2010-19062. Determination of Attainment for PM10

AGENCY:

Environmental Protection Agency (EPA).

ACTION:

Proposed rule.

SUMMARY:

EPA proposes to determine that the Las Vegas Valley nonattainment area in Nevada attained the National Ambient Air Quality Standard (NAAQS) for particulate matter with an aerodynamic diameter of less than or equal to a nominal ten micrometers (PM₁₀) by the applicable attainment date (December 31, 2006), and that the Las Vegas Valley nonattainment area is currently attaining the standard.

DATES:

Comments must be received on or before September 2, 2010.

ADDRESSES:

Submit comments, identified by docket number EPA-R09-OAR-2010-0590, by one of the following methods:

1. Federal eRulemaking Portal: http://www.regulations.gov. Follow the on-line instructions.

2. E-mail: [e-mail].

3. Mail or deliver: Wienke Tax, Air Planning Office, EPA Region IX, 75 Hawthorne Street, San Francisco, CA 94105-3901.

Please see the direct final rule which is located in the Rules section of this Federal Register for detailed instructions on how to submit comments.

FOR FURTHER INFORMATION CONTACT:

Wienke Tax at telephone number: [phone], e-mail address: [e-mail], or the above EPA, Region IX address.

SUPPLEMENTARY INFORMATION:

For further information, please see the direct final action, of the same title, which is located in the Rules section of this Federal Register. EPA is approving the attainment determination as a direct final rule without prior proposal because EPA views this as a noncontroversial action and anticipates no adverse comments. A detailed rationale for the approval is set forth in the preamble to the direct final rule. If EPA receives no adverse comments, EPA will not take further action on this proposed rule.

If EPA receives adverse comments, EPA will withdraw the direct final rule and it will not take effect. EPA will address all public comments in a subsequent final rule based on this proposed rule. EPA will not institute a second comment period on this action. Any parties interested in commenting on this action should do so at this time. Please note that if we receive adverse comment on an amendment, paragraph, or section of this rule and if that provision may be severed from the remainder of the rule, EPA may adopt as final those provisions of the rule that are not the subject of an adverse comment.

Dated: July 21, 2010.

Keith Takata,

Acting Regional Administrator, EPA Region IX.