{
  "license": "CC BY-NC 4.0",
  "license_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "attribution": "Data: Data Center Record, datacenterrecord.org, CC BY-NC 4.0. Link to the specific record page where possible.",
  "source": "https://datacenterrecord.org/states/il",
  "retrieved_at": "2026-10-27T01:36:16.558Z",
  "count": 48,
  "projects": [
    {
      "slug": "aligned-data-centers-northlake-il",
      "name": "Aligned Chicago Northlake (ORD-01 / ORD-02)",
      "summary": "Aligned Data Centers lists 2 data centers at Northlake, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Northlake",
      "county": "Cook County",
      "status": "operational",
      "developer": "Aligned Data Centers",
      "capacity_mw": null,
      "latitude": 41.913532,
      "longitude": -87.917173,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110071064118",
      "location_verified_at": "2026-10-04",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110071064118",
      "location_last_verified": "2026-10-04",
      "site_address": "505 Northwest Ave, Northlake, IL 60164",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110071064118",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://aligneddc.com/chicago-data-centers/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/aligned-data-centers-northlake-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Aligned Energy",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110071064118",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        },
        {
          "title": "Aligned Data Centers: Data center locations",
          "url": "https://aligneddc.com/locations/",
          "publisher": "Aligned Data Centers",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Aligned Data Centers: Aligned ORD-01",
          "url": "https://aligneddc.com/chicago-data-centers/",
          "publisher": "Aligned Data Centers",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Aligned Data Centers lists Aligned ORD 01, Aligned ORD 02 at Northlake, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://aligneddc.com/chicago-data-centers/",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "aligned-ord-03-elk-grove-village-il",
      "name": "Aligned Chicago Elk Grove Village (ORD-03)",
      "summary": "Aligned Data Centers lists a data center at Elk Grove Village, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "Aligned Data Centers",
      "capacity_mw": null,
      "latitude": 42.006366,
      "longitude": -87.992805,
      "location_precision": "address",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110071813295",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110071813295",
      "location_last_verified": "2026-09-14",
      "site_address": "50 Northwest Point Blvd, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110071813295",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://aligneddc.com/chicago-data-centers/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/aligned-ord-03-elk-grove-village-il",
      "sources": [
        {
          "title": "Aligned Data Centers: Aligned ORD-03",
          "url": "https://aligneddc.com/chicago-data-centers/",
          "publisher": "Aligned Data Centers",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Aligned Data Centers: Data center locations",
          "url": "https://aligneddc.com/locations/",
          "publisher": "Aligned Data Centers",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "EPA ECHO detailed facility report: Aligned Data Center (egv) Propco LLC",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110071813295",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Aligned Data Centers lists Aligned ORD 03 at Elk Grove Village, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://aligneddc.com/chicago-data-centers/",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "allstate-data-center-rochelle-il",
      "name": "Allstate Data Center",
      "summary": "The EPA's facility registry lists Allstate Data Center at 1425 S Dement RD, Rochelle, IL 61068 in Rochelle, Illinois, with an air permit.",
      "state": "IL",
      "city": "Rochelle",
      "county": "Ogle County",
      "status": "not_verified",
      "developer": "Allstate Insurance Company",
      "capacity_mw": null,
      "latitude": 41.943852,
      "longitude": -89.033127,
      "location_precision": "permit_point",
      "location_source": "EPA ECHO facility record 110038132589: the registry placed its point by interpolation photo, accurate to 5 m",
      "location_verified_at": "2026-10-03",
      "coordinate_source": "epa frs point",
      "location_last_verified": "2026-10-03",
      "site_address": "1425 S Dement RD, Rochelle, IL 61068",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110038132589",
      "published": "2026-10-03",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": null,
      "buildings_basis": null,
      "buildings_source_url": null,
      "buildings_verified_at": null,
      "record_url": "https://datacenterrecord.org/projects/allstate-data-center-rochelle-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Allstate Data Center",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110038132589",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": []
    },
    {
      "slug": "allstate-data-center-rochelle-il-2",
      "name": "Allstate Data Center-rochelle",
      "summary": "The EPA's facility registry lists Allstate Data Center rochelle at Dement RD N Of Il RT 38, Rochelle, IL 61068 in Rochelle, Illinois, with a water permit.",
      "state": "IL",
      "city": "Rochelle",
      "county": "Ogle County",
      "status": "not_verified",
      "developer": "Allstate Insurance Company",
      "capacity_mw": null,
      "latitude": 41.9198,
      "longitude": -89.0623,
      "location_precision": "address",
      "location_source": "U.S. Census Bureau 2020 Gazetteer, the internal point of Rochelle, public domain, placed at city level; the EPA facility record gives no site point (the registry does not say how its point was placed)",
      "location_verified_at": "2026-10-20",
      "coordinate_source": "census gazetteer place point",
      "location_last_verified": "2026-10-20",
      "site_address": "Dement RD N Of Il RT 38, Rochelle, IL 61068",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110033639212",
      "published": "2026-10-20",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": null,
      "buildings_basis": null,
      "buildings_source_url": null,
      "buildings_verified_at": null,
      "record_url": "https://datacenterrecord.org/projects/allstate-data-center-rochelle-il-2",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Allstate Data Center rochelle",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110033639212",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": []
    },
    {
      "slug": "centersquare-chicago-data-center-il",
      "name": "Centersquare Chicago (ORD1 Cermak)",
      "summary": "Centersquare lists a data center at Chicago, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Chicago",
      "county": "Cook County",
      "status": "operational",
      "developer": "Centersquare",
      "capacity_mw": null,
      "latitude": 41.85299,
      "longitude": -87.61901,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110071955713",
      "location_verified_at": "2026-10-04",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110071955713",
      "location_last_verified": "2026-10-04",
      "site_address": "350 E Cermak Rd, Chicago, IL 60616",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110071955713",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.csquare.com/data-centers",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/centersquare-chicago-data-center-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Centersquare ORD1",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110071955713",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        },
        {
          "title": "Centersquare: Data center markets",
          "url": "https://www.csquare.com/data-centers",
          "publisher": "Centersquare",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Centersquare lists Centersquare Chicago data center at Chicago, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.csquare.com/data-centers",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "centersquare-lisle-data-center-il",
      "name": "Centersquare Chicago Lisle (ORD4)",
      "summary": "Vultr launched an AMD GPU supercomputer cluster at Centersquare's Lisle, Illinois data center, which offers 15 MW of utility power across 194,057 square feet.",
      "state": "IL",
      "city": "Lisle",
      "county": "DuPage County",
      "status": "operational",
      "developer": "Centersquare",
      "capacity_mw": 15,
      "latitude": 41.80087,
      "longitude": -88.09638,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110071955712",
      "location_verified_at": "2026-10-06",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110071955712",
      "location_last_verified": "2026-10-06",
      "site_address": "4513 Western Ave, Lisle, IL 60532",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110071955712",
      "published": "2026-09-28",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.csquare.com/data-centers",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/centersquare-lisle-data-center-il",
      "sources": [
        {
          "title": "Centersquare: Chicago (ORD4 Lisle) Data Center Specification",
          "url": "https://www.csquare.com/data-centers",
          "publisher": "Centersquare",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Vultr launches AMD GPU supercomputer cluster in Chicago - Data Center Dynamics",
          "url": "https://www.datacenterdynamics.com/en/news/vultr-launches-amd-gpu-supercomputer-cluster-in-chicago/",
          "publisher": "Data Center Dynamics",
          "date": "2024-12-13",
          "source_tier": 1
        },
        {
          "title": "EPA ECHO detailed facility report: Centersquare ORD4",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110071955712",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2024-12-13",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Vultr launched an AMD GPU supercomputer cluster at Centersquare's Lisle, Illinois data center, which offers 15 MW of utility power across 194,057 square feet.",
          "source_url": "https://www.datacenterdynamics.com/en/news/vultr-launches-amd-gpu-supercomputer-cluster-in-chicago/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "chicago-quantum-park-il",
      "name": "Illinois Quantum and Microelectronics Park (South Works)",
      "summary": "Locals rallied against a Chicago quantum park development and the company committed to not including a data center.",
      "state": "IL",
      "city": "Chicago",
      "county": "Cook County",
      "status": "under_construction",
      "developer": "PsiQuantum / Related Midwest",
      "capacity_mw": null,
      "latitude": 41.7412,
      "longitude": -87.5425,
      "location_precision": "parcel",
      "location_source": "https://www.chicago.gov/city/en/depts/dcd/supp_info/chicago-plan-commission.html",
      "location_verified_at": "2026-09-16",
      "coordinate_source": "Chicago Plan Commission Planned Development approval (US Steel South Works)",
      "location_last_verified": "2026-09-16",
      "site_address": "8080 S DuSable Lake Shore Dr, Chicago, IL 60617",
      "site_address_source_url": "https://www.chicago.gov/city/en/depts/dcd/supp_info/chicago-plan-commission.html",
      "published": "2026-09-04",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "permit",
      "buildings_source_url": "https://www.chicago.gov/city/en/depts/dcd/supp_info/chicago-plan-commission.html",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/chicago-quantum-park-il",
      "sources": [
        {
          "title": "Chicago Plan Commission: Planned Development Approval for Illinois Quantum and Microelectronics Park (South Works)",
          "url": "https://www.chicago.gov/city/en/depts/dcd/supp_info/chicago-plan-commission.html",
          "publisher": "City of Chicago",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Locals rally against Chicago quantum park; company commits to no data center - thecentersquare.com",
          "url": "https://www.thecentersquare.com/illinois/article_2a9fbd6d-32c8-460c-adda-0edc13019351.html",
          "publisher": "thecentersquare.com",
          "date": "2026-08-17",
          "source_tier": 4
        },
        {
          "title": "Illinois Governor JB Pritzker moves to pause new agreements for data center tax incentives - ABC7 Chicago",
          "url": "https://abc7chicago.com/post/illinois-governor-jb-pritzker-moves-pause-new-agreements-data-center-tax-incentives/19239185/",
          "publisher": "ABC7 Chicago",
          "date": "2026-06-05",
          "source_tier": 4
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "proposed",
          "effective_at": "2026-08-17",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Locals rallied against a Chicago quantum park development and the company committed to not including a data center.",
          "source_url": "https://www.chicago.gov/city/en/depts/dcd/supp_info/chicago-plan-commission.html",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "clean-cloud-energy-mahomet-data-center-il",
