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TWIN LAKES EA W Finding of Fact Regarding Decision on Need for Environmental Impact Statement June 23, 1997 I. PROJECT DESCRIPTION The City of Roseville is the project proposer and Responsible Government Unit (RGU) for the Twin Lakes project in the City of Roseville, Minnesota. The proposed Twin Lakes development area includes the development or redevelopment of30 parcels totaling 738,810 net additional square feet of buildable footprint coverage, for a business park total of nearly 2.1 million square feet. The project is expected to be fully developed by 2010 and will include the construction of a new street (Twin Lakes Parkway), walking and biking trails, and landscaping enhancements. Some ofthe primary environmental issues discussed in the EA W include: · Hazardous Waste/Contaminated Soils: Each development or redevelopment will have to consider clean-up of hazardous materials due to past industrial activities in the area. Potentially hazardous wastes and contaminated sites may be cleaned up at a more aggressive pace as parcels are redeveloped. The extent of hazardous wastes and the level of effort required for clean up will be detennined on a case by case basis at the time development proposal(s) are submitted for any portion of the Twin Lakes project area. · Air Oualitv: Construction activities may generate airborne dust due to site grading with construction equipment. This will be a temporary impact lasting until construction is complete and the site area is revegetated. Increased traffic volumes within Twin Lakes will not have air quality impacts significant enough to cause any violation of state CO standards. · Noise: Noise will be generated during construction by construction equipment. Construction noise will be a temporary impact and will be controlled by limiting construction activities to daytime hours and assuring that construction equipment is properly muffled. Noise generated from additional traffic is predicted not to exceed any state daytime residential standard. Noise generated from additional traffic is predicted to exceed state nighttime standards at two of the three sites analyzed. · Traffic: The project is expected to result in no significant traffic impacts. Several of the traffic impacts identified in the traffic analysis are attributed to the background traffic conditions and would be expected to occur without the Twin Lakes redevelopment. The minor traffic impacts imparted by the project are expected to be mitigated by constructing exclusive right turning lanes at selected intersection approach locations. II. REASONS FOR ENVIRONMENTAL REVIEW The Twin Lakes project meets and exceeds the state Environmental Assessment Worksheet (EA W) threshold for IndustriaVCommercial projects (Minnesota Rule 4410.4300, subp. 14). Pursuant to Minnesota Rule 4410.1000. subp. 4, the Twin Lakes EA W addresses the cumulative impacts of the proposed project.