4910 27TH AVE W 2018-01-02 MF Import

property, singly and together demonstrate that the proposed development of the property will probably generate signlficlant adverse environmental Impacts. The DNS does not require the developer to conduct a geotechnlcal study, although It does "encourage" it. This study should be made a requirement before a DNS or DS is issued. The study should not only examine the sub.lect property but adjaclent and nearby property as well. The hillside in general is a seepage area. One seep has very recently been found to emerge from under the nearest dwelling and courses north and west onto the applicant's property. Some Indication exists that a property within 100 to 150 yards to the south has experienced landslide activlty. Other Indication exists of subsidence on adjaclent or nearby property. These Indications should be verified. Additional examination of seeps and possible landslide and subsidence areas should be made before a determination is made. Further, since the property contains organic and hydrlc soils, a strong likelihood exists that much such soil must be removed, replaced with compactable material and then mechanically compacted. The possible effects of the vibrations from mechanical compacting cn the neighboring properties must be addressed by a geotechnicai study. 3. Effec on Powder Mill Gulch Stream The DNS fails to deal with Power Mill Gulch as a fishery resource. The runoff associated with tree cutting, vegetation removal, land clearing, uncompactable soil removal, compactable soil placement and compacting, filling and other pre construction and construction activities are not adequately addressed and constitute a probable significant adverse environmental Impact on the creek and any existing or potential fishery. The collection and disposal of storm water runoff during or after construction is not dealt with. Tre Boeing Company, Trourt Unlimited, The Pilchuck Audubon Society and Streamkeepers are committed to enhancing and restoring Powder Mill Gulch Creek fishery. The DNS dons not deal In any way with the Impacts of the changes the development would make on Powder Mill Gulch Creek. There is a stong likelihood that the development will adversely !mpact the fishery potential of the creek. The effects of this proposal on the creek must be made the subject of a fisheries study by a competent wetlands and fisheries biologist. 4. Conclusion The proposal will involve substantial disturbance to vegetalon and soils because much of the surface soils are not compatible with construction and will have to be removed. This violated EMC 20.04.060 A. 1. a. The Proposal will require changes to the topographical nature of the existing property in violation of EMC 20.04.060 A.I. b. The proposal will allow development on steep slopes where there may be Imminent danger of landslides in violation of EMC 20.04.060 A 1 c. The proposal will involve substantial diversion and create altered methods of runoff In violation of EM; 20.04.060 A. 3. a. The proposal shows no minimization of degredatalon of water sedimentation or of enhancement of the suitability of water for fishing and thus violates EMC 20.04.060 a. 3. b. The proposal Involves substantial adverse effects on and alteration of ground water location and flow patterns and thus violates EMC 20.04.,060 A 3 c. The proposal Involves probable significant adverse environmental Impacts which have not be dealt with through the mitigation measures required and therefore an Environmental Empact Study should be required. We reserve the right to amend this letter of appeal. 3