Środowisko i energia · 22.09.1994

Approval and Promulgation of State Implementation Plans: Idaho

The Environmental Protection Agency (EPA) proposes to take action on the state implementation plan (SIP) submitted by the State of Idaho Division of Environmental Quality (State or IDEQ) for the purpose of bringing about the attainment of the national ambient air quality standards (NAAQS) for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM-10) in the Ada County/Boise area. The SIP was submitted by the State to satisfy certain Federal requirements for an approvable moderate nonattainment area PM-10 SIP for Ada County/Boise, Idaho. In summary, EPA proposes to grant full approval of the emissions inventory and PM-10 precursor exclusion elements of the SIP because they are separable and independent elements. EPA proposes limited approval under sections 110(k)(3) and 301(a) of the Clean Air Act (CAA) of the control measures that have been submitted by the State to date. This limited approval of the control measures is for the limited purpose of making them federally enforceable and thereby advancing the Clean Air Act NAAQS-related air quality goals. At the same time, EPA is proposing to disapprove the control measures as not satisfying