{"city":"Markham","claims":[{"accessed_date":"2026-10-05","assertion_id":"pub-ontario_a-on-135-1","attribute":"public_location","capacity_basis":null,"capacity_type":null,"category":"power","claim_kind":"reported","evidence_date":"2011-12","evidence_date_precision":"month","facility_lifecycle_filter_eligible":false,"numeric_value":null,"phase":null,"qualifier":null,"scope":"facility","source_ids":["pub-src-ontario_a-ona-187"],"status":"historical","status_subject":"published_location_reference","unit":null,"value":"State Group identifies an IBM data-centre expansion at 3600 Steeles in Markham, completed in phases in March and December 2011. Electrical work included transformers, diesel generation, switchboards and UPS."},{"accessed_date":"2026-10-05","assertion_id":"pub-ontario_a-on-135-2","attribute":"cooling","capacity_basis":null,"capacity_type":null,"category":"cooling","claim_kind":"reported","evidence_date":"2011-12","evidence_date_precision":"month","facility_lifecycle_filter_eligible":false,"numeric_value":null,"phase":null,"qualifier":null,"scope":"facility","source_ids":["pub-src-ontario_a-ona-187"],"status":"historical","status_subject":"cooling_system_at_stated_scope","unit":null,"value":"The contractor lists chillers, cooling towers, pumps and associated piping in the 2011 mechanical expansion."}],"disposition":"identifiable_facility","field_provenance":{"city":["pub-src-ontario_a-ona-187"],"disposition":["pub-src-ontario_a-ona-187"],"name":["pub-src-ontario_a-ona-187"],"operator":["pub-src-ontario_a-ona-187"],"province":["pub-src-ontario_a-ona-187"],"record_kind":["pub-src-ontario_a-ona-187"]},"interpretation":"Research record, not a building count. Campus and phase overlap may exist; do not add capacity values.","name":"IBM 3600 Steeles data centre (historical)","operator":"IBM (historical owner/client)","placement":{"accessed_date":"2026-10-05","city":"Markham","gazetteer_id":"6066513","gazetteer_modified_date":"2026-08-02","latitude":43.8668,"license":"CC BY 4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","longitude":-79.2663,"matching_method":"Exact normalized city name and province; unique populated-place match","note":"Derived city center, rounded to four decimals. The marker is not a building, entrance, campus or parcel location.","placement_kind":"city_reference","precision_label":"City reference only; not the facility","provenance_url":"https://www.geonames.org/6066513/","provider":"GeoNames","source_url":"https://download.geonames.org/export/dump/CA.zip"},"province":"Ontario","record_id":"on-135","record_kind":"historical"}