[ { "id": "east-palestine-oh", "name": "East Palestine derailment area", "city": "East Palestine", "state": "Ohio", "region": "Midwest", "focus": [ "Water", "Land", "Air" ], "statusLabel": "Monitoring & stewardship", "issue": "The February 2023 train derailment released hazardous materials, including vinyl chloride and acrylates, prompting a major emergency response and environmental cleanup.", "whyItMatters": "Long-term sampling and clear public reporting help residents understand environmental conditions after a major industrial accident.", "currentResponse": "EPA’s September 2026 update identifies a monitoring, maintenance and reporting phase, including quarterly groundwater, surface-water and drinking-water sampling.", "mycopathQuestion": "What can long-term monitoring teach us about selecting research questions and explaining evidence to communities before proposing any new treatment?", "sourceTitle": "EPA: East Palestine, Ohio Train Derailment — September 2026 update", "sourceUrl": "https://www.epa.gov/east-palestine-oh-train-derailment", "reviewed": "2026-09-27", "stateCodes": [ "OH" ] }, { "id": "cuyahoga-river-oh", "name": "Cuyahoga River Area of Concern", "city": "Cleveland–Akron corridor", "state": "Ohio", "region": "Midwest", "focus": [ "Water", "Land" ], "statusLabel": "Active cleanup", "issue": "Historic industrial contamination, stormwater, sewer overflows and erosion have affected river sediment, water quality and habitat.", "whyItMatters": "Contaminated sediment and damaged habitat can undermine the river’s recovery even as overall water quality improves.", "currentResponse": "EPA reports Gorge sediment remediation began in 2025 and is expected through 2027. Old Channel cleanup design and other restoration projects continue.", "mycopathQuestion": "How could carefully tested vegetation and runoff management complement existing sediment cleanup and habitat restoration?", "sourceTitle": "EPA: Cuyahoga River AOC", "sourceUrl": "https://www.epa.gov/great-lakes-aocs/cuyahoga-river-aoc", "reviewed": "2026-09-27", "stateCodes": [ "OH" ] }, { "id": "maumee-aoc-oh", "name": "Maumee Area of Concern", "city": "Toledo and surrounding watersheds", "state": "Ohio", "region": "Midwest", "focus": [ "Water", "Land" ], "statusLabel": "Active cleanup", "issue": "Legacy industrial pollution, sediment contamination and extensive wetland loss affect watersheds entering western Lake Erie.", "whyItMatters": "Persistent sediment pollutants and lost habitat limit ecological recovery; some impairment categories remain despite substantial completed cleanup.", "currentResponse": "EPA reports continuing sediment and habitat work. An August 2026 agreement supports design for remaining PCB contamination in part of the Ottawa River.", "mycopathQuestion": "Where could monitored wetland or root-zone systems help manage runoff while preserving established cleanup responsibilities?", "sourceTitle": "EPA: Maumee AOC — August 2026 update", "sourceUrl": "https://www.epa.gov/great-lakes-aocs/maumee-aoc", "reviewed": "2026-09-27", "stateCodes": [ "OH" ] }, { "id": "ashtabula-river-oh", "name": "Ashtabula River recovery", "city": "Ashtabula", "state": "Ohio", "region": "Midwest", "focus": [ "Water", "Land" ], "statusLabel": "Recovery milestone", "issue": "Decades of industrial activity left contaminated sediment and reduced natural riverbank habitat.", "whyItMatters": "This river demonstrates that coordinated cleanup can restore beneficial uses. Protecting the gains matters as much as identifying new needs.", "currentResponse": "The Area of Concern was delisted in 2021 after all designated beneficial-use impairments were removed. It is a recovery example, not an untreated site.", "mycopathQuestion": "Which lessons from sediment removal, habitat work and long-term evaluation could guide realistic future restoration plans?", "sourceTitle": "EPA: Ashtabula River AOC — Delisted", "sourceUrl": "https://www.epa.gov/great-lakes-aocs/ashtabula-river-aoc-delisted", "reviewed": "2026-09-27", "stateCodes": [ "OH" ] }, { "id": "black-river-oh", "name": "Black River recovery", "city": "Lorain", "state": "Ohio", "region": "Midwest", "focus": [ "Water", "Land" ], "statusLabel": "Recovery milestone", "issue": "Historic industrial discharges and urban and agricultural activity degraded water quality, habitat and sediment.", "whyItMatters": "Recovery depends on sustained cleanup and habitat investment. This river’s progress provides evidence that long-term environmental work can deliver results.", "currentResponse": "EPA reports all beneficial-use impairments were removed by June 2026, allowing the formal Area of Concern delisting process to begin.", "mycopathQuestion": "How can communities maintain recovered habitat and use monitoring to detect new pressures early?", "sourceTitle": "EPA: Black River AOC", "sourceUrl": "https://www.epa.gov/great-lakes-aocs/black-river-aoc", "reviewed": "2026-09-27", "stateCodes": [ "OH" ] }, { "id": "hudson-river-pcbs-ny", "name": "Hudson River PCBs", "city": "Fort Edward–Troy and Lower Hudson", "state": "New York", "region": "Northeast", "focus": [ "Water", "Land" ], "statusLabel": "Monitoring & investigation", "issue": "Historic PCB releases contaminated river sediment and entered the aquatic food chain.", "whyItMatters": "Pollution can persist in fish after major cleanup. Recovery must be measured over time rather than inferred from clear-looking water.", "currentResponse": "Upper River dredging has been completed; monitoring, five-year reviews and Lower River investigations continue. EPA maintains links to fish-consumption advisories.", "mycopathQuestion": "What evidence would show lasting reductions in contamination across sediment, water and the food web?", "sourceTitle": "EPA: Hudson River cleanup", "sourceUrl": "https://www.epa.gov/hudsonriverpcbs/hudson-river-cleanup", "reviewed": "2026-09-27", "stateCodes": [ "NY" ] }, { "id": "gowanus-canal-ny", "name": "Gowanus Canal", "city": "Brooklyn", "state": "New York", "region": "Northeast", "focus": [ "Water", "Land" ], "statusLabel": "Active cleanup", "issue": "Industrial discharges and combined-sewer overflows left canal sediment contaminated with PAHs, PCBs and metals.", "whyItMatters": "Cleaning sediment without controlling incoming pollution can compromise recovery. Both historic waste and continuing sources require attention.", "currentResponse": "EPA’s