Page-verified permit transcription

QTS Investment Properties Manassas LLC

Prince William County, Virginia

QA status VerifiedRelease dated July 29, 2026

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EVIDENCE NOTE

What the public record says

A manually verified transcription of equipment groups and permit limits stated in Virginia DEQ permit 74161-5, 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. 3 ↗, p. 4 ↗.

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

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
`Gen01-Gen20`	emergency engine gen-setMTU · 16V4000G83L	20 units2250 kW each	diesel fuel oil unless noted in permitengine design / good operating practice	See operating-scope table—	p. 5 ↗
`Gen21-Gen52`	emergency engine gen-setMTU · 20V4000G64S	32 units2500 kW each	diesel fuel oil unless noted in permitengine design / good operating practice	See operating-scope table—	p. 5 ↗
`Gen53`	emergency engine gen-setMTU · 12V4000G24S	1 units1600 kW each	diesel fuel oil unless noted in permitengine design / good operating practice	See operating-scope table—	p. 5 ↗
`Gen54, Gen138 and Gen159`	emergency engine gen-setCaterpillar · C32	3 units1250 kW each	diesel fuel oil unless noted in permitengine design / good operating practice	See operating-scope table—	p. 5 ↗
`Gen55-Gen137 and Gen139-Gen158`	emergency engine gen-setMTU / Caterpillar · 16V4000G84S and/or 3516C	103 units2250 or 2500 kW each	diesel fuel oil unless noted in permitengine design / good operating practice	See operating-scope table—	p. 5 ↗

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
`Gen01-Gen20`	500 hours/year per unit	all purposesCondition 8.	p. 9 ↗
`Gen01-Gen20`	100 hours/year per unit	scheduled MCRT plus unscheduled maintenance/testing/trainingCondition 8.	p. 9 ↗
`Gen01-Gen20`	500 hours/year combined	scheduled MCRTCondition 8.	p. 9 ↗
`Gen21-Gen159`	30 hours/year per unit	scheduled MCRTCondition 9.	p. 9 ↗
`Gen21-Gen159`	500 hours/year per unit	all purposesCondition 9.	p. 9 ↗

Permitted emission limits

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

Inspect 45 transcribed limit rows

Reference	Pollutant	Limit	Basis / scope	Source
`Gen01-Gen20`	NOx as NO2emergency	43.0 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen01-Gen20`	COemergency	6.6 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen01-Gen20`	VOCemergency	1.32 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen01-Gen20`	PMemergency	0.59 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen01-Gen20`	PM10emergency	0.73 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen01-Gen20`	PM2.5emergency	0.73 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen21-Gen52`	NOx as NO2emergency	48.6 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen21-Gen52`	COemergency	11.84 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen21-Gen52`	VOCemergency	2.27 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen21-Gen52`	PMemergency	0.94 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen21-Gen52`	PM10emergency	1.12 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen21-Gen52`	PM2.5emergency	1.12 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen53`	NOx as NO2emergency	29.2 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen53`	COemergency	5.0 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen53`	VOCemergency	1.37 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen53`	PMemergency	0.39 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen53`	PM10emergency	0.46 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen53`	PM2.5emergency	0.46 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen54,Gen138,Gen159`	NOx as NO2emergency	24.09 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen54,Gen138,Gen159`	COemergency	2.1 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen54,Gen138,Gen159`	VOCemergency	0.4 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen54,Gen138,Gen159`	PMemergency	0.24 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen54,Gen138,Gen159`	PM10emergency	0.27 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen54,Gen138,Gen159`	PM2.5emergency	0.27 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / Caterpillar 3516C`	NOx as NO2emergency	48.06 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / Caterpillar 3516C`	COemergency	6.09 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / Caterpillar 3516C`	VOCemergency	1.21 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / Caterpillar 3516C`	PMemergency	0.4 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / Caterpillar 3516C`	PM10emergency	0.59 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / Caterpillar 3516C`	PM2.5emergency	0.59 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / MTU 16V4000G84S`	NOx as NO2emergency	44.35 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / MTU 16V4000G84S`	COemergency	9.37 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / MTU 16V4000G84S`	VOCemergency	2.2 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / MTU 16V4000G84S`	PMemergency	0.78 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / MTU 16V4000G84S`	PM10emergency	0.92 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen55-Gen137,Gen139-Gen158 / MTU 16V4000G84S`	PM2.5emergency	0.92 lb/hrhourly	per unitemergency operation	p. 11 ↗
`Gen01-Gen159`	NOx as NO2facility-wide	98.09 tpyannual	all units combinedall purposes	p. 12 ↗
`Gen01-Gen159`	COfacility-wide	51.14 tpyannual	all units combinedall purposes	p. 12 ↗
`Gen01-Gen159`	VOCfacility-wide	17.95 tpyannual	all units combinedall purposes	p. 12 ↗
`Gen01-Gen159`	PMfacility-wide	5.37 tpyannual	all units combinedall purposes	p. 12 ↗
`Gen01-Gen159`	PM10facility-wide	5.73 tpyannual	all units combinedall purposes	p. 12 ↗
`Gen01-Gen159`	PM2.5facility-wide	5.73 tpyannual	all units combinedall purposes	p. 12 ↗
`Gen01-Gen159`	visible emissionsstated opacity limit	5 percent opacityvisible	per exhaust/sourcenormal operation	p. 12 ↗
`Gen01-Gen159`	visible emissionsstated opacity limit	10 percent opacityvisible	per exhaust/sourceone six-minute period in any one hour; also startup/shutdown baseline	p. 12 ↗
`Gen01-Gen159`	visible emissionsstated opacity limit	20 percent opacityvisible	per exhaust/sourceone six-minute period in any one hour during startup/shutdown	p. 12 ↗

DOCUMENT HISTORY

What this document says it changes

combined minor NSR permit

Explicitly supersedes the document dated 2024-10-01.

p. 3 ↗, p. 4 ↗

QA NOTES

Ambiguity stays visible

Transcribed from exact official PDF; source page is 1-based PDF position.

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