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

species or sterile introduced grass species, such as wheat thatch, should be used h� minimize long-tertn competition with native forbs and grasses (rather than ryegrass). 5. The Phase I planting should use the random triangular planting pattem recommended in the Phase II planting plan in order to minimize an unnatural ordered appearance to the buffer. B. Phase II: 1. A 75 foot buHer must be provided adjacent to the southem wetland on that site (a nparian wetland) per Section 37.100 of the Zoning Code, or a wetland buffer modification must be obtained through Review Process IIC. (Note: a maximum buffer reduction of 50% is pertnitted through Review Process IIC. The buffer must be from the edge of the wetland, inGuding the expanded wetland area. The buffer shown on the site plan is less than 37-1/2 feet in some places.) A 25 foot buffer is required adjacent to Silver Lake Creek. The required vegetated swale length must be constructed outside of the buffers. 2. Final plans must show the Iocation of Silver Lake Creek on the site and to the east of Phase II. 3. The Applicant must modify the Silver Creek stream corridor by reshaping the west stream bank adjacent to the proposed swale to obtain a 3:1 slope from present top-of-bank to 25 teet back from top-of-bank. This reshaped bank must be replanted with native streamside vegetation. 4. Red osier dogwood must be planted along with the willow in the expanded portion of the south boundary wetland. The red osier dogwood and willow must be planted at 2 feet on center. 5. To minimize erosion in Geared areas, either appropnate native species or sterile introduced grass species, such as wheat thatch, should be used to minimize long-term competition with native forbs and grasses (rather trian ryegrass). C. Phaae 1 and Phase II: 1. With elimination of the degraded riparian cortidor connecting the Phase II weGand with wetland 2 and elimination of the native vegatation connecting wetlands 1 and 2, animal migration will be significantly impacted. The project needs to maintain wetland comdors by establishing environmentally sensitive habitai areas alo�g the southem half of the westem boundary of Phase I from wetland 2, along the westem half ot the so��them boundary, and along the southem half of the eastem boundary. These areas must be a minimum of 10 feet wide, with 15 feet recommended, and they must be planted with vegetation approved by the Planning Department. 2. Fencing must be provided at the edge of the buffers for all we9ands and the stream, and along the edge of the wildlife cortidors required in condition a. above. Fencing of the central weUand must be a split rail