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SAN JOAQUI N LOCAL HEALTH DISTRICT pp SAMPLING PROTOC.AL FOR ROUTINE TANK REMOVALS sampleslcollectedrshallsbeirepresentative ofter nativesollsrbeneathclosure tank'spliance. Soil invert (tank's bottom] at a collection depth not be exceed 2 - 4 feet. If contamination is doctednto Sduring closure edaan Unauthorized Release notification must be filled out and JLHD thin 5 ection WATER NOT PRESENT IN THE TANK PIT _._.-.---•----------- TANK SIZE MINIMUM NUMBER OF LOCATION OF SOIL SAMPLES SOIL SAMPLES :_-,,=-.=.-:_.:-.�Fill or pump end of tank... Less than 1000 gallons ONE per tank 1000 - 10,000 gallons TWO per tank One at each end of tank 10,001 gallons and up THREE OR MORE Ends and Middle or per tankggenerall spaced along Eh 1 h of the tank Piping e en ONE EVERY 20 LINEAL FEET — WATER IS PRESENT IN TANK PIT TANK SIZE MINIMUM NO. OF LOCATION OF SOIL MUM NUMBER OFIWAIT SAMPLES SOIL SAMPLES SAMPLES_ i 10,000 GALLONS From wall next to tank ends at soil/ OR LESS (Single Tank) TWOgroundwater ONE interface GREATER0 From wall next to tank ends.at soil/ ONE 110 GALLONS groundwater TANK CLUSTER FOUR interface_ _ _ OTHER S PEC I AL CONDITIONS SLAB PRESENT IN TANK PIT Soil samples shall be obtained beneath the slab within native soils. Penetration through theobstruction willwthenballowusampling acccordincollect toethetabovemconditionsss•jcal removal of the TANK SIZE MINIMUM NUMBER OF I LOCATION OF SOIL SAMPLES SOIL SAMPLES Less than 1000 gallons THREE per tank Center and ends or sides 1000 - 10,000 gallons FIVE per tank Center and ends or sides 10,001 gallons and up FIVEORMORE per Ends and Middle and ?he spaced along the leng h of the tank EH 23 047 12/88 REVISED 1/89