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Safety Related Issues

Who authorizes what, the safety documents and their numbers, environmental review, radioactive material, waste, transport, emergency planning, incidents, independent critiques.

recordconfirmed Between March and July 2026 Valar's NRC-suit post, 'CAT scan' claim intact, was tagged asking search engines not to list it
2026 · orig-061 · Valar Atomics

Valar's April 7, 2025 post 'Valar Atomics is Suing the NRC' contains the claim that holding Ward One's spent fuel for five minutes gives the same exposure as a CAT scan (orig-017). Read in late September 2026, the page carries a robots meta tag, 'noindex, nofollow', which asks search engines not to list it, and the site's page data marks it 'disableIndex: true'; no other Valar library post carries the tag. Internet Archive copies of the page from April 8, 2025 through March 23, 2026 have no such tag; copies from July 22 and August 25, 2026 have it. In every copy the claim's text is unchanged, and no correction or note has been added. The post is still listed in Valar's own library, so visitors to the site can still find it. The tag appeared some time after March 23, 2026. The record does not show who added it or why.

In plain termsValar's post with the 'CAT scan' claim is still on its website, word for word. Sometime between late March and late July 2026 the page was tagged asking search engines not to list it, while it stays on the company's own site. No correction or withdrawal of the claim was found. No statement of why the tag was added was found in public records as of late September 2026.
verified 2026-10-02: Second check, late September 2026: live page and Internet Archive captures of 8 Apr 2025, 24 Aug 2025, 22 Dec 2025, 26 Feb 2026, 23 Mar 2026 (no robots tag) and 22 Jul 2026, 25 Aug 2026 (tag 'noindex, nofollow') re-read; the CAT-scan sentence is identical in all; library data marks only this post 'disableIndex: true'. Match. Corrected in late September 2026: the headline now says the tag asks search engines not to list the post, and the absence of a correction is stated as 'no correction found'. Reworded 30 Sep 2026: the detail and the plain-language text.
recordconfirmed Valar's public safety agreement still lists 4.95% fuel, unchanged in every copy from Nov. 2025 to Sept. 2026
2026-09 · dir-009 · Valar Atomics, U.S. Department of Energy

Valar publishes one version of the Ward 250 Nuclear Safety Design Agreement (No. 100403, Revision 02, dated October 2025). The Internet Archive holds seven captures of that PDF (7 November 2025; 1 January, 3 March, 5 July, 6 July, 6 August and 18 September 2026); with the live file as of late September 2026, all eight are the same file, and each carries the fuel line 'Fuel Enrichment 4.95% U-235 LEU limits'. So the public copy was not revised after DOE's packaging review approved shipping HALEU fuel to Ward 250 (20 May 2026, safe-010) or after the reactor's first criticality (18 June 2026, orig-010). The agreement itself says that if the fuel differs from its specification, the safety assumptions will be updated in the later Preliminary Documented Safety Analysis, of which no public copy was found (safe-007); an updated analysis may exist. The companion Quality Assurance Program Description (No. 100474, Revision 02) is likewise unchanged across its six copies.

In plain termsThe only safety agreement the public can read still says the reactor's fuel is 4.95% enriched. It has not been changed since at least November 2025, even after DOE approved shipping richer HALEU fuel to the reactor and the reactor started up. The company may have updated its fuel numbers in a later safety analysis, but no public copy of that document was found in the records read.
verified 2026-10-02: Every archived copy of the PDF has the same text (Internet Archive captures from 7 November 2025 to 18 September 2026, plus the live file); the 4.95% line is in each. Copies are kept; the PDF files themselves are also identical (rechecked 2 Oct 2026). QAPD: 6 copies, identical text. Revised before publication (late September 2026): the archive index lists a 6 July 2026 capture the first count missed; seven captures plus the live file, all identical. Revised before publication (2026-10-01): wording made more exact against the cited records.
recordconfirmed Valar's two public safety papers were never listed in its own website library in any copy since they went up
2026-09 · dir-010 · Valar Atomics

Valar posted its Ward 250 safety agreement (NSDA) and Quality Assurance Program Description on its website on 13 October 2025, each on its own page linking the PDF. Valar Watch compared every saved copy of Valar's library page (valaratomics.com/docs): Internet Archive captures of 16 October and 7 and 19 November 2025, and 5 July, 6 August and 25 August 2026, and the live page in late September 2026. In none is either safety-paper page among the library's listed posts; the library lists the NRC-lawsuit post, the Project NOVA release and Valar's other announcements. So since they went up, the only safety papers Valar publishes have been reachable only by a direct link (for example from the Ward 250 page's data or from outside reporting), not by browsing Valar's library. The record does not show why they were left unlisted.

In plain termsThe two safety papers Valar has made public were not listed in any saved copy of its website library from October 2025 to September 2026. They are online, but a visitor browsing Valar's library would not find them; you need the exact link.
verified 2026-10-02: Saved copies of /docs (10 versions, 2025-04-08 to late September 2026): the links to listed posts were read from each copy; 'Ward250-Nuclear-Safety-Design-Agreement' and the QA post never among them. Captures before October 2025 predate the posts.
recordconfirmed What DOE has made public about Ward 250 safety, and what was not found: no DSA, TSRs, SER or startup approval, though DOE says its teams reviewed Ward 250's readiness before startup
2026-09 · safe-007 · U.S. Department of Energy, DOE Idaho Operations Office

Public DOE records found for Ward 250 as of late September 2026: the categorical exclusion DOE-ID-26-005 (signed 22 April 2026, posted with a June 2026 web path; csite-020); DOE's 18 June 2026 criticality release; and two DOE Packaging Certification Program documents on rampac.energy.gov (the Model 9979 fuel-shipment Safety Evaluation Report of 20 May 2026 and Valar's transport QA approval of 18 May 2026; safe-010). Found on 30 September: the Office of Environmental Management's article of 14 July 2026, which says EM staff took part in DOE's readiness review for the four pilot reactors, naming Ward 250, and in reviewing contractor submittals for advanced microreactor designs, a sentence that does not name Ward 250 (dir-031). Not found on DOE's public sites: the NSDA approval letter, the PDSA and final DSA, the Technical Safety Requirements, DOE's Safety Evaluation Report on the DSA (which DOE-STD-1271 says the approval authority approves), the readiness-review report, the startup approval (signed by the Secretary of Energy or a delegate under the standard), any approval to exceed 100 kWth, and the DOE-Valar Other Transaction Agreement. The NSDA also refers to a Code of Record (document 100437, which it says was provided to DOE with the NSDA) and to a Physical Security Plan and a Material Control and Accountability Plan, which it calls separate controlled documents. The contents of the Idaho Operations Office's document server (id.energy.gov) were not checked. No requirement that DOE or Valar post these documents publicly was found in DOE-STD-1271 or the NSDA. An absent posting is not proof a document is being withheld; it is what a FOIA request to the Idaho Operations Office would settle.

In plain termsDOE has posted its environmental decision, a press release and its approval of the shipping drums for the fuel. No public copy was found of the reactor's actual safety analysis, the operating limits DOE approved, DOE's own review of that analysis, or the signed permission to start. DOE has said that federal reviewers checked contractor safety submittals for the pilot reactors and took part in Ward 250's readiness review before startup (dir-031); what was not found in public records is the documents and their findings, not a statement that the reviews happened. Those are the documents that show what the reactor is allowed to do and why DOE thought it was safe. A Freedom of Information Act request can ask for them.
verified 2026-10-02: Checked in late September 2026: energy.gov B5.26 listing, CX, DOE release, both rampac documents and DOE-STD-1271 sec. 8 re-read. Holds. id.energy.gov was not re-read. Minor wording fixes. Corrected 2026-10-01: wording made more exact against the cited records.
recordconfirmed Incidents: none found in public records read, but DOE keeps occurrence reports closed to the public department-wide, 'for security purposes'
2026-09 · safe-033 · U.S. Department of Energy, Valar Atomics

Valar's NSDA commits Ward 250 to DOE's occurrence reporting order (NE O 232.1), accident investigations (NE O 225.1), ES&H reporting, independent oversight, and DOE's employee concerns and differing professional opinion programs (which DOE-STD-1271 says allow no alternative). DOE's Occurrence Reporting and Processing System page says that, 'for security purposes', access to occurrence reports is restricted to approved DOE and DOE contractor personnel, a restriction covering every report in the system, not one set for Ward 250; that page describes the department-wide order (DOE O 232.2A), while the NSDA commits to the Office of Nuclear Energy's own order, and whether Ward 250's reports go into the same system is not stated in any record read. No public report of an incident, occurrence, violation, enforcement action or worker injury at Ward 250, NOVA or the fuel line was found in DOE, state or news sources read as of late September 2026. OSHA's inspection database was not searched. Absence of a public record is not evidence that nothing happened; DOE's occurrence reports for Ward 250 can be requested under FOIA. Valar's quality program (p.20), for reporting confirmed suspect or counterfeit items, cites a different occurrence-reporting order, NE O 232.2. The NE orders were not found in public records, so which is current could not be checked.

