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SAMPLING PROTOCOL FOR ROUTINE TANK ^?MOVAIS <br /> l <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 - <br /> contamination is documented during closure, an Unauthorized Release Notification must be completed and submitted within <br /> 5 working days. California Health & Safety Code, Section 25295. 4 feet. If <br /> WATIA1 NOT PRESENT IN ]'HE TANK PIT <br /> TANK TANK SIZE MINIMUM NUMBER <br /> # (Gallons) LOCATION OF SOIL SAMPLES <br /> J of SOIL SAMPLES <br /> / < 1,((X) I cr Tank <br /> t� F(11 OR Pump End of Tank <br /> \\,\` 1'(100 - IO,WO 2 per Tank <br /> �\ I at each End of Tank <br /> RUx)0 3 or More <br /> Ends and Middle OR generally <br /> ^q� per Tank spaced along the length of the Tank <br /> I" PIPING SOIL SAMPL <br /> — -- eve 20 lineal feet <br /> TANK & PIPING STOCKPILE SAMPL <br /> 2 Samples every 50 cubic yards <br /> WATER 1S PRESENT IN TANK PIT <br /> TANK TANK SIZE MINIMUM NUMBER <br /> # (Gallons) of SOIL SAMPLES LOCATION of SOIL MINIMUM NUMBER of <br /> 10.m) SAMPLES WATER SAMPLES <br /> < <br /> Single Tank From wall next to tank <br /> 2 ends at soil/groundwater <br /> interface 1 <br /> > 10,OW OR <br /> Tank Cluster From wall next to tank <br /> 4 ends at soil/ <br /> groundwater interlace 1 <br /> TANK & PIPING STOCKPILE SAMPLES <br /> 2 Samples every 50 cubic yards <br /> ENT <br /> THE <br /> ANK PIT <br /> Soil samples shall be obtained beneath the slab within native tive oils Penetration trtthrough 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 /> # <br /> TANK TANK SIZE MINIMUM NUMBER <br /> (Gallons) of SOIL SAMPLES LOCATION of SOIL SAMPLES <br /> I'OW 3 per Tank <br /> Center and Ends OR Sides of Tank <br /> Idx10 - 10,0(x) 5 per Tank <br /> Center and Ends OR Sides of Tank <br /> > 10'00 5 OR Moreer Tank <br /> P Ends and Middle and generally spaced along <br /> the length of the Tank <br /> LI 123 047 (REV 4/8/91) Page 7 <br />