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REGAL 604 TABLE 5 EXCAVATED SOIL PILES CHEMICAL RESULTS EPA METHODS 8015 MODIFIED AND 8070/602 W/5030 EXTRACTION SOIL PILE SAMPLE DATE TOTAL PETROLEUM HYDROCARBONS ETHYL DESIGNATION ID# SAMPLED GASOLINE KEROSINE DIESEL OILS BENZENE TOLUENE BENZENE XYLENES IN PPM IN PPM IN PPM IN PPM IN PPM IN PPM IN PPM IN PPM AE2-B <10 90 <10 c10 <0 005 CO 005 40 005 <0 015 AE2-C <10 33 <10 <10 <0 005 40 005 40 005 c0 015 AE2-D <10 140 <10 <10 <0 005 <0 005 <0 005 <0 015 EXCAVATED SOIL GENERATED PROM BENEATH PUMP ISLAND AREA PUMP ISLAND SP1-1(A,B,C,D) 08/22/90 <10 30 20 <10 <0 005 0 12 <0 005 0 58 OVEREXCAVATED SP1-2(A,E,C,D) <10 50 CIO <10 CO 005 0 04 CO 005 0 62 SOIL SP1-3(A,S,C,D) <10 30 <10 <10 <0 005 <0 OOS CO 005 0 33 SP1-4(A,B,C,D) <10 <10 <10 <10 <0 005 CO 005 <0 005 0 06 SP2 (A,B,C,D) c10 50 410 <10 <0 005 0 01 <0 005 1 2 SP3 l(A,B C,D) <10 35 20 c10 <0 005 <0 005 <0 005 0 44 SP3 2(A,S,C,D) <10 30 CIO <10 CO 005 <0 005 0 05 0 44 AERATION OF THE ABOVE SOIL GRANTED ON 9/06/90 AT 350 CUBIC YARDS ONLY THREE AREAS OF SITE AVAILABLE FOR AERATION OF SOIL AT 6 INCHES DEEP AREA A, EAST OF THE EXCAVATON . 100' BY 40' m 74 CUBIC YARDS AREA B, NORTH OF THE EXCAVATIONS . 75 BY 25' - 35 CUBIC YARDS AREA C SOUTHWEST OF THE EXCAVATIONS = 80' BY 30 . 45 CUBIC YARDS FOR A TOTAL OF 154 CUBIC YARDS AERATION WAS ACCOMPLISHED BY USING A FRONT END LOADER AND CONTINUEOUSLY WORKING SOIL AERATED SOIL SPIA 09/19/90 <10 <10 <10 ND <0 005 c0 005 <0 OOS 40 015 SP1B CIO <10 <10 ND c0 005 <0 005 <0 005 <0 015 SP2 <10 <10 <10 ND <0 005 40 005 <0 005 <0 015 SP3 430 <10 <10 ND <0 005 <0 005 <0 005 <0 015 PUMP ISLAND OVEREXCAVATION OF EASTERN G WESTERN ISLANDSP4 A/B 09/19/90 <10 1B <30 ND 40 005 CO 005 <0 005 <0 015 SP4 C/D composed into one sample with SP4 A/B NA NOT ANALYZED PPM PARTS PER MILLION AS MG/KG (MILIGRAMS/KILOGRAM) * THESE SAMPLES WERE CONFIRMED USING GC/MS DUE TO CO-ELUTING OF THE KEROSINE RANGE COMPOUNDS i