In plain termsIf something goes wrong at a DOE-authorized reactor, the operator must report it to DOE in a formal 'occurrence report'. DOE's occurrence database is open only to approved DOE and contractor staff, for every facility in it (DOE cites security), and it is not stated whether Ward 250's reports go there. We found no public report of any incident at Ward 250, but because the database is closed, that tells us little. A FOIA request is the way to find out.
verified 2026-10-02: Re-read NSDA p. 45-46, the ORPS page and DOE-STD-1271 Attachment 1 in late September 2026. Holds. Fixed: the ORPS page covers DOE O 232.2A; the NSDA's NE O 232.1 reports are not shown to go into ORPS, so the plain text no longer asserts it. No public incident report was found. Corrected in late September 2026: added that the quality program cites NE O 232.2.
analysisconfirmed What holds up: DOE did authorize the reactor, the airlift was unfueled, DOE checked the fuel's shipping package, DOE rates TRISO fuel more resistant than ordinary fuel
2026-09 · safe-039 · Valar Atomics, U.S. Department of Energy

Claims tested and found supported by the record: DOE confirms Ward 250 is DOE-authorized and completed a zero-power criticality on 18 June 2026 (orig-010). The February 2026 airlift carried the reactor without fuel, and the fuel was to move separately from Nevada, consistent across World Nuclear News and DOE's packaging review. DOE's packaging reviewers independently recalculated criticality safety for the fuel's shipping package and agreed with the applicant. TRISO fuel's retention of fission products to about 1,600 C is stated in Valar's NSDA, and DOE says TRISO fuel is 'more resistant to neutron irradiation, corrosion, oxidation and high temperatures' than traditional reactor fuels. No active fault is mapped at the Ward 250 site, according to DOE's categorical exclusion and the Utah Geological Survey's fault map, and the same state map bears out Valar's no-fault claim for the Carbon parcel, as the Trust Lands memo relays it; the flood reasoning for Ward 250 is consistent across Valar's NSDA and DOE's categorical exclusion. The NOVA test was accurately described as operated by Los Alamos under NNSA oversight at zero power (orig-008). The 1 July electricity demonstration shows no sign of a commercial sale that would cross the EO 14301 line. The company's passive-cooling design is consistent with its safety documents, though the June 26 test is known only from Valar. Checked against Valar's own paper: its core-table arithmetic holds; its 100 m worker dispersion factor is at or above DOE's prescribed default; its 0.2 g earthquake value is close to the USGS design value for the site on soft rock (about 0.21 g); and its staffing of one senior operator and one operator per shift meets the NRC research-reactor benchmark.

In plain termsNot everything Valar says is contradicted by the record. The reactor really was approved by DOE and really did start up. It really was flown empty, and the fuel was approved to travel separately in a shipping package DOE checked for itself. DOE says the fuel type, TRISO, is 'more resistant to neutron irradiation, corrosion, oxidation and high temperatures' than traditional reactor fuels. Where the record supports the company, this file says so.
verified 2026-10-02: Re-checked in late September 2026 against DOE's 18 June 2026 release, World Nuclear News and DOE's packaging safety evaluation report. Holds. Revised before publication (late September 2026): added the NSDA values that check out (core table, 100 m factor, 0.2 g, staffing). Revised before publication (2026-09-30): reworded the detail; reworded the plain-language text; reworded the headline; removed the citation of Union of Concerned Scientists (advocacy publication); now cites U.S. Department of Energy, Office of Nuclear Energy instead; corrected the description of U.S. Department of Energy, Office of Nuclear Energy (quote).
analysisreported 'CAT scan' spent-fuel claim still on Valar's site; no supporting calculation or correction found there
2026-09 · safe-026 · Valar Atomics, Isaiah Taylor

Valar's April 2025 lawsuit post, still online in late September 2026, says its analysis indicates that holding spent fuel from its 100 kWt 'Ward One' test reactor (planned life under a month) for five minutes gives radiation exposure equal to a CAT scan. Valar's Ward 250 safety paper, the NSDA, credits reactor shielding that 'cannot be inadvertently defeated', analyzes fuel-handling accidents, and plans defueling into storage; DOE's categorical exclusion has the spent core leave in dry storage casks. No Valar correction or published calculation was found on Valar's website as of late September 2026. For scale: a CT scan is about 1 to 10 millisieverts (FDA), so five minutes would need 12 to 120 millisieverts an hour; the post gives no amount of fuel, cooling time, distance or shielding.

In plain termsUsed reactor fuel is radioactive; how much depends on the reactor's power, how long it ran and how long the fuel has cooled. Valar said holding used fuel from its planned Ward One test reactor for five minutes would be like one hospital CT scan. No calculation supporting it was found on its website, where the claim remains. For Ward 250, its own safety paper treats radiation shielding as a safety function, and DOE's review has the used fuel leave in dry storage casks.
verified 2026-10-02: Re-read Valar's 7 April 2025 post in late September 2026: the five-minute CAT-scan sentence is still on the page, with no correction or supporting calculation. Corrected in late September 2026: added the CT-scan dose-rate scale; removed a quoted phrase that was not Valar's wording. Corrected 30 Sept 2026: reworded the headline, detail and plain-language text to rest on government and company documents; a news citation was removed; now also cites the U.S. Energy Information Administration and the U.S. Department of Energy, Office of Nuclear Energy.
recordconfirmed Posted Sept. 25, closed Oct. 1: the state lab hosting Ward 250 advertised a time-limited Safety Manager job to lead its safety program
2026-09-25 · dir-006 · Utah Department of Natural Resources, Utah Office of Energy Development, Utah San Rafael Energy Lab, Valar Atomics

Utah state job requisition 2646 (Department of Natural Resources), opened September 25, 2026 with an application deadline of October 1, 2026, says the Utah Office of Energy Development (OED) is seeking a Safety Manager to lead the environmental, health and safety program at the Utah San Rafael Energy Lab (USREL), 800 N Coal Haul Rd, Orangeville. The role covers work with hazardous chemicals, molten salts, compressed gases, high-temperature systems, electrical and mechanical equipment, radioactive materials and industrial operations; it is to inspect and audit the lab and partner work areas, review new experiments and equipment before authorization, lead incident investigations, run training and emergency drills, coordinate emergency preparedness with local responders and regulators, and coordinate with the lab's Radiation Safety Officer on radiological training, dosimetry, incident response and license conditions, and with UOSH and Utah DEQ. It reports to the Lab Director, with authority to stop work on an imminent hazard. Minimum: ten years of safety experience and a bachelor's degree; radiological safety experience is listed as 'desirable'. The listing states: Schedule Code 'TL - Time Limited'; full-time, in-office, salary '$58.00' (unit not stated). OED owns the lab and is Valar's landlord there (mine-014); Valar reported first electricity from Ward 250 at the lab on July 1, 2026. The listing does not say whether the position is new or a replacement, or who led lab safety before; it does show that a Radiation Safety Officer role and radiological license conditions already exist at the lab. Ward 250's own nuclear safety basis is Valar's, under DOE's authorization; this job is the state's lab-wide safety lead.

In plain termsOn 25 September 2026 the state posted a job for the person who will run safety for the whole state-run lab where Valar's reactor operates: chemicals, high temperatures, radioactive materials and emergency plans, with power to stop work. It is a temporary (time-limited) state job, open for about a week, and radiation-safety experience is listed as 'desirable'. The listing does not say whether the position is new or a replacement; it does mention coordinating with a Radiation Safety Officer on license conditions.
verified 2026-10-02: Read on the State of Utah careers site (req2646) in late September 2026 and archived. Corrected in late September 2026: plain restated as what the listing shows; states what the listing does not say.
recordconfirmed Nuclear waste 'strictly prohibited' on the lease, per the slides; the memo lets Valar buy land for spent-fuel storage
2026-09-17 · csite-008 · Utah Trust Lands Administration, Valar Atomics, Utah Legislature

The staff slides shown to the board on 20 August list among 'Safeguards': 'Storage of nuclear waste is strictly prohibited on the lease'. The memorandum's terms add that before any portion of the property may be used to store radioactive waste, 'that portion, as determined by TLA, must be purchased by the lessee', and that Valar must buy any portion needed for 'interim storage of spent fuel' before storing it; spent fuel may not be stored on land the trust still owns. So storage is barred on land under the lease but provided for on land Valar buys. Utah Code 19-3-301 separately bans placing 'high-level nuclear waste' in Utah unless, among other conditions, the Governor approves with the Legislature's concurrence (a 2026 exemption for test-reactor waste exists); Utah defines that term by the federal 'high-level radioactive waste' (42 U.S.C. 10101), which covers waste from reprocessing spent fuel plus other highly radioactive material the NRC by rule says needs permanent isolation, while federal law defines 'spent nuclear fuel' separately. Whether used TRISO fuel kept at a Carbon reactor would fall under Utah's ban is not answered in any record read.

