1982-03-23 - Laserfiche WebLink

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I I 1 City of New Brighton March 23, 1982 Councilmember Janecek asked if the treatment was permanent. Mr. Pete Willenbring stated that the calcium nitrate would effectively tie up phosphorous in the existing sediment but that new sediment would not be treated. Councilmember Blomquist asked what the involvement of the Minnesota Pollution Control Agency was in this project. Hr. Wedenbacher stated that the MPCA must approve the project as they provide 25% of the funding and that MPCA has agreed to the treatment of the south basin. Counci1member Schmidt asked if the phosphorous coming into Long Lake can be controlled. Mr. Wedenbacher stated that there is a considerably large watershed area that drains into Long Lake through the 35W marsh area, located in the southwest quadrant of 35W and 1-694 and that the Board of Managers has approved a project for this area. Counci1member Benke stated that Mr. Wedenbacher was now requesting that the lake be closed until June 28, 1982 but that their letter indicated the project would be complete by June 15th. Mr. Wedenbacher stated that they are requesting the additional two week:, LIst to be sure that they complete the project. Counci1member Benke asked if there would be any problem associated with the chemicals shoulJ anybody fall into the lake or as a result of the consumption of fish caught in the lake. Mr. Willenbring noted that the calcium nitrate solution is mostly salt and therefore should not be a problem. Mr. Willenbring noted that in their study they have found that the worst case possible in terms of strength of the solution would still fall well below FDA standards for consumption of nitrates. Mr. Ed Ross, Chairman of the EQC, noted that the EQC had considered the Watershed District request and had talked to Dr. Joseph Shapiro from the Univ0rsit.y of Minnesota and that Dr. Shapiro had estimated that the project would only be 10% effective and therefore not cost effective. -11-