Determinations of Attainment by the Applicable Attainment Date for the Hayden, Nogales, Paul Spur/Douglas PM10 Nonattainment Areas, Arizona
air-emissions · Rule · Published 2010-11-02 · Effective 2011-01-03 · AZ · 75 FR 67220
Document
Document number
2010-27634
Federal Register citation
75 FR 67220
CFR reference
40 CFR 81
Type
Rule
Action
Direct final rule.
Category
air-emissions
Publication date
2010-11-02
Effective date
2011-01-03
State
AZ
EPA docket
EPA-R09-OAR-2010-0718
Abstract
EPA has determined that the Hayden, Nogales, and Paul Spur/ Douglas nonattainment areas in Arizona attained the National Ambient Air Quality Standard (NAAQS) for particulate matter with an aerodynamic diameter of less than or equal to a nominal ten micrometers (PM<INF>10</INF>) by the applicable attainment date of December 31, 1994. On the basis of this determination, EPA concludes that these three "moderate" nonattainment areas are not subject to reclassification by operation of law to "serious." Lastly, on the basis of a review of more recent ambient monitoring data, EPA has determined that the Hayden, Nogales, and Paul Spur/Douglas nonattainment areas are not currently attaining the PM<INF>10</INF> standard.