Page-cited permit extraction

Capital One Services Incorporated

Henrico 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 52281-10, 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
`G-8/DG#3`	engine generator setCaterpillar · 3516	— units1750 kW each	diesel fuel oil—	See operating-scope table—	p. 4 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`G-9/DG#4`	engine generator setCaterpillar · 3516	— units1750 kW each	diesel fuel oil—	See operating-scope table—	p. 4 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`G-11`	engine generator setCaterpillar · 3516C	— units1825 kW each	diesel fuel oil—	See operating-scope table—	p. 4 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`G-12`	engine generator setCaterpillar · 3516C	— units1825 kW each	diesel fuel oil—	See operating-scope table—	p. 4 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`G-13`	engine generator setCaterpillar · 3516C	— units1825 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
	240 hours/year	6C Diesel 1,825 kW N/A Generator Specifications included in the above table are for informational purposes only and do not form enforceable terms or conditions of the permit. PROCESS LIMITATIONS 1. Operating limits - Each generator shall not operate more than 240 hours per year, calculated monthly as the sum of each consecutive 12-month period. (9 VAC 5-80-1180 and 9 VAC 5-50-260) 2. Emission Controls - The emissions from each generator shall be controlled by good operating practices. The geneMachine-extracted normative operating-hours statement; second review pending.	p. 5 ↗

