Gelman Sciences, Inc. Site of Contamination Information Page

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This DEQ-Operated web page is intended to provide current and historical information on the investigation and remediation of groundwater contamination in Scio Township and the west part of the city of Ann Arbor in Washtenaw County.


What's New

The links below include the most current information on each topic, and all previous information for each topic follows the most recent posting.

List of Recent Documents Provided to Information Repositories   

Summary of Recent Response Actions March 2004 

Selected Documents 

NPDES Permit 

Recent Analytical Data   

Periodic DEQ E-mail Updates

DEQ Gelman Access Database (Data through March 2017)


 Information Bulletin/Fact Sheets

May 2009 Proposed Modifications of Consent Judgment and Court Orders Regarding the Gelman Sciences, Inc. site 
March 2007 PZ Fact Sheet 

July 2005 Fact Sheet: Prohibition Zone to Restrict Use of Groundwater 

March 2005 Fact Sheet: Proposed Zone to Restrict Use of Groundwater 

July 2004 Gelman Fact Sheet 

March 2004 Bulletin 


  Legal Documents


 Public Comment and Meeting Schedules

  Information Repositories, Document List and Contact Information

  • Information Repository Locations 

  • NEW: The above link opens an Excel spreadsheet updated with documents provided as of March 30, 2011. The "System" names have been updated to reflect changes/additions related to the Third Amendment to Consent Judgment (effective March 8, 2011). The former "Western System" has been renamed "Little Lake Area System". Two new systems will replace the previous system nomenclature: "Western Area System" (west of Wagner Road) and "Eastern Area System" (east of Wagner Road). No documents will be added under the following system names: Core, Evergreen (EG), Marshy, Soils, Spray Irrigation Field (Spray) or Unit E. For documents posted after March 30, 2011, see: "List of Recent Documents Provided to Information Repositories" under "What's New").

 For Further Information Contact:

            Site Contamination & Remediation, Dan Hamel , 517-745-6595
            NPDES Permit, Jeffrey Surfus , 517-780-7921
            Drinking Water, Lois Graham , 517-284-6530