Agenda - Planning Commission - 12/05/1995

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I I I '1 I I I I I I I I I I I I I I Environmental protection § 9.21 2. Temporary ground cover, such as mulch, is used and permanent ground cover, such as sod, is established. 3. Methods to prevent erosion and trap sediment are employed. 4. Fill is stabilized to accepted engineering standards. The removal of natural vegetation shall be restricted to prevent erosion into protected waters, to consume nutrients in the soil, and to preserve aesthetics. Removal of natural vegetation in the overlay districts shall be subject to the following provisions. 1. Selective removal of natural vegetation is allowed, provided that sufficient vegetative cover remains to screen cars, dwellings and other structures when viewed from the water. 2. Clear cutting of natural vegetation is prohibited. 3. Natural vegetation shall be restored insofar as feasible after any construction project is completed to retard surface runoff and soil erosion. 4. The provisions of this section shall not apply to permitted uses which normally require the removal of natural vegetation. Development shall be: conducted so that the maximum number of trees are preserved by the locating of structures in existing cleared areas and natural clearing and the utilization of other site design techniques. Grading, contouring and paving shall be performed to minimize any detrimental affect on root zone aeration and stability of existing trees. Existing trees shall be provided with a watering area equal to at least one-half the crown cover. When trees are removed, the permittee will restore the density of trees, utilizing nursery stocks of a minimum of 1-3/4" diameter measured one foot above the ground, using species generally accepted as suitable for the purpose to that which existed before the development provided that in no case need the density exceed 10 trees per acre. Development shall not reduce the existing crown cover greater than 50% and shall be conducted in such a manner as to preserve the under story and litter. Trees used in reforestation or landscaping must be compatible with the local landscape and climatic conditions. No on-site sewage disposal systems shall be allowed which do not meet the requirements of Section 9.13 of the City Code. This section adopts the softs classification in the Soil Survey of Anoka County as prepared by the Soil Conservation Service. No development shall be permitted on land having a slope in excess of 45%. All very steep slopes (-1-g 12 percent and over) shall be protected. No development of slopeSin excess of ~om 12 to !8 percent shall be permitted unless the applicant shall prove that the following conditions are met: 1. The foundation and underlying material of any material of any structure, including roads, shall be adequate for slope condition and soil type. The applicant can demonstrate that development during and after construction can be accomplished without increasing erosion and runoff and that there is proper utilization of controls to reduce runoff to non-destructive levels.