In plain termsThe short version shown to the board said nuclear waste is strictly banned on the lease. The full terms add a purchase route: Valar must first buy the piece of land it needs, and with federal and state licenses could store used fuel there for an interim period. Both statements are true; the slide leaves out the purchase route. Utah law strictly limits high-level nuclear waste, but whether that law reaches used fuel stored at a reactor is a legal question the records read do not settle.
verified 2026-10-02: Holds. Re-read in late September 2026: August slides p. 49 ('Safeguards'); memo p. 22 (Spent Fuel Storage) and p. 24 (Purchase Option); Utah Code 19-3-301 and 19-3-102(9); 42 U.S.C. 10101(12) and (23). Quotes exact. Removed two general statements from the plain text that no source read supports. Corrected 30 Sept 2026: the plain-language text was reworded for neutral wording.
recordconfirmed Utah-DOE 'Lifecycle Innovation Campus' pact cites Ward 250's 'successful permitting' and plans for out-of-state spent fuel
2026-07-27 · gov-030 · U.S. Department of Energy, State of Utah, Chris Wright, Spencer Cox, Valar Atomics

The memorandum of understanding signed on 27 July 2026 by Energy Secretary Chris Wright and Gov. Spencer Cox to establish a Nuclear Lifecycle Innovation Campus (NLIC) in Utah (posted by OED; read from its scanned pages) names, as the 'Historical Foundation' of the partnership, 'the successful permitting, development, and testing of Valar Atomics' Ward 250' test reactor at the San Rafael lab. It calls for a later Host Agreement that 'shall address the acceptance and management of out-of-state used nuclear fuel', spent nuclear fuel, high-level radioactive waste and greater-than-class-C radioactive waste; says permanent disposal facilities at the campus would be NRC-licensed, with the state never the licensee; has DOE provide regulatory oversight and authorization under 10 CFR 830 for activities not licensed by the NRC or regulated by the state; says decisions on public disclosure under FOIA or GRAMA 'will be made following consultation between the Parties'; and lets either side end it if no Host Agreement is signed by 30 September 2026. It also commits both sides to 'robust community engagement and transparency' (3.1), runs for 30 years, and extends federal nuclear-accident indemnity (AEA section 170d) to the state, campus tenants and contractors. The MOU names no site; the governor's March 2026 release named Tooele County as the candidate host, and no record read through 2 October 2026 places the campus in Carbon or Emery County. Set beside the record: the permitting on file for Ward 250 is DOE's authorization (safe-001, safe-007) and the Emery County Commission's 2 September 2025 building-permit vote (gov-021); no state permit for it was found.

In plain termsIn July 2026 the Energy Secretary and Utah's governor signed a pact to build a large nuclear fuel-cycle campus in Utah, possibly including the handling of spent fuel and high-level waste shipped in from other states. They point to Valar's reactor as an example of the two governments' past successful collaboration, calling its permitting 'successful'. Copies of DOE's actual approval documents for the reactor were not found in public records. The campus's location is not set in the document; the candidate named in the governor's March 2026 release is Tooele County, not Carbon or Emery.
verified 2026-10-02: Re-read all 8 pages of the NLIC MOU and re-read the governor's Tooele release in late September 2026; quote exact. Holds; added the transparency commitment, 30-year term and indemnity clause.
newofficial statementconfirmed DOE confirms federal readiness reviews of the four pilot reactors, Ward 250 among them, ending in a final report to the startup authority; no report was found in public records as of Sept. 30, 2026
2026-07-14 · dir-031 · U.S. Department of Energy, DOE Office of Environmental Management, National Nuclear Security Administration, Valar Atomics

DOE's Office of Environmental Management (EM) wrote on 14 July 2026 that 17 EM team members 'took part in DOE’s readiness review process for facility startup' and transition to operations for the four Reactor Pilot Program reactors that went critical by 4 July, naming Valar Atomics' Ward 250. It says readiness review team members reviewed documents, took part in onsite interviews and performance demonstrations, and 'prepared the final report with recommendation to the startup authorization authority' for approval to proceed with nuclear operations. They also reviewed corrective action plans and closure documents answering 'DOE-identified pre- and post-start findings'. The article does not say which reactor any finding concerned, or give each reactor's report or recommendation separately. It also says EM staff reviewed contractor safety submittals from preliminary to final design before recommendation to the safety basis approval authority. Separately, the DOE Nuclear Criticality Safety Program manager wrote in the program's Summer 2026 newsletter that NNSA's NA-ESH office 'has been helping out performing the federal readiness reviews for these reactors'. This is DOE's own confirmation of the kind of review Valar described to the state lab board in May. No copy of the readiness report, its findings or the startup authorization was found in public records as of 30 September 2026 (safe-007).

In plain termsDOE now confirms that federal teams reviewed Ward 250 and three other test reactors before startup and wrote a final report with a recommendation to the official who approves startup. That report, and any problems it found, were not found in public records as of 30 September 2026.
verified 2026-10-02: Checked 2026-09-30: re-read the EM article in full (published 14 July 2026) and the NCSP Summer manager's message (PDF created 10 Aug 2026); quotes exact. Tightened the headline: the article describes the review process across four reactors and speaks of 'the final report' generically, so a Ward-250-specific recommending report is not stated outright. Added the safety-basis review sentence from the same article. EM staff names omitted (roles only).
recordconfirmed Ambulance cover near the reactor: Orangeville's was available 13% of the time in June 2026, per a council report
2026-07-09 · loc-008 · Orangeville City Council, Emery Emergency Medical Special Service District, Emery County Commission · yearly state PILT money directed to Emery EMS for five years (21 July 2026): $200,000

ETV News (16 July 2026) reported that at the Orangeville City Council meeting of 9 July 2026 a councilman said Orangeville ambulance availability was 13% during the past month, against 24% the month before; that closure of the Orangeville-Castle Dale ambulance garage was being considered if staffing could not be fixed; and that the county had tabled the EMS district's funding request. On 21 July the Emery County Commission voted to direct the first $200,000 of state payment-in-lieu-of-taxes money each year for five years to the emergency medical district, to raise on-call pay by $2 an hour (ETV, 28 July). Valar's safety agreement asks to plan for on-site emergencies only and relies on coordination with Emery County Emergency Management, Emery County Fire and local responders (safe-016); no public emergency plan or drill record for Ward 250 was found (safe-016). How often an ambulance would be available for the Valar site, which lies on Coal Haul Road west of Orangeville (Castle Dale minutes, 12 March 2026), is not in any record read. The city's own minutes confirm the 13% figure for June (9 July); record on 11 June the fire chief saying the ambulance had been 'only available 14% of the time' and a council report that county ambulance arrival times were averaging 25 minutes and that stations might be combined; and record the city fire chief saying on 19 February that he would meet Valar on its fire safety plan and reporting on 12 March that he had gone through Valar's safety protocols and 'everything is looking well'.

In plain termsThe reactor's safety plan leans on local fire and ambulance crews for anything beyond the site's own staff. In June 2026 the Orangeville ambulance was staffed and available only about one-eighth of the time, according to a council member's report recorded in the city's minutes, and the county was moving money to fix that. The risk from the reactor is not measured here; the point is that the local emergency services it counts on are stretched.
verified 2026-10-02: Re-read ETV 16 July and 28 July and the Orangeville minutes: holds. Fixed 19 Feb (the fire chief said he would meet Valar; the 12 March minutes record that he had). Replaced two quotes that did not bear on this fact. Sourced the site's location.
official statementreported As reported, Carbon commissioners called Ward 250 a 'commercial reactor' and the planned data center waterless; Valar calls Ward 250 a research reactor and has called the data center both waterless and low-water
2026-07-01 · loc-005 · Jared Haddock, Tony Martines, Carbon County Commission, Valar Atomics, NVIDIA

ETV News (3 July 2026) reported the Carbon County Commission meeting of Wednesday 1 July 2026 (ETV's text gives 'June 2' and 'June 1', but its publication date, the fire restrictions ahead of the Fourth of July and the NVIDIA announcement place it on 1 July; the commission's 1 July minutes record the same celebration (csite-026) and record Commissioner Haddock saying Valar had announced a data center partnership, one 'that will run without any water'). As ETV reported it, Commissioner Jared Haddock described Ward 250 as having recently become 'the first government-approved commercial reactor' to achieve a self-sustaining reaction outside a federal lab, and Commissioner Tony Martines said that because Valar's reactor is gas-cooled and NVIDIA's chips are air-cooled, the planned data center won't need water. Set beside the record: Valar's own February 2026 release says Ward 250 is a research reactor and 'not a commercial power plant'; DOE's pilot is for research and 'not' to demonstrate commercial suitability; DOE's 'first DOE authorized reactor built outside of a national laboratory' holds (orig-010). On water, Valar's account as ETV reported it was that the data center would use a closed-loop cooling system 'designed for low water consumption' and that it already had the water it needs, while seeking up to 1,000 more shares for other projects (ETV, 28 July). The part about being first outside a federal lab holds; 'commercial' goes beyond what Valar and DOE say. The commissioners' no-water description matches Valar's own 4 August 2026 release, which calls the planned data center 'a waterless 30 MW AI factory'.

