Approval and Promulgation of Implementation Plans; Washington: Kent, Seattle, and Tacoma Second 10-Year PM10 Limited Maintenance Plan
air-emissions · Rule · Published 2014-08-20 · Effective 2014-09-19 · WA · 79 FR 49239
Document
Document number
2014-19554
Federal Register citation
79 FR 49239
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2014-08-20
Effective date
2014-09-19
State
WA
EPA docket
EPA-R10-OAR-2013-0713
Abstract
The EPA is approving a limited maintenance plan submitted by the State of Washington on November 29, 2013, for the Kent, Seattle, and Tacoma maintenance areas for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>). The EPA first identified these areas in 1987 as potentially violating the 24-hour PM<INF>10</INF> national ambient air quality standard (NAAQS). All three areas have been attaining the NAAQS since 1990, due to State Implementation Plan (SIP) measures such as a residential wood smoke control program, a prohibition on outdoor burning, and industrial controls. The areas were redesignated to attainment for the 24[hyphen]hour PM<INF>10</INF> NAAQS effective May 2001, when the EPA approved the first 10[hyphen]year maintenance plan. This limited maintenance plan covers the second 10-year maintenance period ending in May 2021. The EPA received one set of adverse comments focused primarily on proposed coal export terminals that may be built in the Pacific Northwest or possible expansion of coal export terminals in Canada that may impact the three maintenance areas in the future.