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<br /> TABLE 2: SUMMARY OF ANALYTICAL RESULTS
<br /> 6425 Pacific Avenue, Stockton, Ca
<br /> January 30, 2003
<br /> Laboratory Results Summary Table — Soil
<br /> TPH (mg/kg) VOCs BTEX, MTBE
<br /> Sample Motor (Ng/kg)
<br /> Gas Riese! oil (Ngtkg)
<br /> B, E, MTBE= <5.0
<br /> SB-1-10' <1.0 <1.0 3.9 1,2,4-Trimethylbenzene=9.9 Toluene=5.0
<br /> Xylenes= 18
<br /> B, MTBE=<5.0
<br /> Ethylbenzene= 5.1
<br /> SB-1-20' <1.0 <1.0 3.2 1,2,4 Trimethylbenzene= 18 Toluene= 14
<br /> Xylenes=43
<br /> B, E, MTBE= <5.0
<br /> SB-2-10' <1.0 <1.0 1.8 1,2,4-Trimethylbenzene= 17 Toluene=9.6
<br /> Xylenes= 34
<br /> B, MTBE=<5.0
<br /> SB-2-20' <1.0 <1.0
<br /> 1,2,4-Trimethylbenzene=32 Ethylbenzene=9.1
<br /> 1.4 1,3,5-Trimethylbenzene=9.6 Toluene=25
<br /> Xylenes=73
<br /> B, E, MTBE= <5.0
<br /> SB-3-20' <1.0 <1.0 2.1 1,2,4-Trimethylbenzene= 12 Toluene=6.6
<br /> Xylenes=24
<br /> B= 1,500
<br /> ARG- None None None 1,2,4-Trimethylbenzene= 170,000 T=520,000
<br /> Industrial 1,3,5-Trimethylbenzene=70,000 E=230,000
<br /> X=210,000
<br /> Laboratory Results Summary Table •- Water
<br /> TPH(Vg/L) VOCs BTEX, MTBE,Oxygenates
<br /> Sample Gas Diesel Motor (pg/L) (Ng/L)
<br /> n-Butylbenzene=35 Benzene=<25
<br /> Isopropylebeneze=75 Toluene=<25
<br /> p-Isopropylbenzene=50 Ethylbenzene =340
<br /> SB-1 42,000 59,000 ND Napthalene=760 Xylenes=14,000
<br /> n-Propylbenzene= 130 MTBE_ <25
<br /> 1,3,5-Trimethylbenzene=770 Oxygenates= ND
<br /> 1,2,4-Trimethylbenzene=2,900
<br /> B= 1
<br /> T= 150
<br /> MCL None None None Compound Specific E=700
<br /> X= 1 750
<br /> Note: See laboratory data sheets for compound specific reporting limits.
<br /> TPH=total petroleum hydrocarbons mg/L=milligrams per liter,parts per million(ppm)
<br /> VOCs=volatile organic compounds pg/L w micrograms per liter,parts per billion(ppb)
<br /> BTEX=benzene,toluene,ethyl benzene and xylenes ND=not detected at or above the laboratory reporting limits.
<br /> MTBE=methyl t-butyl ether
<br /> MCL= Cal EPA Maximum Contaminant Level,August 2000.
<br /> PRG=US EPA Region IX Periiminary Remediation Goal-,Industrial Scenario
<br /> Sheen and petroleum odor exhibited in the groundwater sample collected from S13-1.
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