{
  "schema_version": 1,
  "source_compilation_context": {
    "wi": {
      "attribution": {
        "inventory": {
          "name": "Compute Atlas",
          "creator": "Edward Kubiak",
          "url": "https://www.compute-atlas.com/api",
          "license": "CC BY 4.0",
          "license_url": "https://creativecommons.org/licenses/by/4.0/",
          "snapshot_url": "https://www.compute-atlas.com/api/facilities",
          "retrieved": "2026-10-14",
          "sha256": "79ad432dab7c128e428234c9d0dd40933114b415a4a5d697db00095637d50f37",
          "changes": "Added provenance, publication-date distinctions, display-safe wording, quarantine flags and state partitioning. Original source records retained locally."
        },
        "counties": "U.S. Census Bureau county boundaries (public domain)",
        "research": "Field-specific source context. See the linked source and limits on each record."
      },
      "source_data_url": "https://datacentersatlas.com/data/wi.json",
      "updated": "2026-10-25"
    }
  },
  "scope": "Retained county context, which can be broad or unresolved. No parcel or municipal jurisdiction is inferred. Research records retain their sources, dates and location limits. Counts are not a census of operating buildings. Company name links alone do not establish ownership or operation.",
  "collection": {
    "kind": "counties",
    "key": "55089",
    "label": "Ozaukee County, Wisconsin"
  },
  "records": [
    {
      "id": "iscorp-mequon-mqs5-wi",
      "state": "wi",
      "kind": "facility",
      "name": "ISCorp Mequon Data Center (MQS5)",
      "group": "operating",
      "status": "Reported service",
      "raw_status": "operating",
      "status_field": "current_status",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "Ozaukee"
      ],
      "city": "Mequon",
      "address": "",
      "who": "",
      "end_user": "",
      "mw": null,
      "power": "",
      "power_note": "",
      "investment": "",
      "jobs": "",
      "acres": null,
      "utility": "",
      "water": "",
      "incentives": "",
      "note": "Manual source context is available for this inherited inventory record. The inventory label and approximate geography are retained for discovery. This is not certification of current operation, ownership, a separate physical building, technical capacity or a precise parcel. Missing fields remain unknown. ISCorp MQS5 space categories and dynamic-counter hold. 8000raisedand20000operationsareasnotnecessarilydisjointtosum28k. Contactaddressnotindependentparcelfootprint.0percentdynamiccountersnotzeroactualuptime;100percentnarrativehistoricaluptimeclaimnotindependentlyobserved. TierIIIplus/SSAE18operatorclaimsnotcertifieraudit. No numericITMWoropeningdate. Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building.",
      "date": "",
      "events": [],
      "timeline": [],
      "opened": "",
      "tier": "",
      "sources": [
        {
          "url": "https://www.iscorp.com/iscorp-facilities/",
          "host": "iscorp.com",
          "date": "",
          "published": "",
          "checked": "2026-10-14",
          "date_kind": "publication date not established",
          "label": "Reviewed source"
        }
      ],
      "loc": {
        "lat": 43.38393,
        "lng": -87.95149,
        "precision": "county",
        "basis": "Shown at county level only. The dot is placed inside the county for the map and is not the site, its address or a parcel."
      },
      "reviewed_evidence": [
        {
          "overlay": "operator-primary-review-round10-2026-10-14.json",
          "scope": "ISCorp MQS5 space categories and dynamic-counter hold",
          "fields": {
            "operator": "ISCorp",
            "code": "MQS5",
            "locality": "north of Milwaukee, Wisconsin",
            "raised_floor_sqft": 8000,
            "operations_area_sqft": 20000,
            "published_contact_address": "10325 NorthPortWashingtonRoad, Mequon, Wisconsin53092"
          },
          "notes": [
            "8000raisedand20000operationsareasnotnecessarilydisjointtosum28k. Contactaddressnotindependentparcelfootprint.0percentdynamiccountersnotzeroactualuptime;100percentnarrativehistoricaluptimeclaimnotindependentlyobserved. TierIIIplus/SSAE18operatorclaimsnotcertifieraudit. No numericITMWoropeningdate.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://www.iscorp.com/iscorp-facilities/",
              "host": "iscorp.com",
              "date": "",
              "published": "",
              "checked": "2026-10-14",
              "date_kind": "publication date not established",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "Codex 3 research cohort 25",
          "scope": "ISCorp current facilities page explicitly identifies MQS5 in Mequon and describes customer data hosted there and ongoing managed cloud and colocation services. Reported service applies to that exact named facility account. Company uptime claims, certifications, advertised space and technical specifications are not independently verified or promoted. No precise opening date, street reference or provider role is changed.",
          "fields": {
            "current_stage_evidence": {
              "outcome": "current_named_mqs5_customer_data_service_account",
              "scope": "ISCorp current facilities page explicitly identifies MQS5 in Mequon and describes customer data hosted there and ongoing managed cloud and colocation services. Reported service applies to that exact named facility account. Company uptime claims, certifications, advertised space and technical specifications are not independently verified or promoted. No precise opening date, street reference or provider role is changed."
