1701 121ST ST SE 2025-02-03 - Laserfiche WebLink

5.3 POTENTIAL HABITAT AND BIOLOGICAL IMPACTS The applicant is proposing to remodel the existing clubhouse and reduce the footprint of the existing parking lot. The clubhouse remodel will expand the footprint of the structure by 443 square feet; however,426 square feet are proposed over existing pavement. Only 17 square feet of maintained vegetation will be impacted by the expansion.The remainder of the remodel will utilize the existing clubhouse structure and will not impact vegetated areas near the building.The parking lot reduction will convert 1,111 square feet of parking lot to maintained lawn and reduce overall usage of the area.In total, 17 square feet of maintained landscaping will be impacted to accomplish this project. As mitigation for historic parking lot impacts and proposed impacts to buffer vegetation, 1,128 square feet of buffer enhancement are proposed. Buffer enhancement will be located between the clubhouse and Silver Lake Creek and improve the water quality, hydrologic, and habitat functions performed by the buffer. y By working almost entirely within or over existing structures, the potential for habitat and m biological impacts are limited. Temporary fencing will be installed to ensure that critical areas adjacent to the parking lot and clubhouse are not polluted during construction activities. The minor impacts to landscaped vegetation are not expected to adversely affect the habitat conditions on site. Temporary fencing will also be installed to ensure that construction activities do not result in additional erosion or pollution in wetland, stream, or lake areas.By removing 1,111 square feet of parking lot and enhancing 1,128 square feet of buffer, the proposed project is expected to improve the habitat functions of the site. 6.0 MITIGATION AND RESTORATION PLAN The applicant is proposing to remodel the existing clubhouse and reduce the existing clubhouse parking lot to the originally approved size. To accommodate the clubhouse remodel, 17 square - feet of maintained,landscaped buffer will be permanently impacted.The parking lot reduction will result in the conversion of 1,11 I square feet of paved surface to vegetated buffer. Historic impacts caused by the parking lot expansion and proposed impacts associated with the clubhouse remodel will both be mitigated for via buffer enhancement at a ratio of 1:1. In total, 1,128 square feet of buffer enhancement is proposed. 6.1 BUFFER ENHANCEMENT PLAN The applicant is proposing buffer enhancement in the forested area between Silver Lake Creek and the clubhouse. This area is currently vegetated with a native forested canopy. However, the understory adjacent to the stream is dominated by invasive English ivy and Himalayan blackberry. The dominance of these two species have prevented other native species from growing adjacent to the stream and led to a relatively sparse understory with minimal species richness and structural diversity. Buffer enhancement will consist of removing invasive species from buffer areas and installing a diverse array of native trees and shrubs. The plantings have been designed to mimic the conditions of natural forest succession in the ecoregion. Once invasive species are removed from the enhancement area, the following plant list will be installed. Charter Club Apartments 14 WRI#23061 Critical Area Report&Mitigation Plan November 6, 2023