Page-cited permit extraction

Amazon Data Services, Inc. IAD-12 IAD-15 IAD-16 IAD-76 IAD-230

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 73860-16, 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

19 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
`63 through 88`	emergency engine generator setCaterpillar · 3516E Non-	26 units2750 kW each	—selective catalytic reduction (SCR); diesel particulate filter	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`89`	emergency engine generator setCaterpillar · C18	1 units750 kW each	——	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`1`	emergency engine generator setCaterpillar · 3516C	1 units2000 kW each	——	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`2 through 5`	emergency engine generator setCaterpillar · C175-16	4 units3000 kW each	——	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`6 through 13`	emergency engine generator setCaterpillar · 3516C-HD	8 units2500 kW each	——	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`14 and 15`	emergency engine generator setCaterpillar · 3516C-HD	2 units2500 kW each	——	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`16 and 17`	engine generator setCaterpillar · 3516C-HD	2 units2500 kW each	diesel fuel oil—	See operating-scope table—	p. 5 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`18 and 19`	emergency engine generator setMTU · 16V4000G83L	2 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`20 through 22`	emergency engine generator setCaterpillar · 3516C-HD	3 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`23`	emergency engine generator setCaterpillar · 3516C-HD	1 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`24`	emergency engine generator setMTU · 16V4000G94S	1 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`25`	emergency engine generator setMTU · 16V4000G83L	1 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`26 through 28`	emergency engine generator setCaterpillar · 3516C-HD	3 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`29 through 35`	emergency engine generator setCaterpillar · 3516C-HD	7 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`36 through 38`	emergency engine generator setCaterpillar · 3516C-HD	3 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`39 through 44`	emergency engine generator setCaterpillar · 3516C-HD	6 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`47 through 60`	emergency engine generator setCaterpillar · 3516C-HD	14 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`45, 46, 61 and 62`	emergency engine generator setCaterpillar · 3516C-HD	4 units2500 kW each	——	See operating-scope table—	p. 6 ↗Machine-extracted from an official document equipment table; column grouping requires second review.
`T5 and T6`	emergency engine generator setCaterpillar · 3516C-HD	2 units2000 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
`24, 45, 46, 61, and 62`	32 hours/year	Amazon Data Services, Inc. IAD-12/15/16/76/230 Registration Number: 73860 January 30, 2025 Page 9 10. Operating Hours – Each emergency diesel engine gen-set (Ref. Nos. 24, 45, 46, 61, and 62) shall not operate more than 32 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT). The emergency diesel engine gen-set (Ref. No. 89) shall not operate more than 35 hours per year for scheduled maintenance checks and readiness tesMachine-extracted normative operating-hours statement; second review pending.	p. 11 ↗
`24, 45, 46, 61, and 62`	35 hours/year	gency diesel engine gen-set (Ref. Nos. 24, 45, 46, 61, and 62) shall not operate more than 32 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT). The emergency diesel engine gen-set (Ref. No. 89) shall not operate more than 35 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT). Each individual emergency diesel engine gen-set (Ref. Nos. 1 through 62, 89, and T1 through T6) shall not operate more than 500 hours per year forMachine-extracted normative operating-hours statement; second review pending.	p. 11 ↗
`89`	500 hours/year	et (Ref. No. 89) shall not operate more than 35 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT). Each individual emergency diesel engine gen-set (Ref. Nos. 1 through 62, 89, and T1 through T6) shall not operate more than 500 hours per year for all purposes (as provided in Condition 6). 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 shall beMachine-extracted normative operating-hours statement; second review pending.	p. 11 ↗