            }
          },
          "notes": [
            "ISCorp current facilities page explicitly identifies MQS5 in Mequon and describes customer data hosted there and ongoing managed cloud and colocation services. Reported service applies to that exact named facility account. Company uptime claims, certifications, advertised space and technical specifications are not independently verified or promoted. No precise opening date, street reference or provider role is changed.",
            "The review preserves existing identity, roles, locations, jurisdictions, quantities and physical opening fields. Source publication, checked dates and physical milestones remain distinct."
          ],
          "sources": [
            {
              "url": "https://www.iscorp.com/iscorp-facilities/",
              "host": "www.iscorp.com",
              "published": "",
              "date": "",
              "checked": "2026-10-23",
              "label": "Reviewed operator source"
            }
          ],
          "checked": "2026-10-23",
          "whole_record_certified": false
        }
      ],
      "manual_source_reviewed": true,
      "whole_record_certified": false,
      "field_evidence_present": true,
      "inventory_label_retained": true,
      "precision_label": "Exact site not published; shown at county level",
      "summary": "Mequon · Ozaukee · Source context reviewed",
      "status_scope": "ISCorp current facilities page explicitly identifies MQS5 in Mequon and describes customer data hosted there and ongoing managed cloud and colocation services. Reported service applies to that exact named facility account. Company uptime claims, certifications, advertised space and technical specifications are not independently verified or promoted. No precise opening date, street reference or provider role is changed.",
      "location_display": {
        "policy": "reviewed-map-references-2026-10-23",
        "decision": "withheld_unreviewed_point",
        "scope": "The available point evidence does not establish a supported site location. No site pin, nearby distance or aerial destination is published. The original coordinate and its provenance remain in research history.",
        "county_display": "55089"
      }
    },
    {
      "id": "stargate-port-washington-wi",
      "state": "wi",
      "kind": "facility",
      "name": "Stargate Lighthouse Campus",
      "group": "building",
      "status": "Reported construction",
      "raw_status": "under construction",
      "status_field": "current_status",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "Ozaukee"
      ],
      "city": "Port Washington",
      "address": "",
      "who": "",
      "end_user": "",
      "mw": null,
      "power": "",
      "power_note": "",
      "investment": "",
      "jobs": "",
      "acres": null,
      "utility": "",
      "water": "",
      "incentives": "",
      "note": "Manual source context is available for this inherited inventory record. The inventory label and approximate geography are retained for discovery. This is not certification of current operation, ownership, a separate physical building, technical capacity or a precise parcel. Missing fields remain unknown. named operator source. Nearly1GWis AI capacity, not exact measured utility load.4.5GWStargatepartnership and40BcombinedFrontierinvestment are broader scopes. Proposed dedicated utility rate not reviewed approved tariff; no guarantee other ratepayers unaffected. Renewable generation is separate. Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building. Wisconsin named certificate register with scoped building descriptions. Register is dated October31,2025; guidance law cut-off June25,2026 is not updated certificate verification. Certification not completed building or dollar tax benefit paid. Degas-to-Meta exact legal-entity alias requires crosswalk; do not silently substitute. Epic utility building scope not entire campus.",
      "date": "",
      "events": [
        [
          "2025-12-18",
          "The Weitz Company published its named Lighthouse construction account December 18, 2025. This is the publication date of the contractor account and does not establish an exact excavation start, completion, delivered capacity or operation."
