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30 August 2007 AGE-NC Project No. 07-1517 Page 2 of 7 total of 66 soil samples were collected and analyzed. Selected samples were analyzed for TPH-g, TPH-d,benzene,toluene,ethylbenzene and total xylene(BTEX)and halogenated volatile organic compounds (HVOCs), ethylene glycol and metals. Soil samples located in the three divided assessment areas: Area I(northern area near northeast of the workshop);Area II(central portion of the site near southeast of the workshop)and Area III(east of the site in the Cal Trans ROW) contained detectable levels of petroleum hydrocarbons which were "atypical of diesel fuel" in shallow samples above four and one-half feet bsg. The impacted soil was remediated and disposed. In the first quarter of 1997,a work plan implemented to collected soil samples and characterize the site collected twenty-three soils samples from eleven locations on the site(A-K).The samples were collected from trenches, hand augers and hollow stem drilling rig samplers and submitted to a laboratory for TRPH(petroleum hydrocarbons)TPH-g,TPH-d,benzene,toluene,ethylbenzene and total xylene (BTEX)/volatile organic compounds (HVOCs), ethylene glycol and metals analysis (including soluble lead).Additional re-sampling of the shallow soil from a depth of one foot bsg was conducted at locations AA,BB and CC; which provided samples for soluble lead analysis. The shallow soils(one foot bsg)from samples A,B,C and D had detectable concentrations of TRPH at level from 200 milligrams per kilograms(mg/kg)to 16,000 mg/kg.Low levels of VOCs(BTEX) were detected in sample B at one foot bsg. The same sample had a detection of TPH-gasoline at 4.4 mg/kg.No other samples had detectable TPH-gasoline/diesel or VOCs.Lead was detected in the samples A, B, C at concentrations ranging from 46 mg/kg to 200 mg/kg; while soluble lead had detections up to 22 milligrams per liter (mg/1). Total lead was not detected at elevated levels at depths of five feet bsg. Lead was detected in the duplicated samples AA, BB and CC, at concentrations ranging from 66 mg/kg to 94 mg/kg;while soluble lead had detections up to 8 mg/l. A solid/liquid sample from the on-site septic system was also collected for analysis.Low levels of TEX(no VOCs otherwise);and TRPH,TPH-g and TPH-d were also detected at concentrations up to 4,400 mg/l.Low levels of lead were detected in the liquid samples at 2.6 mg/1 and total lead was detected in the solid matrix of the septic waste at 120 mg/kg; while soluble lead was detected at 0.6 mg/1. The septic system remains on the site, however the use of the site septic system is not known. In the third quarter of 1997,a work plan implemented to collected soil samples and characterize the site soils for"potential treatment testing"and collected six soils samples from set of five locations across the northern portion of the site(BSS and SS-1 through SS-3 and through SS-6).The samples were collected from trenches using a backhoe. The samples were selectively submitted to a laboratory for lead analysis(including soluble lead). Six samples were analyzed and low levels of soluble were detected in two samples collected from one(BSS-1),one and one-half feet bsg(SS-5). Total lead was detected in sample BSS-1 at 28 mg/kg. Advanced GeoEnvironmental,Inc.