In plain termsTwo Carbon County commissioners, speaking at a public meeting as the local paper reported it, described Valar's test reactor as a 'commercial' reactor and its planned data center as needing no water. The officials' description, as reported, differs from Valar's own on the reactor: Valar calls Ward 250 a research reactor that is not a commercial power plant. On water, Valar has described the data center both as waterless (in its own August 2026 announcement) and as designed for low water use (as the local paper reported in late July).
verified 2026-10-02: Re-read ETV 3 July, the Feb 2026 Valar release and ETV 28 July: holds as ETV's paraphrase. Plain field now says 'as reported'. Revised before publication (late September 2026): the comparison is restated as a plain difference.
company claimconfirmed Valar calls itself 'very open and transparent', pointing to its photos and video; of its Ward 250 safety papers, two were found published, and the others, most listed for DOE review, were not found in public records
2026-06-28 · safe-040 · Valar Atomics

In its unlisted 'Ward 250 By the Numbers' page (28 June 2026), Valar says its beliefs have led it to be 'a very open and transparent company', that its reactor has been more photographed and filmed than any other in history, and that it is sharing raw data to be refined by internal and external peer review over the following weeks. The page still contains placeholders ('July XX', '[xxx]') and one chart, 'Reactor Power Ascension', which plots an unlabeled 'Q_Total' on a 0-100 scale and thermocouple readings of about 30-80 F against a 'sample index', with no power units, dates or time scale, so it cannot be used to check the power reached. Of the safety documents the NSDA and DOE records name for Ward 250, two were found published by Valar: the NSDA (marked 'Draft', though the Valar page that posts it says DOE has approved it) and the QA Program Description. Not found among Valar's published documents as of late September 2026: the PDSA, final DSA and Technical Safety Requirements, the Code of Record (document 100437), the startup and commissioning plan, the radiation protection program (DOE's categorical exclusion summarizes its dose limits), the transport QA program (document 100719, which DOE approved) and any emergency plan (the NSDA proposes on-site emergency response only, with no off-site planning, coordinated with local responders). The NSDA lists the safety analyses, operating limits, startup plan and safety programs as submittals to DOE; no requirement to post them publicly was found in the NSDA or in DOE's authorization standard, DOE-STD-1271. The Physical Security Plan and Material Control and Accountability Plan are security documents, which the NSDA calls separate controlled documents. County and state officials praised Valar's openness at the Trust Lands hearings.

In plain termsValar describes itself as unusually open, and it has published many photos and videos. The safety documents are a different matter: of the documents that define how the reactor is kept safe, we found two the public can read, and one is labeled a draft, though Valar says DOE approved it; the others were prepared for DOE's review. Some documents, like security plans, are normally kept private. The safety analysis and operating limits are not security plans; they can be requested from DOE under FOIA (safe-007).
verified 2026-10-02: Re-read 'By the Numbers' (single embedded image, the 'Reactor Power Ascension' chart, read from the image: Q_Total 0-100 with no units, thermocouples about 30-80 F, x-axis 'Sample index'), NSDA and QA Approval 0049 in late September 2026. Holds. Softened 'has published two' to 'two were found published': Valar's docs library page as posted lists five posts and no safety documents, so a complete inventory could not be made. Corrected 2026-09-30: reworded the plain-language text.
recordconfirmed DOE shipping review: fuel for Ward 250 is HALEU (under 20%), not the 4.95% its safety agreement lists
2026-05-20 · safe-010 · U.S. Department of Energy, Valar Atomics, National Criticality Experiments Research Center

A DOE Safety Evaluation Report, prepared by the manager of DOE's Packaging Certification Program and approved by DOE's Headquarters Certifying Official on 20 May 2026, reviews and recommends an amendment to the certificate of the Model 9979 shipping package to allow 'limited shipments' of high-assay low-enriched uranium (HALEU) TRISO fuel compacts from the National Criticality Experiments Research Center (NCERC) in Nevada to the Valar Ward 250 reactor site in Utah. Each package holds one hexagonal graphite 'WARD250 FUEL BLOCK' (Valar drawing V-002782) with 170 compacts; the U-235 in a block is 234.94 grams 'at less than 20% enrichment', the application describes the uranium in the particles as 'enriched to a maximum of 19.9 wt.% U-235', and the stated condition is 'less than 20 weight percent'. The report says the block's end use is as a fuel element in the Ward 250 microreactor. Valar's NSDA (October 2025, Table 6) lists Ward 250's fuel enrichment as '4.95% U-235' on the basis of 'LEU limits', and says that if the fuel differs from the specification its safety assumptions will be updated in the PDSA. The later PDSA and DSA were not found in public records, so whether DOE's approved safety basis was updated to HALEU could not be checked. This is the DOE record that disc-001 lacked: it matches the NOVA release's 'HALEU TRISO' wording (orig-008) and a Valar speaker's statement that part of the core went critical in Nevada, and conflicts with the NSDA's 4.95% figure. Per element, the NSDA's own figures imply 162.83 g of U-235 in 3.29 kg of heavy metal; DOE's block holds 234.94 g of U-235, about 1.18 kg of uranium at the 19.9% maximum enrichment. No single enrichment fits both (76 such blocks holding 250 kg would need 7.14%), so Table 6's equal per-element loading does not match the block DOE cleared, unless some of the 76 elements are unfueled or loaded differently, which the paper does not say.

In plain termsUranium fuel is graded by the share of U-235, the kind that splits. Ordinary power-plant fuel is below 5%; HALEU runs from 5% to just under 20%. Valar's public safety agreement says Ward 250 burns 4.95% fuel. DOE's own shipping review says the fuel approved for shipment to Ward 250 from Nevada is HALEU, enriched up to 19.9%, which is up to about four times richer. The fuel is the same kind of tiny coated bead (TRISO); what differs is how much of the splitting kind of uranium is in each bead. Richer fuel changes the reactor physics, and the safety agreement says fuel-design changes will be carried into the later safety analysis. The only public safety agreement describes different fuel from the fuel DOE reviewed for shipment; the safety analysis DOE approved, which may have been updated, was not found in public records.
verified 2026-10-02: Re-read the SER (all 9 pages) and NSDA Table 6 and pp. 11, 26 in late September 2026. Conflict holds. Fixed: the SER reviews and recommends the letter amendment (the amendment letter itself was not read); added the 19.9% maximum the SER gives; plain now says 'approved for shipment' and 'up to about four times', not 'sent' and 'roughly four times'. Corrected in late September 2026: added the per-element U-235 and heavy-metal comparison with DOE's block. Corrected 2026-09-30: reworded the plain-language text.
recordreported POWER: DOE gave preliminary safety-analysis approval in Feb 2026 and final approval April 23, 2026
2026-04-23 · orig-033 · Valar Atomics, U.S. Department of Energy, POWER magazine

POWER magazine's June 19, 2026 report says Ward 250's DOE Documented Safety Analysis received preliminary approval in February 2026 and final approval on April 23, 2026, ahead of the June 18 criticality. It describes Ward 250 as a TRISO-fueled modular HTGR with helium coolant and names applications including electricity, process heat, hydrogen and materials processing. The DSA itself was not read: no public copy was found as of late September 2026 (safe-007). POWER also names Kiewit Nuclear Solutions as the engineering, procurement and construction contractor. The Partnership for Global Security separately wrote in March 2026 that the government had approved Valar's preliminary safety analyses.

In plain termsA trade magazine reported that DOE approved Ward 250's safety analysis in two steps, in February and April 2026. No public copy of the safety analysis itself was found (safe-007).
verified 2026-10-02: Second check, late September 2026: POWER re-read: preliminary DSA approval Feb 2026, final April 23, applications list. Match. Stays 'reported': the dates come from one trade report, and no public copy of the DSA was found. Corrected 1 Oct 2026: wording made more exact against the cited records.
recordconfirmed Valar's Utah reactor cleared federal environmental review with a categorical exclusion, so no EA or EIS was required
2026-04-22 · csite-020 · U.S. Department of Energy, DOE Idaho Operations Office, Valar Atomics

DOE's NEPA determination DOE-ID-26-005, digitally signed on 22 April 2026 by a DOE NEPA compliance officer (the PDF's web address places its upload in June 2026), categorically excluded 'Valar Ward250 Research Reactor' at the Utah San Rafael Energy Research Center from further NEPA review under category B5.26. DOE created B5.26 by a Federal Register notice effective 2 February 2026 (comments were taken afterwards, to 4 March), under Executive Order 14301; it covers 'Authorization, siting, construction, operation, reauthorization, and decommissioning of advanced nuclear reactors' if DOE finds the risk of offsite release is sufficiently reduced and wastes can be managed, and says a project 'may include multiple reactors'. The notice states that reactors 'developed for additional purposes, such as power production and industrial applications' are also appropriate for it. DOE's B5.26 listing showed five determinations in late September 2026. No DOE NEPA document for a Carbon County site was found in the records read as of late September 2026.