remedy combines dredging, stabilization, capping and source controls. Most upper-canal work finished in 2024; middle-section design was finalized in 2025.", "mycopathQuestion": "What could source-control and post-cleanup monitoring teach us about designing complementary natural treatment research?", "sourceTitle": "EPA: Gowanus Canal cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0206222", "reviewed": "2026-09-27", "stateCodes": [ "NY" ] }, { "id": "newtown-creek-ny", "name": "Newtown Creek", "city": "Brooklyn and Queens", "state": "New York", "region": "Northeast", "focus": [ "Water", "Land" ], "statusLabel": "Investigation & design", "issue": "The heavily industrialized creek has contaminated sediment, with cleanup concerns including PCBs, PAHs and copper.", "whyItMatters": "Sediment contamination and movement of pollutants between water, sediment and organisms complicate the recovery of urban waterways.", "currentResponse": "EPA selected an East Branch interim cleanup in January 2025 involving dredging and sediment stabilization. Broader creek studies and cleanup design continue.", "mycopathQuestion": "Which contaminant-specific measurements would be essential before evaluating any biological method alongside engineered cleanup?", "sourceTitle": "EPA: Newtown Creek cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0206282", "reviewed": "2026-09-27", "stateCodes": [ "NY" ] }, { "id": "onondaga-lake-ny", "name": "Onondaga Lake and tributary sites", "city": "Syracuse area", "state": "New York", "region": "Northeast", "focus": [ "Water", "Land" ], "statusLabel": "Monitoring & active work", "issue": "Historical industrial and municipal discharges contaminated the lake and nearby sites, including mercury-bearing wastes and other pollutants.", "whyItMatters": "Lake recovery also depends on upland and tributary sources; completed lake-bottom work does not resolve every surrounding contamination problem.", "currentResponse": "Lake-bottom dredging, capping and habitat restoration are complete. Many subsites are monitored, while investigations, design or additional cleanup continue at others.", "mycopathQuestion": "How can watershed-scale planning connect source control, restored habitat and measurable water-quality improvement?", "sourceTitle": "EPA: Onondaga Lake cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0203382", "reviewed": "2026-09-27", "stateCodes": [ "NY" ] }, { "id": "lower-passaic-river-nj", "name": "Lower Passaic River / Diamond Alkali", "city": "Newark and neighboring river communities", "state": "New Jersey", "region": "Northeast", "focus": [ "Water", "Land" ], "statusLabel": "Cleanup preparation", "issue": "The river forms part of the Diamond Alkali Superfund site, where extensive contaminated sediment requires a coordinated, long-term remedy.", "whyItMatters": "Large river cleanups depend on infrastructure for safely handling dredged material as well as the eventual in-river work.", "currentResponse": "EPA announced a proposed September 2026 settlement for upland processing and support facilities. The agreement requires court approval before those commitments take effect.", "mycopathQuestion": "What can major river cleanup planning teach us about responsible waste handling and the real costs of any treatment approach?", "sourceTitle": "EPA: Proposed Lower Passaic River settlement — September 10, 2026", "sourceUrl": "https://www.epa.gov/newsreleases/epa-proposed-settlement-agreement-provides-critical-work-advancing-lower-passaic-river", "reviewed": "2026-09-27", "stateCodes": [ "NJ" ] }, { "id": "housatonic-river-ma", "name": "GE–Pittsfield / Housatonic River", "city": "Pittsfield and downstream communities", "state": "Massachusetts", "region": "Northeast", "focus": [ "Water", "Land" ], "statusLabel": "Cleanup design", "issue": "PCB contamination affects river sediment and floodplain soil, requiring cleanup that also protects ecological functions.", "whyItMatters": "Removing contamination can disturb habitat, making restoration, erosion control and post-cleanup monitoring integral parts of the remedy.", "currentResponse": "In May 2026, EPA opened review of the Reach 5A final cleanup work plan and a separate habitat-restoration plan.", "mycopathQuestion": "How can native vegetation and riverbank design support recovery after regulated sediment and soil remediation?", "sourceTitle": "EPA: Housatonic River Reach 5A work-plan review — May 12, 2026", "sourceUrl": "https://www.epa.gov/newsreleases/important-public-input-periods-general-electric-pittsfield-housatonic-river-site", "reviewed": "2026-09-27", "stateCodes": [ "MA" ] }, { "id": "new-bedford-harbor-ma", "name": "New Bedford Harbor", "city": "New Bedford", "state": "Massachusetts", "region": "Northeast", "focus": [ "Water", "Land" ], "statusLabel": "Monitoring & stewardship", "issue": "Historic electrical manufacturing left PCBs and metals in harbor sediment; PCB accumulation in seafood led to fishing restrictions and advisories.", "whyItMatters": "Major sediment removal does not end the need for seafood guidance, cap maintenance and ecological monitoring.", "currentResponse": "Large-scale dredging was substantially completed in 2020; shoreline restoration finished in 2024. EPA lists continued maintenance, monitoring and remaining facility work for 2026.", "mycopathQuestion": "Which monitoring measures best show whether cleanup benefits persist in habitat and the aquatic food web?", "sourceTitle": "EPA: General information about the New Bedford Harbor cleanup", "sourceUrl": "https://www.epa.gov/new-bedford-harbor/general-information-about-new-bedford-harbor-cleanup", "reviewed": "2026-09-27", "stateCodes": [ "MA" ] }, { "id": "centredale-manor-ri", "name": "Centredale Manor Restoration Project", "city": "North Providence and Johnston", "state": "Rhode Island", "region": "Northeast", "focus": [ "Water", "Land" ], "statusLabel": "Phased cleanup", "issue": "Past chemical production and drum reconditioning contaminated soil, sediment and the Woonasquatucket River with dioxin and other chemicals.", "whyItMatters": "Floodplain and river contamination can move beyond an original industrial property, requiring coordinated work across connected areas.", "currentResponse": "EPA describes a phased remedy involving source-area capping, sediment and floodplain excavation, wetland cover, and long-term monitoring under EPA and Rhode Island