Ordinance 2859-05 - Laserfiche WebLink

SECTION 12: Buffers for Urban Conservancy Wetlands in Marshland Regulation 25 in Section 3.9 of the Shoreline Master Program, Exhibit A to Ordinance No. 2600- 02, as amended, which was codified in EMC I9.33D.090.A.25, and which currently reads: Buffers shall not be reduced below that required by EMC 19.37.100.A. for the Urban Conservancy designated wetlands in the Marshland area, or the wetlands in 1997 SEWIP AUs 10, 8, and 20 on Smith Island, except when the proposal includes significant actions that would restore salmonid rearing functions, such as removing dikes, improving channel connections, and removing fill to create tidal marsh, and except where existing improvements such as the railroad effectively limit the buffers in some areas. BE AND THE SAME IS HEREBY AMENDED TO READ AS FOLLOWS: Buffers shall not be reduced below that required by EMC 19.37.100.A. for the Urban Conservancy designated wetlands in the Marshland area except when the proposal includes significant actions that would restore salmonid rearing functions, such as removing dikes, improving channel connections, and removing fill to create tidal marsh, and except where existing improvements such as the railroad effectively limit the buffers in some areas. SECTION 13: Stormwater Facilities in Buffers Regulation 26 in Section 3.9 of the Shoreline Master Program, Exhibit A to Ordinance No. 2600- 02, as amended, which was codified in EMC 19.33D.090.A.26,which currently reads: Stormwater facilities such as wetponds are prohibited in buffers for Category 1 streams and wetlands and the wetlands in 1997 SEWIP AUs 8, 10, and 20 on Smith Island and the Urban Conservancy designated wetlands in the Marshland area. In situations where stormwater facilities are placed in buffers on Category 2, 3, and 4 wetlands and streams, there shall be no significant loss of buffer functions. BE AND THE SAME IS HEREBY AMENDED TO READ AS FOLLOWS: Stormwater facilities are prohibited in Category 1 stream and wetland buffers. In lower rated wetlands and streams, stormwater management facilities, are permitted only within the outer twenty-five percent (25%) of the buffer, provided that: i. The buffer area has been previously substantially and legally altered and is degraded as defined by PDI 01-005; ii. Native vegetation and soils at the site should be protected and low impact development techniques should be used to promote infiltration of stormwater at the source. Stormwater facilities shall be integrated into the wetland buffer as a natural drainage system. The slopes and all areas that are disturbed shall be planted with native vegetation consistent with a buffer enhancement/mitigation plan. Above ground concrete walls and structures are not permitted. Below grade structures may be permitted only if it can be shown to the satisfaction of the planning director that the use of such materials fits with • 27