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through the hollow stem auger. Each well was constructed of two inch PVC well casing with ten or fifteen feet of screen between 35 to 50 feet bgs. (See monitoring well construction details attached). The monitoring wells were developed and purged by the standard methods used by the industry and approved by the PHS/EHD.Before water sampling,the depth to water was recorded for each monitoring well.Water samples were extracted from the well and sealed for analysis.The elevation of the monitoring well casings was determined by survey with Datum = 95.115' at the top of casing of MW44. The elevation of the water table in each monitoring well was determined and a hydraulic gradient was calculated. The optional soil boring and monitoring well located in the northwest corner of the Beacon Gasoline Service Station on the south side of Kettleman Lane was not installed Sample Analysis Soil samples selected for analysis were transported under chain of custody to GeoAnalytical Laboratories for analysis.Soil samples were analyzed by EPA methods 8020(BETX),and 5030/8015(M)LUFT(TAH Gasoline)and EPA method 8260. Water samples were analyzed by EPA methods 602, 8260 and 5030/Luft. Results of all sample analyses are attached in original and recap form_ Findings From Sample Analysis Contamination of BTEX and TPHg in low concentrations was found in the water bearing strata of monitoring wells MW#2 and GMX1. Soil samples in same water bearing strata from 40'bsg and 50'bsg were found to contain low levels of BTEX and TPHg. The water samples taken from all of the monitoring wells contained low levels of MTBE ranging froml.6 ug/L to 52 ug/L. Tertiary-butanol was detected in MW#2 at 24 ug/L and GMX1 at 52 ug/L. Conclusions Soil sample analyses indicate that the contamination path from the source to the water table has not been located. All borings and direct push samples show a layer of clean soil (not contaminated) of more than twenty feet between the water table and the nearest contaminated soil. It is assumed that most likely source location of this contamination is the south west corner of the tank excavation or directly west of the tank excavation. The author questioned the owners of Sun West Liquors about the possibility of other underground tanks in the area west of the tank excavation.The owners had no knowledge of any other underground storage tanks on the property. The suspect location on the property was previously used as a vegetable stand and a small restaurant. It is unlikely these businesses had underground storage tanks. The water sample analysis from monitoring well GMX1 indicates a reduction of greater than 50% in BTEX, TPHg and MTBE. These reductions are significant, but may be explained by the grab sample method used to collect the April 28, 1999 sample.This sample was obtained during well construction and may not accurately represent the contamination levels of the water table.The sample obtained on 7/12199 was extracted using accepted standard industry practices. Recommendations The reduction in the levels of contamination in monitoring well GMXI is encouraging and may indicate the removal of the source and the natural degradation and mineralization of the hydrocarbons in the groundwater. Foothill Engineering recommends that the quarterly sampling of all the monitoring well 2