oversight.", "mycopathQuestion": "How can habitat-sensitive cleanup plans limit erosion and preserve recovery while contaminated materials are safely managed?", "sourceTitle": "EPA: Centredale Manor cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0101388", "reviewed": "2026-09-27", "stateCodes": [ "RI" ] }, { "id": "raymark-industries-ct", "name": "Raymark Industries", "city": "Stratford", "state": "Connecticut", "region": "Northeast", "focus": [ "Land", "Water", "Air" ], "statusLabel": "Active cleanup", "issue": "Manufacturing waste containing asbestos, lead, PCBs and other contaminants was spread as fill across multiple properties and wetlands.", "whyItMatters": "Historic disposal can create many separate cleanup needs across soil, sediment, wetlands and groundwater.", "currentResponse": "EPA celebrated completion of the former Raybestos Memorial Ballfield cleanup in June 2026 while Shore Road cleanup remained underway; other units have separate remedies.", "mycopathQuestion": "How should research distinguish habitat restoration from hazardous-waste work that requires specialized remediation and containment?", "sourceTitle": "EPA: Raymark cleanup milestone — June 17, 2026", "sourceUrl": "https://www.epa.gov/newsreleases/epa-new-england-celebrates-major-cleanup-milestone-raymark-superfund-site", "reviewed": "2026-09-27", "stateCodes": [ "CT" ] }, { "id": "palmerton-zinc-pile-pa", "name": "Palmerton Zinc Pile", "city": "Palmerton", "state": "Pennsylvania", "region": "Northeast", "focus": [ "Land", "Water" ], "statusLabel": "Investigation & stewardship", "issue": "Historic zinc smelting left a large waste pile and metal-contaminated land requiring remediation and land-use controls.", "whyItMatters": "Revegetation and containment need continued protection, while groundwater, surface-water and ecological questions require their own investigation.", "currentResponse": "EPA oversees ongoing investigation of water and ecological conditions, alongside five-year reviews and controls on groundwater use and soil excavation.", "mycopathQuestion": "How can revegetation stabilize contaminated ground while monitoring confirms that metals remain controlled rather than merely hidden?", "sourceTitle": "EPA: Palmerton Zinc Pile cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0300624", "reviewed": "2026-09-27", "stateCodes": [ "PA" ] }, { "id": "borit-asbestos-pa", "name": "BoRit Asbestos", "city": "Ambler", "state": "Pennsylvania", "region": "Northeast", "focus": [ "Land", "Air", "Water" ], "statusLabel": "Monitoring & stewardship", "issue": "Historic asbestos-product waste required capping and streambank stabilization to prevent release of asbestos-containing material.", "whyItMatters": "Protective covers need inspection and repair after erosion or severe weather. Vegetation is part of containment, not proof that hazardous material disappeared.", "currentResponse": "Cleanup construction is complete. EPA describes ongoing inspections, cap maintenance, land-use controls and environmental sampling to verify the remedy remains protective.", "mycopathQuestion": "What can long-term cover and vegetation maintenance teach us about protecting completed remedies without disturbing hazardous waste?", "sourceTitle": "EPA: BoRit Asbestos cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0301842", "reviewed": "2026-09-27", "stateCodes": [ "PA" ] }, { "id": "lower-darby-creek-pa", "name": "Lower Darby Creek Area", "city": "Darby Township, Folcroft and Philadelphia", "state": "Pennsylvania", "region": "Northeast", "focus": [ "Water", "Land" ], "statusLabel": "Active work & monitoring", "issue": "Clearview and Folcroft landfill wastes contaminated surrounding environmental media; groundwater and aquatic areas remain separate cleanup concerns.", "whyItMatters": "Groundwater migration and contaminated fish tissue need attention even after residential soil cleanup and landfill-cover construction.", "currentResponse": "Residential cleanup is complete and Clearview has a forested evapotranspiration cover. EPA continues groundwater treatment evaluations, Folcroft studies and aquatic-environment investigations.", "mycopathQuestion": "What can this real use of a vegetated landfill cover teach us about measuring natural systems within an engineered remedy?", "sourceTitle": "EPA: Lower Darby Creek Area cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0305521", "reviewed": "2026-09-27", "stateCodes": [ "PA" ] }, { "id": "river-raisin-mi", "name": "River Raisin Area of Concern", "city": "Monroe", "state": "Michigan", "region": "Midwest", "focus": [ "Water", "Land" ], "issue": "Historic industrial discharges left PCBs and other pollutants in sediment near the river's Lake Erie outlet.", "whyItMatters": "Sediment contamination and remaining ecological impairments make recovery monitoring important for fish, wildlife and community use.", "currentResponse": "Major dredging and habitat projects are complete. EPA lists five impairments removed and four remaining; monitoring tracks continued recovery.", "mycopathQuestion": "What can completed sediment cleanup and fish-passage restoration teach us about measuring recovery over time?", "sourceTitle": "EPA: River Raisin Area of Concern", "sourceUrl": "https://www.epa.gov/great-lakes-aocs/river-raisin-aoc", "reviewed": "2026-09-27", "stateCodes": [ "MI" ] }, { "id": "kalamazoo-river-mi", "name": "Allied Paper / Kalamazoo River", "city": "Kalamazoo and Allegan counties", "state": "Michigan", "region": "Midwest", "focus": [ "Water", "Land" ], "issue": "Historic paper-industry wastes contaminated river sediments, banks and floodplains with PCBs across a large river system.", "whyItMatters": "Contaminated sediment can remain a source of exposure for aquatic food webs unless managed and monitored.", "currentResponse": "EPA reports extensive sediment removal, riverbank restoration and landfill capping. Cleanup and planning continue in remaining areas, while completed areas are monitored.", "mycopathQuestion": "How should a research program compare proposed biological approaches with established sediment remedies and untreated controls?", "sourceTitle": "EPA: Allied Paper / Portage Creek / Kalamazoo River cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0502325", "reviewed": "2026-09-27", "stateCodes": [ "MI" ] }, { "id": "saginaw-river-bay-mi", "name": "Saginaw River and Bay", "city": "Saginaw