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Farmington Groundwater Recharge Program STC Work Plan—Hammer Site <br /> 2.1.2. Conduct Reconnaissance Level Biological and Cultural Assessments <br /> Preliminary assessment of the site is necessary to identify potential cultural and biological <br /> resource considerations. Before field investigation activities commence, biological and cultural <br /> resource surveys will be performed by qualified USACE staff. Findings will be documented and <br /> reviewed prior to field investigation activities. <br /> 2.1.3. Acquire Necessary Permits <br /> Drilling and well construction permits will be obtained from the San Joaquin County <br /> Environmental Health Department (the County) prior to commencement of drilling activities. A <br /> representative from the County will likely be present to inspect backfilling of soil borings and <br /> monitoring well grouting activities. <br /> 2.1.4. Determine Borehole Locations <br /> A total of ten boring locations will be sited in equally spaced increments throughout the site <br /> (Figure 3). Locations will be surveyed with the use of a survey quality global position satellite <br /> (GPS) receiver. <br /> 2.1.5. Mark Locations of Buried Utilities <br /> Aside from the concrete irrigation canal that runs along the northern portion of the site, Mr. <br /> Hammer stated that gas line also runs underground along the north portion of the site. However, <br /> prior to the boring investigation and monitoring well drilling, MWH will contact Underground <br /> Service Alert(USA)to insure utility clearances at the site. <br /> 2.1.6. Identify Potential Water Sources <br /> An underground irrigation canal conveys water to the site and is a possible water source for pilot <br /> recharge testing. The canal at the point entering the site is approximately 6 to 8 inches in <br /> diameter and appears to be concrete (Figure 2). The canal conveys water from a pump station <br /> located along the Mokelumne River to the northern border of the site just northeast of Mr. <br /> Hammer's residence. It is estimated that the canal is located 5 feet below ground surface (bgs). <br /> Other than this irrigation canal, no ditches, culverts or other canals were observed during the <br /> initial site walk. <br /> MWH 2-2 July 2004 <br />