Page-cited permit extraction

Cloud HQ

Prince William 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 74107-6, 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

13 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
`66 through 101`	emergency engine generator setCaterpillar · C175-16	36 units3000 kW each	diesel fuel oil—	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`102 and 103`	emergency engine generator setCaterpillar · 3512C	2 units1750 kW each	diesel fuel oil—	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`1S`	emergency engine generator setCummins · QSK50-DQGAF	1 units1500 kW each	diesel fuel oil—	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`2 through 29`	emergency engine generator setCummins · QSK78-DQLF	28 units2750 kW each	diesel fuel oil—	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`30 through 65`	emergency engine generator setCaterpillar · C175-16	36 units3000 kW each	diesel fuel oil—	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Pollutant All Operations of 29`	emergency engine generator set—	— unitsNo reliable per-unit rating transcribed	diesel fuel oil—	See operating-scope table—	p. 11 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 11 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Pollutant`	emergency engine generator set—	1 unitsNo reliable per-unit rating transcribed	diesel fuel oil—	See operating-scope table—	p. 12 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 12 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
	engine generator set—	— unitsNo reliable per-unit rating transcribed	diesel fuel oil—	See operating-scope table—	p. 12 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`Pollutant`	emergency engine generator set—	1 unitsNo reliable per-unit rating transcribed	diesel fuel oil—	See operating-scope table—	p. 13 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
	engine generator set—	— unitsNo reliable per-unit rating transcribed	——	See operating-scope table—	p. 13 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
	engine generator set—	— unitsNo reliable per-unit rating transcribed	diesel fuel oil—	See operating-scope table—	p. 13 ↗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
`1S, 2 through 103`	20 hours/year	erations under the scenarios above, shall not exceed the limits stated in Conditions 14, 16, and 18 as applicable. (9 VAC 5-80-1180) 7. Operating Hours – Each individual emergency diesel engine gen-set (Ref. Nos. 1S, 2 through 103) shall not operate more than 20 hours per year for scheduled maintenance and readiness testing, and more than 500 hours per year for all purposes (as provided in Condition 6) combined. The annual limits for hours of operation shall be calculated monthly as the sum oMachine-extracted normative operating-hours statement; second review pending.	p. 8 ↗
`1S, 2 through 103`	500 hours/year	ons 14, 16, and 18 as applicable. (9 VAC 5-80-1180) 7. Operating Hours – Each individual emergency diesel engine gen-set (Ref. Nos. 1S, 2 through 103) shall not operate more than 20 hours per year for scheduled maintenance and readiness testing, and more than 500 hours per year for all purposes (as provided in Condition 6) combined. The annual limits for hours of operation shall be calculated monthly as the sum of each consecutive 12-month period. Compliance for each consecutive 12-month perioMachine-extracted normative operating-hours statement; second review pending.	p. 8 ↗

