Laserfiche WebLink
SAMPLING PROTOCOL FOR ROUTINE TANK REMOVALS <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. If <br />contamination is documented during closure, an Unauthorized Release Notification must be completed and submitted within five (5) <br />working days pursuant to California Health & Safety Code, Section 25295. <br />WATER NOT PRESENT IN THE TANK PIT <br />(PIPING AND STOCKPILE <br />TANK SIZE <br />MINIMUM NUMBER <br />LOCATION OF SOIL SA2IPLES <br />TANK <br /># <br />(Gallons) <br />of SOIL SAMPLES <br />3 <br />2 from wall next to tank <br />ends at soil/groundwater <br />interface & I below tank <br />< 1,000 <br />1 per Tank <br />Fill OR PumR End of Tank <br />1,000 - 10,000 <br />2 per Tank <br />1 at each End of Tank <br />> 10,000 OR <br />ends at soil/groundwater <br />> 10,000 <br />3 or More <br />per Tank <br />Ends and Middle OR generally <br />spaced along the length of the Tank <br />(PIPING AND STOCKPILE <br />vv,'iTR VZ PR'F.gR T TN TANK PTT <br />PIPING SOIL SAMPLES <br />TANK &PIPING STOCKPILE SAMPLES <br />I Sample eveg 20 lineal feet <br />2 Samples every 50 cubic yards <br />7 <br />(v, 7 a <br />vv,'iTR VZ PR'F.gR T TN TANK PTT <br />SLAB 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 order to <br />collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br />TANK <br /># <br />TANK SIZE <br />(Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION of SOIL <br />SAMPLES <br />MINIMUM NUMBER <br />of WATER SAMPLES <br />TANK <br /># <br />3 per Ta k <br />< 10,000 <br />Single Tank <br />3 <br />2 from wall next to tank <br />ends at soil/groundwater <br />interface & I below tank <br />1 <br />5 per Tank <br />Center and Ends OR Sides of Tank <br />> 10,000 <br />4 from wall next to tank <br />Ends and Middle and generally spaced <br />along the length of the Tank <br />> 10,000 OR <br />ends at soil/groundwater <br />Tank Cluster <br />5 or more <br />interface & I below each <br />1 <br />tank <br />SLAB 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 order to <br />collect the samples. (Physical removal of the obstruction will allow sampling according to the above conditions.) <br />TANK <br /># <br />TANK SIZE <br />(Gallons) <br />MINIMUM NUMBER <br />of SOIL SAMPLES <br />LOCATION of SOIL SAMPLES <br />< 1,000 <br />3 per Ta k <br />Center and Ends OR Sides of Tank <br />1,000 - 10,000 <br />5 per Tank <br />Center and Ends OR Sides of Tank <br />> 10,000 <br />5 OR More per Tank <br />Ends and Middle and generally spaced <br />along the length of the Tank <br />EH 23 046 (Revised 08/13/99) <br />Page 7 <br />80 39Cd d00-13 H13I3 ££b£89V60Z TO:60 0002/GT/50 <br />