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25 October 2016 <br />AGE Project No. 11-1847 <br />Page 8 of 8 <br />with a photo-ionization detector (PID). Soil sample descriptions and OVM readings will be <br />recorded on a log for each boring. <br />Following sample collection, each preserved sample sleeve will be labeled with the boring <br />location, depth, time, date, and sampler's initials. Appropriately sealed and labeled <br />samples will be placed in a chilled container and transported under chain of custody to a <br />CDPH-certified laboratory for analysis for the constituents listed in Section 2.2. <br />Boring B-10 will have an intermediately deep groundwater sample set collected, a push- <br />driven water sampling assembly (Hydropunch) will be advanced to near 55 feet below <br />grade within the saturated soil, and then retracted to expose a temporary well screen. <br />Groundwater samples will be extracted from the borehole by dedicated disposable or <br />polyethylene tubing through the hollow center of the push rods into the screen section. <br />Samples will be analyzed for the constituents listed in Section 2.2. and will be collected <br />into laboratory-supplied, preserved 40-milliliter (ml) Volatile Organic Analysis (VOA) vials <br />and 1-liter amber bottle containers (if required). <br />Appropriately sealed and labeled samples will be placed in a chilled container under ice <br />and transported under chain-of-custody procedure to a CDPH-certified laboratory. Each <br />sample container will be labeled with sample designation, time, date and sampler's <br />in <br />All soil borings will be permanently sealed to prevent vertical migration of potential <br />contaminants. The soil boring will be abandoned by backfilling with Portland type II <br />cement grout from the total depth to surface grade utilizing tremie procedures. The top <br />three to six inches of the boring abandonments will be completed flush to surface grade <br />with concrete. The EHD will be notified for grout inspection at least 72 hours prior to <br />conducting grouting procedures. <br />3.6. EQUIPMENT DECONTAMINATION/WASTE MANAGEMENT <br />All sampling tools will be thoroughly rinsed with clean water after being washed with a <br />solution of Alconox. All down-hole drilling equipment will be pressure washed prior to <br />starting each boring. Rinseate and soil cuttings generated during drilling and groundwater <br />sampling activities will be containerized in properly labeled, Department of Transportation <br />(DOT)-approved 55-gallon drums and stored on-site in an area lacking public access. <br />Disposal alternatives will be evaluated based on the results of soil analysis. <br />Advanced GeoEnvironmental Inc.