Page-cited permit extraction

Vantage Data Centers VA11, VA12, VA13, VA14, & VA15

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 74162-5, 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

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

ReferenceEquipment / modelCount / ratingFuel / controlsStated operating fieldSource
EG-75 through EG-123emergency engine generator setCaterpillar · 3516E49 units2750 kW eachdiesel fuel oilSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
EG-42 through EG-74emergency engine generator setCaterpillar · 3516E33 units2750 kW eachdiesel fuel oilSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
EG-22 through EG-41emergency engine generator setCaterpillar · 3516E20 units2750 kW eachdiesel fuel oilSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
EG-7 through EG-21emergency engine generator setCaterpillar · 3516E15 units2750 kW eachdiesel fuel oilSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
EG-1through EG-4emergency engine generator setCaterpillar · 3516E4 units2750 kW eachdiesel fuel oilSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
EG-5, EG-6emergency engine generator setCaterpillar · C152 units500 kW eachdiesel fuel oilSee operating-scope tablep. 5Machine-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.

ReferenceLimitBasisSource
500 hours/yearunit is fully integrated with the sources electrical system. (9 VAC 5-80-1180) 7. Operating Hours – The operating hours of the emergency diesel engine gen-sets (Nos. EG-1 through EG-123) are limited to the following: a. No single unit shall operate more than 500 hours per year for all purposes (as provided in Condition 6), calculated daily as the sum of each consecutive 365-day period; and b. No single unit shall operate more than 29 hours per year for scheduled maintenance checks and readineMachine-extracted normative operating-hours statement; second review pending.p. 8
29 hours/yearugh EG-123) are limited to the following: a. No single unit shall operate more than 500 hours per year for all purposes (as provided in Condition 6), calculated daily as the sum of each consecutive 365-day period; and b. No single unit shall operate more than 29 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT) (as provided in Condition 6.c.), calculated daily as the sum of each consecutive 365-day period. Compliance for the consecutive 365-day period shalMachine-extracted normative operating-hours statement; second review pending.p. 8

Permitted emission limits

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

Inspect 15 transcribed limit rows
ReferencePollutantLimitBasis / scopeSource
Caterpillar 3516E (Ref. Nos. EG-1 through EG-4 and EG-7 through EG-123)NOx as NO253.48 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar C15 (Ref. Nos. EG-5 and EG-6)NOx as NO28.30 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516E (Ref. Nos. EG-1 through EG-4 and EG-7 through EG-123)NOx as NO210.34 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar C15 (Ref. Nos. EG-5 and EG-6)NOx as NO22.20 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516E (Ref. Nos. EG-1 through EG-4 and EG-7 through EG-123)VOC1.25 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar C15 (Ref. Nos. EG-5 and EG-6)VOC0.10 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516E (Ref. Nos. EG-1 through EG-4 and EG-7 through EG-123)PM101.01 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar C15 (Ref. Nos. EG-5 and EG-6)PM100.19 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516E (Ref. Nos. EG-1 through EG-4 and EG-7 through EG-123)PM2.51.01 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar C15 (Ref. Nos. EG-5 and EG-6)PM2.50.19 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516E and Caterpillar C15 (Ref. Nos. EG-1 through EG-123) All Operations (123 units combined)NOx as NO293.50 tpyannualcombinedp. 11Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516E and Caterpillar C15 (Ref. Nos. EG-1 through EG-123) All Operations (123 units combined)NOx as NO244.40 tpyannualcombinedp. 11Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516E and Caterpillar C15 (Ref. Nos. EG-1 through EG-123) All Operations (123 units combined)VOC6.50 tpyannualcombinedp. 11Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516E and Caterpillar C15 (Ref. Nos. EG-1 through EG-123) All Operations (123 units combined)PM103.80 tpyannualcombinedp. 11Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516E and Caterpillar C15 (Ref. Nos. EG-1 through EG-123) All Operations (123 units combined)PM2.53.80 tpyannualcombinedp. 11Machine-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 2022-01-19.

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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