath the tank's invert (tank's bottom at a collection depth not to exceed 2-4 feet. If contamination is documented <br /> during closure, an Unauthorized Release Notification must be completed and submitted within five (5)working clays pursuant to <br /> California Health & Safety Code. Section 25295. <br /> WATER NOT PRESENT IN THE TANK PIT <br /> TANK TANK SLE M N MUM NUMBER LOCATION OF SOL SAMPLES <br /> # (Gallons) of SO L SAMPLES <br /> < 1.000 1 pei Tank Fill OR Pump End of Tank <br /> 1,000- 10.000 2 peiTank 1 at each End of Tank <br /> �lc <br /> c' > 10,000 3 or More Ends and Middle OR, generally <br /> I per Tank spaced along the length of the Tank <br /> PIPING AND STOCKPILE <br /> P P NG SO L SAMPLES 1 Sample every 20 lineal feet <br /> TANK &P P NG STOCKP LE SAMPLES 2 Samples every 50 cubic yards <br /> Tb 3E DF, YrnM )N',:Es <br /> WATER IS PRESENT IN TANK PIT <br /> TANK TANK S LE MINIMUM NUMBER of LOCATION of SOL M N MUNI NUMBER of <br /> # (Gallons) SOL SAMPLES SAMPLES WATER SAMPLES <br /> <10.000 2 from wall next to tank <br /> Single Tank 3 ends at soiligroundwater 1 <br /> interface & 1 below tank <br /> 4 from wall next to tank <br /> > 10.000 OR ends at soingroundwater <br /> Tank Cluster 5 or more interface & 1 below each 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 orderto <br /> collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br /> TANK TANK S L?E NI N MUM NUMBER. LOCATION of SOL SAMPLES <br /> # (Gallons) of SOL SAMPLES <br /> < 1.000 3 per Tank Center and Ends OF. Sides of Tank <br /> 1.000- 10.000 5 )er Tank Center and Ends OR Sides of Tank <br /> > 10.000 5 OR More per Tank Ends and Middle and generally spaced <br /> along the length of the Tank <br /> Tri-Regional Recommendations <br /> Appendi>,A <br />