Permitted emission limits

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

Inspect 55 transcribed limit rows

Reference	Pollutant	Limit	Basis / scope	Source
`Cummins model QSK50-DQGAF (Ref. No. 1S)`	NOx as NO2—	29.37 lb/hrhourly	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Cummins model QSK78-DQLF (Ref. Nos. 2 through 29)`	NOx as NO2—	53.70 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Cummins model QSK50-DQGAF (Ref. No. 1S)`	NOx as NO2—	9.58 lb/hrhourly	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Cummins model QSK78-DQLF (Ref. Nos. 2 through 29)`	NOx as NO2—	7.70 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Cummins model QSK50-DQGAF (Ref. No. 1S)`	VOC—	0.87 lb/hrhourly	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Cummins model QSK78-DQLF (Ref. Nos. 2 through 29)`	VOC—	2.18 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Cummins model QSK50-DQGAF (Ref. No. 1S)`	PM10—	0.48 lb/hrhourly	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Cummins model QSK78-DQLF (Ref. Nos. 2 through 29)`	PM10—	0.90 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Cummins model QSK50-DQGAF (Ref. No. 1S)`	PM2.5—	0.48 lb/hrhourly	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Cummins model QSK78-DQLF (Ref. Nos. 2 through 29)`	PM2.5—	0.90 lb/hrhourly	per unit—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 29 emergency diesel engine gen-sets at MCC1 (Ref. Nos. 1S, 2 through 29)`	NOx as NO2—	26.02 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Scheduled Maintenance Checks/ Readiness Testing1 of 29 emergency diesel engine gen-sets (Ref. Nos. 1S, 2 through 29)`	NOx as NO2—	8.77 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 29 emergency diesel engine gen-sets at MCC1 (Ref. Nos. 1S, 2 through 29)`	NOx as NO2—	9.49 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Scheduled Maintenance Checks/ Readiness Testing1 of 29 emergency diesel engine gen-sets (Ref. Nos. 1S, 2 through 29)`	NOx as NO2—	2.76 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 29 emergency diesel engine gen-sets at MCC1 (Ref. Nos. 1S, 2 through 29)`	VOC—	2.21 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Scheduled Maintenance Checks/ Readiness Testing1 of 29 emergency diesel engine gen-sets (Ref. Nos. 1S, 2 through 29)`	VOC—	0.27 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 29 emergency diesel engine gen-sets at MCC1 (Ref. Nos. 1S, 2 through 29)`	PM10—	0.47 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Scheduled Maintenance Checks/ Readiness Testing1 of 29 emergency diesel engine gen-sets (Ref. Nos. 1S, 2 through 29)`	PM10—	0.15 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 29 emergency diesel engine gen-sets at MCC1 (Ref. Nos. 1S, 2 through 29)`	PM2.5—	0.47 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Scheduled Maintenance Checks/ Readiness Testing1 of 29 emergency diesel engine gen-sets (Ref. Nos. 1S, 2 through 29)`	PM2.5—	0.15 tpyannual	——	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 30 through 65)`	NOx as NO2—	58.51 lb/hrhourly	per unit—	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 30 through 65)`	NOx as NO2—	7.61 lb/hrhourly	per unit—	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 30 through 65)`	VOC—	0.85 lb/hrhourly	per unit—	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 30 through 65)`	PM10—	0.59 lb/hrhourly	per unit—	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 30 through 65)`	PM2.5—	0.59 lb/hrhourly	per unit—	p. 11 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	NOx as NO2—	35.68 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	NOx as NO2—	21.07 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	NOx as NO2—	11.15 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	NOx as NO2—	2.74 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	VOC—	2.11 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	VOC—	0.31 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	PM10—	0.94 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	PM10—	0.14 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	PM2.5—	0.94 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 36 emergency diesel engine gen-sets at MCC2 (Ref. Nos. 30 through 65)`	PM2.5—	0.14 tpyannual	——	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 66 through 101)`	NOx as NO2—	58.51 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model 3512C (Ref. Nos. 102 and 103)`	NOx as NO2—	34.18 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 66 through 101)`	NOx as NO2—	7.61 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model 3512C (Ref. Nos. 102 and 103)`	NOx as NO2—	5.88 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 66 through 101)`	VOC—	0.85 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model 3512C (Ref. Nos. 102 and 103)`	VOC—	0.89 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 66 through 101)`	PM10—	0.59 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model 3512C (Ref. Nos. 102 and 103)`	PM10—	0.55 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model C175-16 (Ref. Nos. 66 through 101)`	PM2.5—	0.59 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar model 3512C (Ref. Nos. 102 and 103)`	PM2.5—	0.55 lb/hrhourly	per unit—	p. 12 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	NOx as NO2—	37.08 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	NOx as NO2—	21.75 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	NOx as NO2—	15.86 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	NOx as NO2—	2.86 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	VOC—	3.40 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	VOC—	0.33 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	PM10—	1.20 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	PM10—	0.15 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	PM2.5—	1.20 tpyannual	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All Operations of 38 emergency diesel engine gen-sets at MCC6 (Ref. Nos. 66 through 103)`	PM2.5—	0.15 tpyannual	——	p. 13 ↗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 2020-08-24.

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.
Confirm multi-row and merged-column header association.

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