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SAMPLING PROTOCOL FOR ROUTINE T.,UNK REMOVALS <br />' The foilowin; represents minimum sampling criterion required for closure compliance. Soil samples coilec:ed shail be <br /> representative of native soils beneath the tank's invert(tank's bottom) at a collection depth act to exceed 2 - 4 fee.- If <br /> t contamination is documented during closure, an Unauthorized Release Notification must be completed and subminLed within five ° i <br /> working days pursuant to California Health & Safery Code, Section 25295. 1 <br /> i <br /> i <br /> t WATER NOT PRESENT IN THE TANK PIT <br /> TANK TANK SIZE MIN114UM NUMBER LOCATION OF SOIL SAMPLES <br /> T (Gallons) of SOIL SAMPLES <br /> I <br /> < 1.000 �I . 1 ver Tank F11 OR Pump Fad �f Tank <br /> I,000 - 10.000 l 2 per Tank l at each End of Tanis <br /> > 10.000 3 or -fore Ends and Middle OR generaily <br /> ger Tank spaced along the length df the Ta^ <br /> PIMG AND STOCKPILE <br /> PIPING SOIL SAMPLES 1 I Sample every 20 lineal.feet <br /> i TANK & PIPING: STOCKPILE SAMPLES ? Samples every 50 cubic yams <br /> WATER IS PRESE4T IN TANK PIT <br /> TANK TANK SIZE MINIMUM NUNMER � LOCATION of SOIL I -1INIML lel MPLE ER or <br /> 4 (Gallons) of SOIL SAMPLES SAMPLES WATER S,vMPLESAMPLES <br /> [ 10,000 From wall next to tank <br /> ISingle Tank ? ends at soil/ groundwater 1 <br /> interface . <br /> j I <br /> { ! > 10.000 OR From wail next to iwk <br /> { Tank Cluster 4 ends at soil/ 1 <br /> groundwater interface <br /> 'I <br /> SLAB PRESET IT IN THE TANK PIT <br /> Soil samples shall be obtained beneath the slab within active sails. Penetration through the obstruction will be required in order :O <br /> collect rhe samples. (Physical removal of the obstruction will allow sampling according to the above conditions'.) <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION of SOIL SAFMPLES <br /> } # (Gallons) of SOIL SAMPLES <br /> < 1.000 I 3 ver Tank Center and Ends OR Sides of Tank <br /> 1.000 10.000 5 ver Tank I Center and Ends. OR Sides of Tank <br /> ' ! > 10.000 5 OR More per Tank Ends and-fiddle and generally spaced along <br /> t <br /> the length of the Tank <br /> EH 23 046 (Revised 10/19198) Wage <br /> i <br />