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of Mounds View staff Item No: 9H Meeting Date: August 28 2017 Type of Business: CB Administrator Review: —AE, To: Honorable Mayor and City Council From: Don Peterson, Interim Public Works Director Item Title/Subject: Resolution 8818 Authorizing Advance Engineering and Environmental Services, Inc. (AE2S) For Water Treatment Backwash Study and Compliance Issue Background / Discussion: On July 19, 2017, Public Works Staff meet with the representatives from the Metropolitan Council (Met Council) — Industrial Waste and Pollution Prevention Section. The purpose of the meeting was to inform the City of a possible violation on the discharge limits at Water Treatment Plants 2 and 3. (Water samples that were obtained on June 29, 2017 exceeded discharge limits established by the Waste Discharge Rule 401.00 for lead, copper and mercury.) On July 19, representatives from Met Council indicated that the purpose of the meeting was an informational discussion and not a compliance issue at that particular time. (Met Council would then review the results further and notify the City if this would become a compliance issue.) Met Council also required the City of Mounds View to take additional waste discharge samples. Public Works Staff began taking additional water samples and had them tested by an independent lab. On August 3, 2017, the City received notice from Metropolitan Council with a Compliance Issue Notification for Permit No. WO61 and W062, (Water Treatment Plants 2 and 3). The notification requires additional testing of the discharge water to include testing for mercury, lead and copper. The notification also requires a written action plan to include a time schedule, completed by September 14, 2017, to bring the two facilities back into compliance. Public Works Staff reviewed the letter of Compliance Issue Notifications and contacted AE2S to provide a proposal to assist the City with this compliance issue. Staff felt it would be prudent to hire an outside engineering firm to assist with this compliance issue due to the current work load of the Public Works Administration Department, staffing deficiencies and the large construction project of the Public Works Facility. Further Discussion: AE2S submitted a proposal that includes three -phases to this project: Phase 1- Review of the Current Metropolitan Council Data Phase 2- Data Collection, Analysis and Development of an Action Plan Phase 3- Development of Potential Operational and/or Treatment Modifications