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L The proposed Twin Lakes redevelopment project will not have air quality Impacts significant enough to cause a violation of state carbon monoxide standards. J. Noise levels for the forecast year of 2011, modeled with and without project traffic, are predicted not to exceed the state daytime residential standard of 65 dBA. Project generated traffic is forecast to add 1 dBA or less to noise levels. A change in traffic noise levels of ress than 3 dBA is generally imperceptibre. Therefore, the forecast change in noise associated with project generated traffic is not considered a significant impact. K. The analysis conducted did not reveal any substantial impacts that would require further investigation prior to proceeding with developmenUredevelopment in the project area. L The proposed redevelopment could result improvement through hazardous waste enhancements, and improved infrastructure. in environmental cleanup, visual 1.4 The following comments have been received: A. Minnesota Department of Health: Locations and setbacks from contamination of all active, unused, or unsealed wells must be 50 feet, 20 feet if the sewer line meets the Minnesota Plumbing Code and is gravity or pressurized for single family use. A sewer line must be no closer than 10 feet to a buried water service line. A welt inventory was recommended. . B. Metropolitan Council: The EAW is complete and accurate with respect to regional concerns and raises no major issues of consistency. Staff offered comments on the following: grading plans for the new parkway should be reviewed by Metropolitan Council Environmental Services when near metropolitan interceptors; the proposed comprehensive plan amendment for the parkway realignment must be reviewed by the Metropolitan Council; Environmental Site Assessments should be conducted for the parcels to be redeveloped; when available information on soil contamination and leaking storage tanks should be ,