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Table 1 CURRENT GROUNDWATER ELEVATIONS AND SAMPLE ANALYTICAL RESULTS Barnes Trucking 1817 South Fresno Avenue,Stockton,California Well Sampling TOC DTW GWE TOG TPHd TPHg B T E X MTBE 8020 MTBE 8260 Fuel Oxys I D Date (feet) (feet) (feet) ( ) ) ( ) ( ) ( ) ( ) OWL) ( ) ( ) ( ) MW-1 9/7/2004 2015 1222 793 --- --- 3,900 38 70 79 230 --- <0 50 --- MW-2 9/7/2004 1989 1173 8 16 --- --- <50 15 1 13 32 --- <0 50 --- MW-3 9/7/2004 2035 1223 8 12 --- --- 85 16 12 21 47 --- <0 50 --- MW-4 9/7/2004 19 80 1143 8 37 --- --- <50 16 12 15 4 --- <0 50 --- MW-5B 9/7/2004 2010 1242 768 --- --- 3,200 300 45 61 54 --- <0 90 --- MW-6 9/7/2004 2010 1242 768 --- --- 3,500 47 60 77 170 --- <0 50 --- MW-7 9/7/2004 2014 1262 752 --- --- 1,100 16 055 <0 50 16 --- <0 50 --- MW-8 9/7/2004 2057 1319 738 --- --- 310 18 11 13 32 --- <0 50 --- Notes TOC Top of casing elevation referenced to project datum (1) BTEX analyzed by EPA method 8260 DTW Depth to water below TOC (2) TOC and OWE value not applicable due to well box damage OWE Groundwater elevation(TOC-DTW) (3) MW-5 damaged BTEX Benzene,toluene,ethylbenzene and total xylenes by EPA Method 8020 (4) Fuel Oxys analyzed by EPA Method 8240 MTBE Methyl tertiary butyl ether by EPA Method 8020 or EPA Method 8260 --- Not analyzed or measured TPHg Total petroleum hydrocarbons as gasoline by EPA method 5030/8015(modified) 1Cg/L, Micrograms per Mer TPHd Total petroleum hydrocarbons as diesel by EPA method 3510/8015(modified) * Anomalous value TOG Total oil and grease by EPA Method 8015 Fuel Oxys Tertiary butanol,MTBE,Di-isopropyl ether,Ethyl tertiary butyl ether,and Tertiary amylmethyl ether by EPA Method 8260B or 8240 <### Not detected in concentrations exceeding indicated laboratory reporting limits(DLR)