Delegation of National Emission Standards for Hazardous Air Pollutants for Source Categories: State of Arizona, Arizona Department of Environmental Quality, Pima County Department of Environmental Quality

 
CONTENT

Federal Register: August 14, 2008 (Volume 73, Number 158)

Rules and Regulations

Page 47546-47550

From the Federal Register Online via GPO Access [wais.access.gpo.gov]

DOCID:fr14au08-7

ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 63

EPA-R09-OAR-2008-0555; FRL-8701-7

Delegation of National Emission Standards for Hazardous Air

Pollutants for Source Categories; State of Arizona, Arizona Department of Environmental Quality, Pima County Department of Environmental

Quality

AGENCY: Environmental Protection Agency (EPA).

ACTION: Direct final rule.

SUMMARY: EPA is amending certain regulations to reflect the current delegation status of national emission standards for hazardous air pollutants (NESHAP) in Arizona. Several NESHAP were delegated to the

Arizona Department of Environmental Quality on June 4, 2008, and to the

Pima County Department of Environmental Quality on June 16, 2008. The purpose of this action is to update the listing in the Code of Federal

Regulations.

DATES: This rule is effective on October 14, 2008, without further notice, unless EPA receives adverse comments by September 15, 2008. If we receive such comments, we will publish a timely withdrawal in the

Federal Register to notify the public that this direct final rule will not take effect.

ADDRESSES: Submit comments, identified by docket number EPA-R09-OAR- 2008-0555, by one of the following methods:

Page 47547

  1. Federal eRulemaking Portal: www.regulations.gov. Follow the on- line instructions. 2. E-mail: steckel.andrew@epa.gov. 3. Mail or delivery: Andrew Steckel (AIR-4), U.S. Environmental

Protection Agency Region IX, 75 Hawthorne Street, San Francisco, CA 94105-3901.

Instructions: All comments will be included in the public docket without change and may be made available online at www.regulations.gov, including any personal information provided, unless the comment includes Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Information that you consider CBI or otherwise protected should be clearly identified as such and should not be submitted through www.regulations.gov or e-mail. www.regulations.gov is an ``anonymous access'' system, and EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send e-mail directly to EPA, your e-mail address will be automatically captured and included as part of the public comment. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment.

Docket: The index to the docket for this action is available electronically at www.regulations.gov and in hard copy at EPA Region

IX, 75 Hawthorne Street, San Francisco, California. While all documents in the docket are listed in the index, some information may be publicly available only at the hard copy location (e.g., copyrighted material), and some may not be publicly available in either location (e.g., CBI).

To inspect the hard copy materials, please schedule an appointment during normal business hours with the contact listed in the FOR FURTHER

INFORMATION CONTACT section.

FOR FURTHER INFORMATION CONTACT: Mae Wang, EPA Region IX, (415) 947- 4124, wang.mae@epa.gov.

SUPPLEMENTARY INFORMATION: Throughout this document, ``we,'' ``us'' and

``our'' refer to EPA.

Table of Contents

  1. Background

    1. Delegation of NESHAP

    2. ADEQ Delegations

    3. PDEQ Delegations

  2. EPA Action

  3. Statutory and Executive Order Reviews

  4. Background

    1. Delegation of NESHAP

      Section 112(l) of the Clean Air Act, as amended in 1990 (CAA), authorizes EPA to delegate to state or local air pollution control agencies the authority to implement and enforce the standards set out in the Code of Federal Regulations, Title 40 (40 CFR), part 63,

      National Emission Standards for Hazardous Air Pollutants for Source

      Categories. On November 26, 1993, EPA promulgated regulations, codified at 40 CFR part 63, Subpart E (hereinafter referred to as ``Subpart

      E''), establishing procedures for EPA's approval of state rules or programs under section 112(l) (see 58 FR 62262). Subpart E was later amended on September 14, 2000 (see 65 FR 55810).

      Any request for approval under CAA section 112(l) must meet the approval criteria in 112(l)(5) and Subpart E. To streamline the approval process for future applications, a state or local agency may submit a one-time demonstration that it has adequate authorities and resources to implement and enforce any CAA section 112 standards. If such demonstration is approved, then the state or local agency would no longer need to resubmit a demonstration of these same authorities and resources for every subsequent request for delegation of CAA section 112 standards. However, EPA maintains the authority to withdraw its approval if the State does not adequately implement or enforce an approved rule or program.

