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lU 14 lu V.I.JUrra <br /> SAMPLING PROTOCOL FOR ROU'T'INE TANK REMOVALS <br /> The f011owlag represents minimum sampling criterion required for closure compliance. Soil samples oolletted shall be <br /> representative of native soils beneath the tank's Invert (tank's bottom) at a collection depth not to excad 2- 4 feet. If <br /> contamination is documented during closure, as Unauthorized Release Notification mast be completed and submitted <br /> within tive (5)swrking days putsttant to California Health & Safety Code, Section 25295. <br /> WATER NOT PRESENT IN THE TANK PIT <br /> TANK TANK SITE MINIMUM NUMBER LOCATION OF SOIL SAMPLES <br /> # (Gallons) of SOIL SAMPLES <br /> < 1,000 1 per Tank Fill OR Puma End of Tank <br /> 1,000 - 1000 2 per Tank 1 at each End of Tank <br /> > 10,000 3 or More Enda and Middle OR generally <br /> per Tank spaced along the length of the Tank <br /> PIPING AND 3TOCXPILE <br /> PP4I6 SOIL SAMPLES 1 Sample every 20 lineal feel <br /> TANK&PIPING STOCKPILE SAMPLES I 2 Samples every 50 cubic yards <br /> WATER IS PRESENT IN TANK Prr <br /> TANK TANK SIS MINIMUM NUMBER I LOCATION of SOIL MINI IUM NUMBER of <br /> M (Gallons) of SOIL SAMPLES SAMPLES 1YA7'9R SAMPLES <br /> k <br /> < 10,000 From wall aeat to tank f <br /> Single Tank 2 ends at soil/groundwater I 1 <br /> Interface <br /> > 10,000 OR From wail next to tank <br /> Tank CIuster 4 ends at Sulu I <br /> groundwater interface <br /> SL13 PRESENT IN TaF TANK PIT <br /> Soil samples shall be obtained beneath the slab within native sollL Penetration through the obstruction will be required in <br /> order to collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br /> TAMC TANK SIZE I MINIMUM NUMBER LOCATION of SOIL SAMPLES <br /> # (Gallons) [ of SOIL SAMPLES <br /> i <br /> < LOW 3 per Tank Center and Ends OR Sides of Tank <br /> 1,000- 10,ODO 5 per Tank Center and Ends OR Sides of Tank <br /> > 10,000 5 OR More per Tank Ends and Middle and generally spaced along <br /> the length of the Tank <br /> Mi 23 047 Oteviaed 7/10/92) Page 7 <br />