Page-cited permit extraction

Microsoft Corporation - East Coast Data Center

Mecklenburg Co., Virginia

QA status Machine-extractedRelease dated July 29, 2026

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EVIDENCE NOTE

What the public record says

A machine-extracted candidate of equipment groups and permit limits stated in Virginia DEQ permit 21527-7, 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 ↗.

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

23 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
`ENG1 – ENG11 ENG1-STK1 through ENG- STK11`	engine generator setCaterpillar · Standby	— units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG17, ENG32, ENG45 ENG17-STK1, ENG32-STK1, ENG45-STK1`	engine generator setCaterpillar · Standby	— units1000 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG20, ENG31, ENG44 ENG20-STK1, ENG31-STK1, ENG44-STK1`	engine generator setCaterpillar · Standby	— units1500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG21 – ENG30, ENG34 – ENG43 ENG21-STK1 through ENG30-STK1; ENG34-STK1 through ENG43-STK1`	engine generator setCaterpillar · Standby	— units2000 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG46 – ENG61, ENG67 – ENG110 ENG46-STK1 through ENG61-STK1; ENG67-STK1 through ENG110-STK1`	engine generator setCummins · Standby	— units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG62 – ENG65 ENG62-STK1 through ENG65-STK1`	engine generator setCummins · Standby	— units2000 kW each	——	See operating-scope table—	p. 7 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG66 ENG66-STK1`	engine generator setCummins · Standby	— units750 kW each	——	See operating-scope table—	p. 7 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG113 – ENG 152 ENG113-STK1 through ENG152-STK1`	engine generator setCummins · Standby	— units3000 kW each	——	See operating-scope table—	p. 7 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG153 – ENG154 ENG153-STK1 through ENG154-STK1`	engine generator setCummins · Standby	— units1750 kW each	——	See operating-scope table—	p. 7 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG155 ENG155-STK1`	engine generator setCummins · Standby	— units800 kW each	——	See operating-scope table—	p. 7 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG156 – ENG160 ENG156-STK1 through ENG160-STK1`	engine generator setCaterpillar · Standby	— units2500 kW each	——	See operating-scope table—	p. 7 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG161 – ENG175 ENG161-STK1 through ENG175-STK1`	engine generator setCaterpillar · Standby	— units2500 kW each	——	See operating-scope table—	p. 8 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG1 –ENG11`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 33 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG21 – ENG30, ENG34 –ENG43`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 33 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG31, ENG44`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 33 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG32, ENG45`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 33 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG46 –ENG61`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 33 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG62 –ENG65`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 33 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG67 –ENG110`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 33 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG113 –ENG152`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 34 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG153 –ENG154`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 34 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG156 –160`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 34 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Tanks for ENG161 –ENG175`	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 34 ↗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

