The Missouri Department of Natural Resources is proposing revisions to the Missouri State Implementation Plan (SIP): New Madrid County Nonattainment Area Plan-2010 Sulfur Dioxide Standard. The department will hold two public meetings and a public hearing about the proposed plan. Please follow the links below for more information.
The department invites the public to review and offer written comments on the proposed plan until Dec. 19, 2022, which was extended from the original date of Dec. 8, 2022. Written comments may be submitted by mail to Missouri Department of Natural Resources, Air Pollution Control Program, ATTN: Air Quality Planning Section Chief, PO Box 176, Jefferson City, MO 65102-0176 or by email to apcpsip@dnr.mo.gov. Comments submitted by email are limited to 3 MB in size. Comments larger than 3 MB need to be submitted by mail to the address above.
The public can review the proposed revisions below. The purpose of this plan is to address the nonattainment area planning requirements for the sulfur dioxide nonattainment area located in New Madrid County. The plan includes new consent agreements for two major emitting facilities within the nonattainment area: 1) Magnitude 7 Metals LLC primary aluminum smelter and 2) Associated Electric Cooperative Inc.-New Madrid Power Plant. In addition to the new enforceable emission rates, the control strategy in this plan also includes building a new 65-meter stack at Magnitude 7. This plan demonstrates attainment for the New Madrid County sulfur dioxide nonattainment area using the newly established enforceable emission rates in an atmospheric dispersion modeling analysis.