Laserfiche WebLink
1.0 INTRODUCTION <br /> On behalf of Crop Production Services, Inc. (CPS), Rubik prepared this Pilot Test Work Plan for <br /> the CPS facility located at 1905 North Broadway Avenue in Stockton, San Joaquin County, <br /> California (site, see Figure 1). The work plan was requested by the California Regional Water <br /> Quality Control Board (RWQCB) during a February 16, 2017 meeting with CPS and Rubik. <br /> 1.1 Objectives <br /> The objectives of this project are to: <br /> • Evaluate if enhanced bioremediation and abiotic chemical reduction can be used to <br /> effectively decrease concentrations chemicals of concern (COCs) in the A-zone <br /> groundwater; and <br /> • Destroy monitoring/extraction wells that were not constructed to industry standards and/or <br /> are not being used for their intended purpose. <br /> 2.0 SITE DESCRIPTION <br /> The facility has operated as a retail distribution center of agricultural products since 1958 and <br /> currently sells liquid and dry fertilizers, pre-packaged fertilizers and pesticides. The current and <br /> former site features are depicted on Figure 2 and the groundwater monitoring well network is <br /> depicted on Figure 3. <br /> 3.0 SITE GEOLOGY AND HYDROGEOLOGY <br /> 3.1 Geology <br /> An approximation on the geology beneath the site is summarized in the diagram below: <br /> 0 <br /> Sandy/Clayey <br /> Silt <br /> 0 45— Discontinuous <br /> �0 A-zone Send/Silty Sand <br /> N 65 Lenses <br /> Silt/ <br /> Clayey <br /> Q Fine Sand/ <br /> 0 95 Clay <br /> Coarse Sand/ <br /> a? B-Zone Fine Gravel <br /> E110 <br /> X Silt/ <br /> 0 <br /> Q_ Sand/ <br /> Q Clay <br /> 150 <br /> C-Zone Sand& <br /> Gravel <br /> 190 <br /> CPS Stockton, California 1 � � <br /> Pilot Test Work Plan r�2 <br />