Summary
EPA is proposing to approve the second 10-year maintenance plan for the San Manuel area in Arizona for the 1971 National Ambient Air Quality Standards (NAAQS) for sulfur dioxide (SO2).
Action
Proposed Rule
Dates
Any comments on this proposal must arrive by November 6, 2017.
For Further Information Contact
Ashley Graham (graham.ashleyr@epa.gov), EPA Region IX, (415) 972-3877.