Laserfiche WebLink
SAM" TIG PROTOCOL FOR ROUTINE TANK MOVALS . <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 (tam's bottom) at a collection depth not to exceed 2 -4 feet If <br /> contamination is documented during closure,an Unauthorized Release Notification must be completed and submitted <br /> within five (5) working days pursuant to California Health &Safety Code,Section 25295. <br /> WATER NOT PRESENT IN TEE TANK PIT <br /> TANK TANK SIZE MINIMUM NUbBER LOCATION OF SOIL SAMPLES <br /> (Gallons) of SOIL SAMPLES <br /> < 1,000 1 per Tank FBI OR Pump End of Tank <br /> / 1,000 - 10,000 2 per Tank 1 at each End of Tank <br /> > 10,000 3 or More Ends and Middle OR generally <br /> per Tank spaced along the length of the Tank <br /> PIPING AND STOCKPILE <br /> PIPING SOIL SAMPLES 1 Sample every 20 lineal feet . �I <br /> TANK& PIPING STOCKPILE SAITLES 2 Samples every 50 cubic yards �I <br /> WATER IS PRESENT IN T.k`IK PIT <br /> TANK TANK SIZE MIND Ubf NLR BER I LOCATION of SOIL MINIMUM NUNME.R of II <br /> (Gallons) of SOIL SAMPLES SAMPLES WATER SAMPLES <br /> < 10,000 From wall next to tank <br /> Single Tank I 2 ends at soil/groundwater 1 <br /> interface <br /> > 10,000 OR From wall next to tank II <br /> Tank Cluster 4 ends at soill 1 <br /> groundwater interface <br /> SLAB PRESENT IN THE TANK PTT <br /> Soil samples shall be obtained beneath the slab within native soils. 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 /> TANK TANK S[ZE MINIMUbf NU vBER LOCATION of SOII SAMPLESII <br /> (Gallons) of SOIL SAMPLES <br /> < 1,000 3 per Tank Center and Ends OR Sides of Tank <br /> 1,000 - 10,000 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 23 047 (Revised 7/10/92) Page 7 <br />