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

Inspect 73 transcribed limit rows

Reference	Pollutant	Limit	Basis / scope	Source
`ENG1 – ENG11 Caterpillar 3516C`	PM—	0.4 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG17, ENG32, ENG45 Caterpillar C32C`	PM—	0.2 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG20, ENG31, ENG44 Caterpillar 3512C`	PM—	0.4 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG21 – ENG30, ENG34 – ENG43 Caterpillar 3516C`	PM—	0.6 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG1 – ENG11 Caterpillar 3516C`	NOx as NO2—	51.1 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG17, ENG32, ENG45 Caterpillar C32C`	NOx as NO2—	19.4 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG20, ENG31, ENG44 Caterpillar 3512C`	NOx as NO2—	29.6 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG21 – ENG30, ENG34 – ENG43 Caterpillar 3516C`	NOx as NO2—	42.3 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG1 – ENG11 Caterpillar 3516C`	NOx as NO2—	6.1 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG17, ENG32, ENG45 Caterpillar C32C`	NOx as NO2—	2.8 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG20, ENG31, ENG44 Caterpillar 3512C`	NOx as NO2—	4.0 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG21 – ENG30, ENG34 – ENG43 Caterpillar 3516C`	NOx as NO2—	4.0 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG1 – ENG11 Caterpillar 3516C`	VOC—	1.2 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG17, ENG32, ENG45 Caterpillar C32C`	VOC—	0.3 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG20, ENG31, ENG44 Caterpillar 3512C`	VOC—	0.8 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG21 – ENG30, ENG34 – ENG43 Caterpillar 3516C`	VOC—	1.1 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	PM—	2.1 tpyannual	combined—	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	44.4 tpyannual	combined—	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	23.0 tpyannual	combined—	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	VOC—	5.1 tpyannual	combined—	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG46 – ENG61, ENG67 – ENG110 Cummins 2500DQKAN`	PM—	2.8 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG62 – ENG65 Cummins 2000DQKAB`	PM—	1.0 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	PM—	0.2 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG46 – ENG61, ENG67 – ENG110 Cummins 2500DQKAN`	NOx as NO2—	52.9 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG62 – ENG65 Cummins 2000DQKAB`	NOx as NO2—	39.2 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	NOx as NO2—	14.8 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG46 – ENG61, ENG67 – ENG110 Cummins 2500DQKAN`	NOx as NO2—	14.4 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG62 – ENG65 Cummins 2000DQKAB`	NOx as NO2—	5.3 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	NOx as NO2—	0.6 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG46 – ENG61, ENG67 – ENG110 Cummins 2500DQKAN`	VOC—	0.6 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG62 – ENG65 Cummins 2000DQKAB`	VOC—	0.9 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	VOC—	0.5 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG46 – ENG61, ENG67 – ENG110 Cummins 2500DQKAN`	SO2—	0.8 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG62 – ENG65 Cummins 2000DQKAB`	SO2—	0.7 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	SO2—	0.01 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG113 – ENG152 Cummins C3000D6e`	PM—	1.3 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG153 – ENG154 Cummins 1750DQAD`	PM—	1.0 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG 155 Cummins 800DQCC`	PM—	0.4 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG113 – ENG152 Cummins C3000D6e`	NOx as NO2—	63.6 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG153 – ENG154 Cummins 1750DQAD`	NOx as NO2—	45.1 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG 155 Cummins 800DQCC`	NOx as NO2—	21.6 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG113 – ENG152 Cummins C3000D6e`	NOx as NO2—	3.8 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG153 – ENG154 Cummins 1750DQAD`	NOx as NO2—	4.0 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG 155 Cummins 800DQCC`	NOx as NO2—	1.8 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG113 – ENG152 Cummins C3000D6e`	VOC—	1.5 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG153 – ENG154 Cummins 1750DQAD`	VOC—	1.0 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG 155 Cummins 800DQCC`	VOC—	0.8 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG113 – ENG152 Cummins C3000D6e`	SO2—	0.05 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG153 – ENG154 Cummins 1750DQAD`	SO2—	0.04 lb/hrhourly	per unit—	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG 155 Cummins 800DQCC`	SO2—	0.01 lb/hrhourly	——	p. 16 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	PM—	10.0 tpyannual	combined—	p. 17 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	171.0 tpyannual	combined—	p. 17 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	49.6 tpyannual	combined—	p. 17 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	VOC—	12.3 tpyannual	combined—	p. 17 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	SO2—	1.5 tpyannual	combined—	p. 17 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG156 – ENG160 Caterpillar 3516C`	NOx as NO2—	51.1 lb/hrhourly	per unit—	p. 21 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	7.3 tpyannual	combined—	p. 21 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG156 – ENG160 Caterpillar 3516C`	NOx as NO2—	6.1 lb/hrhourly	per unit—	p. 21 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	3.7 tpyannual	combined—	p. 21 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG156 – ENG160 Caterpillar 3516C`	VOC—	1.2 lb/hrhourly	per unit—	p. 22 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	VOC—	0.8 tpyannual	combined—	p. 22 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
	visible emissions—	10 percent opacityvisible	——	p. 23 ↗Machine-extracted from a page line in an older official PDF; literal context: visible emissions in accordance with EPA Test Method 9 (reference 40 CFR 60, Appendix A) for a minimum of six minutes, to assure visible emissions from the emission unit is 10 percent opacity or less. If any observations exceed 10 percent opacity, the observation period shall continue until a total of 60 minutes of observation
	visible emissions—	20 percent opacityvisible	——	p. 23 ↗Machine-extracted from a page line in an older official PDF; literal context: have been completed. Timely corrective action shall be taken, if necessary, such that the emissions unit resumes operation within the 10 percent opacity limit except during one 6-minute period in which visible emissions shall not exceed 20% opacity. The permittee shall maintain written or electronic logs of operating hours and observations
`ENG161 – ENG175 Caterpillar 3516C`	PM—	0.4 lb/hrhourly	per unit—	p. 26 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	PM—	0.8 tpyannual	combined—	p. 26 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG161 – ENG175 Caterpillar 3516C`	NOx as NO2—	48.0 lb/hrhourly	per unit—	p. 26 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	20.5 tpyannual	combined—	p. 26 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG161 – ENG175 Caterpillar 3516C`	NOx as NO2—	6.1 lb/hrhourly	per unit—	p. 26 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	NOx as NO2—	11.3 tpyannual	combined—	p. 26 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG161 – ENG175 Caterpillar 3516C`	VOC—	1.2 lb/hrhourly	per unit—	p. 26 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Annual Emission Limit (all units combined)`	VOC—	2.4 tpyannual	combined—	p. 26 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
	visible emissions—	10 percent opacityvisible	——	p. 28 ↗Machine-extracted from a page line in an older official PDF; literal context: April 24, 2024 Page 25 of 40 Pages the emissions unit resumes operation within the 10 percent opacity limit except during one 6-minute period in which visible emissions shall not exceed 20% opacity.
	visible emissions—	20 percent opacityvisible	——	p. 28 ↗Machine-extracted from a page line in an older official PDF; literal context: Page 25 of 40 Pages the emissions unit resumes operation within the 10 percent opacity limit except during one 6-minute period in which visible emissions shall not exceed 20% opacity. The permittee shall maintain written or electronic logs of operating hours and observations

DOCUMENT HISTORY

What this document says it changes

No separate amendment-history row is published for this Release 2 record.

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.
Older-PDF text fallback; verify row and unit alignment.

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