        ]
      ],
      "timeline": [],
      "opened": "",
      "tier": "",
      "sources": [
        {
          "url": "https://vantage-dc.com/news/openai-oracle-and-vantage-data-centers-announce-stargate-data-center-site-in-wisconsin/",
          "host": "vantage-dc.com",
          "date": "2025-10-22",
          "published": "2025-10-22",
          "checked": "2026-10-14",
          "date_kind": "publication",
          "label": "Reviewed source"
        },
        {
          "url": "https://www.revenue.wi.gov/Pages/FAQS/ExemptionforQualifiedDataCenter.aspx",
          "host": "revenue.wi.gov",
          "date": "2026-06-25",
          "published": "2026-06-25",
          "checked": "2026-10-14",
          "date_kind": "publication",
          "label": "Reviewed source"
        },
        {
          "url": "https://vantage-dc.com/data-center-locations/north-america/port-washington-wisconsin",
          "host": "vantage-dc.com",
          "published": "",
          "date": "",
          "checked": "2026-10-23",
          "label": "Reviewed operator source"
        },
        {
          "url": "https://www.weitz.com/groundbreaking-marks-new-era-for-data-center-infrastructure-in-wisconsin/",
          "host": "www.weitz.com",
          "published": "2025-12-18",
          "date": "2025-12-18",
          "checked": "2026-10-23",
          "label": "Reviewed operator source"
        }
      ],
      "loc": {
        "lat": 43.39307,
        "lng": -87.96147,
        "precision": "county",
        "basis": "Shown at county level only. The dot is placed inside the county for the map and is not the site, its address or a parcel."
      },
      "reviewed_evidence": [
        {
          "overlay": "remaining-operators-review-round5-2026-10-14.json",
          "scope": "named operator source",
          "fields": {
            "campus_name": "Lighthouse",
            "planned_investment_usd_min_exclusive": 15000000000,
            "planned_data_centers": 4,
            "planned_ai_capacity_gw_approx": 1,
            "scheduled_completion_year": 2028,
            "total_acres": 672,
            "development_acres": 500,
            "regional_infrastructure_commitment_usd_min": 175000000,
            "forecast_construction_jobs_min_exclusive": 4000,
            "forecast_long_term_jobs_min_exclusive": 1000
          },
          "notes": [
            "Nearly1GWis AI capacity, not exact measured utility load.4.5GWStargatepartnership and40BcombinedFrontierinvestment are broader scopes. Proposed dedicated utility rate not reviewed approved tariff; no guarantee other ratepayers unaffected. Renewable generation is separate.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://vantage-dc.com/news/openai-oracle-and-vantage-data-centers-announce-stargate-data-center-site-in-wisconsin/",
              "host": "vantage-dc.com",
              "date": "2025-10-22",
              "published": "2025-10-22",
              "checked": "2026-10-14",
              "date_kind": "publication",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "government-primary-review-round7-2026-10-14.json",
          "scope": "Wisconsin named certificate register with scoped building descriptions",
          "fields": {
            "certification_register_as_of": "2025-10-31",
            "listed_certifications": [
              {
                "entity": "Epic Hosting LLC",
                "date": "2024-09-24",
                "location": "Milky Way,Verona,WI",
                "scope": "Utility Building3and additions"
              },
              {
                "entity": "Degas LLC",
                "date": "2025-02-18",
                "location": "County RoadA,Beaver Dam,WI",
                "scope": "to be constructed"
              },
              {
                "entity": "Oracle America Cloud Services LLC,formerly Green Chile Ventures LLC",
                "date": "2025-10-31",
                "location": "Port Washington,WI",
                "scope": "four buildings at531,533,701and723E Lake Drive"
              }
            ]
          },
          "notes": [
            "Register is dated October31,2025; guidance law cut-off June25,2026 is not updated certificate verification. Certification not completed building or dollar tax benefit paid. Degas-to-Meta exact legal-entity alias requires crosswalk; do not silently substitute. Epic utility building scope not entire campus.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://www.revenue.wi.gov/Pages/FAQS/ExemptionforQualifiedDataCenter.aspx",
              "host": "revenue.wi.gov",
              "date": "2026-06-25",
              "published": "2026-06-25",
              "checked": "2026-10-14",
              "date_kind": "publication",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "Codex 3 research cohort 25",
          "scope": "The Weitz Company December 18, 2025 account identifies its construction work on the named Lighthouse campus in Port Washington and describes building the project. The current Vantage campus page still describes completion in 2028 as scheduled. Reported construction is the bounded contractor account, not present operation, completion of all buildings or independent verification of current progress. The release describes future environmental designs and benefits, not measured outcomes. The City page stopped at robots HTTP 403 and the project microsite stopped at a robots redirect; cached construction updates are not adopted.",
          "fields": {
            "current_stage_evidence": {
              "outcome": "named_contractor_reported_construction_with_future_completion_target",
              "scope": "The Weitz Company December 18, 2025 account identifies its construction work on the named Lighthouse campus in Port Washington and describes building the project. The current Vantage campus page still describes completion in 2028 as scheduled. Reported construction is the bounded contractor account, not present operation, completion of all buildings or independent verification of current progress. The release describes future environmental designs and benefits, not measured outcomes. The City page stopped at robots HTTP 403 and the project microsite stopped at a robots redirect; cached construction updates are not adopted."