    2. ADEQ Delegations

      On July 17, 1998, EPA published a direct final action delegating to the Arizona Department of Environmental Quality (ADEQ) several NESHAP and approving ADEQ's delegation mechanism for future standards (see 63

      FR 38478). That action explained the procedure for EPA to grant delegations to ADEQ by letter, with periodic Federal Register listings of standards that have been delegated. On April 17, 2008, ADEQ requested delegation of the following NESHAP contained in 40 CFR part 63:

      Subpart DDDD--NESHAP: Plywood and Composite Wood Products

      Subpart DDDDD--NESHAP for Industrial, Commercial, and

      Institutional Boilers and Process Heaters

      On June 4, 2008, EPA granted delegation to ADEQ for these NESHAP, along with any amendments to previously-delegated NESHAP, as of July 1, 2006. Today's action is serving to notify the public of the June 4, 2008, delegations and to codify these delegations into the Code of

      Federal Regulations.

    3. PDEQ Delegations

      On June 28, 1999, EPA published a direct final action delegating to the Pima County Department of Environmental Quality (PDEQ) several

      NESHAP and approving PDEQ's delegation mechanism for future standards

      (see 64 FR 34560). That action explained the procedure for EPA to grant delegations to PDEQ by letter, with periodic Federal Register listings of standards that have been delegated. On May 23, 2008, PDEQ requested delegation of the following NESHAP contained in 40 CFR part 63:

      Subpart J--NESHAP for Polyvinyl Chloride and Copolymers

      Production

      Subpart MM--NESHAP for Chemical Recovery Combustion

      Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical Pulp

      Mills

      Subpart XX--National Emission Standards for Ethylene

      Manufacturing Process Units: Heat Exchange Systems and Waste Operations

      Subpart DDDD--NESHAP: Plywood and Composite Wood Products

      Subpart WWWWW--National Emission Standards for Hospital

      Ethylene Oxide Sterilizers

      Subpart YYYYY--NESHAP for Area Sources: Electric Arc

      Furnace Steelmaking Facilities

      Subpart ZZZZZ--NESHAP for Iron and Steel Foundries Area

      Sources

      Subpart BBBBBB--NESHAP for Source Category: Gasoline

      Distribution Bulk Terminals, Bulk Plants, and Pipeline Facilities

      Subpart CCCCCC--NESHAP for Source Category: Gasoline

      Dispensing Facilities

      Subpart DDDDDD--NESHAP for Polyvinyl Chloride and

      Copolymers Production Area Sources

      Subpart EEEEEE--NESHAP for Primary Copper Smelting Area

      Sources

      Subpart FFFFFF--NESHAP for Secondary Copper Smelting Area

      Sources

      Subpart GGGGGG--NESHAP for Primary Nonferrous Metals Area

      Sources--Zinc, Cadmium, and Beryllium

      Subpart HHHHHH--NESHAP: Paint Stripping and Miscellaneous

      Surface Coating Operations at Area Sources

      Subpart LLLLLL--NESHAP for Acrylic and Modacrylic Fibers

      Production Area Sources

      Subpart MMMMMM--NESHAP for Carbon Black Production Area

      Sources

      Subpart NNNNNN--NESHAP for Chemical Manufacturing Area

      Sources: Chromium Compounds

      Subpart OOOOOO--NESHAP for Flexible Polyurethane Foam

      Production and Fabrication Area Sources

      Subpart PPPPPP--NESHAP for Lead Acid Battery Manufacturing

      Area Sources

      Subpart QQQQQQ--NESHAP for Wood Preserving Area Sources

      Page 47548

      Subpart RRRRRR--NESHAP for Clay Ceramics Manufacturing

      Area Sources

      Subpart SSSSSS--NESHAP for Glass Manufacturing Area

      Sources

      Subpart TTTTTT--NESHAP for Secondary Nonferrous Metals

      Processing Area Sources

      On June 16, 2008, EPA granted delegation to PDEQ for these NESHAP, along with any amendments to previously-delegated NESHAP, as of

      February 1, 2008. Today's action is serving to notify the public of the

      June 16, 2008, delegations and to codify these delegations into the

      Code of Federal Regulations.

