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2 To: Mayor and City Council From: Mary Kueffner Date: March 15, 1993 Re: Lake Elmo Municipal Water Supply Routine Inspection Report Attached is a copy of the above referenced report from the Minnesota Department of Public Health. Please note that the first recommendation of the Health Department is that the City consider constructing another well to serve as an emergency standby. Since there has been some discussion, at least by the Planning Commission, of an extension of the "Old Village", I think it would be prudent for the City to consider this additional well in those plans. If those plans go no where, the Council should still consider this recommendation in the not -to -distant future. There was a "Water Study Committee" a few years ago. If anyone in interested in seeing that report, or would like this issue put on the Council agenda for discussion, please let me know, The chlorination issue has also been brought up before by the Health Department, but according to our maintenance foreman, who has looked into this for previous councils, chlorinating now could reek havoc on our system and could be very expensive. We would have to retrofit our well house to accommodate a separate room for the chlorination equipment and probably have to replace at least some of the watermains because the buildup of residue now in the pipes would be loosened by the chlorination and could cause plugging of meters and weakening of the pipes (Dan says this has been the case in other cities). The costs involved should not be a reason to not chlorinate, but the council should be aware of the costs involved. Any new well that would be instructed has to have chlorination, but as of yet they have not made that law retroactive to existing wells. I suppose we should also be prepared for that possibility. Additional or on -going training is offered to our staff, and we will continue to encourage the staff to attend these classes.