{
  "schema_version": 1,
  "source_compilation_context": {
    "md": {
      "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/md.json",
      "updated": "2026-10-24"
    }
  },
  "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": "24031",
    "label": "Montgomery County, Maryland"
  },
  "records": [
    {
      "id": "atmosphere-dickerson-montgomery-md",
      "state": "md",
      "kind": "facility",
      "name": "Dickerson Data Center",
      "group": "unknown",
      "status": "Status unclear",
      "raw_status": "",
      "status_field": "",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "Montgomery"
      ],
      "city": "Dickerson",
      "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. Personally read project-specific public context only; no whole-record certification. Regional, directory, legislative and membership sources do not verify an exact building.. 360 MWisplannedbasisundefined; formercoal 588 MWisgenerationnotIT. Requestedup-to 2 milliongallons/dayisPEAKwithdrawalapplicationnotapprovedallocationoractualuse.2016 coal-plantsettlementcoveredtwoplantsandisnotanAtmosphereDCfine. June 12 EO 109-26 sixmonths,July 28 Bill 19-26 E 18 months andZTA 26-01/Ordinance 20-35 prohibition are distinct reported instruments; originaltexts/scope/exceptionsneedreview. ArticlepublishedAugust 14 yet describesAugust 17 futureprohibition ascurrent,so noexactcurrentlegalityadoptedfromthisalone. FutureNovember 12/13 hearingandcourtchallengehavenoassumedoutcome. Existingindustry/EJconcernsarecontextnotmeasurednewcampusimpact. Later originals and observed outcomes take precedence; future dates have no assumed result. Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building. Original enacted/signed documents personally read; not court-outcome verification or whole-site operating certification.. No final adjudication, later rescission/amendment, project-specific grandfathering determination, power ESA or current operating status verified. Monthly demand wording preserved as printed, not converted toMWh, average use or criticalIT. Building-law18-monthsunset and zoning prohibition without printed sunset are distinct; no invented common expiration. Do not generalize County DPS or District Council zoning provisions to independently administered municipal permits/zoning without separate jurisdiction review. Higher-education exclusion does not by itself establish eligibility for any proposed commercial campus.",
      "date": "",
      "events": [],
      "timeline": [],
      "opened": "",
      "tier": "",
      "sources": [
        {
          "url": "https://natureforward.org/dickerson-data-center-montgomery-county-md-data-center-series-pt-5/",
          "host": "natureforward.org",
          "date": "2026-08-14",
          "published": "2026-08-14",
          "checked": "2026-10-14",
          "date_kind": "publication",
          "label": "Reviewed source"
        },
        {
          "url": "https://assets.montgomerycountymd.gov/files/2026-06/Executive%20Order%20109-26_0.pdf",
          "host": "assets.montgomerycountymd.gov",
          "date": "",
          "published": "",
          "checked": "2026-10-14",
          "date_kind": "publication date not established",
          "label": "Reviewed source"
        },
        {
          "url": "https://assets.montgomerycountymd.gov/files/2026-07/Ordinance%2020-35%20(ZTA%2026-01).pdf",
          "host": "assets.montgomerycountymd.gov",
          "date": "",
          "published": "",
          "checked": "2026-10-14",
          "date_kind": "publication date not established",
          "label": "Reviewed source"
        },
        {
          "url": "https://apps.montgomerycountymd.gov/ccllims/DownloadFilePage?FileName=2907_1_26953_Bill_19-26E_Signed_20260810.pdf",
          "host": "apps.montgomerycountymd.gov",
          "date": "",
          "published": "",
          "checked": "2026-10-14",
          "date_kind": "publication date not established",
          "label": "Reviewed source"
        },
        {
          "url": "https://apps.montgomerycountymd.gov/ccllims/BillDetailsPage?RecordId=2907",
          "host": "apps.montgomerycountymd.gov",
          "date": "",
          "published": "",
          "checked": "2026-10-14",
          "date_kind": "publication date not established",
          "label": "Reviewed source"
        }
      ],
      "loc": {
        "lat": 39.13626,
        "lng": -77.20478,
        "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": "regional-development-review-round34-2026-10-14.json",
          "scope": "Personally read project-specific public context only; no whole-record certification. Regional, directory, legislative and membership sources do not verify an exact building.",
          "fields": {
            "reported_context": "NatureForward advocacy article describes Atmosphere’s revisedfive-building 360 MWDickersonproposal, priorTerraEnergytwo-buildingapproval and county executive/legislative actions restricting new data centers.",
            "independently_verified_current_operating_status": null
          },
          "notes": [
            "360 MWisplannedbasisundefined; formercoal 588 MWisgenerationnotIT. Requestedup-to 2 milliongallons/dayisPEAKwithdrawalapplicationnotapprovedallocationoractualuse.2016 coal-plantsettlementcoveredtwoplantsandisnotanAtmosphereDCfine. June 12 EO 109-26 sixmonths,July 28 Bill 19-26 E 18 months andZTA 26-01/Ordinance 20-35 prohibition are distinct reported instruments; originaltexts/scope/exceptionsneedreview. ArticlepublishedAugust 14 yet describesAugust 17 futureprohibition ascurrent,so noexactcurrentlegalityadoptedfromthisalone. FutureNovember 12/13 hearingandcourtchallengehavenoassumedoutcome. Existingindustry/EJconcernsarecontextnotmeasurednewcampusimpact.",
