Laserfiche WebLink
t" <br /> WI-S FI: R4 <br /> G ") LOGIC RESOURCHS , INC , <br /> 1 INTRODUCTION <br /> This report presents the results of the subsurface investigation coeducted by Western Geologic <br /> Resources,Inc.(WGR)at Apache Plastics,Inc,(AFI)located at 2050 East Fra <br /> mont Street is Stockton, <br /> California(Figure 1). The objective of the investigation was to determine whether fuel hydrocarbons <br /> are present in the soil and shallow groundwater beneath the site. <br /> - 1.1 SCOPE OF WORK <br /> As requested,the following scope of work was performed: <br /> 1) Drill four soil borings,one located near the former underground storage tank,and <br /> sample the soil at approximately 5 ft intervals for lithologic and hydrogeolagic <br /> description and possible chemical analyses; <br /> 2) Analyze selected soil samples for total purgeable petroleum hydrocarbons(TPPH)and <br /> ., aromatic hydrocarbons including benzene,toluene,ethylbenzene and xylenes(STEX) . <br /> by EPA Method 8240; . <br /> r I <br /> 3 Complete borings B-1 and B-2 as 4-inch diameter monitor wells NW-1 and M111-2, <br /> j respectively and borings B-3 and B-4 as 2-inch monitor wells MW-3 and MW-4, <br /> respectively; <br /> a� E <br /> 4) Develop and sample the monitor wells for chemical analyses; <br /> 5) Analyze the groundwater samples for TPPH and aromatic hydrocarbons by EPA l <br /> Method 8240; <br /> 6) Survey(OP-017-casing elevations for the monitor wells and collect depth-to-groundwater, <br /> depth-to-liquid hydrocarbons, liquid-hydrocarbon thickness, and well-casing volume <br /> measurements in all groundwater monitor wells and prepare a potentiometric surface <br /> map of the shallow groundwater based on the liquid-level measurements; <br /> 7) Conduct a well survey for a one-half mile radius around the site;and, <br /> 8) Review the data and prepare a report of the investigation. <br /> tit 065RIN09 <br /> 1 <br />