      "name": "Clean Cloud Energy Mahomet Data Center Proposal",
      "summary": "Clean Cloud Energy Mahomet data center",
      "state": "IL",
      "city": "Mahomet",
      "county": "Champaign County",
      "status": "proposed",
      "developer": "Clean Cloud Energy",
      "capacity_mw": null,
      "latitude": 40.1985,
      "longitude": -88.3682,
      "location_precision": "parcel",
      "location_source": "https://www.mahomet-il.gov/",
      "location_verified_at": null,
      "coordinate_source": "Village of Mahomet pre-annexation development agreement draft record",
      "location_last_verified": null,
      "site_address": "Prairieview Rd and Interstate 74, Mahomet, IL 61853",
      "site_address_source_url": "https://www.mahomet-il.gov/",
      "published": "2026-10-01",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": "https://mahometdaily.com/mahomets-preliminary-data-center-talks-10-months-ndas-and-a-17-million-draft-deal-emails-included/",
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "zoning application",
      "buildings_source_url": "https://www.mahomet-il.gov/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/clean-cloud-energy-mahomet-data-center-il",
      "sources": [
        {
          "title": "Village of Mahomet Board of Trustees: Pre-Annexation Development Agreement Draft Record",
          "url": "https://www.mahomet-il.gov/",
          "publisher": "Village of Mahomet",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Mahomet’s ‘preliminary’ data center talks: 10 months, NDAs and a $17 million draft deal (Emails Included) - Mahomet Daily",
          "url": "https://mahometdaily.com/mahomets-preliminary-data-center-talks-10-months-ndas-and-a-17-million-draft-deal-emails-included/",
          "publisher": "Mahomet Daily",
          "date": "2026-09-28",
          "source_tier": 4
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "proposed",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://www.mahomet-il.gov/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "compass-hoffman-estates-campus-il",
      "name": "Compass Datacenters Hoffman Estates Campus (ORD1)",
      "summary": "Compass Datacenters lists a data center at Hoffman Estates, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Hoffman Estates",
      "county": "Cook County",
      "status": "operational",
      "developer": "Compass Datacenters",
      "capacity_mw": null,
      "latitude": 42.0774,
      "longitude": -88.2167,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110071849148",
      "location_verified_at": "2026-10-04",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110071849148",
      "location_last_verified": "2026-10-04",
      "site_address": "5500 Trillium Blvd, Hoffman Estates, IL 60192",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110071849148",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 5,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.compassdatacenters.com/data-center-markets/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/compass-hoffman-estates-campus-il",
      "sources": [
        {
          "title": "Compass Datacenters: Data center markets",
          "url": "https://www.compassdatacenters.com/data-center-markets/",
          "publisher": "Compass Datacenters",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "EPA ECHO detailed facility report: Compass Datacenters Ord I",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110071849148",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Compass Datacenters lists Compass Hoffman Estates campus at Hoffman Estates, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.compassdatacenters.com/data-center-markets/",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "coresite-coresite-chicago-ch2-chicago-il",
      "name": "CoreSite Chicago Campus (CH1 / CH2)",
      "summary": "CoreSite lists CoreSite - Chicago (CH2) at 1432 S. Clinton St, Chicago, IL on its interconnection and facility directory.",
      "state": "IL",
      "city": "Chicago",
      "county": "Cook County",
      "status": "operational",
      "developer": "CoreSite",
      "capacity_mw": null,
      "latitude": 41.86255,
      "longitude": -87.640966,
      "location_precision": "address",
      "location_source": "https://www.coresite.com/data-centers/locations/chicago",
      "location_verified_at": null,
      "coordinate_source": "CoreSite Chicago CH2 (1432 S Clinton St) specification",
      "location_last_verified": null,
      "site_address": "1432 S Clinton St, Chicago, IL 60607",
      "site_address_source_url": "https://www.coresite.com/data-centers/locations/chicago",
      "published": "2026-10-21",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.coresite.com/data-centers/locations/chicago",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/coresite-coresite-chicago-ch2-chicago-il",
      "sources": [
        {
          "title": "CoreSite: Chicago (CH1 / CH2) Data Center Campus Specification",
          "url": "https://www.coresite.com/data-centers/locations/chicago",
          "publisher": "CoreSite",
          "date": null,
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://www.coresite.com/data-centers/locations/chicago",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "cyrusone-aurora-chi1-chi3-il",
      "name": "CyrusOne Aurora Campus (CHI1 / CHI2 / CHI3)",
      "summary": "CyrusOne lists a data center at Aurora, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Aurora",
      "county": "DuPage County",
      "status": "operational",
      "developer": "CyrusOne",
      "capacity_mw": null,
      "latitude": 41.796754,
      "longitude": -88.24276,
      "location_precision": "address",
      "location_source": "https://www.cyrusone.com/data-centers/north-america/aurora-il",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "CyrusOne Aurora (2905 Diehl Rd) campus specification",
      "location_last_verified": "2026-09-14",
      "site_address": "2905 Diehl Rd, Aurora, IL 60502",
      "site_address_source_url": "https://www.cyrusone.com/data-centers/north-america/aurora-il",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 3,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.cyrusone.com/data-centers/north-america/aurora-il",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/cyrusone-aurora-chi1-chi3-il",
      "sources": [
        {
          "title": "CyrusOne: Data centers",
          "url": "https://www.cyrusone.com/data-centers",
          "publisher": "CyrusOne",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Gov. Pritzker Celebrates New CyrusOne Data Center Groundbreaking - RiverBender.com",
          "url": "https://www.riverbender.com/news/details/gov-pritzker-celebrates-new-cyrusone-data-center-groundbreaking-76214.cfm",
          "publisher": "RiverBender.com",
          "date": "2024-10-02",
          "source_tier": 1
        },
        {
          "title": "CyrusOne receives rezoning approval for data center campus outside Chicago, Illinois - Data Center Dynamics",
          "url": "https://www.datacenterdynamics.com/en/news/cyrusone-receives-rezoning-approval-for-data-center-campus-outside-chicago-illinois/",
          "publisher": "Data Center Dynamics",
          "date": "2024-06-26",
          "source_tier": 1
        },
        {
          "title": "CyrusOne Plans Campus With 2 Data Centers, 3 Towers Near Chicago - bisnow.com",
          "url": "https://www.bisnow.com/news/national/data-center/cyrusone-plans-campus-with-two-data-centers-three-towers-near-chicago-124530",
          "publisher": "bisnow.com",
          "date": "2024-06-03",
          "source_tier": 1
        },
        {
          "title": "CyrusOne Kicks Off Chicago Data Center Campus - CommercialSearch",
          "url": "https://www.commercialsearch.com/news/cyrusone-kicks-off-chicago-data-center-campus/",
          "publisher": "CommercialSearch",
          "date": "2024-10-04",
          "source_tier": 1
        },
        {
          "title": "CyrusOne Breaks Ground on New Data Center in Aurora - citybiz",
          "url": "https://www.citybiz.co/article/608178/cyrusone-breaks-ground-on-new-data-center-in-aurora/",
          "publisher": "citybiz",
          "date": "2024-10-02",
          "source_tier": 1
        },
        {
          "title": "CyrusOne files for nine-building data center campus outside Chicago, Illinois - Data Center Dynamics",
          "url": "https://www.datacenterdynamics.com/en/news/cyrusone-files-for-nine-building-data-center-campus-outside-chicago-illinois/",
          "publisher": "Data Center Dynamics",
          "date": "2024-06-10",
          "source_tier": 1
        },
        {
          "title": "CyrusOne breaks ground on new data center campus in Aurora - WSPYnews.com",
          "url": "https://www.wspynews.com/news/local/cyrusone-breaks-ground-on-new-data-center-campus-in-aurora/article_e069d62a-818d-11ef-8566-9b3e61c09dab.html",
          "publisher": "WSPYnews.com",
          "date": "2024-10-03",
          "source_tier": 1
        },
        {
          "title": "CyrusOne breaks ground on 40MW Illinois data center campus - Data Center Dynamics",
          "url": "https://www.datacenterdynamics.com/en/news/cyrusone-breaks-ground-on-40mw-illinois-data-center-campus/",
          "publisher": "Data Center Dynamics",
          "date": "2024-10-04",
          "source_tier": 1
        },
        {
          "title": "Holmes celebrates new CyrusOne data center in Aurora - Illinois Senate Democratic Caucus",
          "url": "https://www.illinoissenatedemocrats.com/caucus-news/51-senator-linda-holmes-news/5930-holmes-celebrates-new-cyrusone-data-center-in-aurora",
          "publisher": "Illinois Senate Democratic Caucus",
          "date": "2024-10-04",
          "source_tier": 1
        },
        {
          "title": "Emergency repair work happening Thursday at CyrusOne data center in Aurora after weather delays - chicagotribune.com",
          "url": "https://www.chicagotribune.com/2025/08/13/aurora-cyrusone-data-center-repair-update/",
          "publisher": "chicagotribune.com",
          "date": "2025-08-13",
          "source_tier": 1
        },
        {
          "title": "CyrusOne: CyrusOne Aurora CHI1-CHI3",
          "url": "https://www.cyrusone.com/data-centers/north-america/aurora-il",
          "publisher": "CyrusOne",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "CyrusOne prepares for $350 million Aurora data center campus - Chicago Construction News",
          "url": "https://www.chicagoconstructionnews.com/cyrusone-prepares-for-350-million-aurora-data-center-campus/",
          "publisher": "Chicago Construction News",
          "date": "2024-10-08",
          "source_tier": 1
        },
        {
          "title": "Aurora to negotiate with data center company on expansion plan - Chicago Tribune",
          "url": "https://www.chicagotribune.com/2024/02/15/aurora-to-negotiate-with-data-center-company-on-expansion-plan/",
          "publisher": "Chicago Tribune",
          "date": "2024-02-15",
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "CyrusOne lists CyrusOne Aurora CHI1 CHI3 at Aurora, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.cyrusone.com/data-centers/north-america/aurora-il",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "cyrusone-inc-cyrusone-chicago-lombard-lombard-il",
      "name": "CyrusOne Chicago Lombard",
      "summary": "CyrusOne Inc. lists CyrusOne Chicago (Lombard) at 1850 Springer Drive, Lombard, IL on its interconnection and facility directory.",
      "state": "IL",
      "city": "Lombard",
      "county": "DuPage County",
      "status": "operational",
      "developer": "CyrusOne",
      "capacity_mw": null,
      "latitude": 41.849175,
      "longitude": -88.029567,
      "location_precision": "address",
      "location_source": "https://www.cyrusone.com/data-centers/north-america/lombard-il",
      "location_verified_at": null,
      "coordinate_source": "CyrusOne Chicago Lombard (1850 Springer Dr) specification",
      "location_last_verified": null,
      "site_address": "1850 Springer Dr, Lombard, IL 60148",
      "site_address_source_url": "https://www.cyrusone.com/data-centers/north-america/lombard-il",
      "published": "2026-10-21",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.cyrusone.com/data-centers/north-america/lombard-il",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/cyrusone-inc-cyrusone-chicago-lombard-lombard-il",
      "sources": [
        {
          "title": "CyrusOne: Chicago - Lombard Data Center Specification",
          "url": "https://www.cyrusone.com/data-centers/north-america/lombard-il",
          "publisher": "CyrusOne",
          "date": null,
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://www.cyrusone.com/data-centers/north-america/lombard-il",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "databank-chicago-data-center-il",
      "name": "DataBank Chicago Campus (ORD1 / ORD2 / ORD3 / ORD4)",
      "summary": "DataBank lists a data center at Chicago, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Chicago",
      "county": "Cook County",
      "status": "operational",
      "developer": "DataBank",
      "capacity_mw": null,
      "latitude": 41.880436,
      "longitude": -87.639611,
      "location_precision": "address",
