Page-cited permit extraction

Vantage Data Center VA3 LLC

Loudoun Co., Virginia

QA status Machine-extractedRelease dated July 29, 2026

EVIDENCE NOTE

What the public record says

A machine-extracted candidate of equipment groups and permit limits stated in Virginia DEQ permit 74284-2, 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.

MACHINE-EXTRACTED CANDIDATE

Equipment and limits,
kept separate from actual use.

These page-cited rows are machine-extracted and still require a second manual review. Verify every reused value against the linked official PDF. Page numbers refer to the one-based position in the linked PDF. Blank values are not zero.

Permitted equipment

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

Reference	Equipment / model	Count / rating	Fuel / controls	Stated operating field	Source
`GEN-1 through GEN-60`	non-emergency engine generator setVolvo · Penta TWD1673 GE	60 units625 or 560 kW each	diesel fuel oilselective catalytic reduction (SCR)	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`EG-1 through EG-17`	emergency engine generator setKohler · KD2800	17 units3010 kW each	diesel fuel oil—	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.

Operating scope

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

Reference	Limit	Basis	Source
`EG-1 through EG-17`	29 hours/year	Vantage Data Centers VA3, LLC Registration Number: 74284 January 5, 2026 Page 8 10. Operating Hours – Emergency Engine Gen-Sets – Each individual emergency diesel engine gen-set (Ref. Nos. EG-1 through EG-17) shall not operate more than 29 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT, as provided in Condition 5.c). Each individual emergency diesel engine gen-set (Ref. Nos. EG-1 through EG-17) shall not operate more than 500 hoursMachine-extracted normative operating-hours statement; second review pending.	p. 10 ↗
`EG-1 through EG-17`	500 hours/year	17) shall not operate more than 29 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT, as provided in Condition 5.c). Each individual emergency diesel engine gen-set (Ref. Nos. EG-1 through EG-17) shall not operate more than 500 hours per year for all purposes (as provided in Condition 5) combined. The annual limits for hours of operation shall be calculated monthly as the sum of each consecutive 12-month period. Compliance for the consecutive 12-month periodMachine-extracted normative operating-hours statement; second review pending.	p. 10 ↗
`GEN-1 through GEN-60`	37 hours/year	h to the individual monthly totals for the preceding 11 months. (9VAC5-80-1180) [3/27/2024] 11. Operating Hours – Non-Emergency Engine Gen-Sets – a. The non-emergency diesel engine gen-sets (Ref. Nos. GEN-1 through GEN-60) combined shall not operate more than 37 hours per year when emissions are uncontrolled, calculated daily as the sum of each consecutive 365-day period. b. The non-emergency diesel engine gen-sets (Ref. Nos. GEN-1 through GEN-60) combined shall not operate more than 311,769Machine-extracted normative operating-hours statement; second review pending.	p. 10 ↗
`GEN-1 through GEN-60`	769 hours/year	hall not operate more than 37 hours per year when emissions are uncontrolled, calculated daily as the sum of each consecutive 365-day period. b. The non-emergency diesel engine gen-sets (Ref. Nos. GEN-1 through GEN-60) combined shall not operate more than 311,769 hours per year when emissions are controlled with SCR, calculated daily as the sum of each consecutive 365-day period. The annual limits for hours of operation shall be calculated daily as the sum of each consecutive 365-day period. CMachine-extracted normative operating-hours statement; second review pending.	p. 10 ↗

Permitted emission limits

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

Inspect 27 transcribed limit rows

Reference	Pollutant	Limit	Basis / scope	Source
`Ref. Nos. EG-1 through EG-17`	NOx as NO2—	53.09 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17`	NOx as NO2—	13.61 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17`	VOC—	2.85 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17`	PM10—	0.99 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17`	PM2.5—	0.99 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	NOx as NO2uncontrolled	9.37 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Controlled by SCR`	NOx as NO2controlled	0.50 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	NOx as NO2uncontrolled	0.39 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	VOCuncontrolled	0.01 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	PM10uncontrolled	0.08 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	PM2.5uncontrolled	0.08 lb/hrhourly	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17`	NOx as NO2—	17.71 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	NOx as NO2uncontrolled	0.17 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Controlled by SCR`	NOx as NO2controlled	77.94 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17 and GEN-1 through GEN-60`	NOx as NO2—	95.82 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17`	NOx as NO2—	12.38 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	NOx as NO2uncontrolled	60.80 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17 and GEN-1 through GEN-60`	NOx as NO2—	73.18 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17`	VOC—	4.33 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	VOCuncontrolled	1.56 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17 and GEN-1 through GEN-60`	VOC—	5.89 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17`	PM10—	0.90 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	PM10uncontrolled	12.47 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17 and GEN-1 through GEN-60`	PM10—	13.37 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17`	PM2.5—	0.90 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. GEN-1 through GEN-60 Uncontrolled by SCR`	PM2.5uncontrolled	12.47 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. EG-1 through EG-17 and GEN-1 through GEN-60`	PM2.5—	13.37 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.

DOCUMENT HISTORY

What this document says it changes

amended or superseding permit document

Explicitly supersedes the document dated 2024-03-27.

p. 1 ↗, p. 3 ↗

QA NOTES

Ambiguity stays visible

Machine-extracted candidate. Verify every reused value against the cited official PDF page.
Verify table column grouping and any alternative models.
Confirm whether the limit is per unit, combined, or limited to testing/maintenance.
Confirm multi-row and merged-column header association.

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