Data Centers Atlas: Wyoming

Dated record: Project Tembo

Recorded event date: August 13, 2026

The original Laramie County action history records August 13, 2026 approval of postponing review of the Tembo HUB 1 office support request. The passed action concerns postponement rather than computing commissioning, approval of the full campus or an accomplished later office permit.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

laramiecounty.legistar.com

Public concern on the record: Meta Cheyenne Data Center

U.S. Representative Harriet Hageman requested information from Meta about a reported Cheyenne reclaimed-water incident, contractor discharges and public communication. The utility's separate advisory described an unnamed industrial discharge source. These are documented questions and source accounts, not Atlas findings of causation, drinking-water contamination or a final case outcome.

Record status: unknown. The current outcome of the information request and underlying discharge dispute is unknown in this bounded review. Company challenges, requested hearing or refund and scheduled reuse-irrigation resumption do not establish a final ruling, individual permit reinstatement, measured health impact or resolution of every concern.

Event date: July 9, 2026

Source publication date: July 9, 2026

Disposition date: Not established

Concern sources checked: October 18, 2026

The original signed letter is dated July 9, 2026 and the official release reports the request that day. Earlier incident and permit actions have separate dates; no exact appeal filing or later disposition day is inferred. The official release is published July 9, 2026. First public posting of the signed letter is unknown. WyoFile published the later company-position report July 20; that day is not the original appeal publication or filing day.

Raised or recorded by U.S. Representative Harriet Hageman.

Company statement reported by an outlet

Meta disputed the causal and procedural basis of the utility action and requested a hearing and refund, according to WyoFile. These are reported company arguments, not a ruling, independently verified testing or resolution of the dispute.

The original report concerns the same Cheyenne discharge incident. It presents Meta's appeal arguments and spokesperson statement, not an express response to every question in the congressional letter. July 20 is outlet publication; the original appeal was not inspected.

Response publication date: July 20, 2026

Response sources checked: October 18, 2026

Counts describe attributed documentation, not harm or severity. Allegations, procedural outcomes and published replies retain their separate scope.

Dated record: Meta Cheyenne Data Center

Recorded event date: July 2, 2024

Meta published its Cheyenne campus announcement on July 2, 2024. The announcement describes future completion and construction expectations. July 2 is the announcement date, not a manufactured exact construction start or opening day.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

datacenters.atmeta.com

Dated record: NCAR-Wyoming Supercomputing Center

Recorded event date: October 15, 2012

The original UCAR historical fact sheet records October 15, 2012 as the Cheyenne center grand opening. This is a ceremonial opening date rather than an independently established exact first computing or physical commissioning day.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

news.ucar.edu