In plain termsFederal law (NEPA) makes agencies study environmental effects before approving projects, for larger actions in a public environmental assessment or impact statement. A 'categorical exclusion' is a category for actions the agency has decided are normally minor: no environmental assessment or impact statement, and no comment period on the project. It is an environmental-review decision under NEPA, separate from DOE's nuclear-safety approval of the reactor (safety analysis, operating limits, readiness review, startup approval; dir-031). DOE created one for advanced reactors in February 2026 and used it for Valar's Emery County reactor in April. It is written broadly enough to cover power reactors and multi-reactor sites. If a Carbon County reactor goes the DOE route, neighbors may get no federal environmental report to comment on at all; if it goes through the NRC, a public review would be expected.
verified 2026-10-02: Holds. Re-read in late September 2026: CX-271015 (7 pages; signature dated 2026.04.22); Federal Register 2026-02071 (91 FR 4550; effective 2 Feb 2026, comments to 4 Mar) full text; DOE's B5.26 listing (Groves-1, SPARC, Ward250, Deployable Energy, Aalo-X). Quotes exact. 'Idaho Operations' removed: the document gives only the DOE-ID number. Second check, late September 2026: the notice is now cited from DOE's own posted copy, read in full: effective 2 Feb 2026, comments due 4 Mar 2026, B5.26 text, 'multiple reactors within a nuclear facility', 'additional purposes, such as power production and industrial applications'. Revised before publication (2026-09-30): reworded the plain-language text. Revised before publication (2026-10-01): wording made more exact against the cited records.
recordconfirmed On paper Ward 250 is temporary: 12 months of running, then cooldown and teardown; its two papers differ on length
2026-04-22 · plan-003 · Valar Atomics, U.S. Department of Energy

Valar's Nuclear Safety Design Agreement (October 2025) describes a lifecycle of about 18 months from authorization through decommissioning: a pre-operational phase, 12 months of nuclear operations in test campaigns, then defueling and decommissioning that returns the site to unrestricted use. DOE's environmental determination (22 April 2026) describes a 24-month research program: about 12 months of reactor operation, 6 months of in-vessel cooldown and 6 months of decommissioning, after which the single core of spent fuel goes in dry casks to an unnamed 'DOE-approved facility'. DOE's agreement with Valar runs from October 2025 to 4 July 2027. If operations are counted from criticality in June 2026, the 12 months end around June 2027, and DOE's schedule puts the end of decommissioning around mid-2028; no record read gives the actual planned end date. Set beside this, Valar now describes the Utah site as home, not just a test site: its head of projects told the state trust-lands board the lab is 'no longer just a test facility', it is buying the neighboring 112-acre parcel (gov-022), it was approved for a state tax credit that requires it to stay 10 years, and its Castle Country page says 'we're ready to build more'. At the 1 July 2026 event Taylor said the fuel inside Ward 250 would let it keep running for 165 years (KSL/Deseret, 6 July); that describes the fuel's capacity at very low power, not the approved plan, which is about 12 months of operation with no refueling (DOE). The two are not necessarily in conflict (the test reactor can be removed while the company stays), but no document found in public records as of late September 2026 says what replaces Ward 250 or whether Ward 250 will actually be torn down on the stated schedule.

In plain termsThe official paperwork treats Ward 250 like a science experiment with an end date: run it for about a year, let it cool, take it apart, ship the used fuel away and leave clean ground. Valar's own safety document says the whole thing takes about 18 months; DOE's environmental paper says 24. Meanwhile the company tells local officials it is here to stay, and at a public event its CEO said the fuel could last 165 years; the approved plan is about one year of running. Both can be true, but no plan for what comes after the test reactor, and no firm date for taking it down, was found in public records as of late September 2026. The safety agreement's 18 months does not fit its own schedule: from the end of its review, the Table 7 pre-operational period plus 12 months of operation already runs about 19.75 months, before any decommissioning, unless the 18 months is counted from startup. DOE's 24 months fits that startup reading.
verified 2026-10-02: Checked in late September 2026: NSDA p. 8 (18 months; 12 months of operations) and DOE CX (24 months: 12+6+6; spent fuel to a 'DOE-approved facility') re-read and hold. 'Took' a tax credit changed to 'was approved for' (the record shows board approval). Taylor's 165-year remark added from KSL. Corrected in late September 2026: the plain-language text adds that the NSDA's 18 months does not fit its own schedule.
analysisconfirmed Valar's draft accident math puts the nearest public access 400 m away; the host lab is 20.6 acres, too small to hold a 400 m radius
2026-04-22 · safe-014 · Valar Atomics, Utah San Rafael Energy Lab

The NSDA's accident doses are calculated for a site boundary 400 m from the reactor, described as 'the nearest point of public access', with the nearest residence at about 800 m and the nearest group at 1,200 m. DOE's categorical exclusion describes USREL as 'a 20.6-acre site', with Ward 250's reactor complex and fuel laboratory inside a security-fenced area of about 2 acres; ETV News (October 2025) reported Valar's allotment at the lab as 11 acres. A circle of 400 m radius covers about 124 acres (pi x 400 m squared = 502,655 square meters), so no point on a 20.6-acre site can be 400 m from every edge of it. The 400 m boundary must therefore run over land outside the lab, and no record read says who controls public access there. The NSDA's own dispersion factors show why it matters: the one it uses at 100 m is 16 times the one at 400 m (4.0e-3 versus 2.5e-4 s/m3), and its worst-case dose at 100 m is under 5 rem. Our check: the 100 m factor meets DOE's prescribed default, but the 400 m factor is 3.1 to 12.3 times lower than standard rural methods give for the paper's stated weather, so its 400 m bounds may be low by that factor (still far below 25 rem). In August 2026 Valar said it was buying about 110 acres north of the lab from Emery County, and later state records describe the land as purchased (mine-018); that could put more nearby land under Valar's control, but it post-dates the October 2025 NSDA and no record read says whether it covers the 400 m circle. No public copy of the approved DSA's site description, which would define the boundary, was found. DOE's categorical exclusion says 'Radiation monitoring and controlled access are maintained during operations', without saying where. No DOE document read sets 400 m as a required exclusion boundary for Ward 250; it is the distance at which Valar's draft paper calculates public doses.

In plain termsAccident calculations assume the closest a member of the public can get to the reactor. Valar's figure is 400 meters. But the whole state lab it sits on is only about 20 acres, and a circle reaching 400 meters out in every direction would cover about 124 acres. So either public access to land beyond the lab is controlled, which no record read describes (Valar has since bought, or is buying, about 110 acres north of the lab, mine-018, but no record read says whether that covers the circle), or people can get closer than 400 meters, where the calculated doses would be higher. The final safety analysis would show which.
verified 2026-10-02: Re-read NSDA pp. 10, 36 and CX pp. 1-2 and ETV in late September 2026; geometry re-checked (pi x 400^2 m2 = 124.2 acres). Holds. Added Valar's reported 110-acre purchase (mine-018) as a possible partial explanation; no record ties it to the boundary. Revised before publication (late September 2026): dispersion factors not called concentrations; 'up to 5 rem' now 'under 5 rem'; added the 100 m and 400 m checks. Revised before publication (2026-09-30): reworded the plain-language text; reworded the headline. Revised before publication (2026-10-01): wording made more exact against the cited records.
recordreported ProPublica: a DOE memo cited shielding savings on Valar's reactor to argue for loosening public radiation limits
2026-03-20 · dir-011 · U.S. Department of Energy, Valar Atomics, ProPublica, The Salt Lake Tribune

ProPublica reported on 20 March 2026 (Avi Asher-Schapiro; republished by The Salt Lake Tribune on 13 April 2026) that a recent DOE memo it had seen 'cites cost savings on shielding for Valar's reactor to justify changing' the radiation-exposure limits, putting 'shielding-related cost reductions' at '$1-2 million per reactor', and that internal DOE documents show the department 'has been considering a fivefold increase' to the limit for public exposure to radiation. A DOE presentation made in its Idaho offices argued changing dose rules could cut some new reactors' cost by as much as 5%. ProPublica reports, citing sources familiar with the deliberations, that whether the agencies will change the legal limits is an open question. DOE said its radiation standards protect people and the environment; the NRC declined to comment; Valar did not reply. No copy of the memo was found in public records. Valar's CEO has called radiation-exposure limits a top barrier to the industry's growth.

