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N <br /> N <br /> 05 February 2015 <br /> AGE Project No . 07- 1529 <br /> Page 2 of 5 <br /> SCOPE OF WORK <br /> The scope of the work includes the drilling and installation of one ( 1 ) deep-screened <br /> monitoring well , two (2) deep-screened injection wells and three (3) shallow-screened <br /> groundwater monitoring wells . The scope of work will include the following tasks : <br /> • Permitting and pre-field work activities ; <br /> • Pilot drilling ; <br /> Monitoring and injection well installation and development; <br /> • Well installation reporting ; <br /> PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be obtained from the SJCEHD and City of <br /> Stockton ( Encroachment) . In addition , an update to the health and safety plan presently <br /> on-file will be prepared in accordance with Occupational Safety and Health Guidance <br /> Manual for Hazardous Waste Site Activities (National Institute for Occupational Safety <br /> and Health Administration , U . S . Coast Guard and U . S . Environmental Protection <br /> Agency , 1985) . Prior to mobilization , each proposed boring/well locations will be clearly <br /> marked and a utility clearance obtained through Underground Service Alert. <br /> DRILLING <br /> AGE proposes to advance a total of six (6) pilot soil borings to depths of 55 feet bsg <br /> (shallow monitoring wells) and 120 feet bsg (deep monitoring and injection wells) . Soil <br /> borings will be advanced using a truck-or track-mounted drill rig equipped with 8 .25-inch <br /> hollow-stem augers . Proposed well locations are illustrated in Figure 2 . Soil samples will <br /> not be collected during installation of the proposed wells . <br /> WELL INSTALLATION AND DEVELOPMENT <br /> Proposed pilot borings will be single-completed as shallow and deep monitoring wells <br /> and deep injection wells . The proposed monitoring/injection wells will be screened at <br /> depths between approximately 40 and 55 feet bsg (shallow monitoring ) and 100 feet <br /> and 120 feet bsg (deep monitoring/injection wells) . Depths of the screened intervals <br /> may vary or be reduced overall according to hydrogeologic conditions encountered <br /> during drilling . Following installation , each well will be developed to maximize water flow <br /> and minimize the amount of fine-grained sediment drawn into the well during pumping <br /> Advanced GcoEnvironmentaI, Inc. <br />