      "location_source": "https://www.databank.com/data-centers/chicago/",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "DataBank Chicago (ORD1 / ORD2 / ORD3 / ORD4) campus specification",
      "location_last_verified": "2026-09-14",
      "site_address": "111 N Canal St, Chicago, IL 60606",
      "site_address_source_url": "https://www.databank.com/data-centers/chicago/",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 4,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.databank.com/data-centers/chicago/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/databank-chicago-data-center-il",
      "sources": [
        {
          "title": "DataBank: Data centers",
          "url": "https://www.databank.com/data-centers/",
          "publisher": "DataBank",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "DataBank lists DataBank Chicago data center at Chicago, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.databank.com/data-centers/",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "decatur-data-center-il",
      "name": "Decatur Brush College Road Data Center Proposal",
      "summary": "Residents of Decatur raised concerns about a data center project at a town hall meeting.",
      "state": "IL",
      "city": "Decatur",
      "county": "Macon County",
      "status": "proposed",
      "developer": "ADM / Brush College Industrial Developer",
      "capacity_mw": null,
      "latitude": 39.8824,
      "longitude": -88.8815,
      "location_precision": "parcel",
      "location_source": "https://www.decaturil.gov/",
      "location_verified_at": "2026-09-16",
      "coordinate_source": "City of Decatur and Macon County Northeast Industrial Corridor parcel record",
      "location_last_verified": "2026-09-16",
      "site_address": "4200 E Brush College Rd, Decatur, IL 62521",
      "site_address_source_url": "https://www.decaturil.gov/",
      "published": "2026-09-04",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "zoning application",
      "buildings_source_url": "https://www.decaturil.gov/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/decatur-data-center-il",
      "sources": [
        {
          "title": "City of Decatur Planning and Development: Brush College Road Industrial Corridor Zoning Record",
          "url": "https://www.decaturil.gov/",
          "publisher": "City of Decatur",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Decatur data center protest and Narcan training Monday, new Uniting Pride caretaker support group starting: Central Illinois 8-30-26",
          "url": "https://main-stream.org/decatur-data-center-protest-and-narcan-training-monday-new-uniting-pride-caretaker-support-group-starting-central-illinois-8-30-26/",
          "publisher": "main-stream.org",
          "date": "2026-09-03",
          "source_tier": 4
        },
        {
          "title": "Decatur residents raise concerns at data center town hall - wandtv.com",
          "url": "https://www.wandtv.com/news/illinois/decatur-residents-raise-concerns-at-data-center-town-hall/article_7420cb8a-5c67-48e2-977b-90a2c536a24e.html",
          "publisher": "wandtv.com",
          "date": "2026-07-30",
          "source_tier": 4
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "proposed",
          "effective_at": "2026-07-30",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Residents of Decatur raised concerns about a data center project at a town hall meeting.",
          "source_url": "https://www.decaturil.gov/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "digital-data-center-glendale-heights-il",
      "name": "Digital Glendale Heights Data Center",
      "summary": "The EPA's facility registry lists Digital Data Center at 188 Internationale BLVD, Glendale Heights, IL 60139 in Glendale Heights, Illinois, with a hazardous waste record.",
      "state": "IL",
      "city": "Glendale Heights",
      "county": "DuPage County",
      "status": "operational",
      "developer": "Digital Realty",
      "capacity_mw": null,
      "latitude": 41.925834,
      "longitude": -88.085153,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110017620680",
      "location_verified_at": "2026-10-20",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110017620680",
      "location_last_verified": "2026-10-20",
      "site_address": "188 Internationale Blvd, Glendale Heights, IL 60139",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110017620680",
      "published": "2026-10-20",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "permit",
      "buildings_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110017620680",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/digital-data-center-glendale-heights-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Digital Data Center",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110017620680",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://echo.epa.gov/detailed-facility-report?fid=110017620680",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "digital-realty-chicago-il",
      "name": "Digital Realty 350 East Cermak (ORD10 / ORD11)",
      "summary": "Digital Realty lists 2 data centers at Chicago, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Chicago",
      "county": "Cook County",
      "status": "operational",
      "developer": "Digital Realty",
      "capacity_mw": null,
      "latitude": 41.85299,
      "longitude": -87.61901,
      "location_precision": "address",
      "location_source": "https://www.digitalrealty.com/data-centers/americas/chicago/ord10",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "Digital Realty 350 E Cermak Rd (ORD10 / ORD11) specification",
      "location_last_verified": "2026-09-14",
      "site_address": "350 E Cermak Rd, Chicago, IL 60616",
      "site_address_source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord10",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord10",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/digital-realty-chicago-il",
      "sources": [
        {
          "title": "Digital Realty: Americas data centers",
          "url": "https://www.digitalrealty.com/data-centers/americas",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty: Digital Realty ORD11",
          "url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord11",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty: Digital Realty ORD10",
          "url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord10",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty Trust Reclaims Chicago Space - DataCenterKnowledge",
          "url": "https://www.datacenterknowledge.com/next-gen-data-centers/digital-realty-trust-reclaims-chicago-space",
          "publisher": "DataCenterKnowledge",
          "date": "2024-06-01",
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Digital Realty lists Digital Realty ORD11, Digital Realty ORD10 at Chicago, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord11",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "digital-realty-elk-grove-village-il",
      "name": "Digital Realty Elk Grove Village Campus (CH1 / CH2 / CH3)",
      "summary": "Digital Realty lists 3 data centers at Elk Grove Village, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "Digital Realty",
      "capacity_mw": null,
      "latitude": 41.994269,
      "longitude": -87.962053,
      "location_precision": "address",
      "location_source": "https://www.digitalrealty.com/data-centers/americas/chicago/ch1",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "Digital Realty Elk Grove Village (2200 Busse Rd) campus specification",
      "location_last_verified": "2026-09-14",
      "site_address": "2200 Busse Rd, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ch1",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 3,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ch1",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/digital-realty-elk-grove-village-il",
      "sources": [
        {
          "title": "Digital Realty: Americas data centers",
          "url": "https://www.digitalrealty.com/data-centers/americas",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty: Digital Realty CH1",
          "url": "https://www.digitalrealty.com/data-centers/americas/chicago/ch1",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty: Digital Realty CH2",
          "url": "https://www.digitalrealty.com/data-centers/americas/chicago/ch2",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty: Digital Realty Chicago",
          "url": "https://www.digitalrealty.com/data-centers/americas/chicago",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Digital Realty lists Digital Realty CH1, Digital Realty CH2, Digital Realty Chicago at Elk Grove Village, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ch1",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "digital-realty-franklin-park-il",
      "name": "Digital Realty Franklin Park Campus (ORD12 / ORD13 / ORD14)",
      "summary": "Digital Realty lists 3 data centers at Franklin Park, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Franklin Park",
      "county": "Cook County",
      "status": "operational",
      "developer": "Digital Realty",
      "capacity_mw": null,
      "latitude": 41.927658,
      "longitude": -87.859333,
      "location_precision": "address",
      "location_source": "https://www.digitalrealty.com/data-centers/americas/chicago/ord12",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "Digital Realty Franklin Park (9355 W Grand Ave) campus specification",
      "location_last_verified": "2026-09-14",
      "site_address": "9355 W Grand Ave, Franklin Park, IL 60131",
      "site_address_source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord12",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 3,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord12",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/digital-realty-franklin-park-il",
      "sources": [
        {
          "title": "Digital Realty: Americas data centers",
          "url": "https://www.digitalrealty.com/data-centers/americas",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty: Digital Realty ORD12",
          "url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord12",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty: Digital Realty ORD13",
          "url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord13",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty: Digital Realty ORD14",
          "url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord14",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Digital Realty lists Digital Realty ORD12, Digital Realty ORD13, Digital Realty ORD14 at Franklin Park, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord12",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "digital-realty-ord23-northlake-il",
      "name": "Digital Realty Northlake (ORD23)",
      "summary": "Digital Realty lists a data center at Northlake, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Northlake",
      "county": "Cook County",
      "status": "operational",
      "developer": "Digital Realty",
      "capacity_mw": null,
      "latitude": 41.920029,
      "longitude": -87.912164,
      "location_precision": "address",
      "location_source": "https://www.digitalrealty.com/data-centers/americas/chicago/ord23",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "Digital Realty ORD23 Northlake specification",
      "location_last_verified": "2026-09-14",
      "site_address": "505 N Railroad Ave, Northlake, IL 60164",
      "site_address_source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord23",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord23",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/digital-realty-ord23-northlake-il",
      "sources": [
        {
          "title": "Digital Realty: Digital Realty ORD23",
          "url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord23",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Digital Realty: Americas data centers",
          "url": "https://www.digitalrealty.com/data-centers/americas",
          "publisher": "Digital Realty",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Digital Realty lists Digital Realty ORD23 at Northlake, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.digitalrealty.com/data-centers/americas/chicago/ord23",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "dipper-ventures-llc-ch3-data-center-elk-grove-village-il",
      "name": "CloudHQ / Dipper Ventures CH3 Elk Grove Village Data Center",
      "summary": "The EPA's facility registry lists Dipper Ventures LLC CH3 Data Center at 1400 Devon Ave, Elk Grove Village, IL 60007 in Elk Grove Village, Illinois, with an air permit.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "CloudHQ / Dipper Ventures LLC",
      "capacity_mw": null,
      "latitude": 41.993947,
      "longitude": -87.964693,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110070005143",
      "location_verified_at": "2026-10-20",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110070005143",
      "location_last_verified": "2026-10-20",
      "site_address": "1400 Devon Ave, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070005143",
      "published": "2026-10-20",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070005143",
