Page-verified permit transcription

Yondr Data Center

Loudoun County, Virginia

QA status VerifiedRelease dated July 29, 2026

EVIDENCE NOTE

What the public record says

A manually verified transcription of equipment groups and permit limits stated in Virginia DEQ permit 74265-2, with one-based PDF page citations. Permitted terms do not establish actual operation or emissions.

Primary sourceVirginia DEQ permit document

Virginia Department of Environmental Quality

Open original source ↗

Summary fields cite p. 1, p. 3.

What this record does not establish

The source confirms the document and its stated fields. This profile does not infer actual emissions, compliance history, operating status, facility capacity or environmental impact where those facts are not established by the cited document.

How to read the status

Issued means the agency granted the permit subject to its conditions. It does not mean every permitted unit is operating, that maximum permitted emissions occur, or that later amendments do not exist.

VERIFIED PERMIT TERMS

Equipment and limits,
kept separate from actual use.

This is a conservative transcription of reviewed permit sections, not an exhaustive legal digest. Page numbers refer to the one-based position in the linked PDF. Blank values are not zero.

Permitted equipment

3 document-defined equipment groups. Counts and per-unit ratings are transcribed; combined capacity is not calculated.

ReferenceEquipment / modelCount / ratingFuel / controlsStated operating fieldSource
EG-01-EG-40emergency diesel engine-generator setMTU · 16V4000G84S40 units2250 kW eachdieselSee operating-scope tablep. 4
EG-41-EG-55emergency diesel engine-generator setMTU · 16V4000G84S15 units2250 kW eachdieselSee operating-scope tablep. 4
EG-56-EG-80emergency diesel engine-generator setMTU · 16V4000G84S25 units2250 kW eachdieselSCR (Catalytic Combustion Emission Technologies)See operating-scope tablep. 4

Operating scope

Authorized hours, time windows or an explicit finding that no numeric annual-hour cap was located in the reviewed sections.

ReferenceLimitBasisSource

Permitted emission limits

3 pollutant, unit-group and limit rows. These are permit terms, not measured or actual emissions.

Inspect 3 transcribed limit rows
ReferencePollutantLimitBasis / scopeSource
EG-01-EG-55NOx as NO2not controlled by SCR44.4 lb/hrhourlyper unitp. 10
EG-56-EG-80NOx as NO2controlled by SCR4.43 lb/hrhourlyper unitp. 10
EG-56-EG-80NOx as NO2not controlled by SCR44.33 lb/hrhourlyper unitp. 10

DOCUMENT HISTORY

What this document says it changes

permit amendment

Explicitly supersedes the document dated 2023-09-28.

p. 1, p. 3

QA NOTES

Ambiguity stays visible

  • facility_address left blank — Official PDF searchable result verified permit identity and limits; address was not reliably machine-readable.
  • Value transcribed from official permit equipment/condition table; no totals calculated.
  • Directly stated permitted limit; not an actual emissions value.
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