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Note: EPA no longer updates this information, but it may be useful as a reference or resource.

Please see www.epa.gov/nsr/ for the latest information on EPA's New Source Review program.

January 30, 1990 Comment on the Permit Proposed by the Indiana Department of Environmental Management (IDEM) for Northern Indiana Public Service Company's (NIPSCO) Bailly Generating Station 4.47

The new control device and related improvements under the Clean Coal Technology (CCT) program at the NIPSCO Bailly generating station are not "major modifications" under NSR or "modifications" under NSPS. The backup diesel generator is also not a major modification if operating limits are federally enforceable. If a source solely adds or enhances systems or devices whose primary functions are the reduction of air pollution, and are determined to be not less environmentally beneficial than any emission control system or device they replace, if any, such activities would not trigger new source requirements.
Notebook Entries: 2.34

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