            "Later originals and observed outcomes take precedence; future dates have no assumed result.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://natureforward.org/dickerson-data-center-montgomery-county-md-data-center-series-pt-5/",
              "host": "natureforward.org",
              "date": "2026-08-14",
              "published": "2026-08-14",
              "checked": "2026-10-14",
              "date_kind": "publication",
              "label": "Reviewed source"
            }
          ],
          "whole_record_certified": false
        },
        {
          "overlay": "regional-development-review-round34-2026-10-14.json",
          "scope": "Original enacted/signed documents personally read; not court-outcome verification or whole-site operating certification.",
          "fields": {
            "county": "Montgomery",
            "state": "MD",
            "executive_order": {
              "number": "109-26",
              "signed_and_effective": "2026-06-12",
              "pause_months": 6,
              "scope": "DPS acceptance, consideration and processing of permit applications related to broadly defined Data Center; includes proposed Cable Communications System used primarily for computing",
              "threshold_mw_stated": null,
              "sunset": "Earlier of six months from effective date or rescission; another six months requires further executive order",
              "extension_or_rescission_independently_reviewed": false
            },
            "enacted_building_law": {
              "bill": "19-26E",
              "chapter": 24,
              "year": 2026,
              "council_enactment": "2026-07-28",
              "executive_approval_and_effective": "2026-08-10",
              "signed_page_visually_checked": true,
              "sunset_months_after_effective": 18,
              "printed_exact_expiry_date": null,
              "definition_threshold_mw": 25,
              "threshold_basis_exact": "aggregate monthly electricity demand",
              "prohibited_actions": "Director must not accept, review or issue a building or grading permit for a Data Center application during effective period",
              "transition": "Applies to conditional-use applications filed before or after effect, pending OZAH review or approved by OZAH but without DPS permit",
              "definition_exclusions": [
                "Primarily manufacturing",
                "Quantum computing research",
                "Biomedical research",
                "Medical care",
                "Higher education institution approved by Maryland Higher Education Commission"
              ]
            },
            "zoning_ordinance": {
              "number": "20-35",
              "zta": "26-01",
              "adopted": "2026-07-28",
              "effective": "2026-08-17",
              "definition_threshold_mw": 25,
              "threshold_basis_exact": "aggregate monthly electricity demand",
              "mechanism": "Data Center use-table cells blank across all zones; proposed conditional-use permissions removed",
              "exclusions_same_as_building_law": true,
              "transition": "Applies to applications without DPS building permit before ordinance effective date",
              "printed_sunset": null,
              "court_disposition_or_later_amendment_verified": false,
              "printed_jurisdiction": "County Council sitting as District Council for that portion of the Maryland-Washington Regional District within Montgomery County"
            },
            "required_correction": "Do not flatten three instruments into a July28effective blanket ban on all server rooms. Later building/zoning definitions have25MWthreshold and exclusions, unlike broad EO. Deleted double-bracket draft conditions are not adopted standards."
          },
          "notes": [
            "No final adjudication, later rescission/amendment, project-specific grandfathering determination, power ESA or current operating status verified.",
            "Monthly demand wording preserved as printed, not converted toMWh, average use or criticalIT.",
            "Building-law18-monthsunset and zoning prohibition without printed sunset are distinct; no invented common expiration.",
            "Do not generalize County DPS or District Council zoning provisions to independently administered municipal permits/zoning without separate jurisdiction review. Higher-education exclusion does not by itself establish eligibility for any proposed commercial campus.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://assets.montgomerycountymd.gov/files/2026-06/Executive%20Order%20109-26_0.pdf",
              "host": "assets.montgomerycountymd.gov",
              "date": "",
              "published": "",
              "checked": "2026-10-14",
              "date_kind": "publication date not established",
              "label": "Reviewed source"
            },
            {
              "url": "https://assets.montgomerycountymd.gov/files/2026-07/Ordinance%2020-35%20(ZTA%2026-01).pdf",
              "host": "assets.montgomerycountymd.gov",
              "date": "",
              "published": "",
              "checked": "2026-10-14",
              "date_kind": "publication date not established",
              "label": "Reviewed source"
            },
            {
              "url": "https://apps.montgomerycountymd.gov/ccllims/DownloadFilePage?FileName=2907_1_26953_Bill_19-26E_Signed_20260810.pdf",
              "host": "apps.montgomerycountymd.gov",
              "date": "",
              "published": "",
              "checked": "2026-10-14",
              "date_kind": "publication date not established",
              "label": "Reviewed source"
            },
            {
              "url": "https://apps.montgomerycountymd.gov/ccllims/BillDetailsPage?RecordId=2907",
              "host": "apps.montgomerycountymd.gov",
              "date": "",