and Bay City", "state": "Michigan", "region": "Midwest", "focus": [ "Water", "Land" ], "issue": "Legacy sediment contaminants combine with nutrient runoff and habitat loss across the river and bay.", "whyItMatters": "Fish-consumption restrictions and degraded habitats show why sediment management and watershed pollution prevention must work together.", "currentResponse": "EPA identifies sediment remediation, pollution control and wetland restoration as priorities. Three of the original twelve impairments have been removed.", "mycopathQuestion": "Where could well-designed root-zone treatment help intercept runoff, and what pollutants would require other remedies?", "sourceTitle": "EPA: Saginaw River and Bay Area of Concern", "sourceUrl": "https://www.epa.gov/great-lakes-aocs/saginaw-river-and-bay-aoc", "reviewed": "2026-09-27", "stateCodes": [ "MI" ] }, { "id": "grand-calumet-in", "name": "Grand Calumet River", "city": "Gary, Hammond and East Chicago", "state": "Indiana", "region": "Midwest", "focus": [ "Water", "Land" ], "issue": "Industrial history left PCBs, PAHs and heavy metals in river sediments, alongside substantial habitat loss.", "whyItMatters": "Sediment management and habitat recovery matter for aquatic food webs and community access to healthier waterways.", "currentResponse": "EPA reports six sediment and two habitat management actions completed; additional dredging, capping and restoration actions remain.", "mycopathQuestion": "How can restoration vegetation complement engineered containment without disturbing contaminated sediments?", "sourceTitle": "EPA: Grand Calumet River Area of Concern", "sourceUrl": "https://www.epa.gov/great-lakes-aocs/grand-calumet-river-aoc", "reviewed": "2026-09-27", "stateCodes": [ "IN" ] }, { "id": "indiana-harbor-in", "name": "Indiana Harbor and Ship Canal", "city": "East Chicago", "state": "Indiana", "region": "Midwest", "focus": [ "Water", "Air", "Land" ], "issue": "Legacy industrial sediments require controlled dredging and disposal; monitoring addresses potential air and water impacts during this work.", "whyItMatters": "Moving contaminated sediment demands safeguards as well as removal, protecting neighboring communities and the connected Lake Michigan system.", "currentResponse": "The USACE project publishes particulate, ambient-air and water-quality monitoring alongside dredging information. This canal is within the broader Grand Calumet Area of Concern.", "mycopathQuestion": "What monitoring would show whether a proposed treatment prevents pollution transfer between sediment, water and air?", "sourceTitle": "USACE / Argonne: Indiana Harbor and Canal Dredging and Disposal Project", "sourceUrl": "https://indianaharbor.evs.anl.gov/", "reviewed": "2026-09-27", "stateCodes": [ "IN" ] }, { "id": "lower-fox-river-wi", "name": "Lower Fox River", "city": "Green Bay to Menasha", "state": "Wisconsin", "region": "Midwest", "focus": [ "Water", "Land" ], "issue": "Historic paper-mill operations contaminated sediment with PCBs along the Lower Fox River.", "whyItMatters": "Completed cleanup still needs stewardship: sediment, water and fish data help verify that benefits persist.", "currentResponse": "Cleanup was completed in 2020 and certified by EPA in 2022. Long-term monitoring and maintenance continue after addressing more than six million cubic yards of contaminated sediment.", "mycopathQuestion": "What can this completed cleanup teach us about long-term sampling, cap maintenance and transparent reporting?", "sourceTitle": "EPA: Fox River PCB cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.Cleanup&id=0507723", "reviewed": "2026-09-27", "stateCodes": [ "WI" ] }, { "id": "milwaukee-estuary-wi", "name": "Milwaukee Estuary", "city": "Milwaukee", "state": "Wisconsin", "region": "Midwest", "focus": [ "Water", "Land" ], "issue": "Historic industrial discharges and watershed runoff contributed PCBs, PAHs and metals to estuary sediments.", "whyItMatters": "Restoration supports aquatic habitat, fish passage and the communities connected to Milwaukee's rivers and harbor.", "currentResponse": "EPA and partners continue sediment remediation and habitat restoration. Completed projects have removed contaminated sediment, restored wetlands and reopened upstream fish passage.", "mycopathQuestion": "How could native planting and runoff management support river recovery after contaminated sediment is addressed?", "sourceTitle": "EPA: Milwaukee Estuary Area of Concern", "sourceUrl": "https://www.epa.gov/great-lakes-aocs/milwaukee-estuary-aoc", "reviewed": "2026-09-27", "stateCodes": [ "WI" ] }, { "id": "st-louis-river-mn-wi", "name": "St. Louis River Estuary", "city": "Duluth and Superior", "state": "Minnesota / Wisconsin", "region": "Midwest", "focus": [ "Water", "Land" ], "issue": "Historic industry contaminated sediments with mercury, dioxins, PCBs and PAHs, while habitat was lost.", "whyItMatters": "Recovery matters for fish-spawning grounds, recreation and places of cultural significance to the Fond du Lac Band.", "currentResponse": "In May 2026, EPA announced all Minnesota-side sediment cleanup projects complete. Across the estuary, substantial habitat restoration has occurred; recovery criteria and monitoring remain important.", "mycopathQuestion": "What can coordinated cleanup, native habitat restoration and long-term stewardship teach a future community research program?", "sourceTitle": "EPA: Completion of St. Louis River cleanup projects in Minnesota, May 2026", "sourceUrl": "https://www.epa.gov/newsreleases/epa-mpca-and-partners-celebrate-completion-st-louis-river-cleanup-projects-minnesota", "reviewed": "2026-09-27", "stateCodes": [ "MN", "WI" ] }, { "id": "waukegan-harbor-il", "name": "Waukegan Harbor", "city": "Waukegan", "state": "Illinois", "region": "Midwest", "focus": [ "Water", "Land" ], "issue": "Historic manufacturing contaminated harbor sediment, especially with PCBs that can accumulate in aquatic food webs.", "whyItMatters": "Maintaining cleanup gains and tracking fish contamination are essential parts of recovery, even after major construction ends.", "currentResponse": "Sediment management actions are complete and five of six impairments have been removed. Fish-consumption restrictions remain; related Superfund work continues nearby.", "mycopathQuestion": "How can habitat monitoring distinguish genuine ecological recovery from simply finishing a