2801 10TH ST 2018-01-02 MF Import

regulated by the Snohomish Health District." In order to minimize potential exposure to azsenic, the Applicant shall follow all applicable guidelines in the Snohomish Health District's Public Health Advisorv. 3. Coverage under the General5aseline Storm Water Permit is required for construction si[es greater than five acres. If you have any questions, please contact Mr. John Drabek, at the Department of Ecology's Water Quality Program (649-7293 j. NIITIGATION OF ADVERSE IMPACTS BY SEYA 1. My grading/fill on this site shall be done so as to not impact the surrounding properties. (SEPA Earth, Land and Shoreline Use Policies.) 2. Full standard half-street improvements aze required [o lOth Street from Pine Street to Poplar Street, including but not limited to curb, gutter, sidewalks, street widening and drainage contro( per City Design Standards. (SEPA Transportation Policies) 3. Landscaping :>hall be provided along the southeast side of tlie proposed concrete wall located betweea the public entrance and the detention entrance on the east side of the proposed buil�iing. Landscaping shall consist of groundcover and shrubs. The purpose of this requirement is to provide visual treatment to reduce the aesthetic impact of the proposed I S-foot wall. (SEPA Aesthetics Policies). 4. The Applicant shall take all necessary measures to retai�i the existing evergreen trees in the norUteast and noRhwest comers of the site. The trees will provide effective scrzening and visual treatment of the proposed facility. (SEPA Aesthetics Policies) 5. Handling, treatment a��d disposal of azsenio-contaminated soils on the site shall be performed in accordance with the recommendations of the DenneXYouth Center A*senic Site Characterization dated September 12, 1995. This includes the use of the following institutional controls and construction measures: a. Construction workers and employees at the site should be educated about the ris'ss of working azound arsenic. The state Department of Labor and Industries should be consulted regazding safe construction practices. b. A construction health and safety plan shall be prepazed prior to issuance oEbuilding permits. The plan must include appropriate controls to protect workers and non- construction individuals &om exposure to azsenic-impacted soil. c. An erosion control plan must be submitted for approval by the Public Works ' Department. • d. All excavated soils that will be removed from the site and disposed of at a remete location shall be tested for arsenic contamination prior to disposal. Testing procedures will be agreed upon by both [he proponent's azsenic soils consultant, Landau Associa[es, Inc., and the Department of Ecology. If any such so91s exceed cleanup levels established by the Department of Ecology, disposal must occur under the direction of that department and the Snohomish County Health District. e. The construction azea.must be fenced and non-construction individuals must be ' restricted to limit the potential for direct contac[with exposed metals-impacted soils. 2 