The February 10, 2010 Federal Register contains a notice of EPA’s final decision that the Baton Rouge ozone nonattainment area “has attained the 1-hour ozone National Ambient Air Quality Standard (NAAQS).” (The Baton Rouge area consists of the parishes of Ascension, East Baton Rouge, Iberville, Livingston, and West Baton Rouge.) EPA found that the ambient monitoring data for 2006-2008 demonstrated attainment and noted there were no exceedances of the standard in 2009. Although this 1-hour ozone standard was revoked in 2005 and replaced with a more stringent 8-hour standard, some of the SIP requirements associated with the old 1-hour standard were continued under the Clean Air Act’s “anti-backsliding” provisions. The EPA action, known as a “Clean Data Policy Determination,” formally suspends several requirements associated with the Louisiana Department of Environmental Quality’s (“LDEQ’s”) State Implementation Plan (“SIP”) as long as the area continues to achieve the 1-hour standard. These suspended requirements include “a severe attainment demonstration, a severe reasonable further progress plan (RFP), applicable contingency measures plans, and other planning State Implementation Plan (SIP) requirements related to attainment of the 1-hour ozone NAAQS.”
Continue Reading EPA Recognizes That Baton Rouge Area Attained the 1-Hour Ozone Standard