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DEQ outlines regional‑haze, ozone and audit‑program work as air rules shift at federal level
Summary
DEQ described long‑running regional haze and ozone work, a high‑use environmental audit program under state statute, and staffing gains in air quality, while noting potential changes from federal rulemaking.
Todd Parfitt told the Minerals interim committee the air quality division has been the most active DEQ component in recent years because of substantial federal rulemaking that states must implement.
Parfitt described the regional haze program as a visibility—not health—program that applies to national parks and wilderness areas; it requires periodic SIP (state implementation plan) updates and has involved disputes with EPA about controls at specific coal‑fired electric units. He identified five facilities that drew EPA objections during the first regional haze round and said most disputes have been resolved except for ongoing discussions about one facility the transcript references as “WIO DAC” (Wyodak). Parfitt said…
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