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I <br /> ExxonMobil ADC Summary <br /> I The ExxonMobil ADC Site was a former petroleum bulk storage and distribution facility located <br /> south of and adjacent to the Kimberly-Clark Worldwide Site in Everett, Washington. Extensive <br /> characterization and sampling activities have been conducted at the Site since 1985. Analyses <br /> I conducted in soil and groundwater include volatile organic compounds (VOCs); semivolatile <br /> organic compounds (SVOCs); TPH-Gasoline (TPH-G), -Diesel (TPH-D), and—Oil (TPH-O); and <br /> select metals. <br /> ILiquid-phase petroleum hydrocarbons (LPH) have been observed in groundwater wells, <br /> trenches, sumps, and excavations at the Site since environmental investigations began. The LPH <br /> I varies in nature from TPH-G to TPH-D to heavier TPH-O fractions, and all of the LPH is generally <br /> characterized as "weathered" in various laboratory reports. <br /> The Site has been delineated based on the results of the past investigations. The Site includes <br /> Ithe Property and extends onto adjacent areas owned by the City of Everett (e.g., Federal <br /> Avenue), BNSF, K-C, and the Port of Everett. <br /> I The groundwater and soil contaminants of concern (COCs) to be addressed at the Site are listed <br /> in the table below. <br /> I • benzene • TPH-G <br /> • ethylbenzene • TPH-D <br /> I • xylenes • TPH-O <br /> • Carcinogenic Polycyclic Aromatic <br /> • 1-methylnaphthalene Hydrocarbons (cPAHs) <br /> The maps provided on the next page show petroleum contamination identified at the Site. The <br /> I first map is from the August 23, 2019 Focused Feasibility Study report. The next set of maps, <br /> which shows petroleum contamination in soil and locations of LPH plotted on aerial photos, <br /> was generated by Ecology in 2018 based on results from past investigations. <br /> 1 <br /> 1 <br /> I <br /> I <br /> I <br /> I <br />