Agenda - Council - 11/14/2023 - Laserfiche WebLink

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1 a. Development of a vegetation restoration plan and reestablishment of natural vegetation 2 is required: 3 1. As a condition of a vegetation permit; 4 2. Upon failure to comply with any provisions in this section; or 5 3. As part of the planning process for subdivisions. 6 b. The vegetation restoration plan must: 7 1. Include vegetation that provides suitable habitat and effective soil stability,runoff 8 retention,and infiltration capability.Vegetation species, composition, density, and 9 diversity must be guided by nearby patches of native plant communities and by 10 native vegetation establishment and enhancement guidelines; 11 2. Be prepared by a qualified individual; and 12 3. Include a maintenance plan that includes management provisions for controlling 13 invasive species and replacement of plant loss for three years. 14 C. A certificate of compliance will be issued after the vegetation restoration plan 15 requirements have been satisfied. 16 (J) Land alteration standards and stormwater management. 17 (1) Purpose. To establish standards that protect water quality from pollutant loadings of sediment, 18 nutrients, bacteria, and other contaminants; and maintain stability of bluffs, shorelines, and 19 other areas prone to erosion. 20 (2) Land alteration permit. 21 a. Within the bluff impact zone,land alteration is prohibited, except for the following which 22 are allowed by permit: 23 1. Erosion control consistent with section 920(J)(6); 24 2. The minimum necessary for development that is allowed as an exception under 25 section 920(L); and 26 3. Repair and maintenance of existing buildings and facilities. 27 b. Within the water quality impact zone, land alteration that involves more than ten cubic 28 yards of material or affects an area greater than 1,000 square feet requires a permit. 29 (3) Rock riprap, retaining walls, and other erosion control structures. 30 a. Construction, repair, or replacement of rock riprap, retaining walls, and other erosion 31 control structures located at or below the OHWL must comply with Minnesota Rules, 32 chapters 6115.0215, subpart 4,item E, and 6115.0216, subpart 2.Work must not proceed 33 until approved by the commissioner. See Figure 8. Figure 8.Riprap Guidelines Riprap Guidelines Above OHWL:get local Below t:KWL:get DNR government unit permit `— - per-nit or Permission Regulatory ....._._._..._.._..______.__...__....._.._.F.............:..._.._..__......W..w...w..._._.._.` flood OHWL protection , ` elevation ................__....._._.._....---.._...._...._.__ __..._ - -..........--.••._-__._:.._.. River. Fitter Finished slo e below OHWL must be less than a 1:3 ratin- 34 35 b. Construction or replacement of rock riprap,retaining walls, and other erosion control structures 36 within the bluff impact zone and the water quality impact zone are allowed with a permit 37 provided that: 38 1. If the project includes work at or below the OHWL, the commissioner has already 39 approved or permitted the project. Page 99 of 141