  5. EPA Action

    Today's document serves to notify the public of the delegation of

    NESHAP to ADEQ on June 4, 2008, and to PDEQ on June 16, 2008. Today's action will codify these delegations into the Code of Federal

    Regulations.

  6. Statutory and Executive Order Reviews

    Under the Clean Air Act, the Administrator is required to approve a delegation request that complies with the provisions of the Act and applicable Federal regulations. 42 U.S.C. 7412(l); 40 CFR 63.91(b).

    Thus, in reviewing state delegation submissions, our role is to approve state choices, provided that they meet the criteria of the CAA.

    Accordingly, this action merely updates the list of approved delegations in the Code of Federal Regulations and does not impose additional requirements beyond those imposed by state law. For that reason, this action:

    Is not a ``significant regulatory action'' subject to review by the Office of Management and Budget under Executive Order 12866 (58 FR 51735, October 4, 1993);

    Does not impose an information collection burden under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);

    Is certified as not having a significant economic impact on a substantial number of small entities under the Regulatory

    Flexibility Act (5 U.S.C. 601 et seq.);

    Does not contain any unfunded mandate or significantly or uniquely affect small governments, as described in the Unfunded

    Mandates Reform Act of 1995 (Pub. L. 104-4);

    Does not have Federalism implications as specified in

    Executive Order 13132 (64 FR 43255, August 10, 1999);

    Is not an economically significant regulatory action based on health or safety risks subject to Executive Order 13045 (62 FR 19885, April 23, 1997);

    Is not a significant regulatory action subject to

    Executive Order 13211 (66 FR 28355, May 22, 2001);

    Is not subject to requirements of Section 12(d) of the

    National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 note) because application of those requirements would be inconsistent with the Clean Air Act; and

    Does not provide EPA with the discretionary authority to address, as appropriate, disproportionate human health or environmental effects, using practicable and legally permissible methods, under

    Executive Order 12898 (59 FR 7629, February 16, 1994).

    In addition, this rule does not have tribal implications as specified by Executive Order 13175 (65 FR 67249, November 9, 2000), because the delegation submission is not approved to apply in Indian country located in the state, and EPA notes that it will not impose substantial direct costs on tribal governments or preempt tribal law.

    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the

    Small Business Regulatory Enforcement Fairness Act of 1996, generally provides that before a rule may take effect, the agency promulgating the rule must submit a rule report, which includes a copy of the rule, to each House of the Congress and to the Comptroller General of the

    United States. EPA will submit a report containing this action and other required information to the U.S. Senate, the U.S. House of

    Representatives, and the Comptroller General of the United States prior to publication of the rule in the Federal Register. A major rule cannot take effect until 60 days after it is published in the Federal

    Register. This action is not a ``major rule'' as defined by 5 U.S.C. 804(2).

    Under section 307(b)(1) of the Clean Air Act, petitions for judicial review of this action must be filed in the United States Court of Appeals for the appropriate circuit by October 14, 2008. Filing a petition for reconsideration by the Administrator of this final rule does not affect the finality of this action for the purposes of judicial review nor does it extend the time within which a petition for judicial review may be filed, and shall not postpone the effectiveness of such rule or action. This action may not be challenged later in proceedings to enforce its requirements (see section 307(b)(2)).

    List of Subjects in 40 CFR Part 63

    Environmental protection, Administrative practice and procedure,

    Air pollution control, Hazardous substances, Intergovernmental relations, Reporting and recordkeeping requirements.

    Authority: This action is issued under the authority of Section 112 of the Clean Air Act, as amended, 42 U.S.C. 7412.

    Dated: July 25, 2008.

    Amy Zimpfer,

    Acting Director, Air Division, Region IX. 0

    Title 40, chapter I, part 63 of the Code of Federal Regulations is amended as follows:

    PART 63--[AMENDED] 0 1. The authority citation for part 63 continues to read as follows:

    Authority: 42 U.S.C. 7401, et seq.

    Subpart E--Approval of State Programs and Delegation of Federal

    Authorities 0 2. Section 63.99 is amended by revising paragraph (a)(3) to read as follows:

    Sec. 63.99 Delegated Federal authorities.

