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. .. , .... . .."". I WK ROU I INL TANK l?J7kl0VAI.S <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 - 4 feet- II <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. <br /> WATER NUT PRESENT IN "HIE TANK I'll' <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION OF SOIL SAMPLES <br /> # (Gallons) of SOIL SAMPLES <br /> < I,IXH) I per Tank Fill OR Pump End of Tank <br /> IA") - IU,IXx) 2 per Tank 1 at each End of Tank <br /> > IU,UW 3 or More <br /> Ends and Middle OR generally <br /> per Tank spaced along the length of the Tank <br /> PIPING SOIL SAMPLES I Sample every 20 lineal feet <br /> TANK & PIPING STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> WA'I Fit IS 1'Itl., ENT IN TANK PIT <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION of SOIL MINIMUM NUMBER of <br /> # (Gallons) of SOIL SAMPLES SAMPLES <br /> WATER SAMPLES <br /> �sI0JXXjFrom wall next to tank <br /> Single Tank 2 ends at soil/groundwater I <br /> interface <br /> > 10,000 OR From wall next to tank <br /> Tank Cluster 4 ends at soil/ <br /> I <br /> groundwater interface <br /> TANK & PIPING STOCKPILE SAMPLES <br /> 2 Samples every SU cubic yards <br /> ENT <br /> Sail samples shall be obtained beneath the slablw thin native soils Pe etratti n through the obstruction will be required in order <br /> M udicct the samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br /> TANK TANK SIZE MINIMUM NUMBER <br /> # (Gallons) LOCATION of SOIL SAMPLES <br /> of SOIL SAMPLES <br /> < 1,000 3 per Tank <br /> Center and Ends OR Sides of Tank <br /> I.M0. - IU,(RN) 5 per Tank <br /> Center and Ends OR Sides of Tank <br /> > 10'UOV 5 OR Moreer Tank <br /> P Ends and Middle and generally spaced along <br /> the length of the Tank <br /> t.112e 047 (REV 478/91) Page 7 <br />