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City Council Regular Meeting Minutes April 12, 2016 Page 3 Motion by Councilmember Stille seconded by Councilmember Brever to approve Resolution 16 -036 a Resolution Relating to o Property Tax Abatement Granting the Abatement Motion carried 4 -0. V. REPORTS FROM COMMISSION AND STAFF - NONE. 9 VI. GENERAL BUSINESS OF COUNCIL. 10 11 A. Presentation by City Engineer Minnesota Pollution Control Agency, and Minnesota 12 Department of Health. 13 14 City Engineer Hubmer introduced the team who is working with City staff to address the issue of 15 1,4 Dioxane that was identified by the Minnesota Health Department last year. He described the 16 meetings held with this team over the last year as they are regulators of the quality of water in 17 the ground that effects St. Anthony as well as setting the limits for contaminates that can be in 18 the drinking water supply. 19 20 Gary Krueger, Supervisor of Remediation Division with the Minnesota Pollution Control 21 Agency (MPCA), stated this Division deals with the clean up of contaminated sites. He provided 22 a brief overview on the status of the TCAAP and ongoing cleanup of that site. Mr. Krueger 23 presented a TCAAP site map that identified the cleanup and disposal areas. He explained this 24 was one of the first Super Fund sites listed so there has been significant cleanup for the future 25 redevelopment of the property. It was noted the groundwater containment system treats and 26 discharges water to an on -site gravel pit; however, it does not remove 1,4 Dioxane. The Army 27 has studied the area of the plume on and off the site and considered treatment for removal of the 28 1,4 Dioxane for the outside wells. He noted the size of the Dioxan plume, which took a lot of 29 years to create, has been reduced because of the pumping going on but it will take years to better 30 contain it. Mr. Krueger reviewed the points of the Army's off -site monitoring and described the 31 extent of 1,4 Dioxane off the site. He noted the 1,4 Dioxane levels in the New Brighton and St. 32 Anthony wells and stated the Army has been investigating the extent of the Dioxan plume, what 33 can be done about it, and options for additional treating for the municipal drinking water supply. 34 35 Jim Kelly, Environmental Health Division at the Minnesota Department of Health (MDH), 36 explained how this issue was found through a nation wide effort to address unregulated 37 contaminates in the nation's drinking water supply through testing every three to five years. Mr. 38 Kelly stated as these are unregulated contaminates, the MDH has developed Guidance Values 39 but compliance is voluntary. He stated this periodic testing is conducted on water supplies of 40 communities serving over 10,000 residents and if found, residents are usually notified through 41 that city's consumer confidence report. 42 43 Mr. Kelly explained what is meant by an `emerging contaminant,' noting there is also not a 44 health standard or regulation but often times have been evaluated by the State so if they are 45 found, guidance can be provided. He described the past use of 1,4 Dioxane, usually to stabilize 46 chlorinated solvents, where it has been found, and how it enters the environment and stays in