06-12-2002 Council Agenda - Laserfiche WebLink

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1.) If for any reason a soil stockpile of any size is located closer than twenty -five (25) feet from a road, drainage channel or storm water inlet, and will be left for more than seven (7) days, it must be covered with tarps or controlled in some other manner K.) All sand, gravel or other mining operations taking place on the development site shall have a Minnesota Pollution Control Agency National Pollutant Discharge Elimination System General Storm Water permit for industrial activities and all required Minnesota Department of Natural Resources permits. L.) Temporary rock construction entrances may be required wherever vehicles enter and exit a site. M.) Parking is prohibited on all bare lots and all temporary construction entrances, except where street parking is not available. Gravel entrances are to be used for deliveries only as per the development contract. N.) Streets must be cleaned and swept whenever tracking of sediments occurs and before sites are left idle for weekends and holidays. A regular sweeping schedule should be established. 0.) Water (impacted by the construction activity) removed from the site by pumping must be treated by temporary sedimentation basins, geotextile filters, grit chambers, sand filters, up -flow chambers, hydro - cyclones, swirl concentrators or other appropriate controls. Such water shall not be discharged in a manner that causes erosion or flooding of the site, receiving channels, adjacent property or a wetland. P.) All storm drain inlets must be protected during construction until control measures are in place with either silt fence or an equivalent barrier that meets accepted design criteria, standards and specifications as contained in the latest version of the Minnesota Pollution Control Agency's publication, "Protecting Water Quality in Urban Areas." Q.) Catch basins. All newly installed and rehabilitated catch basins must be provided with a sump area for collecting coarse - grained material. Such basins must be cleaned when they are half filled with material. R.) Roof drain leaders. All newly constructed and reconstructed buildings must route roof drain leaders to pervious areas (not natural wetlands) where the runoff can infiltrate. The discharge rate shall be controlled so that no erosion occurs in the pervious areas. S.) Follow -up inspections must be performed by the city on a regular basis to ensure that erosion and sediment control measures are properly installed and maintained. In all cases the inspectors will attempt to work with the applicant and /or builder to maintain proper erosion and sediment control at all sites.