construction project?", "sourceTitle": "EPA: Waukegan Harbor Area of Concern", "sourceUrl": "https://www.epa.gov/great-lakes-aocs/waukegan-harbor-aoc", "reviewed": "2026-09-27", "stateCodes": [ "IL" ] }, { "id": "west-lake-landfill-mo", "name": "West Lake Landfill", "city": "Bridgeton", "state": "Missouri", "region": "Midwest", "focus": [ "Land", "Water" ], "issue": "Parts of the landfill contain radiologically impacted material; groundwater is addressed through a separate investigation.", "whyItMatters": "Radioactive material requires specialized containment, excavation and disposal expertise. Biological growth cannot eliminate radioactivity.", "currentResponse": "EPA's September 2026 dashboard reports remedial-design work underway and a separate groundwater investigation. Cleanup planning includes engineered controls.", "mycopathQuestion": "What can this site teach us about recognizing when specialist remediation, rather than a biological method, is required?", "sourceTitle": "EPA: West Lake Landfill progress dashboard, September 2026", "sourceUrl": "https://www.epa.gov/mo/west-lake-landfill-dashboard", "reviewed": "2026-09-27", "stateCodes": [ "MO" ] }, { "id": "big-river-mine-tailings-mo", "name": "Big River Mine Tailings", "city": "Desloge and the Old Lead Belt", "state": "Missouri", "region": "Midwest", "focus": [ "Land", "Water" ], "issue": "Historic lead mining left large waste areas and contaminated residential soils, river sediments and floodplain areas.", "whyItMatters": "Mine-waste erosion can move metals through a watershed. Soil protection and source control help reduce opportunities for contact and transport.", "currentResponse": "Residential soil cleanup and river investigation continue. Stabilized waste areas receive maintenance; EPA is developing actions for high-priority river and floodplain areas.", "mycopathQuestion": "Could approved vegetation help stabilize clean cover and reduce erosion without moving metals into a new exposure pathway?", "sourceTitle": "EPA: Big River Mine Tailings cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0701639", "reviewed": "2026-09-27", "stateCodes": [ "MO" ] }, { "id": "anniston-pcb-al", "name": "Anniston PCB Site", "city": "Anniston and surrounding waterways", "state": "Alabama", "region": "South", "focus": [ "Land", "Water", "Air" ], "issue": "Historic PCB manufacturing contaminated properties and downstream waterways, with several environmental media investigated.", "whyItMatters": "Persistent PCBs require attention to soil contact, food-web pathways and restrictions identified by public-health and environmental agencies.", "currentResponse": "Most contaminated residential properties have been cleaned up. Remaining remedies are being designed or implemented; a creek-and-floodplain cleanup decision was signed in December 2024.", "mycopathQuestion": "How can a research team respect existing cleanup decisions while evaluating contaminant-specific evidence and community priorities?", "sourceTitle": "EPA: Anniston PCB Site cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0400123", "reviewed": "2026-09-27", "stateCodes": [ "AL" ] }, { "id": "tennessee-products-tn", "name": "Tennessee Products / Chattanooga Creek", "city": "Chattanooga", "state": "Tennessee", "region": "South", "focus": [ "Water", "Land" ], "issue": "Historic industrial waste contaminated creek sediment; completed remedies removed sediment and capped part of the channel.", "whyItMatters": "Maintaining protective remedies and following the creek's fish advisory remain important after a site leaves the Superfund list.", "currentResponse": "EPA deleted the site from the National Priorities List in 2019 and anticipates no further cleanup actions. Maintenance and monitoring continue.", "mycopathQuestion": "What can a completed cleanup teach us about long-term stewardship, protective caps and honest reporting of remaining restrictions?", "sourceTitle": "EPA: Tennessee Products cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0403765", "reviewed": "2026-09-27", "stateCodes": [ "TN" ] }, { "id": "uss-lead-in", "name": "USS Lead Site", "city": "East Chicago", "state": "Indiana", "region": "Midwest", "focus": [ "Land", "Water" ], "issue": "Lead and arsenic contamination affected former industrial property and nearby residential areas; groundwater is a separate investigation area.", "whyItMatters": "Protecting neighborhoods requires verified soil remedies, clear communication and continued attention to remaining contamination.", "currentResponse": "EPA's September 2026 update proposes deleting cleaned Zone 1 from the Superfund list. Facility and groundwater investigations are separate ongoing work.", "mycopathQuestion": "How can future restoration planning support safe reuse after certified soil cleanup, without disturbing remaining contamination?", "sourceTitle": "EPA: USS Lead Superfund Site", "sourceUrl": "https://www.epa.gov/uss-lead-superfund-site", "reviewed": "2026-09-27", "stateCodes": [ "IN" ] }, { "id": "san-jacinto-waste-pits-tx", "name": "San Jacinto River Waste Pits", "city": "Channelview / Harris County", "state": "Texas", "region": "South", "focus": [ "Water", "Land" ], "issue": "Former paper-mill waste pits contain dioxins and furans beside, and partly submerged in, the San Jacinto River.", "whyItMatters": "River conditions and persistent waste make containment integrity, controlled removal and monitoring important for protecting the surrounding environment.", "currentResponse": "Southern impoundment construction finished in 2023. Northern cleanup design was conditionally approved in 2025; EPA's 2026 updates describe remedy changes and next steps.", "mycopathQuestion": "What evidence and controls would be required before any proposed biological treatment could be evaluated for persistent industrial waste?", "sourceTitle": "EPA: San Jacinto River Waste Pits site updates", "sourceUrl": "https://www.epa.gov/tx/sjrwp", "reviewed": "2026-09-27", "stateCodes": [ "TX" ] }, { "id": "st-regis-paper-mn", "name": "St. Regis Paper Site", "city": "Cass Lake / Leech Lake Reservation", "state": "Minnesota", "region": "Midwest", "focus": [ "Land", "Water" ], "issue": "Former wood-treatment operations left contamination in soil and groundwater, including areas of the Fox Creek Valley.", "whyItMatters": "Understanding groundwater movement and remaining sources supports protective