Środowisko i energia · 19.11.2010

Finding of Substantial Inadequacy of Implementation Plan; Call for Utah State Implementation Plan Revision

Pursuant to sections 110(a)(2)(H) and 110(k)(5) of the Clean Air Act, EPA is proposing to find that the Utah State Implementation Plan (SIP) is substantially inadequate to attain or maintain the national ambient air quality standards or to otherwise comply with the requirements of the Clean Air Act. Specifically, the SIP includes Utah rule R307-107, which exempts emissions during unavoidable breakdowns from compliance with emission limitations. This rule undermines EPA's, Utah's, and citizens' ability to enforce emission limitations that have been relied on to ensure attainment or maintenance of the national ambient air quality standards or meet other Clean Air Act requirements. If EPA finalizes this proposed finding of substantial inadequacy, Utah will be required to revise its SIP to correct this deficiency within 12 months of the effective date of our final rule. If EPA finds that Utah has failed to submit a complete SIP revision as required by a final rule or if EPA disapproves such a revision, such finding or disapproval would trigger clocks for mandatory sanctions and an obligation for EPA to impose a Federal Implementation Plan. EPA is also proposing that if EPA makes such a