Clean Air Act Approval and Promulgation of State Implementation Plan for Colorado; Denver Nonattainment Area PMINF10 Contingency Measures

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[CO-001-0001b; FRL-5606-5]

Clean Air Act Approval and Promulgation of State Implementation

Plan for Colorado; Denver Nonattainment Area PM10 Contingency

Measures

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA proposes to approve the state implementation plan (SIP)

for the Denver, Colorado PM10 (particulate matter with an

aerodynamic diameter less than or equal to a nominal 10 micrometers)

nonattainment area submitted by the State of Colorado on November 17,

1995, to satisfy the Federal Clean Air Act requirement to submit

contingency measures for the Denver moderate PM10 nonattainment

area.

In the Final Rules Section of the Federal Register, EPA is

approving the State's SIP revision, as a direct final rule without

prior proposal because the Agency views this as a noncontroversial

revision 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 EPA receives

adverse comments, the direct final will be withdrawn and all public

comments received will be addressed 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.

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

November 22, 1996.

ADDRESSES: All written comments should be addressed to: Richard R.

Long, Director, Air Program, EPA Region VIII, at the address listed

below. Information supporting this action can be found at the following

location: EPA Region VIII, Air Program 999 18th Street, Denver,

Colorado 80202-2466. The information may be inspected between 8 a.m.

and 4 p.m., on weekdays, except for legal holidays. A reasonable fee

may be charged for copying.

FOR FURTHER INFORMATION CONTACT: Callie Videtich, Air Program EPA

Region VIII, 999 18th Street, Suite 500, Denver, Colorado 80202-2405,

(303) 312-6434.

SUPPLEMENTARY INFORMATION: See the information provided in the Direct

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

Register.

List of Subjects in 40 CFR Part 52

Environmental Protection, Air pollution control, Incorporation by

reference, Intergovernmental relations, Particulate matter and

Reporting and recordkeeping requirements.

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

Dated: August 27, 1996.

Patricia D. Hull,

Acting Regional Administrator.

[FR Doc. 96-24052 Filed 9-20-96; 8:45 am]

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