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Approval and Promulgation of Implementation Plans; Arizona-- Maricopa County PM-10 Nonattainment Area; Serious Area Plan for Attainment of the Annual PM-10 Standard; Further Extension of Comment Period

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[Federal Register: July 14, 2000 (Volume 65, Number 136)]
[Proposed Rules]
[Page 43726-43727]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr14jy00-26]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[AZ092-002; FRL-6736-1]


Approval and Promulgation of Implementation Plans; Arizona--
Maricopa County PM-10 Nonattainment Area; Serious Area Plan for
Attainment of the Annual PM-10 Standard; Further Extension of Comment
Period

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule; further extension of comment period.

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SUMMARY: EPA is extending the comment period for its proposed action to
approve provisions of the Revised MAG 1999 Serious Area Particulate
Plan for PM-10 for the Maricopa County (Phoenix) Nonattainment Area,
February 2000, and the control measures on which it relies, that
address the annual PM-10 national ambient air quality standard. As part
of this proposal, we also proposed to grant Arizona's request to extend
the Clean Air Act deadline for attaining the annual PM-10 standard in
the Phoenix area from 2001 to 2006 and to approve two particulate
matter rules adopted by the Maricopa County Environmental Services
Department and Maricopa County's Residential Woodburning Restrictions
Ordinance.

DATES: Comments must be received by July 28, 2000.

ADDRESSES: Mail comments to Frances Wicher, Air Planning Office (Air-
2), U.S. Environmental Protection Agency, Region IX, 75 Hawthorne
Street, San Francisco, CA 94105-3901.

FOR FURTHER INFORMATION CONTACT: Frances Wicher, Air Planning Office
(Air-2), U.S. Environmental Protection Agency, Region IX, (415) 744-
1248.

SUPPLEMENTARY INFORMATION: On April 13, 2000 (65 FR 19963), we proposed
to approve the serious area air quality plan for attainment of the
annual PM-10 standard in the Phoenix, Arizona, metropolitan area. The
proposed actions are based on our initial determination that this plan
complies with the Clean Air Act's requirements for attainment of the
annual PM-10 standard in serious PM-10 nonattainment areas.
    Specifically, we proposed to approve the following elements of the
plan as they apply to the annual PM-10 standard:
     The base year emissions inventory of PM-10 sources,
     The demonstration that the plan provides for
implementation of

[[Page 43727]]

reasonably available control measures (RACM) and best available control
measures (BACM), the demonstration that attainment of the PM-10 annual
standard by the Clean Air Act deadline of December 31, 2001 is
impracticable,
     The demonstration that attainment of the PM-10 annual
standard will occur by the most expeditious alternative date
practicable, in this case, December 31, 2006,
     The demonstration that the plan provides for reasonable
further progress and quantitative milestones,
     The demonstration that the plan includes to our
satisfaction the most stringent measures found in the implementation
plan of another state or are achieved in practice in another state, and
can feasibly be implemented in the area.
     The demonstration that major sources of PM-10 precursors
such as nitrogen oxides and sulfur dioxide do not contribute
significantly to violations of the annual PM-10 standard, and
     The transportation conformity budget.
    We also proposed to grant Arizona's request to extend the
attainment date for the annual PM-10 standard from December 31, 2001 to
December 31, 2006.
    Finally, we are proposing to approve Maricopa County's fugitive
dust rules, Rules 310 and 301.01, and its residential woodburning
restriction ordinance.
    The proposal action provided a 60 day public comment period that
ended on June 12, 2000. We have already extended the comment period to
July 3, 2000. In response to a request from City of Tempe, Arizona, we
are extending the comment period for an additional 14 days.

    Dated: July 5, 2000.
Felicia Marcus,
Regional Administrator, Region IX.
[FR Doc. 00-17877 Filed 7-13-00; 8:45 am]
BILLING CODE 6560-50-P

 
 

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