1600 121ST ST SE 2016-01-01 MF Import

After excavation is complete, all created wedands and buffers will be hydroseeded and planted wiih approved plant species. Plant survival the first year is the responsibillty of ihe landscape contractor. The landscape contractor may install a temporary irrigation system to insure plant survival the first summer. As required in the MDNS, the western bank of the Silver Lake Creek will be reshaped adjacent to the proposed swale. The reshaping will be performed in order to obtain a 3:1 slope in the 25 foot buffer. T'he total area of work adjacent to Silver Lake will be less than one acre. Maintenance of planting areas will be performed by the landscape contractor for the five year monitoring period. The biologist will make recommendadons as necessary and appropriate, to improve the success of the plantings. These may include mechanical removal of undesirable plants, addidonal plantings, plant replacement, u-rigadon, and any other measures necessary for success of mitigation. Two informadonal signs will be placed on the perimeter of the wedand #i and #2 buffers and the south wedand buffer. These signs will be mounted on steel posts set in concrete so as to be permanent. The si�;ns will say: "Wedands are unique and valuable areas that provide habitat for wi!dlife, improve wacer quality and retain storm runoff. These areas have been set aside in protecdve easements to remain and develop natural plant communides. P!ease �o not enter or disturb ihese areas." PLANTING PLAN Plant species nadve to the western Washington Puget lowlands will be used at the site. Plant species for this project have been selected hased on their suitabillty for final construcdon site condidons, anticipated hydrology after constructio.�, compadbility wlth existing vegetation, and wlldlife habitat value. Previously submitted plans called for seeding the disturbed areas with ryegrass. In accordance with d�e MUNS, the disturbed areas will be seeded wlth either nadve species or sterile introduced grass species. G?