06-12-2002 Council Agenda - Laserfiche WebLink

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C.) Storm water treatment devices that remove oil and floatable material (e.g., basin outlets with submerged entrances) must be part of BMP systems. D.) Where feasible lightly used vehicle traffic areas such as overflow parking lots should use pervious surfaces. E.) If the proposed project site includes a tributary that currently experiences erosion and /or sedimentation problems, the applicant shall work with the city to include channel modifications in the project that will also address the existing erosion and /or sedimentation problem. H.) Pe anent buildings erected on sites that border directly on and all tributaries to a Minnesota Department of Natural Resources designated trout stream and /or a Minnesota Pollution Control Agency designated Outstanding Resource Value Water must not be occupied until the permanent vegetative cover has been established. Such cover must meet this definition of "final stabilization." I.) The applicant shall consider methods for reducing the amount of impervious surface on the site. (Commentary: A useful publication is "Better Site Design: A Handbook for Changing Development Rules in Your Community" available from the Center for Watershed Protection in Ellicott City, Maryland.) Suggestions include: 1.) Disking in compost or in some other manner that increases the porosity of the soil that will be come covered by lawns. (Commentary: The movement of heavy vehicles associated with construction activities compacts the soil, and thus decreases its ability to absorb water. This is true even for some types of sandy soils. The common grasses chosen for lawns do not have a deep enough root system to overcome construction vehicle related soil compaction problems.) 2.) Reduced road widths. 3.) Eliminating paving in the center of cul de sacs. 4.) Reducing sidewalk widths. 5.) Allowing and providing for shared parking. 6.) Installing semipermeable /permeable or porous paving. 7.) Vegetated swales instead of curb and gutter. 8.) Filter strips 9.) "Green" (vegetated) roofs.