Prepared a Section 401 MDEQ Water Quality Certification submittal, including a Scope of Review, Large Construction Notice of Intent, and a Storm Water Pollution Prevention Plan, for the expansion of a dry-docking boat yard at a site in Hancock County, MS. The following items were also associated with this project: wetland delineation, individual permit, hydrogeomorphic assessment (HGM) , and permittee responsible mitigation plan, including marsh creation.