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SAMPLING ' -)TOCOL FOR ROUTINE TANK REMC -SLS <br /> IU following represents minimum sampling crllerion required for closure compliance. Soil samples collected shall be <br /> represcntative of native soils benealh the tank's Inverl (tank's botlom) at a collection depth not to exceed 2 - 4 feel. If <br /> cxmiaminatlon Is documented during closure, an Unauthorized Release Notification mast be completed and submitted <br /> within five (5) working days pursuant to Californla I lcallh & Safety Code, Section 25295. <br /> WATER NU"f PRESENT IN 'I'IIE TANK 111'1' <br /> 'I`ANK 'TANK 512.13 MINIMUM NUMI)Eit LOCATION OI--SOIL SAMPLES <br /> # (t:lallons) of SOIL SAMPLIs5 <br /> < 1,1x70 1 per 'Tank Fill OR Pump End of Tank <br /> I,lxxl - 10,000 2 per 'Tank I at each End of Tank <br /> > I(),O(X) 3 or More Ends and Middle Olt generally <br /> per 'Tank spaced along the length of the 'Tank <br /> PIPING AND STOCKIVILE <br /> PIPING SOIL SAMPLES 1 Sample every 20 lineal feel <br /> TANK & PIP1NO STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> WATER IS PRESENT IN TANK PIT <br /> 'TANK TANK SIZE MINIMUM NUMI)ER LOCATION of SOIL MINIMUM MUM UR of <br /> # (Uallons) of SOIL. SAMPLES SAMPLES WATER SAMPLES <br /> < I0,(X70 From wall next to lank <br /> Single "Tank 2 ends at soll/groundwater I <br /> Interface <br /> > 10,000 OR From wall next to lank <br /> "Tank Cluster 4 ends at soil/ l <br /> groundwater Inlerface <br /> SIAA PItESEN'1' IN 'TILE TANK PIT <br /> Soil samples shall be obtained beneath the slab within native soils. Pcnelradon through the obstruction will be requlred in <br /> order to collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br /> F1, MINIMUM NUMBER LOCA`1.1ON of SOIL SAMPLES of SOIL SAMPLES <br /> 3 Per Tank Center and Ends OR Sides of Tank <br /> m 5 per Tank Center and Ends OR Sides of Tank <br /> , 5 Oft More per "Tank Ends and Middle and generally spaced along <br /> ilia Iengrh of the Tank <br /> Ell 23 047 (Itevtaed 7/10/92) Page 7 <br />