7702 RAINIER DR 2022-04-05 - Laserfiche WebLink

• PROJECT SUCCESS AND COMPLIANCE Goals and Objectives of the Proposed Mitigation: The primary goals of the proposed mitigation are as follow: • Increase the water quality and habitat functions within the buffer; • Control invasive species and improve vegetative structure within the on-site buffer; • Increase the quantity and diversity of native vegetation within the on-site buffer; and • Allow for responsible development and associated infrastructure, while increasing the ecological functions provided by the subject site. Definition of Success:The planting areas shall meet the following performance standards: Performance Standards: Performance Standard 1: There shall be 100 percent survival of all the plantings after Year 1 or the installation contractor shall replace the material. At least 90 percent of the plant material installed shall survive in Year 2 after installation. Performance Standard 2: There shall be a minimum of 35 percent cover of woody species (shrub and tree canopy layers considered together) in the buffer after the third year post- installation; and a minimum of 50 percent cover by woody material after the fifth year post- installation. Naturally occurring, native plants shall be included in the calculation of vegetation coverage. The species mix should resemble that proposed in the planting plans, but strict adherence to obtaining all of the species shall not be a criterion for success. Performance Standard 3: There shall be no more than 20 percent cover of weedy/invasive species in the mitigation areas at any time throughout the monitoring period. The applicant should notify the City of Everett in writing when the monitoring period is complete and the criteria for success have been met. If the project meets all of the criteria for success at the end of the five-year monitoring period, no further action will be required. If the definition of success is not met, the maintenance and monitoring period will be extended for one year at a time until the site meets the performance standards. If the success criteria are met prior to the end of the five-year monitoring period, the City of Everett may allow an early termination of the monitoring and maintenance at their discretion.This mitigation plan and the accompanying maintenance and monitoring will not be considered complete until written confirmation is received from the City of Everett. Acre Environmental Consulting, LLC October 29,2015 CAS&Buffer Mitigation Plan for—Kymera Inc. -7702 Rainier Drive Everett,WA Page 11