Laserfiche WebLink
1 0 9 <br />1 <br />Harding Lawson Associates <br />September l I, 2000 <br />1 50441 <br />1 <br />1 <br />1 <br />11 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />Mr. Vidal Pedraza <br />San Joaquin County Public Health Service <br />Environmental Health Division (PHS/EHD) <br />304 North Weber Avenue, Third Floor <br />Stockton, California 95202 <br />Closure Report <br />UST Removal Project <br />445 Stockton Street- APN 145-240-42 <br />Newark Sierra Paperboard Corporation property <br />Stockton, California <br />Dear Mr. Pedraza: <br />On behalf of Newark Sierra Paperboard Corp. (Newark -Sierra), Harding Lawson Associates (HLA) submits <br />to the San Joaquin County Public Health Service Environmental Health Division (PHS/EHD) this closure <br />report for three 500 -gallon gasoline underground storage tanks (USTs) (two whole and one partial) located at <br />the above referenced site (Plates 1 and 2). The purpose of this report is to document the activities and <br />present the analytical results and related documents associated with the complete removal of these USTs <br />from the Site. UST removal activities were performed between June 26, and July 17, 2000 under City of <br />Stockton Fire Prevention Division (SFPD) permit number 00-137, issued on May 31, 2000, and PHS/EHD <br />permit issued on June 14, 2000. <br />SITE DESCRIPTION AND HYDROGEOLOGIC FRAMEWORK <br />The Newark Siena Paperboard Mills, a manufacturer of recycled paperboard products, is located at 800 West <br />Church Street in Stockton, California (Site) (Plates 1 and 2). The USTs were removed from Newark -Sierra <br />property located adjacent to the Newark -Sierra plant (Plates 2 and 3). Topography at the Site is essentially <br />flat and has an elevation of approximately 12 feet above mean sea level (USGS, 1967) with very little <br />topographic relief. The Site is just south of industrial facilities in the Port of Stockton and surrounding land <br />use is mainly industrial with minor residential areas. Interstate 5 is located just east of the Site. <br />The nearest major surface -water body is the San Joaquin River at the Stockton Deepwater Channel and <br />Turning Basin, located approximately 0.75 miles north of the Site. According to regional groundwater maps <br />compiled in spring of 1996 by the San Joaquin County Flood Control and Water Conversation District <br />(SJCFC/WCD), groundwater beneath the Site is 15 to 20 feet below ground surface (bgs) and flows toward <br />the east (SJCFC/WCD, 1996). A monitoring well network, consisting of four wells, surrounds a former fuel <br />oil UST location onsite. Groundwater level measurements during the last two years indicate that depths to <br />groundwater have ranged from 10 to 20 feet bgs and flow directions have varied from northeast through <br />southeast. <br />10265 Rockingham Drive, Suite 150, Sacramento, CA 95827 916/364-0793 Fax: 916/364-5633 <br />n <br />Engineering and <br />1 <br />Environmental Services <br />10265 Rockingham Drive, Suite 150, Sacramento, CA 95827 916/364-0793 Fax: 916/364-5633 <br />n <br />