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N <br /> 16 August 2011 <br /> AGE-NC Project No. 97-0301 <br /> Page 2 of 11 <br /> • Preparation of reports. <br /> Each of these tasks are discussed below in detail . <br /> 2 . 1 . PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site permits will be obtained from City of Stockton Municipal Utilities District <br /> (sanitary sewer waste discharge) San Joaquin County (i . e . building , electrical , etc. ) , from <br /> the SJCEHD (i . e . drilling/well installation permits) and from the San Joaquin County Air <br /> Pollution Control District (SJCAPCD). In addition, an update to the health and safety plan <br /> presently on-file will be prepared in accordance with Occupational Safety and Health <br /> Guidance Manual for Hazardous Waste Site Activities (National Institute for Occupational <br /> Safety and Health Administration , U .S . Coast Guard and U .S . Environmental Protection <br /> Agency, 1985 ). Prior to mobilization , all underground boring and trenching areas will be <br /> clearly marked and a utility clearance obtained through Underground Service Alert. <br /> 2 .2 . INSTALLATION OF DPE WELLS <br /> For enhancement of DPE remedial operations , AGE proposes to advance pilot borings for <br /> the installation of two on-site DPE wells. Wells are proposed in the following areas: <br /> • One DPE well will be single-completed in the northern portion of the former UST <br /> area , approximately 13 feet southwest of well MWA and screened between 10 and <br /> 40 feet bsg); <br /> • One DPE well will be single-completed in the southern portion of the former tank pit <br /> area approximately 19 feet southwest of well VW- 1 and screened between 10 and <br /> 40 feet bsg ). <br /> 2 .3 . WELL DEVELOPMENT AND SURVEY <br /> Following installation , each of the two DPE wells will be developed to maximize water flow <br /> and minimize the amount of fine-grained sediment drawn into the well during active <br /> extraction . After development, the top of each well casing (well head ) will be surveyed by <br /> a California registered survey engineer to determine its elevation relative to the North <br /> American Vertical Datum 88 (NAVD88) and global positioning system (GPS ) . Upon survey <br /> completion , the elevations and GPS coordinates will be submitted to the State of California <br /> GeoTracker database . Procedures for well development and survey are presented in <br /> Section 3 .2.3 . <br /> Advanced GeoEnvironmental, Inc. <br />