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• TABLE #1 • <br /> SAMPLING FOR ROUTINE TANK REMOVALS <br /> 10 AUGUST 1990 <br /> CASE A: WATER NOT PRESENT IN TANK PIT <br /> 1) REMOVE A MAXIMUM OF TWO FEET OF NATIVE SOIL BEFORE SAMPLING. <br /> Z) IF AREAS OF DEVIOUS CONTAMINATION ARE OBSERVED, THEY ARE TO <br /> BE SAMPLED . <br /> I MINIMUM NUMBER I LOCATION <br /> IO <br /> I TANK SIZE OFSOIL SAMPLES I SOIL SAMPLES I <br /> LESS THAN 1000 GAL. I ONE PER TANK (FILL OR PUMP END OF TANKI <br /> 1 1000-10, 000 GAL. I TWO PER TANK I ONE AT EACH END OF TANKI <br /> I I <br /> 1 GREATER THAN I THREE OR MORE I ENDS AND MIDDLE OR i <br /> 1 10 , 000 GAL. I PER TANK I GENERALLY SPACED ALONG I <br /> I I I THE LENGTH OF THE TANK I <br /> I <br /> PIPING I ONE I EVERY 20 LINEAL FEET j <br /> CASE B: WATER PRESENT IN TANK PIT <br /> 1) THE TANK PIT MAY BE PURGED AND ALLOWED TO REFILL BEFORE <br /> SAMPLING. THE PURGED WATER IS TO BE HANDLED CORRECTLY. <br /> Z) THE WATER SAMPLE IS TO BE REPRESENTATIVE OF WATER IN THE <br /> TANK PIT. <br /> I MINIMUM NUMBER I LOCATION I MINIMUM NUMBER <br /> OF <br /> TANK SIZE I OF I OF <br /> I SOIL SAMPLES I SOIL SAMPLES I WATER SAMPLES I <br /> I I <br /> 110, 000 GAL. I IFROM WALL NEXT I ONE i <br /> I OR LESS I TWO ITO TANK ENDS ATI <br /> IQSINGLE TANKI ISOILIGROUND I I <br /> (WATER INTERFACE1 <br /> I I I I 1 <br /> IGREATER THAN I IFROM WALL NEXT I <br /> 110, 000 GAL. I FOUR ITO TANK ENDS I ONE I <br /> OR I IAT SOILIGROUND I <br /> ( TANK CLUSTER I IWATER IN'TERFACEI <br /> i <br />