Item 7: Ordinances on Goal 5 Natrual Resources Study

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NO.1 10/18/05 (3) Planting and Replanting. Planting or replanting within the /WR conservation area shall comply with the following standards: (a) Areas of existing bare soil and areas which have been cleared or graded in accordance with subsection EC 9.4980(2) or EC 9.4980(5) shall be planted with native plant species. Except as required in (b) and (c) below, plant species and plant spacing used for such plantings shall be appropriate to increasing to the greatest extent practicable the capacity of the conservation setback area to filter pollutants from runoff that flows across the conservation setback area (not including storm water collected and discharged from impervious surfaces). Where existing native vegetation already serves this function to some extent, additional native plants shall be planted in order to augment native vegetation already existing. Plant species selected for all plantings shall be appropriate to the site given its topography, hydrology, soil, and existing native plant species. (b) Planting or replanting within 25 feet of a Category B, C, or D stream within the /WR conservation area shall include native tree or large shrub species and located so as to provide substantial shading of the channel during times of peak solar input. (c) Where non-native or damaged trees are removed within 25 feet of a Category B, C, or D stream within the /WR conservation area, they shall be replaced with native tree or large shrub species and located so as to achieve equal or greater shading of the channel during times of peak solar input as the trees removed. (d) Replanting of areas cleared of existing vegetation must be completed within 90 days following the removal or clearing, unless otherwise approved by the planning director. (e) Plantings shall not adversely affect adjacent protected water resources or existing native vegetation through shading or invasion by plant species introduced into the setback. (4) Construction Practices. Construction within the /WR conservation area, and within areas removed from the /WR conservation area shall comply with the following standards: (a) For purposes of this subsection, heavy machinery is defined as motorized or mechanized machinery or equipment capable of deliberately or inadvertently damaging vegetation, or damaging or compacting soil. The following standards shall apply to use of heavy machinery within the /WR conservation area: 1. On sites where soils are susceptible to severe compaction or structural damage when wet or saturated, use of heavy machinery shall be limited to the period between June 15 and September 30, unless otherwise approved by the planning director. 2. Use of heavy machinery shall be the minimum necessary for the use or activity and shall be restricted to those areas where its use is necessary. (b) Petroleum products, chemicals, or other deleterious materials used in the construction process shall not be allowed to enter a stream or wetland that is within a /WR conservation area. Ordinance - 17