5900 36TH AVE W SEPA 015 - 034 - SOUNDVIEW BUSINESS CAMPUS - VERITAS Land Use Decision Documents 2025-04-22

Stormwater from the proposed project is designed to mimic natural drainage patterns in the basin and, as a result, will maintain the baseline condition for this parameter. Road Density & Location The only road crossing over Edgewater Creek is a tall bridge for W. Mukilteo Boulevard. The bridge is not believed to have any significant impact on the stream given its disconnectedness due to height. The BNSF railroad crossing at the northern terminus of Edgewater Creek is the only other disruption in this category, with the majority of Edgewater creek being buffered from roads by the forested ravine. Therefore, the baseline conditions are properly functioning for the Edgewater Creek action area. This project will not change road density or location and, as a result, will maintain the baseline condition for this parameter. Disturbance History Edgewater creek, like the other creeks emptying north into Possession Sound, has a high level of historical disturbance related to the railway and timber industry. Additionally, road runoff from residential development designed before modern stormwater conveyance requirements has destabilized portions of the sloped forested ravine associated with the stream. Baseline conditions for this element are at risk for the Edgewater Creek action area. Although the project will involve approximately 33 acres of clearing and grading within the action area, this change will not have a significant impact on the level of disturbance within the watershed. This is mainly due to the existing high level of disturbance resultant from surrounding developed areas and relatively recent clearcutting of the subject property. As a result, this proposed project will maintain the baseline condition for this parameter. Riparian Reserves Within the Edgewater Creek drainage basin, riparian vegetation is dense and relatively undisturbed by recent activity. Riparian buffers are relatively wide compared to other nearby, urban stream channels. Based on these findings, riparian reserves are properly functioning in the Edgewater Creek action area. No riparian vegetation will be disturbed by this project, so it will maintain the baseline condition for this parameter. 4.4 PROJECT DESCRIPTION The applicant is proposing four industrial manufacturing buildings with associated parking and utilities on the subject property. With the exception of the steep slope area in the southwest portion, the site will be cleared and mass graded, cutting the higher, southern portion and filling the lower, northern portion to create a relatively level development site. Once clearing and grading is complete, underground utilities will be installed and then construction of the buildings and drive aisles will begin. Building construction will occur in two phases and is expected to occur over a two year period. Biological Evaluation 17 WRI #14109 Soundview Business Campus Revision #2: October 2, 2015