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�E/NFELDER <br /> anynraoW..aynesaonow <br /> 4 RECORDS REVIEW <br /> 4.1 STANDARD ENVIRONMENTAL RECORD SOURCES <br /> The purpose of the records review was to obtain and review records that would help to evaluate <br /> RECs of potential concern in connection with the subject Site and bordering properties. Federal, <br /> state and local regulatory agencies publish databases or 'lists" of businesses and properties <br /> that handle hazardous materials or hazardous waste, or are the known location of a release of <br /> hazardous substances to soil and/or groundwater. These databases are available for review <br /> and/or purchase at the regulatory agencies, or the information may be obtained through a <br /> commercial database service. Kleinfelder contracted a commercial database service, EDR of <br /> Shelton, Connecticut to perform the government database search for listings within the <br /> appropriate ASTM minimum search distance of the Site. Kleinfelder provided EDR with a Site <br /> map to incorporate the search distances from the Site boundary. Included in The EDR Radius <br /> MapTm Report with GeoCheck® is a listing of specific databases outlined by the ASTM <br /> Standard. A listing of the search distances, databases evaluated, dates the databases were last <br /> updated, and types of information contained in each database are included in the regulatory <br /> database search provided as Appendix B to this report. <br /> EDR utilizes a geographical information system to plot the locations of reported spills, leaks, <br /> incidents, etc. Kleinfelder reviews this information to help establish if the Site, or nearby <br /> properties, have been included in the noted databases and lists. Each of the listings was <br /> reviewed to assess whether the corresponding property details included in the EDR report <br /> revealed a potential environmental impact to the Site. A number of listings in the EDR database <br /> report were found not to have the potential to impact the Site based on the following, or a <br /> combination thereof: <br /> • The listed property was located at a distance where the facility would be unlikely to <br /> impact the Site based on Kleinfelder's evaluation of the relevant data in the EDR report <br /> and knowledge of the Site vicinity. <br /> • The listed property was located in a down-gradient or cross-gradient direction from the <br /> Site, based on the anticipated direction of groundwater flow at the property being <br /> evaluated, and is located at a distance that would be unlikely to impact the Site. Note <br /> 20172543.001A/ST016R49461 Page 14 of 54 November 2, 2016 <br /> ©2016 Kleinfelder w .kleinfelder.com <br />