Approval and Promulgation of Implementation Plans; California Mammoth Lakes Nonattainment Area; PMINF10

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[CA 19-2-725-b; FRL-5511-5]

Approval and Promulgation of Implementation Plans; California--

Mammoth Lakes Nonattainment Area; PM10

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of Proposed Rulemaking.

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SUMMARY: EPA is proposing to approve the State Implementation Plan

(SIP) submitted by the State of California for the purpose of bringing

about attainment in the Mammoth Lakes Planning Area (MLPA) of the

national ambient air quality standards (NAAQS) for particulate matter

with an

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aerodynamic diameter less than or equal to a nominal 10 micrometers

(PM10). The ``moderate'' area SIP was submitted by the State to

satisfy certain Federal requirements in the Clean Air Act (CAA) for an

approvable nonattainment area PM10 plan for the MLPA.

The intended effect of proposing approval of this plan is to

regulate emissions of PM10 in accordance with the requirements of

the CAA, as amended in 1990.

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

July 24, 1996.

ADDRESSES: Comments should be submitted to Stephanie Valentine (A-2-2)

at U. S. Environmental Protection Agency, Region 9, Air and Toxics

Division, 75 Hawthorne Street, San Francisco, CA 94105.

Copies of the State's submittal and other information are contained

in the docket for this rulemaking. The docket is available for

inspection during normal business hours at the following locations:

U.S. Environmental Protection Agency, Region 9, 75 Hawthorne Street,

San Francisco, CA 94105.

California Air Resources Board, 2020 L Street, P.O. Box 2815,

Sacramento, CA 95814.

Great Basin Unified Air Pollution Control District, 157 Short Street,

Suite 6, Bishop, CA 93514.

FOR FURTHER INFORMATION CONTACT: Stephanie G. Valentine (A-2-2), U.S.

Environmental Protection Agency, Region 9, Air and Toxics Division, 75

Hawthorne Street, San Francisco, CA 94105, (415) 744-1178.

SUPPLEMENTARY INFORMATION: This document concerns the PM10 Plan

for the Mammoth Lakes Planning Area, submitted to EPA on September 11,

1991 by the California Air Resources Board. For further information,

please see the information provided in the Direct Final action which is

located in the Rules Section of this Federal Register.

Authority: 42 U.S.C. 7401-7671q.

Dated: March 31, 1996.

Felicia Marcus,

Regional Administrator.

[FR Doc. 96-15906 Filed 6-21-96; 8:45 am]

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