Ordinance 2909-06 - Laserfiche WebLink

7. Include provisions for an assurance device as provided by Chapter 40 of this title to ensure that work is completed in accordance with the mitigation plan and that restoration or rehabilitation is performed in accordance with the contingency plan if mitigation failure results within five years of implementation. H. Construction Plans. Construction plans necessary to implement requirements of the detailed mitigation plan shall be provided prior to issuance of construction permits. Plans shall include site plans, cross-sections, the proposed construction sequencing and timing; surface and sub -surface hydrologic conditions, including proposed hydrologic regimes for compensatory mitigation areas; grading and excavation details, erosion and sediment control measures; a planting plan specifying plant species, quantities, location, size, spacing, and density. I. Protective Covenants and Tracts. Lakes/ponds and their buffers on development sites, including compensatory mitigation areas, shall be placed within a critical area protective covenant or tract as required by Section 22 (37.220) of this chapter. Created lakes and ponds. Lakes and ponds created to mitigate alteration, restoration, creation, or enhancement activities allowed pursuant to this chapter shall be protected according to the applicable category (with salmonids or without salmonids) being replaced. (This section shall be codified as EMC 19.37.150.) Section 16: Classification of Streams A. Streams shall be classified based upon an amended version of the water classification system established under WAC 222-16-030 as follows: 1. Type S Stream. Those streams, within their ordinary high water mark, as inventoried as "shorelines of the state" under Chapter 90.58 RCW and the rules promulgated pursuant thereto, including the periodically inundated areas of their associated wetlands. 2. Type F Stream. Those stream segments within the ordinary high water mark, including the periodically inundated areas of their associated wetlands that are not Type S streams, and which are demonstrated or provisionally presumed to be used by salmonid fish. Stream segments which have a width of two feet or greater at the ordinary high water mark and have a gradient of 16 percent or less for basins less than or equal to 50 acres in size, or have a gradient of 20 percent or less for basins greater than 50 acres in size are provisionally presumed to be used by salmonid fish. A provisional presumption of salmonid fish use may be refuted at the discretion of the community development director where any of the following conditions are met: a. It is demonstrated to the satisfaction of the city that the stream segment in question is upstream of a complete, permanent, natural fish passage barrier, above which no stream section exhibits perennial flow; 37