7007 SEAWAY BLVD 2016-01-01 MF Import

5) A berm was extended north to direct hydrology into a oell set to preserve existing wetland vegetation and grades. This is located at the center of the project area, in the vicinity of the old roadbed. 6) Three small, in-cha�inel pond ceils located just north of the overtlow area of the leaky berm were not constructed in order to preserve the two rows of alder trees found along the overflow channel bar ks. Also, since construction occurred in the ' wintertime, excavating these features would have had the undesirable effect of causing unavoidable turbidity in the creek. 7) A contour shown as 524 on the final construction plans was mislabeled and should have read 523. This contour is located east of the overtlow chennel, and runs north from the old access road culvert to the preserved wetland boundary. It was constructed at 523. 8) The �A (Environmental Protection Area) width was reduced along the northeastern bo�ndary of the site. Extending south from the northeastern property corner, a strip of the buffer 50 feet wide and 1,326 feet long was sold. The area of this EPA width reduction is 1.52 acres. The sae of this 50-foot strip � of land was a requirement of the Sabey Corporation for their agreement to sell Snohomish County 6.932 acres of wetland, buffer and EPA in the southeast corner of the Narbeck Wetland Sanctuary. By assuring the purchase of this parcel nom the Sabey Corporation, Snohomish County Airport can deliver Narbeck Swamp and I its surrounding buffers as a total, interactE�g ecosystem. A second advantage was to allow the connection of the 1.5 mile perimeter walking and jogging path in the southeast corner, through buffer sections 11, 12 and 13. Please refer to Appendix F for a depiction of the adjusted EPA. None of the native plants originally designed for installation in the 1.52 acres of EPA sold to Sabey were canceled. Thus, approximately 250 trees and 100 shrubs were installed as extra plantings in buffer and EPA areas surrounding the southwest corner of the site at Seaway Boulevard and 75th Street southwest and around the parking lot. A second requirement of the transaction with the Sabey Corporation was that they be allowed to discharge storm drainage to the dr�inage channel from the land they own east of the constructed wetland. This storm drain line was designed to be placed beneath the perimeter trail so as to avoid any further disturbance to the wetland buffer. Both The Watershed Company and the City of Everett reviewed and approved the plans. 9) Grading was altered in the area just east of the interpretive shelter as a result of construction occurring in the winter. Because the standing pool of Narbeck Svoamp was at its season4�i hiqh stage, there was minor seepage between the 45