FGD and DeNOx
NEWSLETTER       

January 2010
No. 381

Memphis Area Proposed in Attainment for 8-hr. Ozone Standard

On February 26, 2009, the State of Tennessee, through the Tennessee Dept. of Environment and Conservation, Air Pollution Control Division, submitted a request to redesignate the Tennessee portion of the bi-State Memphis, Tennessee-Arkansas 8-hour ozone nonattainment area (the “bi-State Memphis Area”) to attainment for the 1997 8-hour ozone National Ambient Air Quality Standard (NAAQS); and to approve the State Implementation Plan (SIP) revision containing a maintenance plan for the Tennessee portion of the bi-State Memphis Area. EPA is now proposing to approve the redesignation request for Shelby County, TN as part of the Memphis Area. Additionally, EPA is proposing to approve the 1997 8-hour ozone NAAQS maintenance plan for Shelby County. The State of Arkansas has submitted a similar redesignation request and maintenance plan for the Arkansas portion of this 8-hour ozone area. EPA is taking action on Arkansas’ redesignation request and maintenance plan through a separate rulemaking action.

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