No structures or soil disruption shall be located closer than 25 feet from environmentally sensitive areas (ESA). ESA is defined as the top of the banks of all lakes, ponds, and perennial and intermittent streams, as well as wetlands, Cucumber Gulch Wildlife Preserve, and other special environmental or wildlife habitat areas. The setback requirements shall also apply to all channels draining twenty (20) acres or more. Exceptions to the setback requirement may be allowed when acceptable measures to either isolate the stream or otherwise prevent the increase of unfiltered runoff and sediments in excess of historical rates are submitted to and approved by the town engineer. Exemptions and variances to the setback shall be approved per the engineering design standards and construction specifications criteria and as determined by the town engineer. (Ord. 3, Series 2022)