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• 2. Road widening at Lake Drive /I -35W southbound ramps to accommodate a dedicated northbound turn lane. 3. Road widening at Lake Drive /I -35W northbound ramps to accommodate a dedicated southbound turn lane. 4. Prohibition of left turns and through movements from east and westbound 77th Street. 22. Vehicle related air emissions: Provide an estimate of the effect of the project's traffic generation on air quality, including carbon monoxide levels. Discuss the effect of traffic improvements or other mitigation measures on air quality impacts. (If project involves 500 or more parking spaces, consult "EAW Guidelines" about whether a detailed air quality analysis is needed.) An air quality analysis was conducted for the indirect source permit application. The analysis was conducted using U.S. Environmental Protection Agency approved models to assess impacts from carbon monoxide (CO) emissions generated by traffic one year after completion of the proposed project. Results of the air quality analysis indicate that after the project is completed, state CO standards will continue to be maintained. The maximum predicted 1- and 8 -hour average CO impacts, including monitored background concentrations, are 7.9 parts per million (ppm) and 5.5 ppm, respectively. Further details can be found in Appendix D of the air quality analysis from the Indirect Source Permit application cited above. The Indirect Source Permit application is provided in Exhibit H. 23. Stationary source air emissions. Describe the type, sources, quantities and compositions of any emissions from stationary sources of air emissions such as boilers, exhaust stacks or fugitive dust sources. Include any hazardous air pollutants (consult EAW Guidelines for a listing) and any greenhouse gases (such as carbon dioxide, methane, nitrous oxide) and ozone - depleting chemicals (chloro- fluorocarbons, hydrofluorocarbons, perfluorocarbons or sulfur hexafluoride). Also describe any proposed pollution prevention techniques and proposed air pollution control devices. Describe the impacts on air quality. Stationary sources of air emissions will include only natural gas space heaters. The emissions from these units will not have a significant impact on the ambient air quality. 24. Odors, noise and dust. Will the project generate odors, noise or dust during construction or during operation? X Yes No If yes, describe sources, characteristics, duration, quantities or intensity and any proposed measures to mitigate adverse impacts. Also identify locations of nearby sensitive receptors and estimate impacts on them. Discuss potential impacts on human health or quality of life. (Note: fugitive dust generated by operations may be discussed at item 23 instead of here.) Dust During construction, particular emissions will temporarily increase due to the generation of fugitive dust. The following dust control measures will be undertaken as necessary: 1. Minimize the period and extent of areas being exposed and regraded at any one time. 2. Spraying construction areas and all roads with water, especially during periods of high wind or high levels of construction activity. 3. Minimize the use of vehicles on unpaved surfaces. 4. Covering or spraying material piles and /or truck loads. Page 22 of 28 Draft EAW Lino Lakes Marketplace May 11, 2001