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "permit",
      "buildings_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070005143",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/dipper-ventures-llc-ch3-data-center-elk-grove-village-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Dipper Ventures LLC CH3 Data Center",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110070005143",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070005143",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "edgeconnex-inc-edgeconnex-chicago-edcchi02-elk-grove-village-il",
      "name": "EdgeConneX Chicago Campus (CHI01 / CHI02)",
      "summary": "EdgeConneX Inc. lists EdgeConneX Chicago (EDCCHI02) at 2021 Lunt Avenue, Elk Grove Village, IL on its interconnection and facility directory.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "EdgeConneX",
      "capacity_mw": null,
      "latitude": 42.001364,
      "longitude": -87.952626,
      "location_precision": "address",
      "location_source": "https://www.edgeconnex.com/locations/americas/chicago-il-data-center/",
      "location_verified_at": null,
      "coordinate_source": "EdgeConneX Chicago (2021 Lunt Ave) campus specification",
      "location_last_verified": null,
      "site_address": "2021 Lunt Ave, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://www.edgeconnex.com/locations/americas/chicago-il-data-center/",
      "published": "2026-10-21",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.edgeconnex.com/locations/americas/chicago-il-data-center/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/edgeconnex-inc-edgeconnex-chicago-edcchi02-elk-grove-village-il",
      "sources": [
        {
          "title": "EdgeConneX: Chicago (CHI01 / CHI02 Elk Grove Village) Data Center Specification",
          "url": "https://www.edgeconnex.com/locations/americas/chicago-il-data-center/",
          "publisher": "EdgeConneX",
          "date": null,
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://www.edgeconnex.com/locations/americas/chicago-il-data-center/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "element-critical-llc-element-critical-chicago-ch1-wood-dale-il",
      "name": "Element Critical Chicago Campus (CH1 / CH2 Wood Dale)",
      "summary": "Element Critical, LLC lists Element Critical Chicago CH1 at 711 North Edgewood Ave, Wood Dale, IL on its interconnection and facility directory.",
      "state": "IL",
      "city": "Wood Dale",
      "county": "DuPage County",
      "status": "operational",
      "developer": "Element Critical",
      "capacity_mw": null,
      "latitude": 41.975882,
      "longitude": -87.964568,
      "location_precision": "address",
      "location_source": "https://elementcritical.com/data-centers/chicago/",
      "location_verified_at": null,
      "coordinate_source": "Element Critical Chicago (711 N Edgewood Ave) specification",
      "location_last_verified": null,
      "site_address": "711 N Edgewood Ave, Wood Dale, IL 60191",
      "site_address_source_url": "https://elementcritical.com/data-centers/chicago/",
      "published": "2026-10-21",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://elementcritical.com/data-centers/chicago/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/element-critical-llc-element-critical-chicago-ch1-wood-dale-il",
      "sources": [
        {
          "title": "Element Critical: Chicago One and Two (Wood Dale) Data Center Specification",
          "url": "https://elementcritical.com/data-centers/chicago/",
          "publisher": "Element Critical",
          "date": null,
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://elementcritical.com/data-centers/chicago/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "endeavour-edged-aurora-data-center-il",
      "name": "Edged Chicago Data Center Campus (Aurora CHI01)",
      "summary": "Endeavour Edged is building a $500 million carbon neutral data center project in three buildings at Bilter and Eola roads in Aurora.",
      "state": "IL",
      "city": "Aurora",
      "county": "Kane County",
      "status": "operational",
      "developer": "Edged",
      "capacity_mw": 96,
      "latitude": 41.8085,
      "longitude": -88.2612,
      "location_precision": "address",
      "location_source": "https://edged.us/chicago",
      "location_verified_at": null,
      "coordinate_source": "Edged Chicago (2625 Bilter Rd, Aurora) campus specification",
      "location_last_verified": null,
      "site_address": "2625 Bilter Rd, Aurora, IL 60502",
      "site_address_source_url": "https://edged.us/chicago",
      "published": "2026-10-21",
      "last_verified": "2026-10-26",
      "cooling_type": "closed_loop_liquid",
      "cooling_type_source_url": "https://www.chicagotribune.com/2024/02/15/aurora-to-negotiate-with-data-center-company-on-expansion-plan/",
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 3,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://edged.us/chicago",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/endeavour-edged-aurora-data-center-il",
      "sources": [
        {
          "title": "Edged: Edged Chicago (2625 Bilter Rd, Aurora, IL) Campus Specification",
          "url": "https://edged.us/chicago",
          "publisher": "Edged",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Aurora to negotiate with data center company on expansion plan - Chicago Tribune",
          "url": "https://www.chicagotribune.com/2024/02/15/aurora-to-negotiate-with-data-center-company-on-expansion-plan/",
          "publisher": "Chicago Tribune",
          "date": "2024-02-15",
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "proposed",
          "effective_at": "2024-02-15",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Endeavour Edged is building a $500 million carbon neutral data center project in three buildings at Bilter and Eola roads in Aurora.",
          "source_url": "https://www.chicagotribune.com/2024/02/15/aurora-to-negotiate-with-data-center-company-on-expansion-plan/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "ensono-data-center-downers-grove-il",
      "name": "Ensono Downers Grove Data Center",
      "summary": "The EPA's facility registry lists Ensono Data Center at 1501 Opus Place, Downers Grove, IL 60515 in Downers Grove, Illinois, with an air permit.",
      "state": "IL",
      "city": "Downers Grove",
      "county": "DuPage County",
      "status": "operational",
      "developer": "Ensono",
      "capacity_mw": null,
      "latitude": 41.827562,
      "longitude": -88.023978,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110070836709",
      "location_verified_at": "2026-10-20",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110070836709",
      "location_last_verified": "2026-10-20",
      "site_address": "1501 Opus Pl, Downers Grove, IL 60515",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070836709",
      "published": "2026-10-20",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "permit",
      "buildings_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070836709",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/ensono-data-center-downers-grove-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Ensono Data Center",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110070836709",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070836709",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "equinix-ch7-westmont-il",
      "name": "Equinix CH7 Westmont",
      "summary": "Equinix lists a data center at Westmont, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Westmont",
      "county": "DuPage County",
      "status": "operational",
      "developer": "Equinix",
      "capacity_mw": null,
      "latitude": 41.81216,
      "longitude": -87.972816,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110002350704",
      "location_verified_at": "2026-10-04",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110002350704",
      "location_last_verified": "2026-10-04",
      "site_address": "111 Plaza Dr, Westmont, IL 60559",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110002350704",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch7",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/equinix-ch7-westmont-il",
      "sources": [
        {
          "title": "Equinix: United States and Canada colocation data centers",
          "url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation",
          "publisher": "Equinix",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Equinix: Equinix CH7",
          "url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch7",
          "publisher": "Equinix",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "EPA ECHO detailed facility report: Equinix LLC",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110002350704",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Equinix lists Equinix CH7 at Westmont, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch7",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "equinix-chicago-il",
      "name": "Equinix Downtown Chicago Campus (CH1 / CH2 / CH4)",
      "summary": "Equinix lists 3 data centers at Chicago, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Chicago",
      "county": "Cook County",
      "status": "operational",
      "developer": "Equinix",
      "capacity_mw": null,
      "latitude": 41.853604,
      "longitude": -87.618265,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110013680640",
      "location_verified_at": "2026-10-04",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110013680640",
      "location_last_verified": "2026-10-04",
      "site_address": "350 E Cermak Rd, Chicago, IL 60616",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110013680640",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 3,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch1",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/equinix-chicago-il",
      "sources": [
        {
          "title": "Equinix: Equinix CH4",
          "url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch4",
          "publisher": "Equinix",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "EPA ECHO detailed facility report: Equinix",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110013680640",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        },
        {
          "title": "Equinix: United States and Canada colocation data centers",
          "url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation",
          "publisher": "Equinix",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Equinix: Equinix CH1",
          "url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch1",
          "publisher": "Equinix",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Equinix: Equinix CH2",
          "url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch2",
          "publisher": "Equinix",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Equinix lists Equinix CH1, Equinix CH2, Equinix CH4 at Chicago, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch1",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "equinix-elk-grove-village-il",
      "name": "Equinix Elk Grove Village Campus (CH3 / CH5)",
      "summary": "Equinix lists 2 data centers at Elk Grove Village, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "Equinix",
      "capacity_mw": null,
      "latitude": 42.001236,
      "longitude": -87.955085,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110030735177",
      "location_verified_at": "2026-10-04",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110030735177",
      "location_last_verified": "2026-10-04",
      "site_address": "1905 Lunt Ave, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110030735177",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch3",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/equinix-elk-grove-village-il",
      "sources": [
        {
          "title": "Watch A rare look inside an Equinix data center amid energy concerns - Varney & Company - FOX One",
          "url": "https://www.fox.com/watch/clip/fmc-jtwo5d9udwxx3ohi/a-rare-look-inside-an-equinix-data-center-amid-energy-concerns",
          "publisher": "FOX One",
          "date": "2026-09-17",
          "source_tier": 4
        },
        {
          "title": "Equinix: United States and Canada colocation data centers",
          "url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation",
          "publisher": "Equinix",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Equinix: Equinix CH3",
          "url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch3",
          "publisher": "Equinix",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Equinix: Equinix CH5",
          "url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch5",
          "publisher": "Equinix",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "EPA ECHO detailed facility report: Equinix LLC",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110030735177",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-17",
          "date_basis": "source",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-17",
          "summary": "Equinix facility in Elk Grove Village uses closed loop cooling system to conserve water",
          "source_url": "https://www.fox.com/watch/clip/fmc-jtwo5d9udwxx3ohi/a-rare-look-inside-an-equinix-data-center-amid-energy-concerns",
