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T <br /> SAMPLING PROTOCOL FOR ROUTINE TANK REMOVALS <br /> The following represents minimum sampling criterion rerlulred for closure compliance. Soil samples collected shall be <br /> representative of native soils beneath the lank's Invert (tank's bomom) at a collection depth not to exceed 2 - 4 feet. If <br /> amiaminallon Is documented during closure, an Unauthorized Release Notification must be completed and submitted <br /> within five (5) working days pursuant to California Health & Safely CA)de, Section 25295. <br /> WATER Nqj PRESENT IN THE TANK. PIT <br /> TANKrTANKS17-E MINIMUM NUM1fEIt LOCATION OF SOIL SAMPLES <br /> # of SOIL SAMPLES <br /> 1 Per Tank Fill OR Pump End of Tank <br /> 5980 2 per Tank l at each End of Tank <br /> > 10,000 7 or More Ends and Middle OR generally <br /> per Tank spaced along lire length of the 'Pank <br /> PIPING AND STOCKPILE <br /> r/ IPINO SOIL SAMPLES 1 Sample every 20 lineal feel <br /> "TANK & PIPING STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> WATER IS PRESENT IN TANK PIT <br /> TANK TANK SIZB M <br /> IN IMU NUMBER LOCATION of SOIL MINIMUM NUMBER of <br /> # (Gallons) of SOIL SAMPLES SAMPLES WATER SAMPLES <br /> < 10000 From wall next to lank <br /> Single '1'ank 2 ends at sof/ groundwater 1 <br /> Interface <br /> > 10,000 OR From wall next to tank <br /> 'Tank Cluster 4 ends at soft/ I <br /> groundwater Interface <br /> SIAII PRESENT IN THE TANK PIT <br /> Soil samples shall be obtained beneath the slab within native soils. Penetration through the obstruction will be required In <br /> order uo collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br /> TANK TANK SIZE MINIMUM NUMBER LOCATION of SOIL SAMPLES <br /> # (Gallons) of SOIL SAMPLES <br /> < 1,000 ] Per Tank Center and Ends OR Sides of Tank <br /> i <br /> 1,000 - 10,()(0 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 /> Ell 23 017 (Revised 7/10/92) Page 7 <br />