6400 36TH AVE W 2018-01-02 MF Import

Nri X� C. H 9 xHxaa U. tNZH �C C] HO ItIV x En [�] OE H U OH HMO �V n H C a�vow. a"10i 104 4 csdars (Thuja plicata) will be planted in the wetland edge and the buffer. Nursery stock (4 foot B !it B) will be planted in a random pattern equivalent to IS foot centers along the new wetland t edge and (one gallon container size) in a random pattern equivalent to 25 foot centers within the 5C foot buffer area. This will require 150 of the 4-foot trees and 200 of_the gallon container trees. Pacific willow (Salix lasiandra 4 foot B & B) will be planted in the wetlands on 10-foot t centers in a zone occupying no more than one quarter of each wetland patch and centered on a contour corresponding to halfway between the wetland edge and the deepest point of the wetland. This will require 60 of the Pacific willow plants. Slough sedge (Carex obnupla) collected from the existing wetland will be planted on 2-foot centers among the pacific willows. The few specimens of skunk cabbage that can be collected from the existing wetland before clearing will also be planted in clusters of three in the wetlands among the Pacific willows. All planting should occur as soon after completion of construction as possible, and be completed by March 1, 1991. a if all planting can not be completed by that date, supplemental water will be applied as .y recommended by the wetland biologist contracted to monitor the success of the project. 1.1.4 Monitoring Plan i To determine the success of the compensation wetland, a monitoring plan will be implemented (See the commitment letter in Appendix B). Construction and planting will be monitored to assure hydrological functioning and a proper start for the vegetation. A'Time-Zero' report will be completed at the completion of construction and planting that will describe the project as actually built anct note any changes from the design plans. It will include descriptive photographs of each wetland and will serve as the benchmark for monitoring the success of the project. During each summer for five years following completion of construction, the species composition, density, and mortality of plants in the wetland and planted area will be measured. Water depth will be measured at three places in a transect through the deepest part of each pond in the first two weeks of January, May, and August each of the five years. A narrative description of any observed sedimentation or muddiness of the water will be reported each time. A water sample for standard analysis will be collected in May each of the years.: hotogrnphs of the site will be taken during each water depth sampling showing the berms, the water, the wetland vegetation, and the buffer vegetation. An annual report will be submitted by September 30th each of the five years to the City of Everett with a copy to the Washington Department of Ecology describing the monitoring results, progress or problems with meeting the compensation goals, and any corrective actions taken or necessary. The standard to be met is sufficient vegetative cover to prevent erosion in the first year and sufficient survival or colonization by wetland species to achieve 90 percent cover in the wetlands in five years. 1.1.5 Contingency Plan The goal of the mitigation project is to achieve a valuable, functioning wetland. Careful testing of conditions and materials necessary and calculation tnd specification of construction materials and resu!ts has been completed. Construction monitoring will occur to be sure that the constructors understand and accomplish the key items to make the project work. A monitoring DAMES & MOORE