500 SE EVERETT MALL WAY A BASE FILE 2018-01-01 MF Import

6. Landscaping will be required for surf�:ce pu�ids and basin5 to provide screening and an aesthetically pleasing appeazance. A lands: ape plan must be submitted and approved by the Planning and Public Works Departments during plan review. Landscaping shall be provided outside of the high water mazk and may be required to be i r�clu�led in a separate tract under common ownership. Installation of the landscaping per Cie approved plan is required prior to issuance of a certificate of occupancy. 7. Per city standazds, surface drainage facilides including wetponds, detention facilities, vegetated swales, and infiltration facilities shall be located outside the associated buffers of all wetlands, streams, rivers, lakes, or ponds. WeUands may not be used for detention of stormwater. Per City Policies, due to the proximity of the site to environmentally sensitive azeas, seasonal limitations will be placed on land alteration activities on the site. Land alteration activities aze defined in the city's Decipn �d onct � tion 4t ndards an� Specifications as clearing, grubbing, excavation, filling, grading, and stockpiling. Determination of the exact seasonal limitation period requires site specific information generally not available undl the project's desigrt stage. However, preluninary analysis using the informarioa availabie at this dme indicates that clearing and land alteration activities on the project site will be restricted to the period between April 1 and October 1. 9. Development of the site must not adversely affect the hydrology of the site's wetlands. The quantity and rate of water entering the wetlands, must be determined for current conditions. Under developed conditions a similaz rate and quality of roof drainage or treated runoff must continue to be dischazged to the wetland(s). Prior to application for building permits and plan review by the Public Works Department, a chazacterization 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 Plann:ng and Public Works Departments. (Design aud Construction Standazds & Specifications) 10. The adjacent property owner was required to reconstruct the biofiltration swale along the north east corner of Uus site due to the presence of petroleum contaminated soils. The applicant for this project should be awaze that the pet:oleum contamination may also be present in the wetland on this site. 11. Dischazge of water to wetlands shou(d mimic natural dischazges as much as is feasible. Point source dischazges should not be created where they do not naturally occur. Techniques that result in dispersed dischazge, such as dispersion trenches or buried perforated pipe located at wetland bufFer edges, can be used to mimic naturally occurring sheet flow mto wetlands. 12. The applicant submitted a request to allow reduction of the required 25 foot setback from top-of-banlc of an environmentally sensitive steep slope to 12.5 feet. In addition, a the proposal involves a reduction in the 75 foot buffer from a Category II wetland to 40 feet. Enhancement of disturbed portions of the buffer has been proposed. A decision will be issued on the proposed buffer width reduction at the time this MDNS becomes final. 13. Per city standards, a temporary construcrion chainlink orsolid wooden fence a rninimum of four (4) feet high must be placed along the edge of any wetland and slope buffers prior to the initiation of any land alteration activities on the site. (Design and Construction Standazds and Specifications)