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Determination of the Necessity of an Environmental Impact Statement for <br />the Long Lake Improvement Project <br />Page 7 <br />As noted in section 8 of the EAW, the project is the subject of extensive review by <br />various federal, state and local agencies. These agencies will address any potentially negative <br />ramifications of the project on water resources in the permitting process. <br />After consideration of the factors set out in Minnesota Rule 4410.1700. the MCWD <br />determines that the Project will not result in significant environmental effects due to surface <br />water run-off. <br />G. Water Quality - Wastewaters <br />There will be no environmental effects on water quality due to wastewaters because <br />sanitary or industrial wastewaters will not be produced or treated at the Project site. <br />Ground Water - Potential for Contamination <br />There is no potential for ground water contamination since no toxic or hazardous <br />materials will be used on site. <br />I. Solid Wastes. Hazardous Wastes. Storage Tanks <br />There will be no adverse environmental effects due to solid wastes or storage tanks <br />because no solid wastes will be generated at the site and there are no storage tanks present at <br />the Project site. As noted in section 20 of the EAW. alum, which will be used in 1 ,ong Lake, <br />may have potential toxic effects on aquatic communities or lake species. In an effort to <br />address this concern, a dose less than 50 percent of the maximum dose considered <br />environmentally safe based on lake alkalinity and pH will be used. In addition, the DNR has <br />regulatory authority over the use of alum and must approve its use. <br />Environmental effects associated with the use of alum have been the subject of <br />numerous studies. These studies include, but are not limited to the following: <br />1.R.A. Freeman and W.H. Everhart. Toxicity of Aluminum Hydroxide <br />Complexes in Neutral and Basic Media to Rainbow Trout. Trans Am. Fish <br />Society No. 644-658 (1971). <br />2.R.H. Kennedy and G.D. Cooke. Aluminum Sulfate Dose Determination and <br />Annlication Techniques. Restoration of Lakes and Inland Waters. EPA 400/5 <br />81-010 (1980). <br />066/22090508 8/11/95 <br />i