(a) Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site. Any such area which will not be regraded for longer than fifteen days shall also be stabilized.
Soil stabilization refers to measures which protect soil from the erosive forces of raindrop impact and flowing water. Application practices include vegetative establishment, mulching and the early application of gravel base on areas to be paved. Soil stabilization measures should be selected to be appropriate for the time of year, site conditions and estimated time of use.
(b) Soil stockpiles shall be stabilized or protected with sediment trapping measures to prevent soil loss. All stockpiles shall be located at least three (3) feet from any curbs, roads, storm inlets, or other structures that may be declared a potential hazard in the event of a large storm event. Soil stockpiles shall not be located within fifty (50) feet of a free flowing stream. "Other structures" will be declared, as necessary, for each individual site by the site inspector. Temporary soil stabilization shall comply with the Temporary Soil Stabilization Table and other requirements of this Zoning Ordinance. Permanent soil stabilization shall comply with the Permanent Soil Stabilization Table and other requirements of this Zoning Ordinance.
Temporary Soil Stabilization Table
Area Requiring Temporary Stabilization | Time Frame to Apply Erosion Controls |
Any disturbed areas within fifty (50) feet of a stream and not at final grade | Within two (2) days of the most recent disturbance if the area will remain idle for seven days or more |
For residential subdivisions, non-residential subdivisions (e.g. industrial parks and commercial developments such as shopping centers), any disturbed areas that will be dormant for more than fifteen days, but less than one year and not within fifty (50) feet of a stream | Within seven (7) days of the most recent disturbance in the area. For residential subdivisions, disturbed areas must be stabilized seven days prior to transfer of permit coverage of the individual lot(s). |
Disturbed areas that will be idle over winter | Prior to the onset of winter weather |
(Ord. 05-08. Passed 2-25-08.)