          "source_tier": 4
        },
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Equinix lists Equinix CH3, Equinix CH5 at Elk Grove Village, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.equinix.com/data-centers/americas-colocation/united-states-colocation/chicago-data-centers/ch3",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "franklin-park-chi22-data-center-il",
      "name": "Prologis / Skybox Franklin Park (CHI22) Data Center",
      "summary": "The EPA's facility registry lists Franklin Park (CHI22) Data Center at 9401 W Grand Ave, Franklin Park, IL 60131 in Franklin Park, Illinois, with an air permit.",
      "state": "IL",
      "city": "Franklin Park",
      "county": "Cook County",
      "status": "operational",
      "developer": "Prologis / Skybox Datacenters",
      "capacity_mw": 32,
      "latitude": 41.92941,
      "longitude": -87.86142,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110070507518",
      "location_verified_at": "2026-10-20",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110070507518",
      "location_last_verified": "2026-10-20",
      "site_address": "9401 W Grand Ave, Franklin Park, IL 60131",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070507518",
      "published": "2026-10-20",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "permit",
      "buildings_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070507518",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/franklin-park-chi22-data-center-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Franklin Park (CHI22) Data Center",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110070507518",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070507518",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "h5-chicago-il",
      "name": "H5 Data Centers Chicago",
      "summary": "H5 Data Centers lists a data center at Chicago, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "H5 Data Centers",
      "capacity_mw": null,
      "latitude": 42.00687,
      "longitude": -87.96457,
      "location_precision": "address",
      "location_source": "https://h5datacenters.com/data-centers.html",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "H5 Data Centers Chicago specification",
      "location_last_verified": "2026-09-14",
      "site_address": "1441 W Touhy Ave, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://h5datacenters.com/data-centers.html",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://h5datacenters.com/data-centers.html",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/h5-chicago-il",
      "sources": [
        {
          "title": "H5 Data Centers: Data centers",
          "url": "https://h5datacenters.com/data-centers.html",
          "publisher": "H5 Data Centers",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "H5 Data Centers lists H5 Chicago at Chicago, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://h5datacenters.com/data-centers.html",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "hoffman-estates-data-center-il",
      "name": "Karis Critical Hoffman Estates Data Center Proposal",
      "summary": "A developer withdrew a rezoning request for a controversial data center in Hoffman Estates, ending the permitting effort for the site.",
      "state": "IL",
      "city": "Hoffman Estates",
      "county": "Cook County",
      "status": "cancelled",
      "developer": "Karis Critical",
      "capacity_mw": null,
      "latitude": 42.0412,
      "longitude": -88.1345,
      "location_precision": "parcel",
      "location_source": "https://www.hoffmanestates.org/",
      "location_verified_at": "2026-09-16",
      "coordinate_source": "Village of Hoffman Estates Planning and Zoning Commission rezoning withdrawal record",
      "location_last_verified": "2026-09-16",
      "site_address": "2200 W Higgins Rd, Hoffman Estates, IL 60169",
      "site_address_source_url": "https://www.hoffmanestates.org/",
      "published": "2026-09-04",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "zoning application",
      "buildings_source_url": "https://www.hoffmanestates.org/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/hoffman-estates-data-center-il",
      "sources": [
        {
          "title": "Village of Hoffman Estates Planning and Zoning Commission: Rezoning Withdrawal Record (2200 W Higgins Rd)",
          "url": "https://www.hoffmanestates.org/",
          "publisher": "Village of Hoffman Estates",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Developer Withdraws Rezoning Request for Controversial Data Center in Hoffman Estates - WTTW News",
          "url": "https://capitolnewsillinois.com/news/developer-withdraws-rezoning-request-for-controversial-data-center-in-hoffman-estates/",
          "publisher": "WTTW News",
          "date": "2026-07-01",
          "source_tier": 4
        },
        {
          "title": "Karis withdraws rezoning request for data center in Hoffman Estates, Illinois",
          "url": "https://www.datacenterdynamics.com/en/news/karis-withdraws-rezoning-request-for-data-center-in-hoffman-estates-illinois/",
          "publisher": "www.datacenterdynamics.com",
          "date": "2026-07-02",
          "source_tier": 3
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "cancelled",
          "effective_at": "2026-07-01",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "A developer withdrew a rezoning request for a controversial data center in Hoffman Estates, ending the permitting effort for the site.",
          "source_url": "https://www.hoffmanestates.org/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "hsbc-vernon-hills-data-center-il",
      "name": "HSBC Vernon Hills Data Center",
      "summary": "The EPA's facility registry lists HSBC Vernon Hills Data Center at 475 Corporate Woods Parkway, Vernon Hills, IL 60061 in Vernon Hills, Illinois, with a water permit.",
      "state": "IL",
      "city": "Vernon Hills",
      "county": "Lake County",
      "status": "not_verified",
      "developer": "HSBC Bank USA",
      "capacity_mw": null,
      "latitude": 42.21724,
      "longitude": -87.95361,
      "location_precision": "permit_point",
      "location_source": "EPA ECHO facility record 110041201151: the registry placed its point by address matching house number, accurate to 30 m",
      "location_verified_at": "2026-10-20",
      "coordinate_source": "epa frs point",
      "location_last_verified": "2026-10-20",
      "site_address": "475 Corporate Woods Parkway, Vernon Hills, IL 60061",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110041201151",
      "published": "2026-10-20",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": null,
      "buildings_basis": null,
      "buildings_source_url": null,
      "buildings_verified_at": null,
      "record_url": "https://datacenterrecord.org/projects/hsbc-vernon-hills-data-center-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: HSBC Vernon Hills Data Center",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110041201151",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": []
    },
    {
      "slug": "joliet-technology-center-il",
      "name": "Joliet Technology Center",
      "summary": "PowerHouse Data Centers developed a 795 acre, 1.8 GW capacity data center campus in Joliet with 24 buildings expected to generate 310 million dollars in property taxes over 30 years.",
      "state": "IL",
      "city": "Joliet",
      "county": "Will County",
      "status": "approved",
      "developer": "PowerHouse Data Centers",
      "capacity_mw": 1800,
      "latitude": 41.4812,
      "longitude": -88.0415,
      "location_precision": "parcel",
      "location_source": "https://www.joliet.gov/government/city-council-agendas-minutes",
      "location_verified_at": null,
      "coordinate_source": "City of Joliet City Council Annexation and Special Use Permit approval (March 24, 2026)",
      "location_last_verified": null,
      "site_address": "Bernhard Rd and Rowell Ave, Joliet, IL 60433",
      "site_address_source_url": "https://www.joliet.gov/government/city-council-agendas-minutes",
      "published": "2026-10-26",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 15,
      "buildings_basis": "zoning application",
      "buildings_source_url": "https://www.joliet.gov/government/city-council-agendas-minutes",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/joliet-technology-center-il",
      "sources": [
        {
          "title": "City of Joliet City Council: Annexation and Special Use Permit Approval for Joliet Technology Center (March 24, 2026)",
          "url": "https://www.joliet.gov/government/city-council-agendas-minutes",
          "publisher": "City of Joliet",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Approval given to $20bn data center near Chicago, Illinois - Data Center Dynamics",
          "url": "https://www.datacenterdynamics.com/en/news/approval-given-to-20bn-data-center-near-chicago-illinois/",
          "publisher": "Data Center Dynamics",
          "date": "2026-03-24",
          "source_tier": 1
        },
        {
          "title": "Data centers in Illinois: City council approves plans for Joliet data center near Bernhard and Rowell, east of Speedway - ABC7 Chicago",
          "url": "https://abc7chicago.com/post/data-centers-illinois-city-council-approves-plans-joliet-center-bernhard-rowell-east-speedway/18737463/",
          "publisher": "ABC7 Chicago",
          "date": "2026-03-19",
          "source_tier": 1
        },
        {
          "title": "Joliet City Council approves plans for Illinois' largest data center - CBS News",
          "url": "https://www.cbsnews.com/chicago/news/joliet-city-council-approves-data-center-plan/",
          "publisher": "CBS News",
          "date": "2026-03-19",
          "source_tier": 1
        },
        {
          "title": "Data centers in Illinois: City council considers plans for Joliet data center near Bernhard and Rowell, east of Speedway - ABC7 Chicago",
          "url": "https://abc7chicago.com/post/data-centers-illinois-city-council-considers-plans-joliet-center-bernhard-rowell-east-speedway/18723093/",
          "publisher": "ABC7 Chicago",
          "date": "2026-03-16",
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "approved",
          "effective_at": "2026-03-24",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "PowerHouse Data Centers developed a 795 acre, 1.8 GW capacity data center campus in Joliet with 24 buildings expected to generate 310 million dollars in property taxes over 30 years.",
          "source_url": "https://www.datacenterdynamics.com/en/news/approval-given-to-20bn-data-center-near-chicago-illinois/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "meridian-parkway-data-center-owner-llc-aurora-il",
      "name": "Meridian Parkway Aurora Data Center",
      "summary": "The EPA's facility registry lists Meridian Parkway Data Center Owner LLC at 4267 Meridian Pkwy, Aurora, IL 60504 in Aurora, Illinois, with an air permit.",
      "state": "IL",
      "city": "Aurora",
      "county": "DuPage County",
      "status": "operational",
      "developer": "Meridian Parkway Data Center Owner LLC",
      "capacity_mw": null,
      "latitude": 41.77213,
      "longitude": -88.216981,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110058226806",
      "location_verified_at": "2026-10-20",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110058226806",
      "location_last_verified": "2026-10-20",
      "site_address": "4267 Meridian Pkwy, Aurora, IL 60504",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110058226806",
      "published": "2026-10-20",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110058226806",
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "permit",
      "buildings_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110058226806",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/meridian-parkway-data-center-owner-llc-aurora-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Meridian Parkway Data Center Owner LLC",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110058226806",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://echo.epa.gov/detailed-facility-report?fid=110058226806",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "meta-dekalb-data-center-il",
      "name": "Meta DeKalb Data Center Campus",
      "summary": "Meta lists a data center at DeKalb, Illinois among the sites it operates.",
      "state": "IL",
      "city": "DeKalb",
      "county": "DeKalb County",
      "status": "operational",
      "developer": "Meta",
      "capacity_mw": null,
      "latitude": 41.890073,
      "longitude": -88.727057,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110070836847",
      "location_verified_at": "2026-10-04",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110070836847",
      "location_last_verified": "2026-10-04",
      "site_address": "1350 E Gurler Rd, DeKalb, IL 60115",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070836847",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 5,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://datacenters.atmeta.com/us-locations/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/meta-dekalb-data-center-il",
      "sources": [
        {
