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ENVIRONMENTAL PROTECTION AGENCY

Environmental Protection Agency

CFR Citation: 40 CFR Parts 52 and 81

CO ID: [CO-001-0076a, CO-001-0077a; FRL-7785-1]

NOTICE: PROPOSED RULES

ACTION: Air quality implementation plans; approval and promulgation; various States; air quality planning purposes; designation of areas:

DOCUMENT ACTION: Proposed rule.

SUBJECT CATEGORY: Approval and Promulgation of Air Quality Implementation Plans; Colorado; Designation of Areas for Air Quality Planning Purposes, Lamar and Steamboat Springs

DATES: Written comments must be received in writing on or before September 7, 2004.

DOCUMENT SUMMARY: EPA is taking direct final action to approve a State Implementation Plan (SIP) revision submitted by the State of Colorado on July 31, 2002, for the purpose of redesignating the Lamar, Colorado and Steamboat Springs, Colorado areas from nonattainment to attainment for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM10) under the 1987 standards. The Governor's submittal, among other things, documents that the Lamar and Steamboat Springs areas have attained the PM10 national ambient air quality standards (NAAQS), requests redesignation to attainment and includes a maintenance plan for each of the areas demonstrating maintenance of the PM10 NAAQS for ten years. EPA is approving these redesignation requests and maintenance plans because Colorado has met the applicable requirements of the Clean Air Act (CAA), as amended. Upon the effective date of this approval, the Lamar and Steamboat Springs areas will be designated attainment for the PM10 NAAQS. This action is being taken under sections 107, 110, and 175A of the Clean Air Act.

SUMMARY: Colorado,


SUPPLEMENTAL INFORMATION

See the information provided in the Direct Final action of the same title which is located in the Rules and Regulations section of this Federal Register.

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

Dated: June 28, 2004.
Robert E. Roberts,
Regional Administrator, Region 8.
[FR Doc. 0417657 Filed 8404; 8:45 am]
BILLING CODE 656050P

FOR FURTHER INFORMATION CONTACT Libby Faulk, EPA, Region VIII, 999 18th Street, Suite 300, Mailcode 8PAR, Denver, Colorado, 80202, (303) 3126083, email faulk.libby@epa.gov.


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