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1 WALLACE - KUHL GROUNDWATER MONITORING WELL INSTALLATION <br /> Er ASSOCIATES INC. WORKPLAN <br /> i <br /> Mountain House Specific Plan III Storm Water Detention Basin <br /> 1 Mountain House, California <br /> WKA No. 6504.05 <br /> ' August 26, 2005 <br /> 1 INTRODUCTION <br /> ' To support the design of a storm water detention basin within the proposed <br /> Mountain House development, four groundwater monitoring wells will be <br /> installed. The purpose of the monitoring wells will be to obtain groundwater <br /> 1 ' elevation, gradient, and flow direction data, and to collect groundwater samples to <br /> ! <br /> identify baseline water quality parameters. The data will be used by the civil <br /> engineering contractor and landscape engineer to determine design parameters for <br /> 1" the detention basin and selection of plants best suited for the quality of water <br /> encountered. The site location, preliminary location of the detention basin, and <br /> 1 proposed well locations are shown on Figure 1. Three of the four proposed wells <br /> are located on San Joaquin County Assessor's Parcel Number(APN) 209-060-031 <br /> at 19855 West Grant Line Road and the fourth well is located on APN 209-060- <br /> 011 at 19300 West Grant Line Road. The site is located within a predominately <br /> agricultural area that is currently a combination of fallow and hay cropland. <br /> t <br /> ' FIELD ACTIVITIES <br /> ' Four groundwater monitoring wells will be installed at the locations presented on <br /> Figure 1. The scope of work for the installation of the groundwater monitoring <br /> wells will include: <br /> • Obtaining a well permit from the San Joaquin County Environmental <br /> 1 Health Department; <br /> • Drilling four borings to a depth of approximately 25 feet below ground <br /> 1surface; <br /> • Constructing a monitoring well in each of the four borings; <br /> • Developing each monitoring well; <br /> l� <br />