cleanup planning with affected residents and the Leech Lake Band of Ojibwe.", "currentResponse": "EPA's March 2026 newsletter describes groundwater and soil investigations, coordination with Tribal and state partners, and development of a community advisory group.", "mycopathQuestion": "How should a future research program seek Tribal guidance and evaluate contained treatment questions without interfering with the official cleanup?", "sourceTitle": "EPA: St. Regis Superfund Site newsletter, March 2026", "sourceUrl": "https://semspub.epa.gov/work/05/708227.pdf", "reviewed": "2026-09-27", "stateCodes": [ "MN" ] }, { "id": "palos-verdes-shelf", "name": "Palos Verdes Shelf", "city": "Offshore Palos Verdes Peninsula", "state": "California", "region": "West", "focus": [ "Water" ], "issue": "Historic pesticide manufacturing discharges contaminated offshore sediment. This nearshore cleanup area is distinct from the separate deep-ocean Disposal Site #2 investigation.", "whyItMatters": "EPA identifies contaminated seafood consumption as an exposure concern. Sediment and food-web contamination require sustained attention beyond the original industrial release.", "currentResponse": "EPA describes fish-consumption outreach, multilingual signs, market inspections and partner engagement to reduce exposure while Superfund work continues.", "mycopathQuestion": "What can sediment monitoring and seafood-risk communication teach a future research team about measuring ecological recovery without confusing it with immediate safety?", "sourceTitle": "EPA: Southern California ocean disposal investigation and Palos Verdes Shelf distinction", "sourceUrl": "https://www.epa.gov/marine-protection-permitting/socal-ocean-disposal-site-2-investigation", "reviewed": "2026-09-27", "stateCodes": [ "CA" ] }, { "id": "new-idria-mercury-mine", "name": "New Idria Mercury Mine", "city": "Idria, San Benito County", "state": "California", "region": "West", "focus": [ "Water", "Land" ], "issue": "Historic mercury mining left waste piles and acidic drainage. Flooded underground workings generate water that moves through the mine and into downstream creeks.", "whyItMatters": "Controlling erosion and drainage helps limit movement of mercury and other metals. Mining can leave continuing pollution pathways long after operations end.", "currentResponse": "EPA reports completed drainage diversions and settling measures, with investigations continuing to define contamination and inform longer-term cleanup.", "mycopathQuestion": "How could erosion control and carefully assessed revegetation support an engineered remedy? Mercury cannot be destroyed by fungi or plants.", "sourceTitle": "EPA: New Idria Mercury Mine cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0905346", "reviewed": "2026-09-27", "stateCodes": [ "CA" ] }, { "id": "iron-mountain-mine", "name": "Iron Mountain Mine", "city": "Near Redding", "state": "California", "region": "West", "focus": [ "Water", "Land" ], "issue": "Mining exposed mineral-bearing rock to water and oxygen, producing acidic drainage containing copper, cadmium, zinc and other metals.", "whyItMatters": "Before cleanup, metal-rich drainage severely damaged nearby aquatic life. Maintaining collection and treatment protects connected streams and the Sacramento River ecosystem.", "currentResponse": "EPA lists active drainage collection, reservoir management, pipelines and treatment in 2026, with planning for continued operation after current settlement obligations end.", "mycopathQuestion": "What can long-running treatment teach us about maintenance costs, water monitoring and the limits of nature-based additions to complex mine cleanup?", "sourceTitle": "EPA: Iron Mountain Mine cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0901755", "reviewed": "2026-09-27", "stateCodes": [ "CA" ] }, { "id": "leviathan-mine", "name": "Leviathan Mine", "city": "Near Markleeville, Alpine County", "state": "California", "region": "West", "focus": [ "Water", "Land" ], "issue": "The inactive sulfur mine generates acid mine drainage affecting Leviathan Creek. Historic mining left a continuing water-quality management problem.", "whyItMatters": "Treatment infrastructure and drainage controls need sustained upkeep. A closed mine can continue affecting downstream environments unless pollution pathways remain controlled.", "currentResponse": "California's Water Board maintains pollution-abatement infrastructure and works with EPA and Atlantic Richfield on investigations and development of a final remedy.", "mycopathQuestion": "Could carefully evaluated revegetation reduce erosion alongside required treatment? Any ecological approach would need compatibility with the agency-selected mine-water remedy.", "sourceTitle": "California Lahontan Water Board: Leviathan Mine Project", "sourceUrl": "https://waterboards.ca.gov/lahontan/water_issues/projects/leviathan_project/", "reviewed": "2026-09-27", "stateCodes": [ "CA" ] }, { "id": "montrose-chemical", "name": "Montrose Chemical former factory area", "city": "Los Angeles, Harbor Gateway area", "state": "California", "region": "West", "focus": [ "Land", "Water" ], "issue": "Decades of pesticide manufacturing left contamination on and around the former facility. This entry focuses on the land and groundwater areas, separate from Palos Verdes Shelf.", "whyItMatters": "Source-area contamination can require prolonged treatment and monitoring. Past soil removals do not by themselves complete groundwater cleanup.", "currentResponse": "EPA describes ongoing groundwater treatment, electrical resistance heating, soil-vapor extraction, monitoring and maintenance within the wider Superfund cleanup program.", "mycopathQuestion": "Which organic pollutants might warrant controlled biological-treatment research, and which conditions require established chemical, thermal or hydraulic treatment methods?", "sourceTitle": "EPA: Montrose Chemical Corp. cleanup and reuse summary", "sourceUrl": "https://www.epa.gov/superfund-redevelopment/superfund-sites-reuse-california", "reviewed": "2026-09-27", "stateCodes": [ "CA" ] }, { "id": "portland-harbor", "name": "Portland Harbor", "city": "Portland", "state": "Oregon", "region": "West", "focus": [ "Water", "Land" ], "issue": "Contamination in sediment, surface water and groundwater affects an approximately ten-mile stretch of the Lower Willamette River.", "whyItMatters": "River