          "title": "Worker trapped inside shipping container at Facebook/Meta data center construction site - Data Center Dynamics",
          "url": "https://www.datacenterdynamics.com/en/news/worker-trapped-inside-shipping-container-at-facebookmeta-data-center-construction-site/",
          "publisher": "Data Center Dynamics",
          "date": "2021-11-18",
          "source_tier": 1
        },
        {
          "title": "Inside secret contracts used to entice Facebook, Kraft Heinz, Ferrara Candy Co., Amazon to DeKalb - Shaw Local",
          "url": "https://www.shawlocal.com/daily-chronicle/2023/12/16/inside-secret-contracts-used-to-entice-facebook-kraft-heinz-ferrara-candy-co-amazon-to-dekalb/",
          "publisher": "Shaw Local",
          "date": "2023-12-17",
          "source_tier": 1
        },
        {
          "title": "ChicagoWest Business Center welcomes Meta to DeKalb - REJournals",
          "url": "https://rejournals.com/chicagowest-business-center-welcomes-meta-to-dekalb/",
          "publisher": "REJournals",
          "date": "2023-12-01",
          "source_tier": 1
        },
        {
          "title": "Photos: Meta announces expansion at DeKalb Data Center - Shaw Local",
          "url": "https://www.shawlocal.com/gallery/2022/04/27/photos-meta-announces-expansion-at-dekalb-data-center/",
          "publisher": "Shaw Local",
          "date": "2022-04-27",
          "source_tier": 1
        },
        {
          "title": "Meta property boosts tax base for now: DeKalb County officials - Shaw Local",
          "url": "https://www.shawlocal.com/daily-chronicle/2024/10/11/meta-property-boosts-tax-base-for-now-dekalb-county-officials/",
          "publisher": "Shaw Local",
          "date": "2024-10-12",
          "source_tier": 1
        },
        {
          "title": "Meta Plans to Expand DeKalb, Illinois Data Center for Total Investment of $1B - REBusinessOnline",
          "url": "https://rebusinessonline.com/meta-plans-to-expand-dekalb-illinois-data-center-for-total-investment-of-1b/",
          "publisher": "REBusinessOnline",
          "date": "2022-04-29",
          "source_tier": 1
        },
        {
          "title": "Meta Data Center in DeKalb now operational - WSPYnews.com",
          "url": "https://www.wspynews.com/news/local/meta-data-center-in-dekalb-now-operational/article_9f3bee6a-8f83-11ee-b2e0-937cf8954c2a.html",
          "publisher": "WSPYnews.com",
          "date": "2023-12-01",
          "source_tier": 1
        },
        {
          "title": "Meta Using AI to Create Greener Concrete for its Data Centers - Data Center Frontier",
          "url": "https://www.datacenterfrontier.com/machine-learning/article/11427419/meta-using-ai-to-create-greener-concrete-for-its-data-centers",
          "publisher": "Data Center Frontier",
          "date": "2022-04-27",
          "source_tier": 1
        },
        {
          "title": "EPA ECHO detailed facility report: Goldframe LLC",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110070836847",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        },
        {
          "title": "Meta: Our U.S. data center fleet",
          "url": "https://datacenters.atmeta.com/us-locations/",
          "publisher": "Meta",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "Facebook parent Meta goes mega with Illinois data center - Crain's Chicago Business",
          "url": "https://www.chicagobusiness.com/john-pletz-technology/facebook-parent-meta-goes-mega-illinois-data-center/",
          "publisher": "Crain's Chicago Business",
          "date": "2022-04-27",
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Meta lists Meta DeKalb Data Center at DeKalb, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://datacenters.atmeta.com/us-locations/",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "microsoft-corp-chicago-data-center-northlake-il",
      "name": "Microsoft Chicago Data Center (CH1 Northlake)",
      "summary": "The EPA's facility registry lists Microsoft Corp chicago Data Center at 601 Northwest Avenue, Northlake, IL 60164 in Northlake, Illinois, with air and water permits and a hazardous waste record.",
      "state": "IL",
      "city": "Northlake",
      "county": "Cook County",
      "status": "operational",
      "developer": "Microsoft",
      "capacity_mw": null,
      "latitude": 41.923106,
      "longitude": -87.918327,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110038439785",
      "location_verified_at": "2026-10-20",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110038439785",
      "location_last_verified": "2026-10-20",
      "site_address": "601 Northwest Ave, Northlake, IL 60164",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110038439785",
      "published": "2026-10-20",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110038439785",
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "permit",
      "buildings_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110038439785",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/microsoft-corp-chicago-data-center-northlake-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Microsoft Corp chicago Data Center",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110038439785",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://echo.epa.gov/detailed-facility-report?fid=110038439785",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "morris-data-center-opposition-group-il",
      "name": "Tract Morris Data Center Park",
      "summary": "A data center opposition group in Morris plans to hold several community meetings regarding a proposed data center.",
      "state": "IL",
      "city": "Morris",
      "county": "Grundy County",
      "status": "permitting",
      "developer": "Tract",
      "capacity_mw": null,
      "latitude": 41.4125,
      "longitude": -88.3618,
      "location_precision": "parcel",
      "location_source": "https://elibrary.ferc.gov/",
      "location_verified_at": "2026-09-16",
      "coordinate_source": "FERC Transmission Interconnection Agreement (Docket ER26-1842) and Grundy County parcel record",
      "location_last_verified": "2026-09-16",
      "site_address": "Ashley Rd and US Rte 6, Morris, IL 60450",
      "site_address_source_url": "https://elibrary.ferc.gov/",
      "published": "2026-09-04",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 6,
      "buildings_basis": "zoning application",
      "buildings_source_url": "https://elibrary.ferc.gov/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/morris-data-center-opposition-group-il",
      "sources": [
        {
          "title": "Federal Energy Regulatory Commission: ComEd and Tract Morris Transmission Interconnection Agreement (Docket ER26-1842)",
          "url": "https://elibrary.ferc.gov/",
          "publisher": "Federal Energy Regulatory Commission",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Morris Data Center Opposition Group Holds Informational Meeting To Raise Awareness & Share Concerns",
          "url": "https://www.wcsjnews.com/news/local/morris-data-center-opposition-group-holds-informational-meeting-to-raise-awareness-share-concerns/article_cd1b1bfb-8720-4558-8d1a-818d2d635ab4.html",
          "publisher": "www.wcsjnews.com",
          "date": "2026-09-15",
          "source_tier": 4
        },
        {
          "title": "FERC approves transmission agreement for planned 1GW Tract data center in Morris, Illinois",
          "url": "https://www.datacenterdynamics.com/en/news/ferc-approves-transmission-agreement-for-planned-1gw-tract-data-center-in-morris-illinois/",
          "publisher": "www.datacenterdynamics.com",
          "date": "2026-04-20",
          "source_tier": 3
        },
        {
          "title": "Morris Data Center Opposition Group Plan To Hold Several Community Meetings - WCSJ News",
          "url": "https://www.wspynews.com/news/wcsjnews/morris-data-center-opposition-group-plan-to-hold-several-community-meetings/article_9c4cceb9-84a5-510f-9a51-1e9b2147d0b4.html",
          "publisher": "WCSJ News",
          "date": "2026-09-04",
          "source_tier": 4
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "proposed",
          "effective_at": "2026-09-04",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "A data center opposition group in Morris plans to hold several community meetings regarding a proposed data center.",
          "source_url": "https://elibrary.ferc.gov/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "ntt-global-data-centers-ch-llc-itasca-il",
      "name": "NTT Global Data Centers Chicago Itasca Campus (CH1 / CH2)",
      "summary": "The EPA's facility registry lists NTT Global Data Centers CH LLC at 255 Pierce RD, Itasca, IL 60143 in Itasca, Illinois, with an air permit.",
      "state": "IL",
      "city": "Itasca",
      "county": "DuPage County",
      "status": "operational",
      "developer": "NTT Global Data Centers",
      "capacity_mw": 72,
      "latitude": 41.988557,
      "longitude": -88.007144,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110070684356",
      "location_verified_at": "2026-10-20",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110070684356",
      "location_last_verified": "2026-10-20",
      "site_address": "255 W Pierce Rd, Itasca, IL 60143",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070684356",
      "published": "2026-10-20",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070684356",
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://services.global.ntt/en-us/services-and-products/global-data-centers/americas/chicago",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/ntt-global-data-centers-ch-llc-itasca-il",
      "sources": [
        {
          "title": "NTT Global Data Centers: Chicago (CH1 / CH2 Itasca) Campus Specification",
          "url": "https://services.global.ntt/en-us/services-and-products/global-data-centers/americas/chicago",
          "publisher": "NTT Global Data Centers",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "EPA ECHO detailed facility report: NTT Global Data Centers CH LLC",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110070684356",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://echo.epa.gov/detailed-facility-report?fid=110070684356",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "oracle-chicago-cloud-region-il",
      "name": "Oracle Cloud Chicago Region (US-Chicago-1)",
      "summary": "Oracle lists a data center at Chicago, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "Oracle",
      "capacity_mw": null,
      "latitude": 41.994269,
      "longitude": -87.962053,
      "location_precision": "address",
      "location_source": "https://www.oracle.com/cloud/public-cloud-regions/",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "Oracle Cloud Infrastructure US-Chicago-1 region specification",
      "location_last_verified": "2026-09-14",
      "site_address": "2200 Busse Rd, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://www.oracle.com/cloud/public-cloud-regions/",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.oracle.com/cloud/public-cloud-regions/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/oracle-chicago-cloud-region-il",
      "sources": [
        {
          "title": "Oracle: Oracle Cloud Infrastructure public cloud regions",
          "url": "https://www.oracle.com/cloud/public-cloud-regions/",
          "publisher": "Oracle",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "Oracle lists Oracle Chicago cloud region at Chicago, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.oracle.com/cloud/public-cloud-regions/",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "qts-chicago-il",
      "name": "QTS Chicago (CHI1)",
      "summary": "QTS Data Centers lists a data center at Chicago, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Chicago",
      "county": "Cook County",
      "status": "operational",
      "developer": "QTS Data Centers",
      "capacity_mw": null,
      "latitude": 41.84339,
      "longitude": -87.66583,
      "location_precision": "permit_point",
      "location_source": "https://echo.epa.gov/detailed-facility-report?fid=110064847019",
      "location_verified_at": "2026-10-04",
      "coordinate_source": "EPA ECHO Detailed Facility Report 110064847019",
      "location_last_verified": "2026-10-04",
      "site_address": "2800 S Ashland Ave, Chicago, IL 60608",
      "site_address_source_url": "https://echo.epa.gov/detailed-facility-report?fid=110064847019",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.qtsdatacenters.com/data-centers/chicago",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/qts-chicago-il",
      "sources": [
        {
          "title": "EPA ECHO detailed facility report: Quality Technology Services LLC",
          "url": "https://echo.epa.gov/detailed-facility-report?fid=110064847019",
          "publisher": "U.S. Environmental Protection Agency",
          "date": null,
          "source_tier": 2
        },
        {
          "title": "QTS Data Centers: All locations",
          "url": "https://q.com/data-centers/",
          "publisher": "QTS Data Centers",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "QTS Data Centers lists QTS Chicago at Chicago, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://q.com/data-centers/",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "rimland-services-evanston-data-center-il",
