vvEPA United States Environmental Protection Agency Spirit Lake Cleanup Progress Dredging S 360,000 cubic yards of impacted sediment has been removed from the in-water work areas S 52,000 cubic yards of impacted sediment/soil has been removed from the upstream Unnamed Creek work areas Capping ^ Approximately 80 acres of in-water work areas and 11 acres of the upstream Unnamed Creek work areas have been covered with a clean multi-layer remedial cap Enhanced Natural Recovery ^ 12 acres in-water have been covered with a thin layer of clean sand to accelerate natural recovery processes in the sediment Map of completed, ongoing, and upcoming work areas and activities in Spirit Lake Great Lakes Legacy Act (GLLA) Project. Spirit Lake Environmental Cleanup Continues Under GLRI Spirit Lake GLLA Remediation and Restoration Project Update Duluth, Minnesota October 2022 The U.S. Environmental Protection Agency (EPA) and United States Steel Corporation (USS) have partnered to clean up impacted sediment and soil in the Spirit Lake area of the St. Louis River in Duluth, Minnesota south of Morgan Park. The cleanup began in Fall 2020 and will continue through 2023. 2022 Completed and Ongoing Work Dredging of impacted sedimentfrom the Shallow Sheltered Bay (SSB) (see map, left) mm completed in summer 2022. Photo shows hydraulic and mechanical dredging. 1 —¦ / • " Capping in the Wire Mill offshore and Unnamed Creek offshore areas was completed in June 2022, Capping is ongoing in the SSB over the dredged surface. The Delta Upland Cap is being constructed adjacent to the SSB. The cap area will support recreational features designed in coordination with the City of Duluth. Dredged material was placed into Geotubes ® within the Upland Confined Disposal Facility (CDF). -.01 ¦ . . I Debris from the SSB shoreline area was removed by mechanical dredging. Placement of rockfor shoreline protection is ongoing along select sections of shoreline within the project area. Enhanced Natural Recovery-n I ^ Dredge-^.*¦" /yk;£5recige; H / / /^rea - Capping In Progress // / (Dredging Completed)~yS/ ' /J Unnamed \ CreekDelta\ ' ' J,* v'-v \ Cap and Upland Cover Bay/ ¦ /Delta Cap Only Unnamed Creek~~ Dredge and Cap Upland CDF Weir Pond c Dredge Dredge ^Enhanced Natural f/f\ Recovery Operable Unit J (OU-J) CDF Dredge Borrow Area CDF= Confined Disposal Facility 19./ _ . fl Legend I I Spirit Lako GLLA Project Boundary n U.S. Stool Supcifund Site Boundary O Completed Work Work in Progress __MonnwedNaIuialRecoveryAieas_ Continued, reverse ------- 2022 Upcoming Work • Capping will be completed in the SSB. Wire Mill Pond and Unnamed Pond. • Rock will be placed along the Shallow Sheltered Bay to protect the shoreline. • The Delta Upland Cap will be completed. • Pedestrian Trail constmction will begin. • A new railroad bridge will be constructed at Unnamed Creek and the railroad bridge at Wire Mill Pond will be improved. 2023 Work Activities • During the spring and summer of 2023, habitat restoration planting will occur in upland and m-water portions of the site. • Construction of the pedestrian trail will be completed. Project Outreach • The informational kiosks at the Morgan Park Community Center and at the 88th Avenue West and Idaho Street site entrance have been updated with current project information. • Weekly photos of construction progress are also available on the EPA Spirit Lake Website: https://www.epa.gov/great-lakes-aocs/spirit-lake-great-lakes-legacy-act-cleanup Delta Upland Cap Pedestrian Trail Hilton Street Vim' of site from Morgan Park when project is completed For more information, please contact EPA's Community Involvement Coordinator Francisco Arcaute at 312-886-7613 or arcaute.francisco@epa.gov, or EPA's Project Manager Mark Loomis at 312-886-0406 or Loomis.mark@epa.gov. Q31S3nt)3M 33IAH3S NdD13d t?0909 II 'oSbdiiq SS\TD ISNId (re-D) "PA|a uos>per 'M LL 0DIJ.JO wej3oj(j |euoiiefij se^ei leejg AdusBv uoipajojd iBiueuuuojiAug S91B1S psiwn Vd3'cx ------- |