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XX.02.. STORMWATER MANAGEMENT <br />The following standards shall apply to all developments and redevelopments within the <br />City: <br />A. Stormwater Management Plan. Every applicant for a building permit that <br />involves disturbing 20,000 sq. ft. of land, subdivision approval, or a permit to <br />allow land disturbing activities must submit a stormwater management plan to <br />the C ity. No building permit, subdivision approval, or permit to allow land <br />disturbing activities shall be issued until approval of this plan. All plans shall <br />be consistent with National Pollution Discharge Elimination Permit (NPDES) <br />requirements, and the filing or approval requirements of relevant Watershed <br />Districts, Watershed Management Organizations, Ditch Authorities, Soil and <br />Water Conservation Districts, or other regulatory bodies., <br />1. General Policy on Stormwater Runoff Rates - Site plans for new <br />development and redevelopment over 20.000 sf of any kind will be <br />assessed for stormwater quantity control and stormwater quality <br />management, The general policy on stormwater runoff rates is to reduce <br />the impacts of development by maintaining pre - development hydrological <br />conditions orimpmvino conditions to positively effect the downstream <br />watershed. <br />2. Stormwater Management Plan Requirements - The minimum <br />requirements of the Stormwater Plan shall be consistent with the most <br />recent version of the Minnesota Pollution Control Agency's NPDES <br />Construction Permit Requirements <br />a. Identification and description <br />i. Project name; <br />ii. Project type (residential, commercial, industrial, road <br />construction, or other); <br />iii. Project location; <br />iv. County parcel identification number (legal description); <br />v. Names and addresses of the record owner, developer, land <br />surveyor, engineer, designer of the plat, and any agents, <br />contractors, and subcontractors who will be responsible for <br />project implementation; <br />vi. Identification of the entity responsible for long term <br />maintenance of the project. This includes a maintenance plan <br />and schedule for all permanent stormwater practices; <br />vii. Phasing of construction with estimated start date, time frames <br />and schedules for each construction phase, and completion <br />date; <br />viii Copies of permits or permit applications required by any <br />other governmental entity or agencies including mitigation <br />measures required as a result of any review for the project <br />(e.g. wetland mitigation, EAW, EIS, archaeology survey, <br />etc.) <br />Model Stormwater Ordinance Page 2 NEMO Ordinance Project <br />6 <br />Deleted: As used in this Chapter (sec <br />appendix of model ordinance), the <br />following words and terms shall have the <br />meanings ascribed to them in this Section <br />Deleted: <br />Deleted: community <br />Deleted: community <br />Deleted: All stormwater mitigation and <br />management technologies shall be <br />consistent with the Community <br />Stormwater Management Design Manual <br />(Design Manual). The Design Manual is <br />the compilation of design, performance, <br />and review criteria approved by the <br />community and adopted by the council <br />for stormwater management practices. <br />Deleted: <br />Deleted: When a site is designed for <br />new or renewed development, the <br />hydrologic regime can be altered in the <br />following ways: <br />Deleted: <#>Increased runoffvolumey <br />< N >Increased imperviousness¶ <br /><N>Inereased flow frequency, duration, <br />and peak runoff reel <br /><N >Reduce infiltration (groundwater <br />rccharge)9 <br /><N>Modification of the flow pattern' <br />< N>Faster time to peak, due to shorter <br />time of concentration through stone <br />sewers¶ <br /><N>Loss of storage$ <br /><N>Accelerated channel erosion% <br />