cleanup must also address incoming pollution from upstream and adjacent land. Otherwise, new contamination can undermine sediment improvements.", "currentResponse": "EPA's September 2025 update reports all areas designated for active in-water remediation in design, alongside Oregon DEQ's continuing work on pollution sources.", "mycopathQuestion": "How can future research combine source control, sediment testing and ecological monitoring, while learning from established dredging, capping and recovery plans?", "sourceTitle": "EPA: Portland Harbor site and remedial-design update, September 2025", "sourceUrl": "https://semspub.epa.gov/work/10/100658653.pdf", "reviewed": "2026-09-27", "stateCodes": [ "OR" ] }, { "id": "lower-duwamish-waterway", "name": "Lower Duwamish Waterway", "city": "Seattle", "state": "Washington", "region": "West", "focus": [ "Water", "Land" ], "issue": "Industrial discharges and urban runoff left contaminated sediment along five miles of the Duwamish, including PCBs, arsenic, carcinogenic PAHs, dioxins and furans.", "whyItMatters": "EPA identifies significant human-health and ecological risks from sediment contamination. Recovery requires coordinated control of sediment and incoming pollution.", "currentResponse": "EPA announced a proposed $668 million settlement in March 2026 for dredging, capping and other cleanup measures, with work expected to take at least ten years.", "mycopathQuestion": "What can coordinated river cleanup teach us about monitoring, community participation and selecting techniques for different pollutants instead of assuming one biological solution?", "sourceTitle": "EPA: Proposed Lower Duwamish Waterway cleanup settlement, March 2026", "sourceUrl": "https://www.epa.gov/newsreleases/epa-reaches-668m-settlement-agreement-continued-cleanup-lower-duwamish-waterway", "reviewed": "2026-09-27", "stateCodes": [ "WA" ] }, { "id": "hanford-site", "name": "Hanford Site", "city": "Near Richland, Benton County", "state": "Washington", "region": "West", "focus": [ "Water", "Land" ], "issue": "Chemical and radiological groundwater contamination at this nuclear-production legacy site requires extensive engineered treatment and monitoring.", "whyItMatters": "The scale and persistence of contaminated groundwater show why cleanup needs long-term stewardship, specialist expertise and clear measurements of progress.", "currentResponse": "DOE operates multiple groundwater pump-and-treat systems. Its July 2026 overview describes ongoing treatment and public access to monitoring data and annual reports.", "mycopathQuestion": "What can transparent long-term monitoring teach us? Hanford is a specialist nuclear-remediation case, not a proposed fungal treatment project; organisms cannot eliminate radioactivity.", "sourceTitle": "U.S. Department of Energy: Hanford groundwater treatment", "sourceUrl": "https://www.hanford.gov/page.cfm/Groundwater", "reviewed": "2026-09-27", "stateCodes": [ "WA" ] }, { "id": "coeur-dalene-basin", "name": "Coeur d'Alene Basin", "city": "Coeur d'Alene River Basin, including Cataldo", "state": "Idaho", "region": "West", "focus": [ "Water", "Land" ], "issue": "Historic mining and dredging spread lead and other metals through river sediments and floodplain areas, including Mission Flats near Cataldo.", "whyItMatters": "Removing contaminated soil creates another responsibility: safely containing it. Long-term protection includes engineered storage, clean covers and monitoring.", "currentResponse": "EPA selected the Dredge Road property for a new lower-basin waste consolidation area in 2025, with design planned for 2026–2027 before construction.", "mycopathQuestion": "How can ecological restoration complement secure waste management without redistributing metals into water or wildlife? Community and Tribal priorities would need to guide any future involvement.", "sourceTitle": "EPA: New waste consolidation location for lower Coeur d'Alene Basin cleanup", "sourceUrl": "https://www.epa.gov/newsreleases/epa-selects-new-site-lower-cda-basin-cleanup-waste", "reviewed": "2026-09-27", "stateCodes": [ "ID" ] }, { "id": "silver-bow-butte", "name": "Silver Bow Creek / Butte Area", "city": "Butte and surrounding watershed", "state": "Montana", "region": "West", "focus": [ "Water", "Land" ], "issue": "Historic mining left tailings along Silver Bow Creek, contaminated soils and polluted water in flooded mine workings, including the Berkeley Pit.", "whyItMatters": "Cleanup involves different pathways across a large watershed. Restored stream sections still need monitoring, while other mine and soil areas require continuing work.", "currentResponse": "EPA and Montana DEQ oversee separate cleanup areas, with stream restoration, soil investigations, water management and ongoing environmental monitoring.", "mycopathQuestion": "How can long-term measurements show whether restored vegetation and stream habitat remain healthy after mine-waste controls are installed?", "sourceTitle": "EPA: Silver Bow Creek / Butte Area current site status", "sourceUrl": "https://www.epa.gov/butte/current-site-status", "reviewed": "2026-09-27", "stateCodes": [ "MT" ] }, { "id": "anaconda-smelter", "name": "Anaconda Smelter", "city": "Anaconda and southern Deer Lodge Valley", "state": "Montana", "region": "West", "focus": [ "Land", "Water" ], "issue": "Historic ore processing and smelting left arsenic, lead and other metals in soil, groundwater and surface water across a large area.", "whyItMatters": "Protecting reclaimed land requires maintaining caps, vegetation and drainage controls. The remaining work should be understood alongside substantial cleanup already completed.", "currentResponse": "EPA reports completed cleanup in several areas and continuing work elsewhere. Reclamation includes capped and revegetated land, wetlands, stream restoration and property cleanup.", "mycopathQuestion": "What can established revegetation and wetland restoration teach us about rebuilding habitat after contamination is contained? Metals remain materials to manage, not substances plants destroy.", "sourceTitle": "EPA: Anaconda Co. Smelter cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0800403", "reviewed": "2026-09-27", "stateCodes": [ "MT" ] }, { "id": "libby-asbestos", "name": "Libby Asbestos site", "city": "Libby, Troy and former mine area", "state": "Montana", "region": "West", "focus": [ "Land", "Air" ], "issue": "Historic