Laserfiche WebLink
Former Brien Ford Property <br /> Everett, Washington Phase II Supplemental Site Investigation <br /> continuously logged in general accordance with the Unified Soil Classification System (USCS) <br /> and field-screened for potential evidence of contamination. Field-screening included making <br /> visual observations and notations of odor, and conducting headspace analysis using a <br /> photoionization detector (PID) to detect the presence of VOCs. Two soil samples were collected <br /> from each boring in separate 1-foot intervals. In general, sample intervals selected for analysis <br /> were based on field-screening observations to vertically delineate the potential extent of <br /> encountered soil contamination. If no indications of contamination were observed, AESI <br /> sampled the soil interval corresponding to the approximate depths of contaminants <br /> encountered in nearby borings and/or the deepest soil sample interval. Detailed exploration <br /> logs are attached. <br /> Soil samples were collected from the plastic sample tube using stainless steel spoons and/or <br /> U.S. Environmental Protection Agency (EPA) Method 5035A sampling kits, and then placed in <br /> appropriate sample containers supplied by the laboratory. <br /> Reconnaissance ground water samples were collected from all of the direct-push borings that <br /> encountered sufficient water to obtain a sample. The reconnaissance ground water samples <br /> were collected using a peristaltic pump and utilizing low-flow sampling techniques. Three of the <br /> 17 borings (GP-15, GP-16, and GP-24) produced a sufficient amount of water for collection of a <br /> ground water sample at these locations. <br /> Soil and reconnaissance ground water samples were placed directly into laboratory-prepared <br /> glass sample containers labeled with the site name, date, time, exploration number, sample <br /> number, and sampling personnel. Sample containers were placed in a chilled cooler <br /> immediately after sampling, and subsequently transported to the analytical laboratory by AESI <br /> under standard chain-of-custody protocols. <br /> Drilling equipment was cleaned using an Alconox® wash and potable water rinse prior to <br /> beginning drilling at each soil boring. Sampling equipment was cleaned using an Alconox® wash <br /> and potable water rinse prior to collecting each soil sample. Ground water samples were <br /> collected using polyvinyl chloride (PVC) well screens and low-density polyethylene (LDPE) <br /> tubing.The PVC screen and tubing were discarded after each sample collection. <br /> Soil cuttings and equipment decontamination water generated during the field activities were <br /> placed in Department of Transportation (DOT)-approved, 16-gallon steel drums, closed, and <br /> appropriately labeled with project-specific information and initial accumulation date. The <br /> drums are currently stored on the south end of the detail shop pending disposal. <br /> LABORATORY ANALYSIS <br /> Soil and reconnaissance ground water samples collected from each boring were submitted for <br /> laboratory analysis to Friedman & Bruya, Inc., located in Seattle, Washington. The samples were <br /> analyzed for the following constituents: <br /> March 31,2017 ASSOCIATED EARTH SCIENCES,INC. <br /> TWL/Id-20160594V002-2-Projects120160594IKVIWP Page 3 <br />