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Lake and Porter Counties Requests for Redesignation and Maintenance Plans

Following are Requests for Redesignations and Maintenance Plans Indiana has submitted to United States Environmental Protection Agency (U.S. EPA) for Lake and Porter Counties, Indiana, listed by applicable National Ambient Air Quality Standard (NAAQS).


2008 8-Hour Ozone Standard
1997 8-Hour Ozone Standard

Particulate Matter (PM)

1997 Annual Fine Particles (PM2.5) Standard

View redesignation and maintenance plans specific to Lake County

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