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  • TEP Application for PSD Authorization

    TEP Irvington

    Tucson Electric Power Company (TEP) operates its Irvington Generating Station (IGS) under Class I Air Quality Operating Permit No. 1052 issued by the Pima County Department of Environmental Quality (PDEQ). IGS consists mainly of four steam boiler generating units, specifically, Unit 1, Unit 2, Unit 3 and Unit 4. TEP is proposing to modernize the station by replacing two 1950's era steam units (i.e., Units 1 and 2) with ten high-efficiency, fast-responding, state-of-the-art reciprocating internal combustion engines (RICE), each having a generating capacity of nearly 19 MW.  The RICE project expects to trigger a major modification for CO, PM2.5/PM10 and VOCs subject to the Prevention of Significant Deterioration (PSD) permitting. As such, air quality dispersion modeling analysis is required to demonstrate that new emissions from the major modification, will not cause or contribute to a violation of any National Ambient Air Quality Standards (NAAQS).

    Sierra Club Petition to the Environmental Appeals Board for Review of PSD Permit

    PSD Petition
    Exhibit 1 - Sierra Club Comments
    Exhibit 2 - PDEQ Public Notice of PSD Permit
    Exhibit 3 - TEP Application for PSD Permit
    Exhibit 4 - TSD
    Exhibit 5 - PDEQ PSD Permit
    Exhibit 6 - PDEQ Response to Comments
    Exhibit 7 - Declaration - Barh
    Exhibit 8 - Declaration - Medina

    Exhibit 2 to Sierra Club Comments
    Exhibit 3 to Sierra Club Comments
    Exhibit 4 to Sierra Club Comments
    Exhibit 5 to Sierra Club Comments
    Exhibit 6 to Sierra Club Comments
    Exhibit 7 to Sierra Club Comments
    Exhibit 8 to Sierra Club Comments
    Exhibit 9 to Sierra Club Comments
    Exhibit 10 to Sierra Club Comments
    Exhibit 11 to Sierra Club Comments
    Exhibit 12 to Sierra Club Comments
    Exhibit 13 to Sierra Club Comments

    Final Air Quality Permit Information

    TEP PSD Air Quality Permit #1052

    TEP PSD Technical Support Document (TSD)

    Pima County Responses to Public Comment

    Permit Issuance Decision Letter

    Compliance Assurance Monitoring Plan for Carbon Monoxide

    Administrative Records to Support TSD

    Pencor Masada (May 2001) Citgo - Petition Order (May 2009)
    Cash Creek - Petition Order (June 2012)
    Pio Pico Energy - EAB Final Order (Aug 2013)
    Hu Honua - Petition Order (Feb 2014) Yuhuang - Order Denying Petition for Objection to Permit (April 2018)
    California Power Holdings - Permit to Operate

    The information below provides a chronological list of the documentation related to this complex process from the projects inception to its conclusion. PDEQ is utilizing this repository webpage to provide easy access to the documents for the public comment period and to facilitate an open dialogue and the sharing of information with all interested parties.



    Permit Application Documentation

    Date Received Document Title

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    Tucson, AZ 85701

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