201 E MARINE VIEW DR 2016-01-01 MF Import

WAC 197•11•960 FOR AGENCY SEPA ENVIRONMENTAL CHECKLIST USE ONLY PUD NO. 1 OF SNOHOMISH COUNTY e. Describe ihe purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. The proposed plan involves some excavation to prepare tor toundations and complete the final site grading for the proposed facility. Concrete footings will be drilisd piers approximateiy �. feet in diameter and 15 feet deep. The proposed drainage pattern ts not expecied to change considerably trom the existing pattern upon completion. A wetland will be developed by Weyerhaeuser on part ot the site that accumulates some surface drainage. Much oi the excavation and earthwork necessary for the site preparation was complete as part of the contaminated waste cleanup conducted over the past two years. t. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. The proposed siie surface is gravel. It is unlikely that the final surface would sustain any appreciabie erosion; however, it is possible that the recently filled site would experience some soii erosion during the constructi�n phase. 9. About what percent oi the site will be covered with impervious surfaces aRer project construction (for example, asphalt or buildings)? Less than 10%. None of the site will be paved with an impervious surface except the driveways and footings for the structures. h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: The swales or drainage gullies now on the sile will be reconstructed in order to provide coilection and transport oi all surface drainage. This system will provfde some retention and infiltration to reduce erosfon from sheet flows. During ihe construction phase, work is planned tor the drier months, and temporary erosfon control lechntques and equipment will be used to minimize impacts from erosion. 5