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images:environmental mitigation:air quality IMPACT:

Based on the air quality study presented in the Final EIS, all alternatives for the proposed project would not cause or contribute to violations of the carbon monoxide (CO) National Ambient Air Quality Standards (NAAQS).
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In 1995, Lafayette Parish was redesignated by EPA from ozone nonattainment to ozone attainment with limited maintenance plan requirements (40 CFR Parts 52 and 81, August 18, 1995). Since the transportation conformity rule (40 CFR Part 93 Subpart A) applies to maintenance areas, Lafayette Parish must demonstrate conformity. As an attainment area with limited maintenance plan, a quantitative analysis is not needed for Lafayette Parish to establish conformity. Accordingly, at the request of the LaDOTD and the Lafayette MPO, the FHWA by letter of February 8, 2001, issued a positive conformity determination with regard to the Clean Air Act of 1990 and stated that Lafayette Parish complies with all conformity provisions of the Louisiana State Implementation Plan (SIP). This conformity determination is valid for three years.

COMMITMENT:

During construction of the proposed project, all materials resulting from the clearing and grubbing or demolition will be removed from the project and disposed of by the contractor per applicable regulations. Any burning will be done in accordance with all applicable local laws and ordinances and state laws and regulations.

Measures will be taken to control the dust generated by construction when the control of dust is necessary for the protection and comfort of motorists or area residents and the abatement of particulate emissions.

It is possible that short-term construction impacts could occur due to construction equipment and haul vehicles, depending on contractor method of operations and weather. LaDOTD standard specifications will be employed to minimize these impacts. Traffic congestion during construction is not anticipated to create an impact because the existing roadway essentially will remain in place while the new freeway facility is constructed.

STATUS:

See table below.

AIR QUALITY
Commitment/Mitigation TasksWhen to Occur*StatusDate CompletedLinks to Relevant Resources
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Construction phase burning and dust control plan (by construction contractor)CNo Activity N/A
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*Note: P = Preliminary Design Phase, F = Final Design Phase, C = Construction Phase
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