WHATCOM COUNTY NOTICE OF APPLICATION FOR A SHORELINE SUBSTANTIAL DEVELOPMENT PERMIT AND INTENT TO ISSUE A SEPA DETERMINATION OF NON-SIGNIFICANCE Notice is hereby given that on April 11, 2025, Whatcom County Public Works applied for a Shoreline Substantial Development Permit under case number SHR2025-00005 to make stormwater drainage infrastructure improvements within the road right-of-way and a proposed permanent easement to address existing flooding of the road and erosion issues from the overland conveyance of stormwater runoff down the bluff. The project consists of replacing a 12-inch-diameter concrete culvert that conveys stormwater under Semiahmoo Dr. with a 30-inch-diameter beveled end culvert, tightlining (piping) the existing drainage ditch to convey flows down the steep bluff to an outfall on the Strait of Georgia shoreline, and installing an outfall with an engineered flow dispersion system and splash dispersion pad located landward of the High Tide Line (HTL) and mean higher high watermark (MHHW). The application was determined complete on May 9, 2025. The project site is located at 6191 Semiahmoo Ln. & adjacent right-of-way within Section 21, Township 40N, Range 01W of W.M.; Assessor's Parcel No: 405121393116. The project will be reviewed under the Official Whatcom County Zoning Ordinance and Title 24, Title 22, Title 21, Title 20, Title 17, Title 16, International Building Code (IBC), Title 12, Whatcom County Development Standards, Washington State Stormwater Manual and State Environmental Policy Act (SEPA) as applicable. Mitigation may be required pursuant to these ordinances. Whatcom County Planning and Development Services has reviewed the proposal for probable adverse impacts and expects to issue a Determination of Non-Significance (DNS) for the project pursuant to the Optional DNS process per WAC 197-11-355. This may be your only opportunity to comment on the environmental impacts of the proposed project. A copy of the subsequent threshold determination for the specific proposal may be obtained upon request. The file and supporting documents may be viewed at the Whatcom County Planning and Development Services office at 5280 Northwest Drive, Bellingham, WA or at http://www.whatcomcounty.us/2914/Public-Notice. Any person may submit written comments to Andrew Hicks at the above address or at ahicks@whatcomcounty.us within 14-days of the publication of this notice. Written comments must be received by August 8, 2025. Any person has the right to receive notice of and participate in any hearings, request a copy of the decision once made, and to appeal a decision when allowed by law. In addition, any person wishing to receive personal notice of any decisions or hearings must notify the department to receive such notice. IPL0252656 Jul 9 2025