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SAMPLING PROTOCOL FOR ROUTINE TANK REMOVALS <br /> The following reprexnts minimum sampling criterion required for closure compliance. Soil samples collected shall be <br /> representative of native soil$beneatb the tank's invert(tank's bormm)at a collection depth not ro exceed 2-4 feet. If <br /> centamtnation is docutnemed during-losine, an Unauthorized Release Notification must be completed and submitted within five t51 <br /> wor�dng days pursuant to Caiiforma Health & Safety Code. Section 25295. <br /> WATER MESETIT IN THE T-04K PIT <br /> -7 <br /> TA^IK Ta�TC SIZE MM%4UMTNU'M.. BER LOCATION OF SOIL SAMPLES <br /> (Gallons) of SOIL SS <br /> < 1,000 1 paTank Fill OR Pump End of Tull: <br /> i <br /> 1 000- 10,000 2 oer Tank 1 at each End of Tank <br /> .I <br /> Ecds and Middle OR eneraliy <br /> n 10,C,00 3 or More g <br /> per ,ank Spaced along [he le^..'th of the Talc <br /> PIP A.ND STOCKPILE <br /> PIPING SOIL SAMPLES 1 Sa=le every 20 lineal feet <br /> R <br /> TANK&PIPING STOCKPIL'c S;MPLES Samples every 50 cubic yards <br /> WATER IS PRESS-SIT IN TANK PIT <br /> ^,'.qNK TANK SIZE MINIMUM NUMBER I LOCATION of SOIL MINIMUM NUMBER <br /> # <br /> (Gallons) of SOIL SAMPLES SAMPLES of WA—ER SAMPLES <br /> i <br /> < 10,000 2 ircm wall next io tank <br /> Single Task 3 ends at soii,'groundwater <br /> inrerface&I below tank <br /> 4 from wail next to tank <br /> ! > 10,000 OR cndi at soiVaroundwater <br /> Tank Cluster 5 or more interface & I below each <br /> tank <br /> SLAB PRESENT IN THE TANK PIT <br /> Soil samples shall be obtained beneath the slab within dative$oils. Penetration through the obstruction wil' be required i n aider tc <br /> collect'&samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br /> TANK TANK SIZE MINIMUIvf NUMBER LOCATION of SOIL SAMPLES <br /> # (Gallons) of SOIL SAMPLES <br /> < 1 000 a ^er Tank Center and Ends OR Silks of Tank <br /> 1,000- 10,000 5 r Tank I Caste:and Ends OR Sides of Teak l <br /> 10 000 5 OR More per Tank Ends and Middle and gcnerally spaced I' <br /> along the length of the Tank <br /> EH 23 046(Revised 08/13/99) Fage 7 <br />