1720 121ST ST SE 2016-01-01 MF Import

wetlands will not signiGcandy a�ect the hydrology (storm water storage) of the site bec�use the 6ydrologic [unction has already been altered by past 6ll actividea. 'Ibe proposed fill activity will, 6owever, eliminate the hydrologic functioac that now exist in the 0.24 acres of un6lled wedand. Wildlife value of the 5lled wedand is very limited because of t6e aparse vegetation and lack of suitable soiL The unfilled wetland contains some atandIng water and supports vegetadon suitable for waterfowl and seed-eating songbirds. The wedand area at the southem ead of the site will not be sigaificandy disturbed by the projec�t. A smaU corner of t6e wedand (0.03 acres), oonsisting of 6ydric soils and mowed grasses, will be lost by conatruction of a four-plex unit This 0.03-acre Ggure is included in the 0.24-acro total listed abuve. Remaining wetland areas will be either maintained or enhanad. PROPOSED MITIGATION Type and Locallon of Mitigation Wetland loss will be mitigated by: 1) creating 0.25 acres of wedands from existing uplands; 2) enhancing 0.11 acres of existing wetland; and 3) enhancing .03 acres of riparian habitat along Silver Lake Creek. Figure 3 shows d►e proposed plan. Wetland Creation Wedands will be created en the wet property boundary and just north of the e�tisting pond at We southwest corner of the properry (Figure 3). Existing upland areas will be excavated to elevations compazable with the pond and Silver Lake Creek channel. T6e aew wetland arai will be lined with peat and organic sails excavated from t6e wetland area to be filled. Fiabiat to be created will include open water and stands of emergent and shrub vegetadon (e.g., burreed, spiraea, etc.). Wetland Enhancement Wetland enhancement will be carried out on the edge of t6e eicisting pond at the southwest corner of the property along Silver Lake Creek (0.03 acres) and on the northwest corner of the property (0.01 acres). This will incb• de plantiag of prefeaed wildlife wedand and riparian species such as rnttonwood, reti osier, dogwood, crabapple, willow, and wild rose.