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Updated January 2025 – Gem Lake Consolidated Land Use Ordinance No. 131 160 4. The prohibition shall not apply to any non-storm water discharge permitted under an NPDES permit, waiver, or waste discharge order issued to the discharger and administered under the authority of the United States Environmental Protection Agency (EPA), provided that the discharger is in full compliance with all requirements of the permit, waiver, or order and other applicable laws and regulations, and provided that written approval has been granted for any discharge to the storm drain system. 2. Prohibition of Illicit Discharge. 1. The construction, use, maintenance or continued existence of illicit connections to the storm drain system is prohibited. 2. This prohibition expressly includes, without limitation, illicit connections made in the past, regardless of whether the connection was permissible under law or practices applicable or prevailing at the time of connection. 3. A person is considered to be in violation of this section if the person connects a line conveying sewage to the MS4, or allows such a connection to continue. 4. Improper connections in violation of this section must be disconnected and redirected, if necessary, to an approved onsite wastewater management system or the sanitary sewer system upon approval of the City of Gem Lake. 5. Any drain or conveyance that has not been documented in plans, maps or equivalent, and which may be connected to the storm sewer system, shall be located by the owner or occupant of that property upon receipt of written notice of violation from the City of Gem Lake requiring that such locating be completed. Such notice will specify a reasonable time period within which the location of the drain or conveyance is to be determined, that the drain or conveyance be identified as storm sewer, sanitary sewer or ot her, and that the outfall location or point of connection to the storm sewer system, sanitary sewer system or other discharge point be identified. Results of these investigations are to be documented and provided to the City of Gem Lake. 8. Watercourse Protection. Every person owning property through which a watercourse passes and/or contains a stormwater inlet or catch basin, or such person's lessee, shall keep and maintain that part of the watercourse and/or stormwater inlet o r catch basin within the property free of trash, debris, excessive vegetation, and other obstacles that would pollute, contaminate, or significantly retard the flow of water through the watercourse. In addition, the owner or lessee shall maintain existing privately owned structures within or adjacent to a watercourse, so that such structures will not become a hazard to the use, function, or physical integrity of the watercourse. 9. Industrial or Construction Activity Discharge. Submission of Notice of Coverage/Authorization to the City of Gem Lake . 1. Any person subject to an industrial or construction activity NPDES storm water discharge permit shall comply with all provisions of such permit. Proof of compliance with said permit may be required in a form acceptable to the City of Gem Lake prior to the allowing of discharges to the MS4. 2. The operator of a facility, including construction sites, required to have an NPDES permit to discharge storm water associated with industrial or construction activity shall submit a copy of the coverage notification or notification of permit authorization to the City of Gem Lake. 3. The copy of the coverage notification or notification of permit authorization may be delivered to the City of Gem Lake either in person or by mailing it to: City of Gem Lake 4200 Otter Lake Road Gem Lake, MN 55110 4. A person commits an offense if the person operates a facility that is discharging storm water associated with industrial or construction activity without having submitted a copy of the coverage notification or notification of permit authorization to do so to the City of Gem Lake.