Page-cited permit extraction

Herndon Technology Partners LLC

Fairfax 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 74332-1, 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

2 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
`GEN-1 through GEN-28`	emergency engine generator setMTU · 20V4000G94S	28 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.
`GEN-H01`	emergency engine generator setMTU · 12V4000G84S	1 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.

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
`GEN-1 through GEN-28`	136 hours/year	h unit (which involves fuel combustion) shall be minimized to the maximum extent practical. (9VAC5-80-1180) [January 30, 2026] 7. Operating Hours – a. The emergency diesel engine gen-sets (Ref. Nos. GEN-1 through GEN-28) combined shall not operate more than 3,136 hours per year for all purposes (as provided in Condition 3) combined, and each individual emergency diesel engine gen-set (Ref. Nos. GEN-1 through GEN-28) shall not operate more than 500 hours per year for all purposes (as provided iMachine-extracted normative operating-hours statement; second review pending.	p. 7 ↗
`GEN-1 through GEN-28`	500 hours/year	(Ref. Nos. GEN-1 through GEN-28) combined shall not operate more than 3,136 hours per year for all purposes (as provided in Condition 3) combined, and each individual emergency diesel engine gen-set (Ref. Nos. GEN-1 through GEN-28) shall not operate more than 500 hours per year for all purposes (as provided in Condition 3) combined.Machine-extracted normative operating-hours statement; second review pending.	p. 7 ↗
`GEN-H01`	112 hours/year	Herndon Technology Partners LLC Registration Number: 74332 January 30, 2026 Page 6 b. The emergency diesel engine gen-set (Ref. Nos. GEN-H01) shall not operate more than 112 hours per year for all purposes (as provided in Condition 3) combined. c. Each individual emergency diesel engine gen-set (Ref. Nos. GEN-1 through GEN-28 and Ref. Nos. GEN-H01) shall not operate more than 29 hours per year for SchedulMachine-extracted normative operating-hours statement; second review pending.	p. 8 ↗
`GEN-H01`	29 hours/year	et (Ref. Nos. GEN-H01) shall not operate more than 112 hours per year for all purposes (as provided in Condition 3) combined. c. Each individual emergency diesel engine gen-set (Ref. Nos. GEN-1 through GEN-28 and Ref. Nos. GEN-H01) shall not operate more than 29 hours per year for Scheduled MCRT (as provided in Condition 3.c). The annual limits for hours of operation shall be calculated monthly as the sum of each consecutive 12-month period. Compliance for the consecutive 12-month period shalMachine-extracted normative operating-hours statement; second review pending.	p. 8 ↗

Permitted emission limits

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

Inspect 30 transcribed limit rows

Reference	Pollutant	Limit	Basis / scope	Source
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	NOx as NO2—	61.78 lb/hrhourly	per unit—	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	NOx as NO2—	33.90 lb/hrhourly	——	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	NOx as NO2—	9.39 lb/hrhourly	per unit—	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	NOx as NO2—	5.47 lb/hrhourly	——	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	VOC—	2.67 lb/hrhourly	per unit—	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	VOC—	1.05 lb/hrhourly	——	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	PM—	0.98 lb/hrhourly	per unit—	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	PM—	0.50 lb/hrhourly	——	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	PM10—	0.98 lb/hrhourly	per unit—	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	PM10—	0.50 lb/hrhourly	——	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	PM2.5—	0.98 lb/hrhourly	per unit—	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	PM2.5—	0.50 lb/hrhourly	——	p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	NOx as NO2—	96.88 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	NOx as NO2—	1.90 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All units (Ref. Nos. GEN-1 through GEN-28 and GEN-H01)`	NOx as NO2—	98.78 tpyannual	combined—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	NOx as NO2—	14.72 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	NOx as NO2—	0.31 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All units (Ref. Nos. GEN-1 through GEN-28 and GEN-H01)`	NOx as NO2—	15.03 tpyannual	combined—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	VOC—	4.19 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	VOC—	0.06 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All units (Ref. Nos. GEN-1 through GEN-28 and GEN-H01)`	VOC—	4.25 tpyannual	combined—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	PM—	1.53 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	PM—	0.03 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All units (Ref. Nos. GEN-1 through GEN-28 and GEN-H01)`	PM—	1.56 tpyannual	combined—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	PM10—	1.53 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	PM10—	0.03 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All units (Ref. Nos. GEN-1 through GEN-28 and GEN-H01)`	PM10—	1.56 tpyannual	combined—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 20V4000G94S (Ref. Nos. GEN-1 through GEN-28)`	PM2.5—	1.53 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`MTU 12V4000G84S (Ref. Nos. GEN-H01)`	PM2.5—	0.03 tpyannual	——	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`All units (Ref. Nos. GEN-1 through GEN-28 and GEN-H01)`	PM2.5—	1.56 tpyannual	combined—	p. 10 ↗Machine-extracted from an official permit limit table; header grouping requires second review.

DOCUMENT HISTORY

What this document says it changes

permit to construct and operate

No superseded-document date is asserted beyond the cited source wording.

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.

← Return to evidence index