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Onion Ice Plant <br /> Project 189-271 <br /> w <br /> 1.0 PROJECT IDENTIFICATION <br /> This project has been developed to explore a parcel of <br /> property known as Union Ice Company. This work plan <br /> will explore the possibility of total petroleum <br /> hydrocarbon contamination at this site. <br /> E > <br /> 1.1 Legal Description <br /> Parcel 3 of the San Joaquin County Assessors map <br /> number 151-12 identifies this property as a 0.95 acre <br /> parcel. The physical address is 425 North Union <br /> Street. This parcel is known as Union Ice. (Figure <br /> 1). <br /> 1.2 Site History/Background <br /> e- <br /> On September 22, 1989 Union lee Compan executed a <br /> contract for the removal of the two (2� remaining <br /> underground storage tanks located on the property. <br /> These two (2) tanks were 100 and 500 gallons in <br /> capacity. The 100 gallon gasoline tank was located in <br /> the northwest corner of the service yard. The 500 <br /> gallon waste oil tank was located under the sidewalk <br /> ust south of the main plant on North Union Street <br /> Figuree 2). During the excavation high levels of <br /> petroleum hydrocarbons were encountered at both <br /> locations. The underground storage tanks were removed <br /> and the excavations were backfilled and covered with <br /> several inches of pea gravel. <br /> Because of this contamination, this work plan was <br /> developed to investigate this site. Analytical data <br /> from soil samples collected from beneath the tanks at <br /> the time of removal were not available at the time <br /> development. <br />