7401 LARIMER RD 2021-12-21 - Laserfiche WebLink

• April 10, 2020 Page 6 Plant Survival During the first late summer monitoring event, plant survival will be evaluated within each of the sampling transect locations. Percent survival of shrubs and trees will be evaluated in the 10-foot belt along the established buffer.The species and locations of shrubs and trees within this belt will be recorded.The established vegetation sampling transects will aid in determining the success of plant establishment. Monitoring and calculations to determine percent survival will occur only in Years 1 and 2 unless survival success standards are not met. This is deemed adequate because plants that survive two summers are considered established. Monitoring Schedule Monitoring events will be conducted per the schedule presented in Table 1. Table 1 Projected Calendar for Performance Monitoring and Maintenance Events Report Due to Year Date Maintenance Review Performance Monitoring Agencies Immediately after 0(BA) X X X construction is complete Spring X X 1 Fall X X X Spring X 2 Fall X X X Spring X 3 Fall Spring X 4 Fall Spring X 5 Fall X X X* Notes: *Obtain final approval from the City of Everett (presumes that performance criteria are met). BA:baseline Maintenance Actions Maintenance will be performed at least annually throughout the performance period to address conditions that could jeopardize the success of the Project. Maintenance visits will entail a walkthrough of the site to see if any flood events have caused significant erosion or major loss of plants, erosion, or slope failures.Vegetation sampling will not occur during these maintenance visits. During regular maintenance visits (per the schedule shown in Table 1), any necessary maintenance actions will be identified and reported to USACE and the City of Everett along with a corrective action plan.