DOE's environmental determination for Ward 250 (signed 22 April 2026) describes the Ward250 facility as a 'Reactor Complex and Fuel Laboratory' inside a security fence of about 2 acres, within the state-run Utah San Rafael Energy Research Center, a 20.6-acre site near Orangeville; the reactor complex is about 55 feet high and made of modular buildings on engineered foundations tied only to existing lab utilities. A joint update from the state lab and Valar, run in ETV News on 23 January 2026, said local contractors had moved and crushed about 40,000 cubic yards of material and poured over 4,000 cubic yards of concrete for foundations of the Ward 250 test reactor and a fuel fabrication facility. ETV (24 August 2026), reporting a business-chamber tour on 19 August, said the reactor was now enclosed in cement bricks that hide it from view, and described an operations center and exhaust equipment designed to detect radioactive particles and shut the exhaust off. Valar's open job posts (29 September 2026) staff both 'the reactor plant' and a 'pilot TRISO fuel fabrication facility' in Orangeville. Other things at or beside the lab are recorded elsewhere: Valar's proposed 10 MW gas-fired test heater, approved only for design (gov-014); other nuclear companies courting the lab (gov-031); the 112-acre county parcel next door that Valar is buying (gov-022, loc-014); and the unauthorized sewer tie-in (loc-015).

• NEPA Determination DOE-ID-26-005: Valar Ward250 Research Reactor (U.S. Department of Energy, Office of Nuclear Energy, 2026-04-22) primary government “comprises the Reactor Complex and Fuel Laboratory enclosed within a security-fenced area”
• Rapid construction from local contractors at Valar Atomics (USREL press release, Energy Corner) (Utah San Rafael Energy Lab and Valar Atomics, via ETV News, 2026-01-23) primary government “The site will house Valar’s fuel fabrication facility and the WARD 250 test reactor.”
• Emery County Business Chamber gets an up-close look at Valar Atomics progress (ETV News (Stephanie Olsen), 2026-08-24) news
• Valar Atomics job board (public Greenhouse feed, 92 postings) (Valar Atomics (via Greenhouse), 2026-09-28) primary company “Operators may be assigned to either the reactor plant or the pilot fuel fabrication facility”