Page-cited permit extraction

Amazon Data Services, Inc. IAD-90 IAD-91 IAD-92

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 74121-2, 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

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

ReferenceEquipment / modelCount / ratingFuel / controlsStated operating fieldSource
1, 2, 5, 17 through 20, 27, 35 through 38, 48, 53, and 54emergency engine generator setCaterpillar · 3516C15 units2500 kW eachdiesel fuel oilSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
3, 4, 6 through 16, 21 through 26, 28 through 34, 39 through 47, and 49 through 52emergency engine generator setCaterpillar · 3516C-HD39 units2500 kW eachdiesel fuel oilSee operating-scope tablep. 5Machine-extracted from an official document equipment table; column grouping requires second review.
T1 through T4emergency engine generator setCaterpillar · 3516C4 units2000 kW eachdiesel fuel oilSee operating-scope tablep. 5Machine-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
1 through 54 and T1 through T435 hours/yearnit (which involves fuel combustion) shall be minimized to the maximum extent practical. (9VAC5-80-1180) [11/6/2024] 7. Operating Hours – a. Each individual emergency diesel engine gen-set (Ref. Nos. 1 through 54 and T1 through T4) shall not operate more than 35 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT, as provided in Condition 3.c.). b. Each individual emergency diesel engine gen-set (Ref. Nos. 1 through 54 and T1 through T4) shall not operate morMachine-extracted normative operating-hours statement; second review pending.p. 8
1 through 54 and T1 through T4500 hours/yearerate more than 35 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT, as provided in Condition 3.c.). b. Each individual emergency diesel engine gen-set (Ref. Nos. 1 through 54 and T1 through T4) shall not operate more than 500 hours per year for all purposes (as provided in Condition 3) combined. 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 periodMachine-extracted normative operating-hours statement; second review pending.p. 8

Permitted emission limits

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

Inspect 16 transcribed limit rows
ReferencePollutantLimitBasis / scopeSource
Ref. Nos. 1 through 54NOx as NO248.06 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. T1 through T4NOx as NO238.85 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. 1 through 54NOx as NO26.09 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. T1 through T4NOx as NO23.95 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. 1 through 54VOC1.21 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. T1 through T4VOC1.14 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. 1 through 54PM100.40 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. T1 through T4PM100.57 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. 1 through 54PM2.50.40 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. T1 through T4PM2.50.57 lb/hrhourlyp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. 1 through 54 and T1 through T4NOx as NO296.03 tpyannualp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. 1 through 54 and T1 through T4NOx as NO251.71 tpyannualp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. 1 through 54 and T1 through T4VOC10.83 tpyannualp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. 1 through 54 and T1 through T4PM103.55 tpyannualp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
Ref. Nos. 1 through 54 and T1 through T4PM2.53.55 tpyannualp. 10Machine-extracted from an official permit limit table; header grouping requires second review.
visible emissions20 percent opacityvisiblep. 11Machine-extracted from a page line in an older official PDF; literal context: November 6, 2024 Page 9 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).

DOCUMENT HISTORY

What this document says it changes

amended or superseding permit document

Explicitly supersedes the document dated 2017-07-27.

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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