1304 80TH ST SW EVERETT SCHOOL DISTRICT 2018-01-02 MF Import

4 Where native, hybrid natives and/or drought-tolerant species are planted, permanent irrigation systems shall not be required. Temporary irrigation must be provided for two years after planting (SEPA Plant and Animal, Water and Public Services Policies) 3. Plantings in environmentally sensitive areas and their buffers must be designed to simulate Pacific NW native plant communities in terms of composition, cover-abundance, and structure. All mitigation plans shall include herbs in the planting plan. Diversity of environmentally sensitive area buffer habitat must also be ensured through the planting of later successional forested stages of vegetation (e.g. Western red cedar, Douglas fir, and Western hemlock) where needed and appropriate. (SEPA Plant and Animal Policies) 4. The provision of thin-stemmed emergents in the nortf,west portion of wetlands for amphibian breeding habitat must be considered when designing wetland mitigation. (SEPA Plant and Animal Policies) 5. The provision of large woody debris must be considered when designing mitigatic:i for impacts to environmentally sensitive areas and their buffers. Sufficient shrub or woody debris cover must be maintained and planted in and adjacent to environmentally sensitive areas to conceal nests from terrestrial predators and thereby insure the survival of ground nesting bird species. In addition, to minimize entrance of predators and humans into wetlands, "barrier" species such as native roses (Rosa sp.) could be planted in buffers. (SEPA Plant and Animal and Land and Shoreline Use Policies) 4.3.4 Mitigating Impacts of Development on Wetlands 1. Impacts to the wetland buffers and wetland shall be mitigated. Additional studies must be completed and the alterations must be approved by the Planning Director. The following wetland mitigation strategy will supersede the requirements of the Zoning Code: When the water quality improvement and stormwater control functions of a wetland are required to be maintained on or immediately adjacent to the site, they can be incorporated into wetpond design for a proposed development. These existing functions, however, must be provided in addition to what is required to treat and detain stormwater per City standards for a new development or redevelopment. (SEPA Plant and Animal, Water, and Land and Shoreline Use Policies) 2. Development of a project site must not result in significant adverse effects to the hydrology of wetlands on or adjacent to the site. Prior to application for Public Works permits and plan review by the Engineering and Public Services Department, a characterization of the hydrology of the wetland(s) on or adjacent to this project that may be affected by the development of this site must be submitted to and approved by the Planning and Public Works Departments. The information submitted for approval must also make recommendations regarding the rate ind/or volume of stormwater which could be discharged to the wetland after develo,ment without adversely impacting the wetland. (SEPA Plant and Animal, Water, and Land and Shoreline Use Policies) 3. Natural wetlands and wetlands created for wetland mitigation may not be used to meet stormwater detention requirements. (SEPA Plant and Animal, Water, and Land and Shoreline Use Policies)