Page-cited permit extraction

Microsoft Corporation - Timber Data Center

Mecklenburg 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 52903-4, 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

5 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
`ENG85-ENG104, ENG106-ENG125, ENG127-ENG138`	engine generator setCaterpillar · C175-16 backup	52 units3100 kW each	——	See operating-scope table—	p. 4 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG105, ENG126, ENG139`	engine generator setCaterpillar · C15 backup	3 units500 kW each	——	See operating-scope table—	p. 4 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG42`	engine generator setCaterpillar · C18 backup	1 units750 kW each	——	See operating-scope table—	p. 4 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG1-ENG20, ENG22- ENG41, ENG43-ENG62, ENG64-ENG83`	engine generator setCaterpillar · C175-16 backup	80 units3100 kW each	——	See operating-scope table—	p. 4 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG21, ENG63, ENG84`	engine generator setCaterpillar · C15 backup	3 units500 kW each	——	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

Permitted emission limits

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

Inspect 22 transcribed limit rows

Reference	Pollutant	Limit	Basis / scope	Source
`ENG1-ENG20, ENG22-ENG41, ENG43- ENG62, ENG64-ENG83, ENG85-ENG104, ENG106- ENG125, ENG127-ENG138 Caterpillar Model C175-16`	PM—	0.8 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG21, ENG63, ENG84, ENG105, ENG126, ENG139 Caterpillar C15`	PM—	0.2 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG42 Caterpillar C18`	PM—	0.2 lb/hrhourly	——	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG1-ENG20, ENG22-ENG41, ENG43- ENG62, ENG64-ENG83, ENG85-ENG104, ENG106- ENG125, ENG127-ENG138 Caterpillar Model C175-16`	PM—	0.9 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG1-ENG20, ENG22-ENG41, ENG43- ENG62, ENG64-ENG83, ENG85-ENG104, ENG106- ENG125, ENG127-ENG138 Caterpillar Model C175-16`	NOx as NO2—	57.8 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG21, ENG63, ENG84, ENG105, ENG126, ENG139 Caterpillar C15`	NOx as NO2—	8.3 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG42 Caterpillar C18`	NOx as NO2—	14.3 lb/hrhourly	——	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG1-ENG20, ENG22-ENG41, ENG43- ENG62, ENG64-ENG83, ENG85-ENG104, ENG106- ENG125, ENG127-ENG138 Caterpillar Model C175-16`	NOx as NO2—	7.5 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG21, ENG63, ENG84, ENG105, ENG126, ENG139 Caterpillar C15`	NOx as NO2—	2.2 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG42 Caterpillar C18`	NOx as NO2—	1.3 lb/hrhourly	——	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG1-ENG20, ENG22-ENG41, ENG43- ENG62, ENG64-ENG83, ENG85-ENG104, ENG106- ENG125, ENG127-ENG138 Caterpillar Model C175-16`	VOC—	1.0 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG21, ENG63, ENG84, ENG105, ENG126, ENG139 Caterpillar C15`	VOC—	0.1 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG42 Caterpillar C18`	VOC—	0.3 lb/hrhourly	——	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG1-ENG20, ENG22-ENG41, ENG43- ENG62, ENG64-ENG83, ENG85-ENG104, ENG106- ENG125, ENG127-ENG138 Caterpillar Model C175-16`	SO2—	0.6 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG21, ENG63, ENG84, ENG105, ENG126, ENG139 Caterpillar C15`	SO2—	0.01 lb/hrhourly	per unit—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG42 Caterpillar C18`	SO2—	0.01 lb/hrhourly	——	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	PM—	3.7 tpyannual	combined—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	PM—	4.1 tpyannual	combined—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	96.3 tpyannual	combined—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	24.2 tpyannual	combined—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	VOC—	4.0 tpyannual	combined—	p. 7 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	SO2—	1.0 tpyannual	combined—	p. 7 ↗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 2023-06-15.

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 multi-row and merged-column header association.

← Return to evidence index