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10 September 2012 <br /> AGE Project No , 11 - 1847 <br /> Page 4 of 9 <br /> will be presented in a reportwith the findings and recommendations. Electronic deliverable <br /> format (EDF) files of the laboratory analytical results will be submitted to the State of <br /> California GeoTracker database . <br /> 2 .4 . MONITORING WELL INSTALLATION <br /> After the initial phases of investigation , the installation of monitoring wells are proposed . <br /> Pilot borings for wells will be drilled and advanced to approximately 40 feet bsg utilizing a <br /> truck-mounted , hollow-stem drill rig equipped with 8 .25-inch diameter hollow-stem augers . <br /> Total depths of borings will vary according to hydrogeologic conditions encountered during <br /> drilling . <br /> The specific number and proposed locations for wells will be identified in an Addendum <br /> submitted to the SJCEHD for approval after the initial phases of investigation have been <br /> completed . Procedures for well installation and completion are presented in Sections 3 .2 , <br /> and 3 . 3 . <br /> 2 .4 . 1 , Soil Sample Collection and Analysis <br /> During well installations , we anticipate collection of soil samples from within the 8 .25-inch <br /> hollow-stem augers at 5-foot intervals. Selected soil samples will be analyzed by a CDPH- <br /> certified laboratory for contaminants listed in Section 2 . 3 . Laboratory reports of soil <br /> analyses , testing methods, laboratory QA/QC reports , and sample chain of custody <br /> documentation will be presented in a report. <br /> 2 .4 .2 . Well Development and Survey <br /> Following installation , each well will be developed to maximize water flow and minimize the <br /> amount of fine-grained sediment drawn into the well during pumping or bailing . After <br /> development, elevation and location of all wells will be surveyed by a professional <br /> surveyor. Procedures for development and survey are presented in Section 3 .4, <br /> 2 .4 .3, Groundwater Sampling and Analysis <br /> Following installation, groundwater monitoring and sampling activities will be conducted for <br /> all monitoring wells on a quarterly basis for a minimum of one year (four sampling events). <br /> Monitoring activities will include recording depth to groundwater measurements and <br /> Advanced GeoEnvironmental, Inc. <br />