    (a) * * *

    (3) The following table lists the specific part 63 standards that have been delegated unchanged to the air pollution control agencies in the State of Arizona. The (X) symbol is used to indicate each category that has been delegated.

    Delegation Status for Part 63 Standards--Arizona

    Subpart

    Description

    ADEQ \1\

    MCAQD \2\ PDEQ \3\ PCAQCD \4\

    A............................ General Provisions...............

    X

    X

    X

    X

    F............................ Synthetic Organic Chemical

    X

    X

    X

    X

    Manufacturing Industry.

    G............................ Synthetic Organic Chemical

    X

    X

    X

    X

    Manufacturing Industry: Process

    Vents, Storage Vessels, Transfer

    Operations, and Wastewater.

    H............................ Organic Hazardous Air Pollutants:

    X

    X

    X

    X

    Equipment Leaks.

    Page 47549

    I............................ Organic Hazardous Air Pollutants:

    X

    X

    X

    X

    Certain Processes Subject to the

    Negotiated Regulation for

    Equipment Leaks.

    J............................ Polyvinyl Chloride and Copolymers

    X

    X

    X ..........

    Production.

    L............................ Coke Oven Batteries..............

    X

    X

    X

    X

    M............................ Perchloroethylene Dry Cleaning...

    X

    X

    X

    X

    N............................ Hard and Decorative Chromium

    X

    X

    X

    X

    Electroplating and Chromium

    Anodizing Tanks.

    O............................ Ethylene Oxide Sterilization

    X

    X

    X

    X

    Facilities.

    Q............................ Industrial Process Cooling Towers

    X

    X

    X

    X

    R............................ Gasoline Distribution Facilities.

    X

    X

    X

    X

    S............................ Pulp and Paper...................

    X

    X

    X ..........

    T............................ Halogenated Solvent Cleaning.....

    X

    X

    X

    X

    U............................ Group I Polymers and Resins......

    X

    X

    X

    X

    W............................ Epoxy Resins Production and Non-

    X

    X

    X

    X

    Nylon Polyamides Production.

    X............................ Secondary Lead Smelting..........

    X

    X

    X

    X

    AA........................... Phosphoric Acid Manufacturing

    X

    X

    X ..........

    Plants.

    BB........................... Phosphate Fertilizers Production

    X

    X

    X ..........

    Plants.

    CC........................... Petroleum Refineries.............

    X

    X

    X

    X

    DD........................... Off-Site Waste and Recovery

    X

    X

    X

    X

    Operations.

    EE........................... Magnetic Tape Manufacturing

    X

    X

    X

    X

    Operations.

    GG........................... Aerospace Manufacturing and

    X

    X

    X

    X

    Rework Facilities.

    HH........................... Oil and Natural Gas Production

    X

    X

    X ..........

    Facilities.

    JJ........................... Wood Furniture Manufacturing

    X

    X

    X

    X

    Operations.

    KK........................... Printing and Publishing Industry.

    X

    X

    X

    X

    LL........................... Primary Aluminum Reduction Plants

    X ..........

    X ..........

    MM........................... Chemical Recovery Combustion

    X

    X

    X ..........

    Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical

    Pulp Mills.

    OO........................... Tanks--Level 1...................

    X

    X

    X

    X

    PP........................... Containers.......................

    X

    X

    X

    X

    QQ........................... Surface Impoundments.............

    X

    X

    X

    X

    RR........................... Individual Drain Systems.........

    X

    X

    X

    X

    SS........................... Closed Vent Systems, Control

    X

    X

    X ..........

    Devices, Recovery Devices and

    Routing to a Fuel Gas System or a Process.

    TT........................... Equipment Leaks--Control Level 1.

    X

    X

    X ..........

    UU........................... Equipment Leaks--Control Level 2.

    X

    X

    X ..........

    VV........................... Oil-Water Separators and Organic-

    X

    X

    X

    X

    Water Separators.

    WW........................... Storage Vessels (Tanks)--Control

    X

    X

    X ..........

    Level 2.

    XX........................... Ethylene Manufacturing Process

    X

    X

    X ..........

    Units: Heat Exchange Systems and

    Waste Operations.

    YY........................... Generic MACT Standards...........

    X

    X

    X ..........

    CCC.......................... Steel Pickling...................

