Page-cited permit extraction

Microsoft Corporation - East Coast Data Center

Mecklenburg Co., Virginia

QA status Second-reviewedRelease dated July 29, 2026

EVIDENCE NOTE

What the public record says

A machine extraction that passed a second manual review of equipment groups and permit limits stated in Virginia DEQ permit 21527-15, 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. 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.

SECOND-REVIEWED EXTRACTION

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

12 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
`ENG161– ENG175 Power Harvesting BN49 and BN80`	engine generator setCaterpillar	15 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG1 – ENG11 BN1-BN4`	engine generator setCaterpillar	11 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 BN1-BN4`	engine generator setCaterpillar	3 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 BN1-BN4`	engine generator setCaterpillar	3 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 BN1-BN4`	engine generator setCaterpillar	20 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 BN6-BN13`	engine generator setCummins	60 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG62 – ENG65 BN6-BN13`	engine generator setCummins	4 units2000 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG66 BN6-BN13`	engine generator setCummins · 750 kWe Model 750DQCB standby	1 units750 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG113 – ENG152 BN6-BN13`	engine generator setCummins	40 units3000 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG153 – ENG154 BN6-BN13`	engine generator setCummins	2 units1750 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG 155 BN6-BN13`	engine generator setCummins · 800 kWe Model 800DQCC standby	1 units800 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`ENG156 – ENG160 BN14`	engine generator setCaterpillar	5 units2500 kW each	——	See operating-scope table—	p. 6 ↗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

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

Inspect 70 transcribed limit rows

Reference	Pollutant	Limit	Basis / scope	Source
`ENG1 – ENG11 Caterpillar 3516C`	PM—	0.4 lb/hrhourly	per unit—	p. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 9 ↗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. 13 ↗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. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	PM—	0.2 lb/hrhourly	——	p. 13 ↗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. 13 ↗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. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	NOx as NO2—	14.8 lb/hrhourly	——	p. 13 ↗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. 13 ↗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. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	NOx as NO2—	0.6 lb/hrhourly	——	p. 13 ↗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. 13 ↗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. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	VOC—	0.5 lb/hrhourly	——	p. 13 ↗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. 13 ↗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. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG66 Cummins 750DQCB`	SO2—	0.01 lb/hrhourly	——	p. 13 ↗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. 13 ↗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. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG 155 Cummins 800DQCC`	PM—	0.4 lb/hrhourly	——	p. 13 ↗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. 13 ↗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. 13 ↗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. 13 ↗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. 13 ↗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. 13 ↗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. 13 ↗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. 13 ↗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. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG 155 Cummins 800DQCC`	VOC—	0.8 lb/hrhourly	——	p. 13 ↗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. 13 ↗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. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`ENG 155 Cummins 800DQCC`	SO2—	0.01 lb/hrhourly	——	p. 13 ↗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. 14 ↗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. 14 ↗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. 14 ↗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. 14 ↗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. 14 ↗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. 17 ↗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. 17 ↗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. 17 ↗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. 17 ↗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. 17 ↗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. 17 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
	visible emissions—	20 percent opacityvisible	——	p. 18 ↗Machine-extracted from a page line in an older official PDF; literal context: September 19, 2023 Page 15 period in any one hour in which visible emissions shall not exceed 20% opacity as determined by EPA Method 9 (reference 40 CFR 60, Appendix A). This condition applies
`ENG161 – ENG175 Caterpillar 3516C`	PM—	0.4 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)`	PM—	0.8 tpyannual	combined—	p. 21 ↗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. 21 ↗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. 21 ↗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. 21 ↗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. 21 ↗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. 21 ↗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. 21 ↗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 2022-09-23.

p. 1 ↗, p. 4 ↗

QA NOTES

Ambiguity stays visible

Verify table column grouping and any alternative models. Large multi-model Microsoft permit; equipment page 6 and hourly/annual limit page 9 visually checked.
Confirm multi-row and merged-column header association. Large multi-model Microsoft permit; equipment page 6 and hourly/annual limit page 9 visually checked.
Older-PDF text fallback; verify row and unit alignment. Large multi-model Microsoft permit; equipment page 6 and hourly/annual limit page 9 visually checked.

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