In plain termsThe public radiation limit is the rule that protects people who live near a reactor. An investigative news outlet saw an Energy Department memo that used the money Valar's reactor could save on shielding as a reason to loosen that rule, and department papers showing it has considered letting the public limit rise fivefold. As of ProPublica's March 2026 report the limit had not been changed, and no copy of the memo was found in public records.
verified 2026-10-02: Read ProPublica directly in late September 2026: memo sentence and '$1-2 million per reactor' quoted exactly; 'fivefold increase' sentence confirmed; the article gives no numeric limit. Tribune page shows the ProPublica byline (body paywalled). Written about the department's documents only; conduct attributed in the same article to individual officials is kept out of this fact.
recordconfirmed Utility district minutes: Valar 'tied into the county sewer system without prior authorization'; state permit needed
2026-03-19 · loc-015 · Castle Valley Special Service District, Valar Atomics, Utah Division of Water Quality, Jess Housekeeper, Willem Kriel

Castle Valley Special Service District (CVSSD) runs water and sewer for Castle Valley towns including Orangeville. Its approved minutes of 19 February 2026 record Valar's Jess Housekeeper presenting Valar's plans (by video), the board approving a $20,000 outside-district water connection for Valar contingent on all water shares being submitted to Orangeville, and the manager reporting that Valar 'will be required to apply to' the state Division of Water Quality (DWQ) for a sewer discharge permit, which DWQ would administer for four years, and that no sewer connection would be approved until DWQ approved the permit. The approved minutes of 19 March 2026 (whose opening line misdates the meeting to 19 February) record the manager's update: sewer plans 'were not submitted to the State as required', water service work was paused pending DWQ approval, 'Valar tied into the county sewer system without prior authorization', Valar was asking for ordinary sanitary sewer service for restrooms only with no process water, a site visit with the regional DEQ engineer was planned, and water service would not be provided until all sewer permits and approvals were in place; no action was taken. The district's May, July and August 2026 minutes (read; the June minutes, approved on 16 July, were not found on the state public notice website as of 30 September 2026) do not return to the sewer issue, though the May minutes discuss annexing property near Orangeville 'that may be developed by Valor', and its 17 September agenda lists no Valar item. DOE's categorical exclusion puts water use under 1,000 gallons a day for domestic use, with no process-water discharges, which matches the restrooms-only request. As of 30 September 2026, no record read shows whether DWQ issued a permit, or how the tie-in the minutes report was resolved.

In plain termsThe local water-and-sewer district recorded in March 2026 a staff report that Valar had 'tied into the county sewer system without prior authorization', and had not sent its sewer plans to the state as required. The request itself was ordinary, toilets and sinks only, not reactor water. It matters less for danger than for process: the district's minutes are the only record of it found, and no Valar response or later resolution appears in the records read. Whether the state permit was later issued was not found in the records read as of 30 September 2026; a GRAMA request to the Division of Water Quality and to the district would show it.
verified 2026-10-02: Re-read the Feb and Mar minutes (text) and the May and July minutes (scanned): holds. Corrected 'June minutes read' (June's are not posted). Plain-language text: 'habit' implied a pattern from one record, now 'process'. Revised before publication (late September 2026): the plain-language text attributes the tie-in to the staff report and drops a conclusion. Revised before publication (2026-09-30): reworded the detail.
recordconfirmed DOE's new NEPA exclusion drew formal objections, incl. from Utah groups; no DOE response was found on its NEPA page as of late September 2026
2026-03-04 · safe-029 · U.S. Department of Energy, Nuclear Information and Resource Service, HEAL Utah, Uranium Watch

DOE announced categorical exclusion B5.26 on 2 February 2026 (91 FR 4550), already included in its procedures (the notice says it is 'effective on February 2, 2026'), and invited comments until 4 March 2026 (csite-020). On 4 March the Nuclear Information and Resource Service filed comments for itself and 25 groups, including HEAL Utah and Uranium Watch of Moab, arguing among other things that the exclusion expressly allows multiple reactors in one facility, that stacking exclusions and judging segmentation or 'extraordinary circumstances' would be shielded from public input, and that public involvement improves reviews. Uranium Watch wrote that coverage of the Valar reactor gave no information on worker and resident protection, emergency response planning, spent-fuel storage, who to contact, oversight or the need for NRC licensing if power is sold to non-federal entities. DOE's categorical-exclusion page, read in late September 2026, still says DOE 'will consider' comments received by 4 March and links no response. DOE applied B5.26 to Ward 250 on 22 April 2026; that determination says no extraordinary circumstance applies, a category it defines to include scientific controversy about environmental effects. The exclusion's text, as printed in the determination, says 'a project may include multiple reactors within a nuclear facility'.

In plain termsDOE put the exclusion into effect first and took comments afterwards. Twenty-six groups, including two from Utah, objected in writing that it limits public input and can cover several reactors at one facility. Seven weeks after the comment period closed, DOE used it for Valar's reactor, finding no 'extraordinary circumstance', a category that includes scientific controversy. As of late September 2026, DOE's page shows no answer to those comments.
verified 2026-10-02: Re-read NIRS comments (25 co-signers counted, incl. HEAL Utah and Uranium Watch), DOE's CX page and the CX in late September 2026. Holds. Fixed: 'effective 2 February' now sourced (DOE page plus NIRS); the CX finds no 'extraordinary circumstance', which it defines to include scientific controversy, rather than finding 'no scientific controversy' as such. Revised before publication (2026-09-30): reworded the headline; reworded the detail; reworded the plain-language text; removed the citation of Nuclear Information and Resource Service et al. (it was cited for what DOE said, which DOE's own notice now shows; the filing stays cited as the objectors' own comments); now cites U.S. Department of Energy (Federal Register notice) instead.
recordconfirmed Fire review of the reactor building: the State Fire Marshal declined; there is no county fire inspector
2026-02-17 · loc-018 · Emery County Fire Protection Special Service District, Utah State Fire Marshal, Valar Atomics, Emery County Commission

Minutes of the Emery County Fire Protection Special Service District: 17 November 2025, item 'Getting 3rd Party to Review Plans for Nuclear Power Plant': the district was asked to approve fire plans for the 'Nuclear test plant' at Orangeville; the chair had called the State Fire Marshal's office, which 'didn't want to touch it'; the board tabled it to get information on the fire code and whether there was adequate water flow (GPM) for the building classification. 15 December 2025: the chair said he would sign the fire protection plans as soon as the paperwork arrived (safe-016). 17 February 2026 (the minutes' header reads 'Tuesday, February 17th, 2025', misprinting the year), item 'Valar Atomics': fire chiefs were asked to review building plans; 'State agencies declined to perform plan review and recommended third-party review'; responsibility may fall to the district or a local fire authority because there is no county fire inspector; the review concerns building fire-code compliance, not reactor design. 16 March 2026: 'The issue has been addressed with chiefs and is not currently a concern.' The April, May and June 2026 minutes do not return to it. Separately, Emery County's commission voted Valar's building permit itself on 2 September 2025 because its building department had not issued one (gov-021), and Orangeville's fire chief reported on 12 March 2026 that he had gone through Valar's safety protocols (loc-008). As of 30 September 2026, no record read says whether a third-party plan review was done, who did it, or what it found.

In plain termsBefore a building opens, someone normally checks its plans against the fire code. For the building that houses the reactor, state agencies declined to do that check and recommended a third-party review, and the county has no fire inspector of its own, so the job may fall to the county fire district or a local fire department. The March 2026 minutes say it 'has been addressed with chiefs and is not currently a concern', but not how, or by whom. This is about ordinary fire safety of the building, not the nuclear safety of the reactor, which DOE reviews.
verified 2026-10-02: Re-read all fire district minutes. Corrected the meeting date to 17 Feb 2026 (Tuesday; the header misprints the year). Fixed the Orangeville fire chief item and removed 'volunteer' from the plain-language text (not in the source). Revised before publication (2026-09-30): reworded the plain-language text.
recordconfirmed Emergency planning: Valar asked to plan for on-site emergencies only; no public record shows DOE agreed
2025-12-15 · safe-016 · Valar Atomics, U.S. Department of Energy, Emery County Fire Protection District, Emery County Emergency Management

The NSDA asks DOE to tailor its emergency-management order (NE O 151.1) to 'on-site emergency response only (no off-site planning required)', justified by the worst-case boundary dose and an 800 m distance to the nearest residence (Appendix C.3); it says 'Emergency planning requirements remain limited to on-site response'. It commits to coordination with Emery County Emergency Management, Emery County Fire and local responders: familiarization tours, table-top exercises, hazard information, direct notification links and annual coordination meetings. DOE-STD-1271 lets contractors use equivalent NRC or industry standards 'except where noted'; its Emergency Management entry (NE O 151.1) lacks the explicit 'may choose ... an alternative' sentence most other sections carry, and the Nuclear Innovation Alliance reads the standard as allowing equivalents 'except for Emergency Planning and Cybersecurity'. The standard's general text does still let a contractor request a 'self-generated equivalent' or an exemption for any listed item, decided by DOE's approval authority, so a request like Valar's is not ruled out on its face. Valar's web summary does not list emergency planning among the alternatives DOE approved. Local record: the Emery County Fire Protection District's 15 December 2025 minutes record the board discussing the 'nuclear test plant proposed in Orangeville' and its fire protection plans, and the outgoing chair saying he would sign them when the paperwork arrived. No public emergency plan for Ward 250, no record of a table-top exercise, and no public notification arrangement for residents were found as of late September 2026. In comments to DOE (March 2026), Uranium Watch said news coverage of the Valar reactor gave no information on emergency response planning, spent fuel or who to contact. The paper's justification (p.54) calls boundary doses under 0.5 rem 'well below Protective Action Guidelines'. EPA's guide for evacuating or sheltering the public starts at 1 rem over four days, a factor of 2 above that bound, and the paper does not address EPA's 5 rem child-thyroid guide for potassium iodide, although it names iodine-131 as the main dose contributor.

