Laserfiche WebLink
INTRODUCTION <br /> Scope And Purpose <br /> This work plan was prepared as directed by Michael J. Infurna, Jr., Senior REHS <br /> of the San Joaquin County Environmental Health Department as per his fax <br /> communication dated March 26, 2003. The purpose and scope of this work plan <br /> is to describe the manner in which we propose to discover and delineate the <br /> extent of diesel contamination at a former asphalt plant at the subject site. The <br /> information obtained will be used to develop a "corrective action plan". This plan <br /> will subsequently be submitted for review and approval. As previously <br /> discussed, Teichert Aggregates would like this effort to be classified as an in- <br /> house "voluntary" clean up activity. <br /> Site Location and Description <br /> The site is located at the very end of South Macarthur Road in the City of Tracy, <br /> CA. (see maps attached). The topography of the immediate area is relatively <br /> flat-lying. The surface is alluvium consisting of lenticular mixture silts, <br /> gravels, and sands. Depth to groundwater at the site is 90 feet as test by using <br /> geo-sounding equipment. <br /> Currently the site is being converted to agricultural use. The former <br /> underground asphalt tanks and the related equipment have been removed. The <br /> tank pit and adjacent areas have been left open for further investigation activities. <br /> BACKGROUND <br /> Summary of Activities and Previous Investigation <br /> As a result of ongoing reclamation activities, piping and underground storage <br /> tanks from a former asphalt plant operation were discovered on the site in early <br /> 2002. The tanks contained hardened asphaltic materials and water that had <br /> accumulated on top of the material. After further research and conversations <br /> with various agencies and environmental firms, it was determined that the tanks <br /> would be considered exempt from current UST removal regulations because they <br /> contained materials that were non-hazardous. <br /> 4 <br />