            }
          },
          "notes": [
            "The Weitz Company December 18, 2025 account identifies its construction work on the named Lighthouse campus in Port Washington and describes building the project. The current Vantage campus page still describes completion in 2028 as scheduled. Reported construction is the bounded contractor account, not present operation, completion of all buildings or independent verification of current progress. The release describes future environmental designs and benefits, not measured outcomes. The City page stopped at robots HTTP 403 and the project microsite stopped at a robots redirect; cached construction updates are not adopted.",
            "The review preserves existing identity, roles, locations, jurisdictions, quantities and physical opening fields. Source publication, checked dates and physical milestones remain distinct."
          ],
          "sources": [
            {
              "url": "https://vantage-dc.com/data-center-locations/north-america/port-washington-wisconsin",
              "host": "vantage-dc.com",
              "published": "",
              "date": "",
              "checked": "2026-10-23",
              "label": "Reviewed operator source"
            },
            {
              "url": "https://www.weitz.com/groundbreaking-marks-new-era-for-data-center-infrastructure-in-wisconsin/",
              "host": "www.weitz.com",
              "published": "2025-12-18",
              "date": "2025-12-18",
              "checked": "2026-10-23",
              "label": "Reviewed operator source"
            }
          ],
          "checked": "2026-10-23",
          "whole_record_certified": false
        }
      ],
      "manual_source_reviewed": true,
      "whole_record_certified": false,
      "field_evidence_present": true,
      "inventory_label_retained": true,
      "precision_label": "Exact site not published; shown at county level",
      "summary": "Port Washington · Ozaukee · Source context reviewed",
      "status_scope": "The Weitz Company December 18, 2025 account identifies its construction work on the named Lighthouse campus in Port Washington and describes building the project. The current Vantage campus page still describes completion in 2028 as scheduled. Reported construction is the bounded contractor account, not present operation, completion of all buildings or independent verification of current progress. The release describes future environmental designs and benefits, not measured outcomes. The City page stopped at robots HTTP 403 and the project microsite stopped at a robots redirect; cached construction updates are not adopted.",
      "event_evidence": [
        {
          "date": "2025-12-18",
          "text": "The Weitz Company published its named Lighthouse construction account December 18, 2025. This is the publication date of the contractor account and does not establish an exact excavation start, completion, delivered capacity or operation.",
          "kind": "announced",
          "sources": [
            {
              "url": "https://www.weitz.com/groundbreaking-marks-new-era-for-data-center-infrastructure-in-wisconsin/",
              "host": "www.weitz.com",
              "published": "2025-12-18",
              "date": "2025-12-18",
              "checked": "2026-10-23",
              "label": "Reviewed operator source"
            }
          ]
        }
      ],
      "location_display": {
        "policy": "reviewed-map-references-2026-10-23",
        "decision": "withheld_unreviewed_point",
        "scope": "The available point evidence does not establish a supported site location. No site pin, nearby distance or aerial destination is published. The original coordinate and its provenance remain in research history.",
        "county_display": "55089"
      }
    }
  ],
  "compilation_license": "withheld_pending_owner_decision"
}