Clean Air Act Approval and Promulgation of PM-10 Implementation Plan for Colorado; Designation of Areas for Air Quality Planning Purposes

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[CO11-1-6532b, CO30-1-6533b, and CO36-2-6303b; FRL-5067-8 ]

Clean Air Act Approval and Promulgation of PM-10 Implementation

Plan for Colorado; Designation of Areas for Air Quality Planning

Purposes

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of proposed rulemaking.

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SUMMARY: In this document, the EPA is proposing approval of the State

implementation plan (SIP) and SIP revisions submitted by the State of

Colorado for the purpose of bringing about the attainment of the

national ambient air quality standards (NAAQS) for particulate matter

with an aerodynamic diameter less than or equal to a nominal 10

micrometers (PM-10) in Aspen, Colorado. In the final rules Section of

this Federal Register, the EPA is approving the State's SIP submittals

as a direct final rule without prior proposal because the Agency views

these submittals as noncontroversial and anticipates no adverse

comments. A detailed rationale for the approval is set forth in the

direct final rule. If no adverse comments are received in response to

this proposed rule, no further activity is contemplated in relation to

this rule. If the EPA receives adverse comments, then the direct final

rule will be withdrawn and all public comments received will be

addressed in a subsequent final rule based on this proposed rule. The

EPA will not institute a second comment period on this document. Any

parties interested in commenting on this document should do so at this

time.

DATES: Comments on this proposed action must be received in writing by

October 14, 1994.

ADDRESSES: Written comments should be addressed to Vicki Stamper, 8ART-

AP, at the EPA Regional Office listed below. Copies of the documents

relevant to this proposed rule are available for public inspection

during normal business hours at the following locations:

Air Programs Branch, Environmental Protection Agency, Region VIII, 999

18th Street, suite 500, Denver, Colorado 80202-2466; and Air Pollution

Control Division, Colorado

Department of Health, 4300 Cherry Creek Drive South, Denver, Colorado

80222-1530.

FOR FURTHER INFORMATION CONTACT: Vicki Stamper, 8ART-AP, Environmental

Protection Agency, Region VIII, 999 18th Street, suite 500, Denver,

Colorado 80202-2466, (303) 293-1765.

SUPPLEMENTARY INFORMATION: See the information provided in the direct

final rule of the same title which is located in the rules section of

this Federal Register.

Dated: August 31, 1994.

Jack W. McGraw,

Acting Regional Administrator.

[FR Doc. 94-22524 Filed 9-13-94; 8:45 am]

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