In plain termsBig power plants must plan for evacuating or sheltering people for miles around. Valar argued its worst accident is small enough that emergency planning can stop at its own fence, with local fire crews briefed. DOE's own rulebook seems to leave less room to swap out the emergency rules than others, though a company can still ask, and the company's public summary does not say DOE agreed. The county fire board discussed fire-protection plans for the site in December 2025. No copy of the emergency plan itself was found in public records as of late September 2026: who gets called, and what neighbors would be told to do.
verified 2026-10-02: Re-read NSDA pp. 11, 20-21, 45, 54; DOE-STD-1271 Attachment 1; NIA; Emery County Fire Protection District minutes of 15 Dec 2025; NIRS comments in late September 2026. Fixed: the headline 'no stated opt-out' overstated the standard, whose general text lets a contractor request an equivalent or exemption for any item; the fire board 'discussed' (not 'reviewed') the plans. Corrected in late September 2026: added EPA's evacuate-or-shelter guide (1 rem, a factor of 2) and the unaddressed 5 rem child-thyroid guide.
analysisconfirmed Ward 250's safety papers lean on Ward Zero tests and reuse its hardware; no Ward Zero test data was found in public records as of late September 2026
2025-10 · orig-059 · Valar Atomics, U.S. Department of Energy, Ward Zero, Ward 250

Valar's NSDA (October 2025) says Ward 250 directly uses hardware that has undergone full-scale testing, that design work focuses on nuclear-specific modifications to the proven WardZero configuration, and it credits Ward Zero testing for key safety points: natural circulation during a loss of coolant flow, and the capacity of the Reactor Cavity Cooling System. It also asks DOE to accept the final safety analysis at 90% design completion because the WardZero program has completed design, installation and testing of major safety-significant systems. Valar's QA Program Description, which Valar's October 13, 2025 post says DOE approved, has a section on using existing WardZero hardware: Ward Zero components may go into Ward 250 if they stay traceable and are evaluated, and Ward Zero operating data may count as design verification by comparison to 'similar proven systems'. Ward Zero was completed in February 2025, before that QA program was approved. Valar's June 2026 draft says the reactor underwent non-nuclear testing at its Hawthorne headquarters above 750 C and 6 MPa before shipment. No Ward Zero test report, data set or DOE review of it was found in public records as of late September 2026, and the page titled 'Ward Zero Whitepaper' holds no Ward Zero data (orig-058). Whether DOE examined the Ward Zero data would be shown by the PDSA and DSA, of which no public copy was found (safe-007).

In plain termsWard 250 was not built from scratch in Utah. By Valar's own safety papers it reuses parts of Ward Zero, the electric-heated prototype tested in California, and Ward Zero's tests are offered as proof that key safety features work, such as the reactor cooling itself by natural air flow. Some of that hardware was built before the quality program was approved by DOE, as Valar says it was; the program allows that if the parts are traced and checked. No Ward Zero test results were found in public records, so the public cannot check the evidence this part of the safety case rests on.
verified 2026-10-02: Second check, late September 2026: NSDA (full-scale tested hardware; proven WardZero configuration; natural circulation and RCCS credited to WardZero; DSA at 90% design because WardZero tested major safety systems), QA plan (WardZero hardware section; 'similar proven systems'), QA post and draft page re-read. Match; approval wording attributed to Valar's post. Revised before publication (late September 2026): whitepaper line now 'holds no Ward Zero data'; source title parenthetical now 'not listed in Valar's library'. Revised before publication (2026-09-30): reworded the plain-language text.
recordconfirmed Who approves Ward 250: DOE alone. Its safety agreement says no move to an NRC license is planned
2025-10 · safe-001 · Valar Atomics, U.S. Department of Energy, Nuclear Regulatory Commission

Valar's Nuclear Safety Design Agreement (NSDA, document 100403 rev 02, October 2025) says Ward 250 is a contractor-owned, contractor-operated facility 'under DOE jurisdiction', authorized under the federal nuclear safety rule 10 CFR 830, with DOE-STD-1271-2025 as its primary authorization standard, and that no transition to NRC licensing is planned or intended. DOE's NEPA determination of 22 April 2026 says the same: the facility 'will operate under U.S. Department of Energy (DOE) authorization'. The legal basis is Executive Order 14301 (23 May 2025): section 3 finds that advanced reactors under enough DOE control that are not built 'to produce commercial electric power' fall within DOE's jurisdiction rather than the NRC's, and section 5 orders a pilot program outside the national laboratories under 42 U.S.C. 2140, approving at least three reactors 'with the goal of achieving criticality' in each by 4 July 2026. DOE-STD-1271 itself exempts anything the NRC regulates. The text of DOE-STD-1271 contains no public-hearing or public-comment step (searched for 'hearing', 'public comment', 'comment period'); its foreword only invites emailed suggestions for improving the standard itself.

In plain termsTwo federal agencies can approve a reactor. The Nuclear Regulatory Commission (NRC) is the independent safety regulator for commercial reactors, and its licensing includes published notices and a chance for the public to ask for a hearing. The Department of Energy (DOE) can instead approve test reactors it controls. Ward 250 took the DOE route, so the agency that sponsors the pilot program is also the one that judges its safety, and the DOE rulebook used has no step where the public comments or asks for a hearing. This is the route the 2025 executive order set up; it also means far less of the review happens in public.
verified 2026-10-02: Re-read in late September 2026: NSDA pp. 2 and 47, CX p. 1, EO 14301 secs. 3 and 5, DOE-STD-1271 sec. 2.1.d and full-text search. Fixed: headline said 'will never move' where the NSDA says no NRC transition is 'planned or intended'; the EO sets criticality by 4 July 2026 as a goal, not a requirement; Federal Register page corrected to 90 FR 22591.
recordconfirmed The accident analysis assumed 3 megawatt-days of fuel use; the same document's limit allows 30, ten times more
2025-10 · safe-009 · Valar Atomics, U.S. Department of Energy

In the NSDA's Maximum Hypothetical Accident analysis (pages 34-36), the radioactive inventory is based on 'OpenMC neutronic analysis with 3 MWd total burnup' and 'Conservative 30 EFPD operation assumed for inventory buildup' (30 effective full-power days at 100 kW is 3 megawatt-days). Earlier (page 10) the NSDA says the analysis assumes operation at maximum licensed power long enough to reach equilibrium inventories. Its operating limits (page 25) set 'Fuel burnup limit: 30 megawatt-days', and its objectives call for 12 months of operation with availability above 80% and steady operation up to 250 kWth (page 8). The limit is ten times the burnup the accident inventory was built on. Valar's July 2025 county presentation (orig-045) and its June 2026 draft post both describe 30 effective full-power days, which matches the accident analysis rather than the 30 MWd limit. The lifecycle also differs: the NSDA gives about 18 months 'from authorization through decommissioning', DOE's categorical exclusion a 24-month program (12 months of operation, 6 of cooldown, 6 of decommissioning). No public copy of the approved DSA, which would fix the inventory and limits, was found as of late September 2026 (safe-007). Our check using standard half-lives: going from 3 to 30 MWd at the same power would raise iodine-131 by about 8% and the iodine and noble-gas dose by about 4%; cesium-137 and strontium-90 would grow about tenfold but stay about 4% of the iodine-131 activity. The NSDA's 18 months is also shorter than its own schedule: Table 7's dates plus 12 months of operation already exceed 18 months before any decommissioning, unless counted from startup.

In plain termsThe longer and harder a reactor runs, the more radioactive by-products build up in its fuel, and an accident analysis has to assume the worst amount. Valar's worst-case analysis assumed about 30 days at full power. The same document's own limit would allow roughly ten times as much fuel use, and its goals speak of a year of operation. The company's later statements point to 30 days, which would fit the analysis. No public record found as of late September 2026 shows which limit DOE approved.
verified 2026-10-02: Re-read NSDA pp. 8-10, 25 and 34-37 and CX in late September 2026. Holds: '3 MWd total burnup' and '30 EFPD' (p. 34) against a 30 MWd limit (p. 25); I-131 named 'primary dose contributor'. Arithmetic checked (30 days x 0.1 MW = 3 MWd). Corrected in late September 2026: last sentence replaced with our half-life check (I-131 +8%, iodine and noble-gas dose +4%); added the 18-month schedule point.
recordconfirmed The state's earliest agreement with Valar found in public records (May 16, 2025) made it and 'related information' confidential, except as required by law, and barred publicity without consent; the energy office uses similar terms with some other nuclear companies
2025-05-16 · gov-011 · Utah Office of Energy Development, Valar Atomics, Emy Lesofski, Max Ukropina, Utah San Rafael Energy Lab