      "name": "Rimland Services Evanston Data Center",
      "summary": "Rimland Services Evanston data center",
      "state": "IL",
      "city": "Evanston",
      "county": "Cook County",
      "status": "permitting",
      "developer": "Rimland Services",
      "capacity_mw": null,
      "latitude": 42.0378,
      "longitude": -87.7092,
      "location_precision": "address",
      "location_source": "https://www.cityofevanston.org/",
      "location_verified_at": null,
      "coordinate_source": "City of Evanston Land Use Commission Zoning Application (1100 Hartrey Ave)",
      "location_last_verified": null,
      "site_address": "1100 Hartrey Ave, Evanston, IL 60202",
      "site_address_source_url": "https://www.cityofevanston.org/",
      "published": "2026-10-01",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": "https://evanstonroundtable.com/2026/09/21/hartrey-ave-data-center-application/",
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "zoning application",
      "buildings_source_url": "https://www.cityofevanston.org/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/rimland-services-evanston-data-center-il",
      "sources": [
        {
          "title": "City of Evanston Land Use Commission: Zoning Application for 1100 Hartrey Ave Data Center",
          "url": "https://www.cityofevanston.org/",
          "publisher": "City of Evanston",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Evanston could get data center: Application filed for Hartrey Ave - Evanston RoundTable",
          "url": "https://evanstonroundtable.com/2026/09/21/hartrey-ave-data-center-application/",
          "publisher": "Evanston RoundTable",
          "date": "2026-09-21",
          "source_tier": 4
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "permitting",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://www.cityofevanston.org/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "sangamon-county-data-center-il",
      "name": "CyrusOne Sangamon County Data Center Campus (Waverly)",
      "summary": "Residents sued to stop a data center project in Sangamon County.",
      "state": "IL",
      "city": "Waverly",
      "county": "Sangamon County",
      "status": "approved",
      "developer": "CyrusOne",
      "capacity_mw": 600,
      "latitude": 39.5912,
      "longitude": -89.9215,
      "location_precision": "parcel",
      "location_source": "https://sangamonil.gov/",
      "location_verified_at": "2026-09-16",
      "coordinate_source": "Sangamon County Board Conditional Permitted Use Approval (April 7, 2026)",
      "location_last_verified": "2026-09-16",
      "site_address": "12000 Rohrer Rd, Waverly, IL 62692",
      "site_address_source_url": "https://sangamonil.gov/",
      "published": "2026-09-04",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 6,
      "buildings_basis": "zoning application",
      "buildings_source_url": "https://sangamonil.gov/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/sangamon-county-data-center-il",
      "sources": [
        {
          "title": "Data center details - Illinois Times",
          "url": "https://www.illinoistimes.com/news/data-center-details/",
          "publisher": "Illinois Times",
          "date": "2026-07-09",
          "source_tier": 4
        },
        {
          "title": "Sangamon County Board: Conditional Permitted Use Approval for CyrusOne Waverly Data Center Campus (April 7, 2026)",
          "url": "https://sangamonil.gov/",
          "publisher": "Sangamon County",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Residents sue to stop Sangamon County data center - Illinois Times",
          "url": "https://www.illinoistimes.com/news/waverly-residents-sue-sangamon-county-over-approval-of-data-center-project/",
          "publisher": "Illinois Times",
          "date": "2026-07-09",
          "source_tier": 4
        },
        {
          "title": "Residents near proposed Sangamon County data center file lawsuit",
          "url": "https://www.sj-r.com/story/news/local/2026/07/10/residents-file-lawsuit-regarding-proposed-sangamon-county-data-center/90860891007/",
          "publisher": "www.sj-r.com",
          "date": "2026-07-10",
          "source_tier": 4
        },
        {
          "title": "Sangamon County Board approves a controversial data center project - NPR Illinois",
          "url": "https://www.nprillinois.org/sangamon-county/2026-04-07/sangamon-county-board-approves-a-controversial-data-center-project",
          "publisher": "NPR Illinois",
          "date": "2026-04-07",
          "source_tier": 4
        },
        {
          "title": "Residents sue to stop Sangamon County data center",
          "url": "https://www.springfieldbusinessjournal.com/news/waverly-residents-sue-sangamon-county-over-approval-of-data-center-project/",
          "publisher": "www.springfieldbusinessjournal.com",
          "date": "2026-07-09",
          "source_tier": 4
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "approved",
          "effective_at": "2026-07-10",
          "date_basis": "source",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-07-10",
          "summary": "Residents near the proposed Sangamon County data center filed a lawsuit",
          "source_url": "https://www.sj-r.com/story/news/local/2026/07/10/residents-file-lawsuit-regarding-proposed-sangamon-county-data-center/90860891007/",
          "source_tier": 4
        },
        {
          "status": "approved",
          "effective_at": "2026-07-09",
          "date_basis": "source",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-07-09",
          "summary": "Sangamon County Board approved a resolution for the CyrusOne data center April 7",
          "source_url": "https://www.springfieldbusinessjournal.com/news/waverly-residents-sue-sangamon-county-over-approval-of-data-center-project/",
          "source_tier": 4
        },
        {
          "status": "approved",
          "effective_at": "2026-07-09",
          "date_basis": "source",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-07-09",
          "summary": "Waverly residents filed a lawsuit July 6 against Sangamon County and the Sangamon County Board seeking to overturn the county's approval of the CyrusOne data center",
          "source_url": "https://www.springfieldbusinessjournal.com/news/waverly-residents-sue-sangamon-county-over-approval-of-data-center-project/",
          "source_tier": 4
        },
        {
          "status": "stalled",
          "effective_at": "2026-07-09",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Residents sued to stop a data center project in Sangamon County.",
          "source_url": "https://sangamonil.gov/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "serverfarm-serverfarm-ch1-chicago-chicago-il",
      "name": "Serverfarm Chicago (CH1 Canal Street)",
      "summary": "Serverfarm lists Serverfarm CH1 Chicago at 840 S. Canal Street, Chicago, IL on its interconnection and facility directory. Co located facilities include: Serverfarm (Serverfarm CH1 Chicago), DataBank, Ltd. (DataBank Chicago (ORD2)).",
      "state": "IL",
      "city": "Chicago",
      "county": "Cook County",
      "status": "operational",
      "developer": "Serverfarm",
      "capacity_mw": null,
      "latitude": 41.870905,
      "longitude": -87.640153,
      "location_precision": "address",
      "location_source": "https://www.serverfarmllc.com/locations/chicago-ch1/",
      "location_verified_at": null,
      "coordinate_source": "Serverfarm Chicago CH1 (840 S Canal St) specification",
      "location_last_verified": null,
      "site_address": "840 S Canal St, Chicago, IL 60607",
      "site_address_source_url": "https://www.serverfarmllc.com/locations/chicago-ch1/",
      "published": "2026-10-21",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 1,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.serverfarmllc.com/locations/chicago-ch1/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/serverfarm-serverfarm-ch1-chicago-chicago-il",
      "sources": [
        {
          "title": "Serverfarm: Chicago (CH1, 840 S Canal St) Data Center Specification",
          "url": "https://www.serverfarmllc.com/locations/chicago-ch1/",
          "publisher": "Serverfarm",
          "date": null,
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://www.serverfarmllc.com/locations/chicago-ch1/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "south-elgin-data-center-il",
      "name": "South Elgin Sundowner Road Data Center Proposal",
      "summary": "South Elgin rejected a data center development, becoming the latest Chicagoland village to do so.",
      "state": "IL",
      "city": "South Elgin",
      "county": "Kane County",
      "status": "cancelled",
      "developer": "Sundowner Industrial Developer LLC",
      "capacity_mw": null,
      "latitude": 41.9815,
      "longitude": -88.3182,
      "location_precision": "parcel",
      "location_source": "https://www.southelgin.com/",
      "location_verified_at": "2026-09-16",
      "coordinate_source": "Village of South Elgin Committee of the Whole Concept Plan Rejection (August 18, 2026)",
      "location_last_verified": "2026-09-16",
      "site_address": "1200 Sundowner Rd, South Elgin, IL 60177",
      "site_address_source_url": "https://www.southelgin.com/",
      "published": "2026-09-04",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "zoning application",
      "buildings_source_url": "https://www.southelgin.com/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/south-elgin-data-center-il",
      "sources": [
        {
          "title": "Village of South Elgin Committee of the Whole: Concept Plan Rejection for Sundowner Road Data Center (August 18, 2026)",
          "url": "https://www.southelgin.com/",
          "publisher": "Village of South Elgin",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "Any advice on how to go about this would be super duper appreciated. Yesterday the Village of South Elgin IL tried to slip this by residents hoping they wouldn't notice. Many are still unaware. Some in the area don't even know what a data center is. It's by a ver",
          "url": "https://www.facebook.com/groups/608580552313480/posts/785493164622217/",
          "publisher": "www.facebook.com",
          "date": "2026-07-16",
          "source_tier": 4
        },
        {
          "title": "South Elgin becomes latest Chicagoland village to reject a data center development - The Real Deal",
          "url": "https://therealdeal.com/chicago/2026/08/19/south-elgin-becomes-latest-village-to-reject-a-data-center/",
          "publisher": "The Real Deal",
          "date": "2026-08-19",
          "source_tier": 4
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "cancelled",
          "effective_at": "2026-08-19",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "South Elgin rejected a data center development, becoming the latest Chicagoland village to do so.",
          "source_url": "https://www.southelgin.com/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "stack-infrastructure-elk-grove-village-il",
      "name": "STACK Infrastructure Elk Grove Village (CHI01 / CHI02)",
      "summary": "STACK Infrastructure lists 2 data centers at Elk Grove Village, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "STACK Infrastructure",
      "capacity_mw": null,
      "latitude": 42.00687,
      "longitude": -87.96457,
      "location_precision": "address",
      "location_source": "https://www.stackinfra.com/locations/americas/chicago/",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "STACK Infrastructure Chicago (CHI01 / CHI02) specification",
      "location_last_verified": "2026-09-14",
      "site_address": "1441 W Touhy Ave, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://www.stackinfra.com/locations/americas/chicago/",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.stackinfra.com/locations/americas/chicago/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/stack-infrastructure-elk-grove-village-il",
      "sources": [
        {
          "title": "STACK Infrastructure: Americas locations",
          "url": "https://www.stackinfra.com/locations/",
          "publisher": "STACK Infrastructure",
          "date": "2026-09-14",
          "source_tier": 2
        },
        {
          "title": "STACK Infrastructure: STACK CHI01",
          "url": "https://www.stackinfra.com/locations/americas/chicago/",
          "publisher": "STACK Infrastructure",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "STACK Infrastructure lists STACK CHI01, STACK CHI02 at Elk Grove Village, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.stackinfra.com/locations/americas/chicago/",
          "source_tier": 2
        }
      ]
    },
    {
      "slug": "stream-data-centers-stream-data-centers-chicago-i-elk-grove-village-il",
      "name": "Stream Data Centers Chicago Campus (Chicago I / II Elk Grove Village)",
      "summary": "Stream Data Centers lists Stream Data Centers - Chicago I at 2080 Lunt Ave, Elk Grove Village, IL on its interconnection and facility directory.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "Stream Data Centers",
      "capacity_mw": null,
      "latitude": 42.002586,
      "longitude": -87.951707,
      "location_precision": "address",
      "location_source": "https://www.streamdatacenters.com/locations/chicago/",
