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• • • Environmental Assessment Worksheet Nature's Refuge Conservation Development Lino Lakes, Anoka County, Minnesota Draft Document — September 25, 2006 22. Vehicle - related air emissions. Estimate the effect ofChe project's carbon monoxide levels. Discuss the effect of - traffic improvements o i rnpacts. Note: If the project involves 500 or more parking spaces, co detailed air quality analysis is needed Page 19 anon on air quality, pact tigation measures on air qua ruidelines about whether a The attached traffic analysis report indicates that the CSAH 14 /CSAH 23 intersection is currently approaching capacity and will experience excessive delays, even under a No -Build scenario. These delays will increase upon the addition of the proposed development traffic. Thus, the report recommends the placement of a traffic signal at this intersection. Assuming that the recommended traffic signal is installed, the planned transportation improvements associated with the Nature's Refuge project are expected to adequately manage the traffic demand and eliminate significant delays and congestion, the primary cause of traffic air quality impacts. If turn lanes are added to CSAH 14 (to be determined) where this project's access point is located, this will have the effect of minimizing the potential for creating concentrations of vehicle- related emissions, such as carbon monoxide. The current concentration of carbon monoxide in the immediate area is low. Concentrations are expected to be the highest at intersections with poor levels of service that cause regular vehicle idling. Additional information regarding level of service is contained in the response to Question 21 above. . Stationary source air emissions. Describe the type; sources, quantities and com rem stationary sources of air emissions such as boils, exhaust stacks or fugitive, dust sources. Include'any', ardous air pollutants (consult EAW Guidelines fora listing) and any greenhouse gases (such as dioxide, methane, nitrous oxide) and ozone - depleting chemicals (chloro- fluorocarbons, hydrofluorocarbons perfluorocarbons or sulfur heatafluoride). Also describe any proposed pollution prevention techniques and oposed air pollution control devices. Describe the impacts on air quality. This project does not involve any stationary sources of air emissions such as boilers, exhaust stacks, or fugitive dust sources. Like other single - family residential subdivisions, it is not anticipated that this project will produce hazardous air pollutants, greenhouse gases, or ozone depleting chemicals. 24. Odors, noise and dust.' Will the project: generate odors, noise or dt X Yes No If yes; describe sources, characteristics, duratio ures to mitigate adverse impacts. Also identify locations of n+ Discuss `potential Impacts on hninan health or quail operations may be discussed at item 23 instead 'ofhere) ang operation? and any proposed ! s and estimate impacts dust generated by Noise and dust will be generated at various times by construction activity. The large amount of imported fill material needed will require approximately 3920 truckloads to be brought in to the site each year for about four years. This level of truck traffic will be noticeable in the area and may generate somewhat higher levels of noise and dust in the immediate vicinity of the construction zone. Water will be applied to exposed soils during dry weather to mitigate dust movement. The hours of construction will be limited according to the City of Lino Lakes and State of Minnesota noise regulations. City practice is to limit construction to 7:00 am to 7:00 pm Monday through Friday, 9:00 am to 5:00 pm Saturday, with no construction on Sundays or federal holidays. Residential neighborhoods and an elementary school are in the immediate vicinity of the project site. There are 22 existing residences and the school site within 100 feet of the site. The above measures will be employed to minimize inconveniences to them.