1920 MERRILL CREEK PKY 2018-01-01 MF Import

7. The stormwater drainage system shown on the proposed site plan is approved in concept. • 8. All water quality enhancing facilides must be designed in accordance with city standards, and should be sized to meet the requirements of all future expansion on the site. 9. Per city standards, surface drainage facilities including wetponds, detendon facilities, vegetated swales, and infiltration facilities shall be located outside the associated buffers of all weUands, streams, rivers, lakes, or ponds. Wedands may not be used for detention of stormwater. 10. Development of the site must not adversely affect the hydrology of the site's wedands. The quandty and rate of water entering the weUands, must be determined for current conditions. Under developed conditions a similar rate and quality of roof drainage or treated runoff must continue to be discharged to the weUand(s). Prior to applicadon for building permits and plan review by the Public Works Deparcment, a characterizadon 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 R'orks Departments. (Design and Conshucdon Standards 8c Specifications) 11. Discharge of water to wedands should mimic natural discharges as much as is feasible. Point source discharges should not be created where they do not naturally cecur. Techniques that result in dispersed discharge, such as dispersion trenches or buried perforated pipe located at wedand buffer edges, can be used to mimic naturally occurring sheet flow into wetlands. 12. Per city standards, a temporary construction cheinlink or solid wooden fence a minimum of four (4) feet high must be placed along the edge of any weUand, stream, lake or slope buffers prior to the initiation of any land alteradon activities on the site. (Design and Construcdon Standards and Specificadoas) 13. If the future use of the site wiil result in the potendal for accidental spills of chemicals, including oils or fuels, to the city's sanitary sewer, an Accidental Spill Prevendon Plan will neal to be prepared per the direcdon of the city of Everett's Industria► Pretreatment ?rogram. 14. Per City Policies, due to the proximity of the site to environmentally sensitive areas, seasonal limitations will be placed on land alteradon activities on the site. Land alteration activides are defined in the city's Desien and Concrn�ction S An ��c nd ,�Snerificztio2 as clearing, grubbing, ezcavation, filling, grading, and stcekpiling. Determinadon of the exact seasonal limitation period requires site specific informadon generally not available undl the project's design stage. However, preliminary analysis usu�g ihe mformadon available at this time indicates that clearing and land alteration activides on the project site will be restricted to the period between April 1 and October 1. 15. City Streeu are to be kept clear of dirt and debris at all times during the construction. Dust suppression and street cleaning must occur as directed by the Public Works Inspector. 16. Permits must be obtained for all fill removed from the site and placed within the City Limits. 6