Approval and Promulgation of Air Quality Implementation Plans; Indiana
air-emissions · Rule · Published 2006-05-23 · Effective 2006-07-24 · IN · 71 FR 29588
Document
Document number
06-4765
Federal Register citation
71 FR 29588
CFR reference
40 CFR 52
Type
Rule
Action
Direct final rule.
Category
air-emissions
Publication date
2006-05-23
Effective date
2006-07-24
State
IN
EPA docket
EPA-R05-OAR-2006-0002
Abstract
EPA is approving revisions to the Indiana particulate matter (PM<INF>10</INF>) State Implementation Plan (SIP). These revisions are for sources at the ASF Keystone, Inc. (Keystone) coil spring manufacturing facility in Lake County, Indiana. On December 15, 2005, Indiana requested revisions that will increase the PM<INF>10</INF> emission limit for one unit and reduce the limits for two units. The changes result in a net decrease of 1.77 pounds PM<INF>10</INF> per hour (lb/hr) in the allowable emissions. The emission limits for a fourth unit that has shut down were also removed. Indiana also requested removing the process weight rate limits and using lb/hr as the short-term emission limit. The maximum permissible PM<INF>10</INF> emissions will not increase after removing the process weight rate limits because of the net decrease in short-term emission limits.