    X

    X

    X ..........

    DDD.......................... Mineral Wool Production..........

    X

    X

    X ..........

    EEE.......................... Hazardous Waste Combustors.......

    X

    X

    X ..........

    GGG.......................... Pharmaceuticals Production.......

    X

    X

    X ..........

    HHH.......................... Natural Gas Transmission and

    X

    X

    X ..........

    Storage Facilities.

    III.......................... Flexible Polyurethane Foam

    X

    X

    X ..........

    Production.

    JJJ.......................... Group IV Polymers and Resins.....

    X

    X

    X

    X

    LLL.......................... Portland Cement Manufacturing

    X

    X

    X ..........

    Industry.

    MMM.......................... Pesticide Active Ingredient

    X

    X

    X ..........

    Production.

    NNN.......................... Wool Fiberglass Manufacturing....

    X

    X

    X ..........

    OOO.......................... Manufacture of Amino/Phenolic

    X

    X

    X ..........

    Resins.

    PPP.......................... Polyether Polyols Production.....

    X

    X

    X ..........

    QQQ.......................... Primary Copper Smelting..........

    X

    X

    X ..........

    RRR.......................... Secondary Aluminum Production....

    X

    X

    X ..........

    TTT.......................... Primary Lead Smelting............

    X

    X

    X ..........

    UUU.......................... Petroleum Refineries: Catalytic

    X

    X

    X ..........

    Cracking, Catalytic Reforming, and Sulfur Recovery Units.

    VVV.......................... Publicly Owned Treatment Works...

    X

    X

    X ..........

    XXX.......................... Ferroalloys Production...........

    X

    X

    X ..........

    AAAA......................... Municipal Solid Waste Landfills..

    X

    X

    X ..........

    CCCC......................... Manufacturing of Nutritional

    X

    X

    X ..........

    Yeast.

    DDDD......................... Plywood and Composite Wood

    X ..........

    X ..........

    Products.

    EEEE......................... Organic Liquids Distribution (non-

    X

    X

    X .......... gasoline).

    FFFF......................... Miscellaneous Organic Chemical

    X

    X

    X ..........

    Manufacturing.

    GGGG......................... Solvent Extraction for Vegetable

    X

    X

    X ..........

    Oil Production.

    HHHH......................... Wet-Formed Fiberglass Mat

    X

    X

    X ..........

    Production.

    IIII......................... Surface Coating of Automobiles

    X

    X .......... .......... and Light-Duty Trucks.

    JJJJ......................... Paper and Other Web Coating......

    X

    X

    X ..........

    KKKK......................... Surface Coating of Metal Cans....

    X

    X

    X ..........

    MMMM......................... Miscellaneous Metal Parts and

    X

    X

    X ..........

    Products.

    NNNN......................... Large Appliances.................

    X

    X

    X ..........

    OOOO......................... Printing, Coating, and Dyeing of

    X

    X

    X ..........

    Fabrics and Other Textiles.

    Page 47550

    PPPP......................... Surface Coating of Plastic Parts

    X

    X .......... .......... and Products.

    QQQQ......................... Wood Building Products...........

    X

    X

    X ..........

    RRRR......................... Surface Coating of Metal

    X

    X

    X ..........

    Furniture.

    SSSS......................... Surface Coating of Metal Coil....

    X

    X

    X ..........

    TTTT......................... Leather Finishing Operations.....

    X

    X

    X ..........

    UUUU......................... Cellulose Products Manufacturing.

    X

    X

    X ..........

    VVVV......................... Boat Manufacturing...............

    X

    X

    X ..........

    WWWW......................... Reinforced Plastics Composites

    X

    X

    X ..........

    Production.

    XXXX......................... Tire Manufacturing...............

    X

    X

    X ..........

    YYYY......................... Stationary Combustion Turbines...

    X

    X

    X ..........

    ZZZZ......................... Stationary Reciprocating Internal

    X

    X .......... ..........

    Combustion Engines.

    AAAAA........................ Lime Manufacturing Plants........

    X

    X

    X ..........

    BBBBB........................ Semiconductor Manufacturing......

    X

    X

    X ..........

    CCCCC........................ Coke Oven: Pushing, Quenching and

    X

    X

    X ..........

    Battery Stacks.

