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ITEM 4.1 Stormwater Management Plan0 6TY F O MINNESOTA g DEPARTMENT INFORMATION Request for City Council Action ORIGINATING DEPARTMENT REQUESTOR: MEETING DATE: Public Works City Engineer Wagner June 8, 2020 PRESENTER(s) REVIEWED BY: ITEM #: City Engineer Wagner City Administrator/Finance Director Flaherty 4.1 STRATEGIC VISION MEETS: I THE CITY OF OTSEGO: X Is a strong organization that is committed to leading the community through innovative communication. Has proactively expanded infrastructure to responsibly provide core services. Is committed to delivery of quality emergency service responsive to community needs and expectations in a cost-effective manner. Is a social community with diverse housing, service options, and employment opportunities. Is a distinctive, connected community known for its beauty and natural surroundings. AGENDA ITEM DETAILS RECOMMENDATION: Staff recommends holding a public meeting per the requirements of MPCA as part of the City of Otsego's adopted Storm Water Pollution Prevention Program. ARE YOU SEEKING APPROVAL OF A CONTRACT? IS A PUBLIC HEARING REQUIRED? No No BACKGROUND/JUSTIFICATION: The City must annually hold a public meeting allowing residents to communicate any ideas, suggestions or concerns they may have regarding storm water within the City. SUPPORTING DOCUMENTS ATTACHED: • SWPPP Annual Meeting Outline • Summary of Maintenance Concerns POSSIBLE MOTION PLEASE WORD MOTION AS YOU WOULD LIKE IT TO APPEAR IN THE MINUTES: No action or motion required. BUDGET INFORMATION FUNDING: BUDGETED: Fund 220/222 — Storm Water Utility Yes City of Otsego SWPPP Annual Meeting Introduction ➢ Required by National Pollutant Discharge Elimination System (NPDES) ➢ Regulated by Minnesota Pollution Control Agency ➢ City Adopted a Storm Water Pollution Prevention Program (SWPPP) ➢ Goal: Reduce the discharge of pollutants into receiving waters to the Maximum Extent Practicable (MEP) II. Six Minimum Control Measures 1. Public Education and Outreach Goal - Reduce pollutants and improve water quality by educating the public, city officials, and city staff about the impacts on stormwater runoff. Activity — Distribute literature on fertilizer, chlorinated pool discharges, automotive liquids, pet waste, construction activities, etc. 2. Public Participation and Involvement Goal —Allow public to provide input on the City's SWPPP Activity —Annual public meeting 3. Illicit Discharge Detection and Elimination Goal — Reduce / eliminate non-stormwater discharges into the storm sewer system and receiving waters. ➢ Create a comprehensive storm sewer system map to help gain a better understanding of the City's storm sewer system and assist in tracking illicit discharges. ➢ Identify illicit discharges through inspections of the storm sewer system (i.e. identify dry weather discharges, staining, odors) 4. Construction Site Stormwater Runoff Control Goal — Reduce sediment and erosion by implementing standards and enforcing through inspections. Require waste controls for site operators. City of Otsego SWPPP Annual Meeting 5. Post -Construction Stormwater Management Goal — Reduce pollutants in stormwater discharges by implementing permanent stormwater facilities, such as NURP ponds and treatment structures. Implement standards to ensure permanent BMP's are installed and maintained for new development and re -development. 6. Pollution Prevention / Good Housekeeping Goal —Reduce pollutants in stormwater discharges by employing good housekeeping practices for municipal/public works operations. Activity — Street sweeping, pond, outfall and structure inspections, stockpile and handling area inspections, maintenance, repairs, etc. III. Ongoing Challenges ➢ Funding — Adjustments to Storm Water Utility Fee may be required as actual costs are calculated and potential additional costs are determined. ➢ Management — Continue to evaluate regional ponding vs. small development ponds. Regional ponding could provide large future cost savings when the costs of inspections, maintenance, and dredging are considered. SK-10-121-24-4-1-01 Access: Good Condition: Poor Comments: Layer of mud on the bottom of basin k$ 92 i Y SK-26-121-24-1-3-01 Access: Good Condition: Poor Comments: Cloudy due to sediment in basin IS 2019 MS4 Maintenance Concerns Skimmer Structures S K-26-121-24-4-2-03 Access: Good Condition: Poor Comments: Top section of basin seperated from lower section SK-16-121-23-4-3-01 Access: Good Condition: Poor Comments: Trash and sticks in basin Q 0 z SK-22-121-23-3-2-01 Access: Good Condition: Poor Comments: Trash in basin Weir not grouted Faint sewage smell ILI 0 tCITY OF so MINNESOTAe LL S K-22-121-23-2-3-01 Access: Good Condition: Poor Comments: Large amount of sediment in basin Bolts loose on grate S K-22-121-23-3-4-01 Access: Good Condition: Poor Comments: Trash in basin OX S�Q 2 �Fh I S K-1-120-2 3-1-3-01 Access: Good Condition: Poor Comments: No grout on weir, Trash in basin