Utility Committee Agenda and Packet 2020 09 08

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City Council Utility Committee Meeting Minutes Tuesday, July 28, 2020 Page 3 of 6 continued saying that as they investigated there were additional parts that were needed which increased the costs. Fluoride Equipment — Design is done and ready to go to bid. Mr. Peterson explained this equipment is due for replacement and the parts aren't available. Councilmember Lipton confirmed that we went from replacing the parts to replacing the system. Mr. Kowar stated yes. Councilmember Maloney asked if this is the same project that Council discussed last week and how it changed from last Tuesday to this Tuesday. Mr. Kowar explained that we were going to bring you the fully designed projects with the full costs then we would have this conversation and you would give us guidance if you want us to move it into the CIP at the full cost. So we were holding status quo. Councilmember Maloney agreed with the process and Committee agreed that next year we will look at this earlier. Raw Water Quality — Mr. Peterson explained this is a new project where we want to do an analysis that looks at our water quality coming into our supply. We went to bid and are negotiating with the two low bidders. He continued saying this project has a long-term impact on our water quality and we are trying to be pro -active. He stated that it could be delayed but will come back around and have large consequences on taste and odor. Councilmember Lipton asked how often would we want to or have to repeat the analysis. Mr. Peterson said it could be a one-time thing but depends on the study. As the source water changes that's what would trigger another analysis but it should be good for 10-15 years. Councilmember Maloney added that doing an analysis is important but didn't understand why it costs so much and asked why. Mr. Peterson explained the various tests needed to do the study is what drove the costs up but we can cost save by doing some in-house. Councilmember Maloney then asked are there other items in the CIP that relate to this one where we are anticipating future costs related to this analysis. Mr. Peterson said, "No". Councilmember Fahey asked would the results be impacted based on what we do with the Windy Gap project. Mr. Peterson said potentially there could be some modifications with that but Northern handles the Carter Lake and Windy Gap water quality in corporation with participants. Drastic changes in source water aren't anticipating. Councilmember Fahey asked if it would be beneficial to wait until after that is constructed to do the study. Mr. Peterson said, "No" as Northern has a good idea on what we'd be seeing on flows and added that we are looking at the environmental offset as part of the Windy Gap project that will improve the water quality that we get. Lower Recycle Pond SCWP — Mr. Peterson said this is early in our design stage and has some challenges. He explained this is our holding pond for when our backflow tank hits our max at the north treatment plant and is also utilized for onsite storm detention. So what we are looking at is in high production times during the summer we have a challenge of having capacity within the pond to allow us to run the backwash and the processes within the treatment plant. So we have to limit those activities but right now those challenges only happen a couple times a year. As we get into the concept of ��