Page-cited permit extraction

Level 3 Communications Herndon Gateway

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 73823-2, 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

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

ReferenceEquipment / modelCount / ratingFuel / controlsStated operating fieldSource
engine generator set2 unitsNo reliable per-unit rating transcribeddiesel fuel oilSee operating-scope tablep. 1Machine-extracted from explicit permit prose: Gurdikian: Attached is a permit document consisting of two parts: Part I, a permit to construct and operate three (3) diesel engine generator sets (Ref
engine generator set1 unitsNo reliable per-unit rating transcribeddiesel fuel oilSee operating-scope tablep. 1Machine-extracted from explicit permit prose: and Part II, a permit to operate one (1) diesel engine generator set (Ref

Operating scope

Authorized hours, time windows or an explicit finding that no numeric annual-hour cap was located in the reviewed sections.

ReferenceLimitBasisSource
500 hours/yearI Level^Communlcatlons registration Number:73823 November17,2014 Page5 5 Operating Hours^Each diesel engine generator set shall not operate more than 500 hours peryear,calculated monthly as the sum of each consecutive 12month period. Compliance fortheconsecutlve12monthpenod shall be demonstrated monthly by adding the total for the most recently completed calendar month to the IndividuMachine-extracted normative operating-hours statement; second review pending.p. 7
1500 hours/yearperiod, calculated as the sum of all emissions from operations underscenarlos4.a.through4.cahove shall not exceed the limits stated In Condition 9. (9VAC5-30-350) 5 Operating Hours^Total operating hours forthe engine-generator set (Ref. No.1) shall not exceed 500 hours peryear,calculated monthly as the sum of each consecutive twelve month period. Referto Condition 14for record keeping requirements to demonstrate compliance with this condition (9VAC5-30-350) 3. Puei Specification-The approvedMachine-extracted normative operating-hours statement; second review pending.p. 15

Permitted emission limits

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

Inspect 8 transcribed limit rows
ReferencePollutantLimitBasis / scopeSource
diesel engine-generator setsvisible emissions5 percent opacityvisiblep. 8Machine-extracted from a page line in an older official PDF; literal context: (9 VAC 5-80-1180 and 9 VAC 5-50-260) 9. Visible Emission Limit - Visible emissions from each diesel engine-generator set shall not exceed 5 percent opacity except during one six-minute period in any one hour in which visible emissions shall not exceed 10 percent opacity as determined by the EPA Method 9
diesel engine-generator setsvisible emissions10 percent opacityvisiblep. 8Machine-extracted from a page line in an older official PDF; literal context: 9. Visible Emission Limit - Visible emissions from each diesel engine-generator set shall not exceed 5 percent opacity except during one six-minute period in any one hour in which visible emissions shall not exceed 10 percent opacity as determined by the EPA Method 9 (reference 40 CFR 60, Appendix A). During startup and shutdown, visible emissions shall
diesel engine-generator setsvisible emissions20 percent opacityvisiblep. 8Machine-extracted from a page line in an older official PDF; literal context: visible emissions shall not exceed 10 percent opacity as determined by the EPA Method 9 (reference 40 CFR 60, Appendix A). During startup and shutdown, visible emissions shall not exceed 10 percent opacity, except for one six-minute interval not to exceed 20 percent opacity.
visible emissions5 percent opacityvisibleper exhaust/sourcep. 8Machine-extracted normative visible-emission limit; second review pending.
visible emissions10 percent opacityvisibleper exhaust/sourcep. 8Machine-extracted normative visible-emission limit; second review pending.
NOx as NO2139 lb/hrhourlyp. 16Machine-extracted from a page line in an older official PDF; literal context: NltrogenOxldes(asN0 ) 523lbs/hr 2 Carbon Monoxlde(CO) 139lbs/hr (9VAC5-30-350)
NOx as NO2131 tpyannualp. 16Machine-extracted from a page line in an older official PDF; literal context: g Annual Emission Limits-Total combined annual emissions from operation oftheenglne- generator set shall notexceed the llmltsspeclfled below: Nitrogen Oxides (as N0 ) 131tons/yr 2
NOx as NO235 tpyannualp. 16Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (as N0 ) 131tons/yr 2 Carbon Monoxlde(CO) 35tons/yr These emissions are derived from the estimated overall emission contribution from

DOCUMENT HISTORY

What this document says it changes

amended or superseding permit document

Explicitly supersedes the document dated 2010-11-02.

p. 1, p. 3

QA NOTES

Ambiguity stays visible

  • Machine-extracted candidate. Verify every reused value against the cited official PDF page.
  • Prose fallback; verify equipment grouping.
  • Confirm whether the limit is per unit, combined, or limited to testing/maintenance.
  • Older-PDF text fallback; verify row and unit alignment.
  • Confirm normal-operation versus startup/shutdown exception.
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