7400 HARDESON RD 2018-01-02 MF Import

My excavation materials must be placed in an upland azea during consduction. Wetland soils must be in separate piles from upland soils. After construction, wetland soils should be returned to the wetland and upland soils placed in upland areas. At a minimum, the top 18 inches of topsoils from wetland areas shall be stored separately from the rest of the soils and replaced as the top layer of fill in the wetlands following construction. Care must be taken not to make "dams" from compacted fill that would alter any subsurface flow. • When onerating machinery in or neaz water, extreme caze shall be taken to prevent any petroleum products, cement, chemicals, or other toxic or deleterious materials from entering the water. If a spill does occur, work shall be stopped immediately and Ecology's Spill Response Section contacted. • Equipment maintenance shall not occur in or adjacent to wetlands and streams. • Whenever feasible, if wetland plant species are not invasive, they should be removed prior to construction and placed aside in a shady damp location, such as under wet burlap sacks. Following construction, they should be replaced in the wetland azea. • Revegetation: At a minimum, erosion control revegetation is required in all cleared areas and should include herbaceous ground cover that does not intcrfere with establishment of native vegetation. If long-term revegetation is required, it should be accomplished during the next most favorable time of year for the particulaz vegetation to ensute the highest level of success. (Note: If revegetation does not occur immediately following recontouring of the site, adequate erosion control measures must be taken.) Native species compatible with preconstruction vegetation pattems shall be used for revegetation. Degraded emergent sites, such as Reed canary grass fields, shall be replanted with species that aze representative of a higher quality emergent, scrub-shrub or forested wetland. If revegetation is required, monitoring should occur once a year for a minimum of two years. (SEPA�Water, Plant and Animal, and Land and Shoreline Use Policies) 2. Pre-construction conferences must be held with the Planning Department, Public Works Inspector and site development manager on sites containing envimnmentally sensitive azeas in order to ensure that all development standazds aze understood. (SEPA Water, Plant and Animal, and Land and Shoreline Use Policies) 3. On sites �vhere environmentally sensitive azea and/or buffer mitigation is required, a report must be submitted by the wetland/stream/wildlife expert stating that the construction was completed per plans prior to issuance of occupancy permits. (SEPA Plant and Animal, Water, and Land and Shoreline Use Policies) 4. All mitigation plans shal� �nclude the provision of adequate topsoils in areas �vhere plantings aill occur. (SEPA Plant and Animal, Water, and Land and Shoreline Use Policies)