    DDDDD........................ Industrial, Commercial, and

    X .......... .......... ..........

    Institutional Boiler and Process

    Heaters.

    EEEEE........................ Iron and Steel Foundries.........

    X

    X

    X ..........

    FFFFF........................ Integrated Iron and Steel........

    X

    X

    X ..........

    GGGGG........................ Site Remediation.................

    X

    X

    X ..........

    HHHHH........................ Miscellaneous Coating

    X

    X

    X ..........

    Manufacturing.

    IIIII........................ Mercury Emissions from Mercury

    X

    X

    X ..........

    Cell Chlor-Alkali Plants.

    JJJJJ........................ Brick and Structural Clay

    X

    X

    X ..........

    Products Manufacturing.

    KKKKK........................ Clay Ceramics Manufacturing......

    X

    X

    X ..........

    LLLLL........................ Asphalt Roofing and Processing...

    X

    X

    X ..........

    MMMMM........................ Flexible Polyurethane Foam

    X

    X

    X ..........

    Fabrication Operation.

    NNNNN........................ Hydrochloric Acid Production.....

    X

    X

    X ..........

    PPPPP........................ Engine Test Cells/Stands.........

    X

    X

    X ..........

    QQQQQ........................ Friction Products Manufacturing..

    X

    X

    X ..........

    RRRRR........................ Taconite Iron Ore Processing.....

    X

    X

    X ..........

    SSSSS........................ Refractory Products Manufacturing

    X

    X

    X ..........

    TTTTT........................ Primary Magnesium Refining.......

    X

    X

    X ..........

    WWWWW........................ Hospital Ethylene Oxide

    .......... ..........

    X ..........

    Sterilizers.

    YYYYY........................ Area Sources: Electric Arc

    .......... ..........

    X ..........

    Furnace Steelmaking Facilities.

    ZZZZZ........................ Iron and Steel Foundries Area

    .......... ..........

    X ..........

    Sources.

    BBBBBB....................... Gasoline Distribution Bulk

    .......... ..........

    X ..........

    Terminals, Bulk Plants, and

    Pipeline Facilities.

    CCCCCC....................... Gasoline Dispensing Facilities... .......... ..........

    X ..........

    DDDDDD....................... Polyvinyl Chloride and Copolymers .......... ..........

    X ..........

    Production Area Sources.

    EEEEEE....................... Primary Copper Smelting Area

    .......... ..........

    X ..........

    Sources.

    FFFFFF....................... Secondary Copper Smelting Area

    .......... ..........

    X ..........

    Sources.

    GGGGGG....................... Primary Nonferrous Metals Area

    .......... ..........

    X ..........

    Sources--Zinc, Cadmium, and

    Beryllium.

    HHHHHH....................... Paint Stripping and Miscellaneous .......... ..........

    X ..........

    Surface Coating Operations at

    Area Sources.

    LLLLLL....................... Acrylic and Modacrylic Fibers

    .......... ..........

    X ..........

    Production Area Sources.

    MMMMMM....................... Carbon Black Production Area

    .......... ..........

    X ..........

    Sources.

    NNNNNN....................... Chemical Manufacturing Area

    .......... ..........

    X ..........

    Sources: Chromium Compounds.

    OOOOOO....................... Flexible Polyurethane Foam

    .......... ..........

    X ..........

    Production and Fabrication Area

    Sources.

    PPPPPP....................... Lead Acid Battery Manufacturing

    .......... ..........

    X ..........

    Area Sources.

    QQQQQQ....................... Wood Preserving Area Sources..... .......... ..........

    X ..........

    RRRRRR....................... Clay Ceramics Manufacturing Area .......... ..........

    X ..........

    Sources.

    SSSSSS....................... Glass Manufacturing Area Sources. .......... ..........

    X ..........

    TTTTTT....................... Secondary Nonferrous Metals

    .......... ..........

    X ..........

    Processing Area Sources.

    \1\ Arizona Department of Environmental Quality.

    \2\ Maricopa County Air Quality Department.

    \3\ Pima County Department of Environmental Quality.

    \4\ Pinal County Air Quality Control District.

    * * * * *

    FR Doc. E8-18748 Filed 8-13-08; 8:45 am

    BILLING CODE 6560-50-P