Page-cited permit extraction

Amazon Data Services Inc IAD-170

Loudoun 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 74337-1, 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

4 document-defined equipment groups. Counts and per-unit ratings are transcribed; combined capacity is not calculated.

ReferenceEquipment / modelCount / ratingFuel / controlsStated operating fieldSource
1 through 38emergency engine generator setMTU · 20V4000F74S (Gen-Set DS2800) non-38 units2800 kW eachselective catalytic reduction (SCR); diesel particulate filterSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
39emergency engine generator setMTU · 16V2000G86S (Gen-Set DS1000)1 units1000 kW eachSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
T1 and T2emergency engine generator setCaterpillar · 3516C2 units2000 kW eachSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
Pollutantengine generator set1 unitsNo reliable per-unit rating transcribedSee operating-scope tablep. 13Machine-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.

ReferenceLimitBasisSource
39, T1, and T2500 hours/yearo 100, operation of each unit (which involves fuel combustion) shall be minimized to the maximum extent practical. (9VAC5-80-1180) [3/20/2026] 10. Operating Hours – a. Each emergency diesel engine gen-set (Ref. Nos. 39, T1, and T2) shall not operate more than 500 hours per year for all purposes (as provided in Condition 6) combined. b. Each emergency diesel engine gen-set (Ref. Nos. 39, T1, and T2) shall not operate more than 35 hours per year for Scheduled MCRT (as provided in Condition 6.c).Machine-extracted normative operating-hours statement; second review pending.p. 9
39, T1, and T235 hours/yearch emergency diesel engine gen-set (Ref. Nos. 39, T1, and T2) shall not operate more than 500 hours per year for all purposes (as provided in Condition 6) combined. b. Each emergency diesel engine gen-set (Ref. Nos. 39, T1, and T2) shall not operate more than 35 hours per year for Scheduled MCRT (as provided in Condition 6.c).Machine-extracted normative operating-hours statement; second review pending.p. 9

Permitted emission limits

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

Inspect 25 transcribed limit rows
ReferencePollutantLimitBasis / scopeSource
MTU 16V2000 Ref. No. 39NOx as NO219.48 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516C Ref. Nos. T1 & T2NOx as NO238.85 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
MTU 16V2000 Ref. No. 39NOx as NO22.25 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516C Ref. Nos. T1 & T2NOx as NO23.92 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
MTU 16V2000 Ref. No. 39VOC0.71 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516C Ref. Nos. T1 & T2VOC1.14 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
MTU 16V2000 Ref. No. 39PM0.13 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516C Ref. Nos. T1 & T2PM0.57 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
MTU 16V2000 Ref. No. 39PM100.13 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516C Ref. Nos. T1 & T2PM100.57 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
MTU 16V2000 Ref. No. 39PM2.50.13 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
Caterpillar 3516C Ref. Nos. T1 & T2PM2.50.57 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
ControlledNOx as NO2controlled4.45 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
UncontrolledNOx as NO2uncontrolled53.30 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
ControlledNOx as NO2controlled2.67 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
ControlledVOCcontrolled1.18 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
ControlledPMcontrolled0.19 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
ControlledPM10controlled0.19 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
ControlledPM2.5controlled0.19 lb/hrhourlyp. 12Machine-extracted from an official permit limit table; header grouping requires second review.
All Engine Gen-SetsNOx as NO294.45 tpyannualcombinedp. 13Machine-extracted from an official permit limit table; header grouping requires second review.
All Engine Gen-SetsNOx as NO246.57 tpyannualcombinedp. 13Machine-extracted from an official permit limit table; header grouping requires second review.
All Engine Gen-SetsVOC46.58 tpyannualcombinedp. 13Machine-extracted from an official permit limit table; header grouping requires second review.
All Engine Gen-SetsPM4.17 tpyannualcombinedp. 13Machine-extracted from an official permit limit table; header grouping requires second review.
All Engine Gen-SetsPM104.17 tpyannualcombinedp. 13Machine-extracted from an official permit limit table; header grouping requires second review.
All Engine Gen-SetsPM2.54.17 tpyannualcombinedp. 13Machine-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.
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