vermiculite mining spread amphibole asbestos. Residual contamination is especially relevant around the former mine and surrounding forested land.", "whyItMatters": "Disturbance of contaminated material requires specialized precautions. The 2025 response plan also addresses asbestos in ash during wildfires near the mine.", "currentResponse": "Extensive cleanup has reduced exposure potential in Libby and Troy. Agencies maintain coordination, monitoring and public-information plans for residual hazards.", "mycopathQuestion": "How can clear public information help people follow specialist guidance? This is a lesson in exposure prevention, not a proposed mushroom or plant treatment for asbestos.", "sourceTitle": "Lincoln County and partner agencies: Libby Asbestos Response Plan, 2025", "sourceUrl": "https://semspub.epa.gov/work/08/100018728.pdf", "reviewed": "2026-09-27", "stateCodes": [ "MT" ] }, { "id": "carson-river-mercury", "name": "Carson River Mercury site", "city": "Dayton and Carson River corridor", "state": "Nevada", "region": "West", "focus": [ "Water", "Land" ], "issue": "Mercury used in historic gold and silver processing contaminated former mill sites, floodplain soil and river sediment across multiple counties.", "whyItMatters": "Mercury can move through waterways and accumulate in fish and wildlife. Site-specific consumption advice and soil controls remain important exposure protections.", "currentResponse": "EPA and Nevada manage sampling, soil removal or capping, and long-term response planning. EPA also investigates mercury movement and impacts in the river system.", "mycopathQuestion": "Could erosion-control research help reduce contaminated sediment movement without increasing mercury availability? No fungal or plant method can destroy mercury itself.", "sourceTitle": "EPA: Carson River Mercury site cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0903020", "reviewed": "2026-09-27", "stateCodes": [ "NV" ] }, { "id": "california-gulch", "name": "California Gulch / Leadville", "city": "Leadville and upper Arkansas River area", "state": "Colorado", "region": "West", "focus": [ "Water", "Land" ], "issue": "Historic mining contaminated soils, sediment and water with metals. The cleanup area includes Leadville, former mining lands and an Arkansas River reach.", "whyItMatters": "EPA reports cleanup complete across more than 90 percent of the site. Continued maintenance and treatment protect those gains while remaining work advances.", "currentResponse": "Two treatment plants address metal-contaminated water. Completed remedies are maintained and monitored; the remaining Stray Horse area cleanup is still being implemented.", "mycopathQuestion": "What can successful cleanup and revegetation teach us about measuring sustained recovery, controlling runoff and supporting safe land use after mining?", "sourceTitle": "EPA: California Gulch cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.Cleanup&id=0801478", "reviewed": "2026-09-27", "stateCodes": [ "CO" ] }, { "id": "summitville-mine", "name": "Summitville Mine", "city": "Rio Grande County", "state": "Colorado", "region": "West", "focus": [ "Water", "Land" ], "issue": "Former gold-mining operations contaminated soil and water with metals. Acidic mine water affected Wightman Fork and the Alamosa River.", "whyItMatters": "Completed construction does not end the need for treatment. Capturing mine water and maintaining reclaimed land help prevent renewed downstream damage.", "currentResponse": "Mine wastes were capped and revegetated, and historic heap-leach cyanide was treated. Captured mine water still passes through a treatment plant, with ongoing monitoring.", "mycopathQuestion": "How can revegetation and lower-impact operations complement long-term water treatment? This site illustrates maintenance needs as well as ecological recovery.", "sourceTitle": "EPA: Summitville Mine cleanup activities", "sourceUrl": "https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0801194", "reviewed": "2026-09-27", "stateCodes": [ "CO" ] }, { "id": "tar-creek", "name": "Tar Creek", "city": "Ottawa County", "state": "Oklahoma", "region": "South", "focus": [ "Land" ], "issue": "Historic lead and zinc mining left large amounts of waste, including chat that was also used as fill. Lead contamination affects some residential soils.", "whyItMatters": "Young children are especially sensitive to lead. Preventing contact with contaminated soil is an immediate practical priority alongside the wider site's cleanup.", "currentResponse": "Oklahoma DEQ's April 2026 fact sheet offers voluntary residential sampling and free cleanup where contamination is found, continuing earlier EPA work.", "mycopathQuestion": "How can community outreach connect people to existing cleanup services? Future vegetation research would have to support, never substitute for, required lead-soil remediation.", "sourceTitle": "Oklahoma DEQ: Tar Creek residential yard cleanup, April 2026", "sourceUrl": "https://oklahoma.gov/content/dam/ok/en/deq/documents/land-division/Tar%20Creek%20Fact%20Sheet%204-2026.pdf", "reviewed": "2026-09-27", "stateCodes": [ "OK" ] }, { "id": "navajo-abandoned-uranium-mines", "name": "Navajo Nation abandoned uranium mines", "city": "Navajo Nation and nearby mine areas (regional scope)", "state": "Arizona / New Mexico / Utah", "region": "West", "focus": [ "Land", "Water", "Air" ], "issue": "Hundreds of abandoned uranium mines form a regional legacy of chemical and radiological contamination, including affected structures and some water sources.", "whyItMatters": "Mine waste, radioactive particles and contaminated water can create exposure pathways. Conditions differ by location; this entry does not characterize all Navajo Nation land or water.", "currentResponse": "EPA and Navajo Nation partners conduct mine assessments, priority cleanups and community engagement. Settlement-funded work covers only part of the regional mine inventory.", "mycopathQuestion": "How can research respect Tribal leadership and support transparent information? Uranium cleanup requires specialist controls; fungi cannot remove radioactivity or replace approved remedies.", "sourceTitle": "EPA: Navajo Nation abandoned uranium mines cleanup", "sourceUrl": "https://www.epa.gov/navajo-nation-uranium-cleanup/aum-cleanup", "reviewed": "2026-09-27", "stateCodes": [ "AZ", "NM", "UT" ] } ]