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ZONING REGULATIONS §78-1605 Width of Buffer Area from Additional Protection Requirements Protection Wetland (B =Bounce= Change in water level due to runoff event) Classification Boundary (P=Phosphorus) "Manage 1" . 35 feet B:Maintain bounce at or below existing conditions plus 0.5 foot P:Limit loadings to predevelopment loadings times 2(0.28 Lbs/Ac/Yr) "Manage 2" 25 feet B: Maintain bounce at or below existing conditions plus 1.0 foot P: Limit concentration to predevelopment concentrations(200 ppb) "Manage 3" 16.5 feet B: No quantity requirement P: Limit concentration to 225 ppb (d) In cases of new development or redevelop- implementing buffer management plans, ment the city shall require that vegetation in the which may include mowing,burning, and wetland buffer be installed prior to the issuance the use of herbicides. of the certificate of occupancy.The city may waive this requirement in lieu of a cash escrow or letter (2) Maintain only the permitted vegetation in of credit equal to 150 percent of the cost to install the buffer area and must remove all nox- the required buffer. ious weeds and invasive, non-native spe- cies such as European buckthorn, upon (e) The city may allow the disturbance of an obtaining a vegetation removal permit existing buffer area during the course of construc- from the city in conjunction with an ap- tion activity. This disturbance must be kept to a proved buffer management plan. minimum, soils must be decompacted to a level (3) Ensure that all soil surfaces in the buffer that will accommodate root growth,and the buffer area are planted with the permitted veg- area must be re-established as required by the etation and that there is no open soil city The city will determine the amount of allow- surface that may result in erosion. able disturbance. The city may require a cash escrow or letter of credit equal to 150 percent of (4) Ensure that livestock or other domesti- the cost to re-establish the buffer to its original cated animals which have the potential to condition. permanently disturb the buffer area by compaction or vegetation removal be kept (f) The city may require buffer area planting from entering the buffer area and wetland and maintenance when the city determines that by a fence or other suitable means. there is inadequate vegetation in the buffer area to meet the intent of this section. The city may (h) The final upslope edge of the buffer shall be require a cash escrow or letter of credit equal to provided to the city in a hard copy and in a CAD 150 percent of the estimated cost of the vegetation or GIS format in Hennepin County coordinates. and installation. The escrow or letter of credit must be valid for up to two years and may be used (i) Golf course partial exemption. Public and by the city to replace any vegetation that dies. private golf courses existing and in operation on the date of adoption of this article shall be allowed (g) The affected property owner or homeowner a partial exemption from buffer creation and association that is responsible for the mainte- maintenance requirements with regards to mow- nance must: ing or cutting buffer vegetation in areas subject to golf play, subject to the following: (1) Maintain and repair damage to buffer areas from such activities as mowing, (1) At such time that this article requires cutting,grading or other prohibited activ- establishment of a buffer, applicant shall ities, unless mowing is approved by the submit a certificate of survey identifying city as a buffer management plan.Permis- the location, size and type of the wetland sion must be obtained from the city before for which buffer exemption is requested. Supp.No.3 CD78:237