AQ Plan Public Notices/Hearings

PUBLIC NOTICE | Proposed Redesignation Request and Maintenance Plan for PM-10 in Ajo, Ariz.

ADEQ proposes to submit a revision to Arizona's State Implementation Plan (SIP) for Ajo, Ariz. The plan demonstrates that the Ajo area has attained the 1987 24-hour PM10 National Ambient Air Quality Standards (NAAQS) and will continue to maintain the standards through 2031. ADEQ is requesting the U.S. Environmental Protection Agency (EPA) approve the proposed maintenance plan as a revision to the Arizona SIP and redesignate the Ajo nonattainment area to attainment for the PM10 NAAQS. ADEQ is also requesting EPA remove the outdated total suspended particulates (TSP) nonattainment designation for the Ajo area.

Review Documents

Original Published Public Notice | View/Download >
SIP Revision: Ajo PM10 Redesignation Request and Maintenance Plan | View/Download >

Documents may also be reviewed in person:

Public Comment Period 

Dates: Dec. 26, 2018 – Jan. 24, 2019

Comments may be submitted as follows:
     Email | Send Email > 
     Mail (Must be postmarked or received by Jan. 24, 2019):

       Bruce Friedl
       Air Quality Division, Air Quality Improvement Planning Section
       1110 W. Washington Street
       Phoenix, AZ  85007

Public Hearing

Date: Thursday, Jan. 24, 2019
Time: 2 p.m.
Place: Salazar-Ajo Library | Pima County Public Library
            15 W. Plaza Street, #179
            Ajo, AZ 85321

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