The memorandum of understanding between the Utah Office of Energy Development and Valar Atomics, dated and signed 16 May 2025 by OED Director Emy Lesofski and Valar's Max Ukropina, is posted on OED's website with signatures omitted (the file was uploaded 12 January 2026, per the site's media record). It sets a 'non-binding framework' to evaluate Valar 'activating a nuclear test reactor' and 'TRISO fuel fabrication' at the San Rafael Energy Lab 'for research'; the areas the parties 'intend to explore' include OED providing site, infrastructure and shared facilities, and Valar's responsibility for design, operation and 'regulatory compliance'. It targets 'Test Reactor activation by July 2026, with milestones for approvals', a week before Executive Order 14301 (23 May 2025) set the 4 July 2026 criticality goal. Clause 5 says the MOU 'and related information are confidential' and shall not be disclosed without both parties' consent, except as required by law, and that OED 'requires Valar officer approval for external disclosures'; clause 4 treats information exchanged as confidential 'unless otherwise required by law', notes that OED is subject to GRAMA, and has the lab notify Valar of any records request touching Valar-designated confidential information; clause 8 says 'No publicity shall be issued without mutual consent'. Clause 6 names compliance with applicable laws 'including Department of Energy (DOE) regulations'; the NRC is not mentioned. Either side may end it on 30 days' notice; OED cannot indemnify Valar, and the MOU does not oblige it to spend money not appropriated. The confidentiality terms are not unique to Valar: two of OED's later nuclear MOUs posted on its website carry similar clauses, Deployable Energy's (18 Aug 2026) barring publicity 'without the prior written consent' of the other party, and Oklo's (27 March 2026) treating the MOU, its contents and 'the fact that the Parties are discussing' it as confidential. They are OED's common practice with nuclear developers, though not universal: its June 2026 MOU with Nuclea Energy has neither clause and says only that OED is subject to GRAMA.

In plain termsThis is the earliest signed agreement between the State of Utah and Valar found in public records. It is not a contract: it only says both sides will explore putting a test reactor and a uranium-fuel making operation at the state's energy lab in Emery County, with the reactor running by July 2026. It also says the agreement and 'related information' are confidential, that the state needs Valar's sign-off before disclosing things, and that neither side will publicize the deal without the other's consent. Utah's public-records law still overrides that. The agreement's own text went up on the energy office's website in January 2026, but the project itself was publicly discussed within weeks of the signing: after news reports, Emery County held a noticed public hearing on nuclear industries (17 June 2025, gov-020), and the next day a legislative committee heard an agenda item titled 'Valar Atomics Nuclear Test Reactor', where the state's slides gave the MOU's signing date (gov-040). And from the first day, the plan named the Energy Department's rules and did not mention the NRC. The state's energy office puts similar confidentiality terms in some of its agreements with other nuclear companies, so these terms are not unique to Valar.
verified 2026-10-02: Re-read both pages of the Valar MOU in late September 2026 (clauses 1-12, signature note) and re-read the Deployable, Oklo and Nuclea MOUs and the media upload record (12 Jan 2026). Holds; added clause 4's own GRAMA acknowledgment. Corrected 2026-10-01: wording made more exact against the cited records.
company claimreported Design lineage: 'Ward One' was a 100 kWt TRISO HTGR planned for under a month of operation
2025-04-07 · orig-017 · Valar Atomics, Isaiah Taylor, Ward One

The April 2025 lawsuit post describes Ward One as a 100 kWt high-temperature gas reactor using TRISO fuel, named, the founder writes, after a Manhattan Project-era relative of his, with a planned operating life of less than a month. It says the design relies on strong negative thermal reactivity feedback and low power density for fully passive decay-heat removal, and claims that holding its spent fuel for five minutes would give the same radiation exposure as a CAT (CT) scan. The later Ward 250 carries the same 100 kWt figure, which suggests Ward 250 grew out of the Ward One concept, though no source read says so directly. Ward One itself was still unbuilt in the Philippines as of April 2026. For scale: a CT scan is about 1 to 10 millisieverts (FDA), so five minutes would need 12 to 120 millisieverts an hour; the post gives no amount of fuel, cooling time, distance or shielding.

In plain termsWard One was Valar's first planned uranium reactor: very small (100 kilowatts of heat) and meant to run for less than a month. It was to be built in the Philippines; as of April 2026 it had not been built there.
verified 2026-10-02: Second check, late September 2026: post re-read; 100 kWt, TRISO, under-a-month life, passive decay-heat wording and the spent-fuel claim match (the post says 'CAT scan'). Quote exact; relative still unnamed. Revised before publication (late September 2026): added the CT-scan dose-rate scale (12-120 mSv/h over five minutes). Revised before publication (2026-09-30): reworded the detail in neutral terms.
recordreported Valar's suit against the NRC: joined April 2025 to exempt small reactors from NRC licensing; paused for settlement talks
2025-04-07 · safe-028 · Valar Atomics, Nuclear Regulatory Commission, State of Utah, State of Texas, Last Energy, Deep Fission

Valar's post of 7 April 2025 announces that it joined Texas, Utah, Louisiana, Florida and Arizona (the court filing names the Arizona Legislature), with Last Energy and Deep Fission, in a lawsuit against the NRC. As Valar describes it, the suit argues that the Atomic Energy Act of 1954 limits NRC licensing to reactors significant to defense or public health and safety, and that the 1956 'Utilization Facility Rule', issued by the NRC's predecessor, the Atomic Energy Commission, which requires a license for any reactor, exceeds that authority; Valar says its planned 'Ward One' reactor is named in the suit and that states have begun creating regulatory bodies to host such tests. The Louisiana Department of Environmental Quality's release of 8 April 2025 says the case was filed by Texas, Utah and Last Energy (on 30 December 2024, per the NRC's litigation status report) and positions Louisiana to benefit from a favorable ruling or settlement. E&E News (23 July 2025) reports the case is in the U.S. District Court for the Eastern District of Texas, that the NRC first moved to dismiss it, and that in June 2025 the NRC joined the plaintiffs in asking the court to extend a stay to 29 September 2025 to seek 'a mutually agreeable resolution'; the court granted it on 30 June. E&E also reports Valar had not contacted or met with the NRC, with Taylor asking why a company that believes the jurisdiction is wrong would engage. The NRC's litigation status report, current to 27 January 2026, says the case had been placed in abeyance at the parties' request; on 26 January 2026 the parties asked for 45 more days, and the court had not yet acted. A commercial copy of the court docket lists a joint status report filed on 2 September 2026 as its latest entry, with no dismissal or settlement shown; that report's text was not found in the records we checked as of 2 October 2026. Ward 250 itself went forward under DOE authorization, not under the state-regulation model the suit argued for.

In plain termsIn 2025 Valar and several states sued the federal nuclear regulator, arguing small reactors should not need its license at all. By mid-2025 both sides had paused the case to try to settle. In January 2026 the NRC reported that the case was still on hold, and a copy of the court record shows the parties filed another joint progress report on 2 September 2026, with no settlement or dismissal shown. Meanwhile the company got its reactor approved a different way: through DOE, not through the states.
verified 2026-10-02: Re-read Valar's 7 April 2025 post, the Louisiana DEQ release (8 April 2025) and E&E News (23 July 2025) in late September 2026. Holds. The date is Valar's joining, not E&E's report date. Revised before publication (late September 2026): 1956 rule attributed to the Atomic Energy Commission, the NRC's predecessor.
recordconfirmed Valar's 'Ward Zero Whitepaper' page holds no Ward Zero data: its text is a 2019 essay by another author, word for word
2024-12-01 · orig-058 · Valar Atomics, Cairo Review of Global Affairs, Ward Zero

Valar's website has a page titled 'Ward Zero Whitepaper', subtitled as a detailed account of how its first prototype reactor works, dated December 1, 2024 and credited to Isaiah Taylor, Kip Mock and Mark Mitchell. It is not listed in the library but loads at its public URL (read in late September 2026), and its entry is carried in the data that the Ward 250 page loads. Its body says nothing about Ward Zero. Every one of its body sentences matches, word for word, 'A Nuclear Curse and a Nuclear Blessing', an essay on Russian and Chinese reactor exports to the Middle East by Selim Sazak in the Fall 2019 issue of the Cairo Review of Global Affairs; the page names no source and still says the UAE's Barakah plant is expected to be fully operational by 2020. Archived copies show the same text on the page in April 2025, beside three other unlisted posts whose bodies read only 'Lorem ipsum', and again in October 2025, by when the placeholder posts were gone. That fits leftover placeholder text rather than a finished paper (Valar has not said); the record does not show why it was used or why it remains. Either way, the one document Valar titled as a technical account of Ward Zero contains none (orig-059).

In plain termsValar's safety documents lean on tests of its non-nuclear prototype, Ward Zero. The only page on its website titled as a Ward Zero 'whitepaper' contains no Ward Zero information; its text matches, word for word, a 2019 magazine essay by another author about Middle East politics. The page is not listed in the site's menus and may be leftover placeholder text (Valar has not said), but it means no technical paper on Ward Zero was found in public records (as of late September 2026).
verified 2026-10-02: Second check, late September 2026: live page, Cairo Review essay (Selim Sazak, Fall 2019) and April and October 2025 archives re-read; all body sentences found verbatim in the essay. Cross-reference fixed and the October 2025 capture, which the detail relied on, added. Revised before publication (late September 2026): wording on the unlisted page and the 2019 essay restated; placeholder reading attributed as unconfirmed; source title parenthetical now 'not listed in Valar's library'.