Permitted emission limits

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

Inspect 54 transcribed limit rows

Reference	Pollutant	Limit	Basis / scope	Source
`Ref. Nos. 1 and T1-T6`	PM—	0.57 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 2-5`	PM—	0.59 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 6-15`	PM—	0.40 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 16-17, 20-23, 26-44, 47-60`	PM—	0.40 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 1 and T1-T6`	NOx as NO2—	38.85 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 2-5`	NOx as NO2—	58.51 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 6-15`	NOx as NO2—	47.67 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 16-17, 20-23, 26-44, 47-60`	NOx as NO2—	48.06 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 1 and T1-T6`	NOx as NO2—	3.95 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 2-5`	NOx as NO2—	13.13 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 6-15`	NOx as NO2—	5.86 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 16-17, 20-23, 26-44, 47-60`	NOx as NO2—	6.09 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 1 and T1-T6`	VOC—	1.14 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 2-5`	VOC—	2.56 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 6-15`	VOC—	1.17 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 16-17, 20-23, 26-44, 47-60`	VOC—	1.21 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 18- 19 and 25`	PM—	0.74 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 24`	PM—	0.68 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 24`	PM—	0.40 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 89`	PM—	0.32 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 18- 19 and 25`	NOx as NO2—	45.24 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 24`	NOx as NO2—	47.77 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 24`	NOx as NO2—	48.06 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 89`	NOx as NO2—	14.34 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 18- 19 and 25`	NOx as NO2—	6.54 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 24`	NOx as NO2—	9.81 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 24`	NOx as NO2—	6.09 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 89`	NOx as NO2—	4.73 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 18- 19 and 25`	VOC—	1.11 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 24`	VOC—	1.70 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 24`	VOC—	1.21 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. No. 89`	VOC—	1.91 lb/hrhourly	——	p. 13 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar 3516E (Ref. Nos. 63 through 88) Uncontrolled by SCR`	NOx as NO2uncontrolled	53.48 lb/hrhourly	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Controlled by SCR`	NOx as NO2controlled	4.44 lb/hrhourly	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar 3516E (Ref. Nos. 63 through 88) Uncontrolled by SCR`	PM10uncontrolled	0.20 lb/hrhourly	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar 3516E (Ref. Nos. 63 through 88) Uncontrolled by SCR`	PM2.5uncontrolled	0.20 lb/hrhourly	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar 3516E (Ref. Nos. 63 through 88) Uncontrolled by SCR`	NOx as NO2uncontrolled	3.10 lb/hrhourly	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Caterpillar 3516E (Ref. Nos. 63 through 88) Uncontrolled by SCR`	VOCuncontrolled	0.49 lb/hrhourly	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 1 through 62, T1 through T6, and 63 through 88 without SCR`	PM10controlled	5.53 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 63 through 88 with SCR`	PM10controlled	0.11 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Facility-Wide`	PM10—	5.64 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 1 through 62, T1 through T6, and 63 through 88 without SCR`	PM2.5controlled	5.53 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 63 through 88 with SCR`	PM2.5controlled	0.11 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Facility-Wide`	PM2.5—	5.64 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 1 through 62, T1 through T6, and 63 through 88 without SCR`	NOx as NO2controlled	93.52 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 63 through 88 with SCR`	NOx as NO2controlled	2.60 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Facility-Wide`	NOx as NO2—	96.12 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 1 through 62, T1 through T6, and 63 through 88 without SCR`	NOx as NO2controlled	53.96 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 63 through 88 with SCR`	NOx as NO2controlled	1.82 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Facility-Wide`	NOx as NO2—	55.78 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 1 through 62, T1 through T6, and 63 through 88 without SCR`	VOCcontrolled	17.84 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Ref. Nos. 63 through 88 with SCR`	VOCcontrolled	0.29 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
`Facility-Wide`	VOC—	18.12 tpyannual	——	p. 14 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
	visible emissions—	5 percent opacityvisible	——	p. 15 ↗Machine-extracted from a page line in an older official PDF; literal context: 17. Visible Emission Limit – a. Visible emissions from each non-emergency engine gen-set (Ref. Nos. 63 through 88) shall not exceed 5% opacity as determined by EPA Method 9 (reference 40 CFR 60, Appendix A). This requirement applies at all times except during startup, shutdown

DOCUMENT HISTORY

What this document says it changes

amended or superseding permit document

Explicitly supersedes the document dated 2024-05-10.

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

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