Resolution 4644 - Laserfiche WebLink

14. Per City standards, surface drainage facilities including wetponds, detention facilities, vegetated swales, and infiltration facilities shall be located outside the associated buffers of all wetlands, streams, rivers, lakes, or ponds. Wetlands may not be used for detention of stormwater. 15. All collected surface water exiting the subject property must be conveyed to the nearest established, stable drainage course, within the naturally occurring drainage basin, by pipe or by an approved swale in a manner that will not result in erosion or flooding. Sufficient downstream information and analysis must be provided to enable the City to determine that this requirement is being met. Appropriate easements will be required if conveyance must occur across private property. 16. The City may require geotechnical analysis for the proposed location and configuration of the wetpond and structural design of any retaining walls or rockeries associated with this facility. All live detention storage should be provided in the vault to minimize the chance of failure of the surface facility and an impermeable pond liner may be required to prevent water infiltrating from the pond. 17. The outlet pipe from the pond, shown running parallel to the east side of the pond, should be located outside of the 25-foot steep slope setback. Only those discharge pipes necessary to convey the discharges to the creeks would cross the steep slope setback. All catch basins an/or manholes associated with the storm drainage facilities and discharges must be located outside of the steep slope and slope setback areas. 18. Any broken or damaged sidewalk shall be repaired/replaced per the Public Works Inspector. 19. Per City standards, a temporary construction chainlink or solid wooden fence a minimum of four (4) feet high must be placed along the edge of any wetland, stream, lake or slope buffers prior to the initiation of any land alteration activities on the site. (Design and Construction Standards and Specifications) 20. A permanent fence must be constructed along the entire edge of the environmentally sensitive area (ESA)buffer. The design of the fence shall be split rail, or an alternative approved by the Planning Department prior to issuance of permits. City of Everett ESA signs must be placed at approximately 50 foot intervals along the fence. The signs are available from the Planning and Community Development Department. (SEPA Earth, Plant and Animal, and Land and Shoreline Use Policies) 21. The site contains portions of more than one drainage basin. The amount of area draining to the creek in each basin after development should not be greater than the area draining to each creek before development. 22. Per City Policies, due to the proximity of the site to Merrill and Ring Creek and Narbeck Creek, seasonal limitations may be placed on land alteration activities on the site. Land alteration activities are defined in the city's Design and Construction Standards and Specifications as clearing, grubbing, excavation, filling, grading, and stockpiling. Determination of the exact 4