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• WORK PLAN 0 • <br /> FOR GROUND WATER WELL INSTALLATION AND MONITORING <br /> PORT OF STOCKTON-ROUGH AND READY ISLAND,CALIFORNIA <br /> MW-3s X <br /> MW-3p X <br /> MW-4s X <br /> MW-4p X <br /> MW-5s X <br /> MW-5p X <br /> 3.2.2 Soil Logging and Sampling <br /> The boreholes for the monitor wells will be advanced using hollow-stem auger drilling <br /> equipment. The monitor wells will be constructed within the hollow-stem auger. Soil <br /> samples will be collected from the borehole as needed to identify the geologic unit. Soil <br /> samples are also proposed for laboratory analysis. <br /> Soil samples will be collected ever five feet during the boringprocess. These samples <br /> p Y <br /> P p <br /> will be sent to a state approved laboratory and analyzed for various organic and <br /> inorganic constituents. Organochlorine pesticides (OCPs) will be evaluated using EPA <br /> Methods 8081, total petroleum hydrocarbons will be analyzed using EPA Method 418.1, <br /> and polycyclic aromatic hydrocarbons will be analyzed using EPA Method 8310. <br /> Organophosphorus pesticides (OPP's) will be analyzed using EPA Method 8141. <br /> Polychlorinated biphenyls (PCB's) will be analyzed using EPA Method 8082. <br /> Tributyltin will be analyzed using Krone et al which is a gas chromatography/mass <br /> spectroscopy analysis. Methyl mercury will be analyzed using EPA Method 1630. <br /> Inorganic metals will be analyzed using EPA Method 6010 and EPA Method 7470. Title <br /> 22 metals include antimony, arsenic, barium, beryllium, cadmium, chromium, cobalt, <br /> copper, lead, mercury, molybdenum, nickel, selenium, silver, thallium, vanadium, and <br /> zinc. EPA Method 6010 also screens for cationic aluminum, calcium, iron, magnesium, <br /> manganese, potassium, and sodium in addition to Title 22 metals. Boron will also be <br /> screened for using EPA Method 6010. <br /> Geotechnical and engineering tests will also be conducted on soil samples. Data will be <br /> collected on ground water elevation, zones of saturation, and soil permeability at the <br /> time of sampling. Logs of lithology will also be recorded. The depth of the peat layer <br /> and its thickness will also be recorded at the time of sampling. A determination of the <br /> depth and thickness of the peat layer will also be made, based on the method of well <br /> construction discussed below. A grain size test using ASTM D422 and a hydraulic <br /> conductivity test via falling head using ASTM D5084 will also be performed. A density <br /> test using D854 and a consolidation test using ASTM D2435 will also be performed. <br /> September 2014 9 Environmental Risk Services `in�.w r <br /> Corporation .w J <br />