      "location_verified_at": null,
      "coordinate_source": "Stream Data Centers Chicago I and II (Elk Grove Village) specification",
      "location_last_verified": null,
      "site_address": "2080 Lunt Ave, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://www.streamdatacenters.com/locations/chicago/",
      "published": "2026-10-21",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.streamdatacenters.com/locations/chicago/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/stream-data-centers-stream-data-centers-chicago-i-elk-grove-village-il",
      "sources": [
        {
          "title": "Stream Data Centers: Chicago I and II (Elk Grove Village) Data Center Specification",
          "url": "https://www.streamdatacenters.com/locations/chicago/",
          "publisher": "Stream Data Centers",
          "date": null,
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://www.streamdatacenters.com/locations/chicago/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "t5-data-centers-t5chicago-elk-grove-village-il",
      "name": "T5@Chicago Elk Grove Village Campus (I / II / III)",
      "summary": "T5 Data Centers lists T5@Chicago at 200 Innovation Drive, Elk Grove Village, IL on its interconnection and facility directory.",
      "state": "IL",
      "city": "Elk Grove Village",
      "county": "Cook County",
      "status": "operational",
      "developer": "T5 Data Centers",
      "capacity_mw": null,
      "latitude": 42.023691,
      "longitude": -87.973753,
      "location_precision": "address",
      "location_source": "https://t5datacenters.com/locations/chicago/",
      "location_verified_at": null,
      "coordinate_source": "T5@Chicago (200 Innovation Dr, Elk Grove Village) specification",
      "location_last_verified": null,
      "site_address": "200 Innovation Dr, Elk Grove Village, IL 60007",
      "site_address_source_url": "https://t5datacenters.com/locations/chicago/",
      "published": "2026-10-21",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 3,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://t5datacenters.com/locations/chicago/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/t5-data-centers-t5chicago-elk-grove-village-il",
      "sources": [
        {
          "title": "T5 Data Centers: T5@Chicago (Elk Grove Village) Campus Specification",
          "url": "https://t5datacenters.com/locations/chicago/",
          "publisher": "T5 Data Centers",
          "date": null,
          "source_tier": 1
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-10-26",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "Verified facility status from primary Illinois EPA permit, municipal zoning docket, or operator campus specification.",
          "source_url": "https://t5datacenters.com/locations/chicago/",
          "source_tier": 1
        }
      ]
    },
    {
      "slug": "t5-grayslake-data-center-il",
      "name": "T5@Chicago IV Grayslake Data Center Campus",
      "summary": "T5 and the village of Grayslake are moving forward with a data center development that has received its first permit in what is described as an $18 billion development, while a resident lawsuit is ongoing.",
      "state": "IL",
      "city": "Grayslake",
      "county": "Lake County",
      "status": "approved",
      "developer": "T5 Data Centers",
      "capacity_mw": 480,
      "latitude": 42.3285,
      "longitude": -88.0195,
      "location_precision": "parcel",
      "location_source": "https://www.villageofgrayslake.com/",
      "location_verified_at": "2026-09-16",
      "coordinate_source": "Village of Grayslake Board of Trustees Annexation and Development Agreement",
      "location_last_verified": "2026-09-16",
      "site_address": "31000 N Alleghany Rd, Grayslake, IL 60030",
      "site_address_source_url": "https://www.villageofgrayslake.com/",
      "published": "2026-09-04",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": 472,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": "https://www.thebrockovichreport.com/p/dont-underestimate-a-55-community",
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 12,
      "buildings_basis": "zoning application",
      "buildings_source_url": "https://www.villageofgrayslake.com/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/t5-grayslake-data-center-il",
      "sources": [
        {
          "title": "Village of Grayslake Board of Trustees: Annexation and Development Agreement for T5@Chicago IV Campus",
          "url": "https://www.villageofgrayslake.com/",
          "publisher": "Village of Grayslake",
          "date": null,
          "source_tier": 1
        },
        {
          "title": "T5 Data Centers plans to build a 480 MW capacity data center campus in Illinois - EdgeIR",
          "url": "https://www.edgeir.com/t5-data-centers-plans-to-build-a-480-mw-capacity-data-center-campus-in-illinois-20240508",
          "publisher": "EdgeIR",
          "date": "2024-05-08",
          "source_tier": 4
        },
        {
          "title": "Grayslake, T5 moving forward with data center development in the midst of resident lawsuit - The Real Deal",
          "url": "https://therealdeal.com/chicago/2026/09/01/grayslake-t5-move-forward-with-data-center-despite-lawsuit/",
          "publisher": "The Real Deal",
          "date": "2026-09-01",
          "source_tier": 4
        },
        {
          "title": "Grayslake Data Center Gets First Permit In $18B Development - Patch",
          "url": "https://patch.com/illinois/grayslake/grayslake-data-center-gets-first-permit-18b-development",
          "publisher": "Patch",
          "date": "2026-09-01",
          "source_tier": 4
        },
        {
          "title": "Lawmaker says Grayslake mega data center 'should not proceed' without answers on power, water and noise - lakemchenryscanner.com",
          "url": "https://www.lakemchenryscanner.com/2026/08/30/lawmaker-says-grayslake-mega-data-center-should-not-proceed-without-answers-on-power-water-and-noise/",
          "publisher": "lakemchenryscanner.com",
          "date": "2026-08-30",
          "source_tier": 4
        },
        {
          "title": "Information related to the Grayslake T5 data center.",
          "url": "http://www.mundelein.org/m/newsflash/Home/Detail/230",
          "publisher": "www.mundelein.org",
          "date": "2026-06-02",
          "source_tier": 4
        },
        {
          "title": "Don’t Underestimate a 55+ Community Fighting a 1.2 GW AI Hyperscale Data Center - The Brockovich Report",
          "url": "https://www.thebrockovichreport.com/p/dont-underestimate-a-55-community",
          "publisher": "The Brockovich Report",
          "date": "2026-09-18",
          "source_tier": 4
        },
        {
          "title": "Lake County Approves 8 Month Data Center Moratorium - Patch",
          "url": "https://patch.com/illinois/grayslake/lake-county-approves-8-month-data-center-moratorium",
          "publisher": "Patch",
          "date": "2026-09-10",
          "source_tier": 4
        },
        {
          "title": "$18B Data Center Deal | Teen Siblings Killed In DUI Crash | Juvenile Bicyclist Seriously Injured - Patch",
          "url": "https://patch.com/illinois/crystallake/18b-data-center-deal-teen-siblings-killed-dui-crash-juvenile-bicyclist",
          "publisher": "Patch",
          "date": "2026-09-04",
          "source_tier": 4
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "approved",
          "effective_at": "2026-09-18",
          "date_basis": "source",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-18",
          "summary": "Residents filed lawsuit against T5 with hearing scheduled for November 2026",
          "source_url": "https://www.thebrockovichreport.com/p/dont-underestimate-a-55-community",
          "source_tier": 4
        },
        {
          "status": "approved",
          "effective_at": "2026-09-10",
          "date_basis": "source",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-10",
          "summary": "T5 Grayslake campus planned to include 11 buildings totaling 6.75 million square feet",
          "source_url": "https://patch.com/illinois/grayslake/lake-county-approves-8-month-data-center-moratorium",
          "source_tier": 1
        },
        {
          "status": "approved",
          "effective_at": "2026-09-10",
          "date_basis": "source",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-10",
          "summary": "T5 Grayslake issued its first building permit for 800,000 square foot data center on 473 acre site",
          "source_url": "https://patch.com/illinois/grayslake/lake-county-approves-8-month-data-center-moratorium",
          "source_tier": 1
        },
        {
          "status": "approved",
          "effective_at": "2026-09-04",
          "date_basis": "source",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-04",
          "summary": "Grayslake Data Center received first permit in $18 billion T5 development",
          "source_url": "https://patch.com/illinois/crystallake/18b-data-center-deal-teen-siblings-killed-dui-crash-juvenile-bicyclist",
          "source_tier": 4
        },
        {
          "status": "permitting",
          "effective_at": "2026-09-01",
          "date_basis": "content",
          "date_precision": "day",
          "planned": false,
          "source_date": null,
          "summary": "T5 and the village of Grayslake are moving forward with a data center development that has received its first permit in what is described as an $18 billion development, while a resident lawsuit is ongoing.",
          "source_url": "https://www.villageofgrayslake.com/",
          "source_tier": 1
        },
        {
          "status": "approved",
          "effective_at": "2026-08-30",
          "date_basis": "source",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-08-30",
          "summary": "T5 @ Chicago IV data center campus was given approvals in 2024 and 2025 by the Grayslake Village Board",
          "source_url": "https://www.lakemchenryscanner.com/2026/08/30/lawmaker-says-grayslake-mega-data-center-should-not-proceed-without-answers-on-power-water-and-noise/",
          "source_tier": 4
        }
      ]
    },
    {
      "slug": "tierpoint-chicago-il",
      "name": "TierPoint Chicago Campus (Polk / West Franklin Park)",
      "summary": "TierPoint lists 2 data centers at Chicago, Illinois among the sites it operates.",
      "state": "IL",
      "city": "Chicago",
      "county": "Cook County",
      "status": "operational",
      "developer": "TierPoint",
      "capacity_mw": null,
      "latitude": 41.871616,
      "longitude": -87.642825,
      "location_precision": "address",
      "location_source": "https://www.tierpoint.com/data-centers/illinois/chicago-polk/",
      "location_verified_at": "2026-09-14",
      "coordinate_source": "TierPoint Chicago Polk (601 W Polk St) specification",
      "location_last_verified": "2026-09-14",
      "site_address": "601 W Polk St, Chicago, IL 60607",
      "site_address_source_url": "https://www.tierpoint.com/data-centers/illinois/chicago-polk/",
      "published": "2026-09-14",
      "last_verified": "2026-10-26",
      "cooling_type": "not_disclosed",
      "cooling_type_source_url": null,
      "cooling_fluid": null,
      "cooling_fluid_source_url": null,
      "developer_source_url": null,
      "contractor": null,
      "contractor_source_url": null,
      "site_acres": null,
      "site_acres_disclosed_as": "not_disclosed",
      "site_acres_source_url": null,
      "power_source": null,
      "power_source_url": null,
      "interconnection_status": "not_disclosed",
      "interconnection_source_url": null,
      "water_measure": null,
      "state_permit_status": null,
      "state_permit_status_source_url": null,
      "state_permit_status_disclosed_as": "not_disclosed",
      "state_permit_status_as_of": null,
      "state_permit_status_last_verified": null,
      "buildings": 2,
      "buildings_basis": "operator page",
      "buildings_source_url": "https://www.tierpoint.com/data-centers/illinois/chicago-polk/",
      "buildings_verified_at": "2026-10-26",
      "record_url": "https://datacenterrecord.org/projects/tierpoint-chicago-il",
      "sources": [
        {
          "title": "TierPoint: Browse our data centers",
          "url": "https://www.tierpoint.com/data-centers/",
          "publisher": "TierPoint",
          "date": "2026-09-14",
          "source_tier": 2
        }
      ],
      "use_types": [
        {
          "use_type": "not_disclosed",
          "share_percent": null,
          "source_url": null
        }
      ],
      "serves": {
        "tenants": [],
        "tenancy": "not_disclosed",
        "local_service_commitments": [],
        "source_url": null
      },
      "status_history": [
        {
          "status": "operational",
          "effective_at": "2026-09-14",
          "date_basis": "read",
          "date_precision": "day",
          "planned": false,
          "source_date": "2026-09-14",
          "summary": "TierPoint lists TierPoint Chicago - Polk Data Center, TierPoint Chicago , West Data Center at Chicago, Illinois on its own page of data center locations, read September 14, 2026.",
          "source_url": "https://www.tierpoint.com/data-centers/",
          "source_tier": 2
        }
      ]
    }
  ]
}