Permitted emission limits

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

Inspect 19 transcribed limit rows

Reference	Pollutant	Limit	Basis / scope	Source
`two Caterpillar Model 3516 generators (G-8/DG#3 and G-9/DG#4) located at Knolls 2 Data Center`	PM—	1.6 lb/hrhourly	——	p. 6 ↗Machine-extracted from a page line in an older official PDF; literal context: limits specified below: Per generator: Combined: PM-10 1.6 lbs/hr 1.2 tons/yr Nitrogen Oxides (as NO ) 55.3 lbs/hr 39.8 tons/yr
`two Caterpillar Model 3516 generators (G-8/DG#3 and G-9/DG#4) located at Knolls 2 Data Center`	PM—	1.2 lb/hrhourly	——	p. 6 ↗Machine-extracted from a page line in an older official PDF; literal context: limits specified below: Per generator: Combined: PM-10 1.6 lbs/hr 1.2 tons/yr Nitrogen Oxides (as NO ) 55.3 lbs/hr 39.8 tons/yr
`two Caterpillar Model 3516 generators (G-8/DG#3 and G-9/DG#4) located at Knolls 2 Data Center`	NOx as NO2—	55.3 lb/hrhourly	——	p. 6 ↗Machine-extracted from a page line in an older official PDF; literal context: Per generator: Combined: PM-10 1.6 lbs/hr 1.2 tons/yr Nitrogen Oxides (as NO ) 55.3 lbs/hr 39.8 tons/yr 2
`two Caterpillar Model 3516 generators (G-8/DG#3 and G-9/DG#4) located at Knolls 2 Data Center`	NOx as NO2—	39.8 lb/hrhourly	——	p. 6 ↗Machine-extracted from a page line in an older official PDF; literal context: Per generator: Combined: PM-10 1.6 lbs/hr 1.2 tons/yr Nitrogen Oxides (as NO ) 55.3 lbs/hr 39.8 tons/yr 2
`two Caterpillar Model 3516 generators (G-8/DG#3 and G-9/DG#4) located at Knolls 2 Data Center`	NOx as NO2—	12.7 lb/hrhourly	——	p. 6 ↗Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (as NO ) 55.3 lbs/hr 39.8 tons/yr 2 Carbon Monoxide 12.7 lbs/hr 9.1 tons/yr Volatile Organic Compounds 1.6 lbs/hr 1.2 tons/yr
`two Caterpillar Model 3516 generators (G-8/DG#3 and G-9/DG#4) located at Knolls 2 Data Center`	NOx as NO2—	9.1 lb/hrhourly	——	p. 6 ↗Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (as NO ) 55.3 lbs/hr 39.8 tons/yr 2 Carbon Monoxide 12.7 lbs/hr 9.1 tons/yr Volatile Organic Compounds 1.6 lbs/hr 1.2 tons/yr
`two Caterpillar Model 3516 generators (G-8/DG#3 and G-9/DG#4) located at Knolls 2 Data Center`	VOC—	1.6 lb/hrhourly	——	p. 6 ↗Machine-extracted from a page line in an older official PDF; literal context: 2 Carbon Monoxide 12.7 lbs/hr 9.1 tons/yr Volatile Organic Compounds 1.6 lbs/hr 1.2 tons/yr (9 VAC 5-80-1180 and 9 VAC 5-50-260)
`two Caterpillar Model 3516 generators (G-8/DG#3 and G-9/DG#4) located at Knolls 2 Data Center`	VOC—	1.2 lb/hrhourly	——	p. 6 ↗Machine-extracted from a page line in an older official PDF; literal context: 2 Carbon Monoxide 12.7 lbs/hr 9.1 tons/yr Volatile Organic Compounds 1.6 lbs/hr 1.2 tons/yr (9 VAC 5-80-1180 and 9 VAC 5-50-260)
`three Caterpillar Model 3516C generators (G-11 – G-13) located at Knolls 2 Data Center Addition`	PM—	4.1 lb/hrhourly	——	p. 7 ↗Machine-extracted from a page line in an older official PDF; literal context: limits specified below: Per generator: Combined: PM-10 4.1 lbs/hr 1.5 tons/yr Nitrogen Oxides (as NO ) 32.9 lbs/hr 11.9 tons/yr
`three Caterpillar Model 3516C generators (G-11 – G-13) located at Knolls 2 Data Center Addition`	PM—	1.5 lb/hrhourly	——	p. 7 ↗Machine-extracted from a page line in an older official PDF; literal context: limits specified below: Per generator: Combined: PM-10 4.1 lbs/hr 1.5 tons/yr Nitrogen Oxides (as NO ) 32.9 lbs/hr 11.9 tons/yr
`three Caterpillar Model 3516C generators (G-11 – G-13) located at Knolls 2 Data Center Addition`	NOx as NO2—	32.9 lb/hrhourly	——	p. 7 ↗Machine-extracted from a page line in an older official PDF; literal context: Per generator: Combined: PM-10 4.1 lbs/hr 1.5 tons/yr Nitrogen Oxides (as NO ) 32.9 lbs/hr 11.9 tons/yr 2
`three Caterpillar Model 3516C generators (G-11 – G-13) located at Knolls 2 Data Center Addition`	NOx as NO2—	11.9 lb/hrhourly	——	p. 7 ↗Machine-extracted from a page line in an older official PDF; literal context: Per generator: Combined: PM-10 4.1 lbs/hr 1.5 tons/yr Nitrogen Oxides (as NO ) 32.9 lbs/hr 11.9 tons/yr 2
`three Caterpillar Model 3516C generators (G-11 – G-13) located at Knolls 2 Data Center Addition`	NOx as NO2—	21.8 lb/hrhourly	——	p. 7 ↗Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (as NO ) 32.9 lbs/hr 11.9 tons/yr 2 Carbon Monoxide 21.8 lbs/hr 7.9 tons/yr Volatile Organic Compounds 3.6 lbs/hr 1.3 tons/yr
`three Caterpillar Model 3516C generators (G-11 – G-13) located at Knolls 2 Data Center Addition`	NOx as NO2—	7.9 lb/hrhourly	——	p. 7 ↗Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (as NO ) 32.9 lbs/hr 11.9 tons/yr 2 Carbon Monoxide 21.8 lbs/hr 7.9 tons/yr Volatile Organic Compounds 3.6 lbs/hr 1.3 tons/yr
`three Caterpillar Model 3516C generators (G-11 – G-13) located at Knolls 2 Data Center Addition`	VOC—	3.6 lb/hrhourly	——	p. 7 ↗Machine-extracted from a page line in an older official PDF; literal context: 2 Carbon Monoxide 21.8 lbs/hr 7.9 tons/yr Volatile Organic Compounds 3.6 lbs/hr 1.3 tons/yr (9 VAC 5-80-1180 and 9 VAC 5-50-260)
`three Caterpillar Model 3516C generators (G-11 – G-13) located at Knolls 2 Data Center Addition`	VOC—	1.3 lb/hrhourly	——	p. 7 ↗Machine-extracted from a page line in an older official PDF; literal context: 2 Carbon Monoxide 21.8 lbs/hr 7.9 tons/yr Volatile Organic Compounds 3.6 lbs/hr 1.3 tons/yr (9 VAC 5-80-1180 and 9 VAC 5-50-260)
`three Caterpillar Model 3516C generators (G-11 – G-13) located at Knolls 2 Data Center Addition`	visible emissions—	20 percent opacityvisible	——	p. 7 ↗Machine-extracted from a page line in an older official PDF; literal context: 10. Visible Emissions Limit - Visible emissions from each generator stack shall not exceed 10 percent opacity except during one six-minute period in any one hour in which visible emissions shall not exceed 20 percent opacity. This condition applies at all times except during start-up, shutdown, or malfunction.
	visible emissions—	10 percent opacityvisible	per exhaust/source—	p. 7 ↗Machine-extracted normative visible-emission limit; second review pending.
	visible emissions—	20 percent opacityvisible	per exhaust/source—	p. 7 ↗Machine-extracted normative visible-emission limit; second review pending.

DOCUMENT HISTORY

What this document says it changes

amended or superseding permit document

Explicitly supersedes the document dated 2025-07-10.

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.
Older-PDF text fallback; verify row and unit alignment.
Confirm normal-operation versus startup/shutdown exception.

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