              "published": "",
              "checked": "2026-10-14",
              "date_kind": "publication date not established",
              "label": "Reviewed source"
            }
          ],
          "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": "Dickerson · Montgomery · Source context reviewed",
      "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": "24031"
      }
    },
    {
      "id": "priseda-prosperity-drive-silver-spring-md",
      "state": "md",
      "kind": "facility",
      "name": "12401 Prosperity Drive Data Center",
      "group": "unknown",
      "status": "Status unclear",
      "raw_status": "",
      "status_field": "",
      "crypto": false,
      "type": "Data center (inventory classification)",
      "counties": [
        "Montgomery"
      ],
      "city": "Silver Spring",
      "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. Silver Spring broker project phases and separate studied capacity. 35.2=4+20+11.2futureGROSSpower,notcurrentIT.49designand100studyuncommittednotenergizedcapacitysum.214kgrossincludesavailabledatahall/officefloors,notallwhitespace.179800thermalstorageand315000makeupgallonsnotannualwithdrawals. BrokerprojectiondisclaimerandnoNDAdetailsaccessed. Noactualapprovedairpermitorenergizationverified. 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.pdcproperty-silverspring.com/",
          "host": "pdcproperty-silverspring.com",
          "date": "",
          "published": "",
          "checked": "2026-10-14",
          "date_kind": "publication date not established",
          "label": "Reviewed source"
        }
      ],
      "loc": {
        "lat": 39.15042,
        "lng": -77.22024,
        "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": "Silver Spring broker project phases and separate studied capacity",
          "fields": {
            "publication_role": "JLL property broker/manager offering",
            "property": "PDC Property",
            "address": "12401 Prosperity Drive, Silver Spring, Maryland",
            "facility_sqft": 214000,
            "data_hall_available_sqft_approx": 50000,
            "office_flex_available_sqft_approx": 25000,
            "phased_planned_gross_power_mw": 35.2,
            "phases": [
              {
                "power_mw": 4,
                "source": "onsite natural gas island",
                "target": "2027-Q1"
              },
              {
                "power_mw": 20,
                "source": "onsite natural gas island",
                "target": "2027-Q2"
              },
              {
                "power_mw": 11.2,
                "source": "grid",
                "target": "2027-Q4"
              }
            ],
            "additional_grid_mw_design_engineering": 49,
            "additional_onsite_gas_mw_under_study": 100
          },
          "notes": [
            "35.2=4+20+11.2futureGROSSpower,notcurrentIT.49designand100studyuncommittednotenergizedcapacitysum.214kgrossincludesavailabledatahall/officefloors,notallwhitespace.179800thermalstorageand315000makeupgallonsnotannualwithdrawals. BrokerprojectiondisclaimerandnoNDAdetailsaccessed. Noactualapprovedairpermitorenergizationverified.",
            "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building."
          ],
          "sources": [
            {
              "url": "https://www.pdcproperty-silverspring.com/",
              "host": "pdcproperty-silverspring.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 50",
          "scope": "The original marketed property page credited to JLL identifies the named Prosperity Drive facility and leasable data hall space, while its power delivery schedule is explicitly future 2027. Property staffing, on site carrier advertising and available space are not proof of exact current commissioned computing service. The page is brokerage marketing rather than a verified operator delivery statement. Current physical computing stage remains unclear, with no future power quantity promoted.",
          "fields": {
            "current_stage_evidence": {
              "outcome": "property_marketing_and_future_power_not_current_commissioned_compute",
              "scope": "The original marketed property page credited to JLL identifies the named Prosperity Drive facility and leasable data hall space, while its power delivery schedule is explicitly future 2027. Property staffing, on site carrier advertising and available space are not proof of exact current commissioned computing service. The page is brokerage marketing rather than a verified operator delivery statement. Current physical computing stage remains unclear, with no future power quantity promoted."
            }
          },
          "notes": [
            "The original marketed property page credited to JLL identifies the named Prosperity Drive facility and leasable data hall space, while its power delivery schedule is explicitly future 2027. Property staffing, on site carrier advertising and available space are not proof of exact current commissioned computing service. The page is brokerage marketing rather than a verified operator delivery statement. Current physical computing stage remains unclear, with no future power quantity promoted.",
            "Existing location, jurisdiction, provider roles, identities, quantities and physical opening dates remain unchanged. Proposal and administrative evidence do not certify computing operation."
          ],
          "sources": [
            {
              "url": "https://www.pdcproperty-silverspring.com/",
              "host": "www.pdcproperty-silverspring.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": "Silver Spring · Montgomery · Source context reviewed",
      "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": "24031"
      }
    }
  ],
  "compilation_license": "withheld_pending_owner_decision"
}