Approval and Promulgation of State Implementation Plans: Oregon

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[OR-61-7276; FRL -6307-6]

Approval and Promulgation of State Implementation Plans: Oregon

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The EPA proposes to approve the State Implementation Plan

(SIP) revision submitted by the State of Oregon 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). This SIP

revision was submitted by the State to satisfy certain Federal Clean

Air Act requirements for an approvable moderate nonattainment area PM-

10 SIP for the Oakridge, Oregon, PM-10 nonattainment area. In the Final

Rules Section of this Federal Register, the EPA is approving the

State's SIP submittal as a direct final rule without prior proposal

because the Agency views this as a noncontroversial submittal amendment

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 action, no further activity is

contemplated. If the EPA receives adverse comments, 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rule will be withdrawn and all public comments received will be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. Any parties interested

in commenting on this action should do so at this time.

DATES: Written comments must be received in writing by April 14, 1999.

ADDRESSES: Written comments should be addressed to Montel Livingston,

Environmental Protection Specialist (OAQ-107), Office of Air Quality,

at the EPA Regional Office listed below. Copies of the state submittal

are available at the following addresses for inspection during normal

business hours. The interested persons wanting to examine these

documents should make an appointment with the appropriate office at

least 24 hours before the visiting day.

Environmental Protection Agency, Region 10, Office of Air Quality, 1200

6th Avenue, Seattle, WA 98101.

The State of Oregon, Oregon Department of Environmental Quality, 811 SW

Sixth Avenue, Portland, Oregon 97204-1390.

FOR FURTHER INFORMATION CONTACT: Rindy Ramos, Office of Air Quality

(OAQ-107), EPA, 1200 6th Avenue, Seattle, WA 98101, (206) 553-6510.

SUPPLEMENTARY INFORMATION: For additional information, see the Direct

Final rule which is located in the Rules Section of this Federal

Register.

Dated: February 19, 1999.

Chuck Findley,

Acting Regional Administrator, Region 10.

[FR Doc. 99-6260 Filed 3-12-99; 8:45 am]

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