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KLE/NFELDER <br /> 6n9M11 hack.PgM1I YW w'n. <br /> 3 BACKGROUND REVIEW <br /> Background file review was conducted to evaluate potential contaminant migration into shallow <br /> soil (<_ 6 feet bgs) in the proposed Benjamin Holt roadway improvement alignment between <br /> Pacific Avenue and Gettysburg Place. Kleinfelder's background review included reports <br /> supplied by SJCPW (Appendix E) and information obtained on a State Water Resource Control <br /> Board (SWCRB) GeoTracker Website for the Site and nearby offsite properties within <br /> approximately ''/2 mile radius from the Site property. The GeoTracker Website was developed <br /> so that the SWRCB, regional boards and local agencies could "track and archive compliance <br /> data from authorized or unauthorized discharges of waste to land, or unauthorized releases of <br /> hazardous substances from underground storage tanks." Relevant information obtained from <br /> this Geotracker Website is included in Appendix F. <br /> Based on the background data research the project is within a known area of groundwater and <br /> soil vapor contamination due to VOCs generated from former dry cleaning operations in the <br /> Lincoln Center area. The nearest other area of concern was noted to be an adjacent Chevron <br /> Service Station (Chevron) located on the southwest corner of Benjamin Holt and Pacific <br /> Avenue. However there is no direct evidence reviewed from the Chevron information that <br /> would suggest shallow soil is impacted directly in the project area. It was evaluated that then <br /> was a low probability of shallow soil contamination due to VOCs from the former Lincoln Cenfar <br /> dry cleaning operations. <br /> Based on Kleinfelder's experience, it was Kleinfelder's preliminary opinion that residual heavy <br /> petroleum hydrocarbons might be present due to roadway construction operations (e.g. <br /> resulting primarily from asphalt pavement installation). <br /> 133385.4//ST013R0698 Page 4 of 12 January 7,2014 <br /> Copyright 2014 Kleinfelder <br />