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- Area 11 is an old industrial area dating back to at least 1906. Past industries include Rockford Varnish, Rockford Coatings Corporation and Rockwell International Graphics. Some of these industries have documented use of chlorinated solvents, the main chemicals of concern for the project area. Past surface spills appear to have been the primary sources of Area 11 surface and subsurface soil as well as groundwater contamination. Chlorinated industrial solvents found in the remainder of the Southeast Rockford Project were detected in some Area 11 samples at low concentrations. Non-chlorinated solvents, often associated with petroleum products, however, were found in such high concentrations in Area 11 that the detection limit of the analytical equipment had to be raised considerably. There may have been relatively high concentrations of chlorinated solvents in Area 11 samples, but they may not have been detected because of the high detection limit of the analytical equipment.
Originally Deposited as: 22031
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Published By: Phone Number: Language(s): EN-English Volume or Year: 2001 Number or Issue: February Date Created: 05 25 2012 Date Last Modified: 05 25 2012 Librarian Remarks: |
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1. Source Area 11 Remedial Investigation Results (rock15.pdf).Document Size:28826 Software: Acrobat Distiller Version: 7.0
