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 74235-2, with one-based PDF page citations. Permitted terms do not establish actual operation or emissions.
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.
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
1 through 75
13 hours/year
s started on-site and ending when the affected unit is fully integrated with the sources electrical system. (9 VAC 5-80-1180) [7/23/2025] 7. Operating Hours – Each individual emergency diesel engine gen-set (Ref. Nos. 1 through 75) shall not operate more than 13 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT) (as provided in Condition 6.c). Each individual emergency diesel engine gen-set (Ref. Nos. 1 through 75) shall not operate more than 500 hours perMachine-extracted normative operating-hours statement; second review pending.
ough 75) shall not operate more than 13 hours per year for scheduled maintenance checks and readiness testing (Scheduled MCRT) (as provided in Condition 6.c). Each individual emergency diesel engine gen-set (Ref. Nos. 1 through 75) shall not operate more than 500 hours per year for all purposes (as provided in Condition 6) 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.
12 pollutant, unit-group and limit rows. These are permit terms, not measured or actual emissions.
Inspect 12 transcribed limit rows
Reference
Pollutant
Limit
Basis / scope
Source
MTU Model 16V4000 DS2250 (Ref. Nos. 1 through 75)
NOx as NO2—
44.35 lb/hrhourly
per unit—
p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
MTU Model 16V4000 DS2250 (Ref. Nos. 1 through 75)
NOx as NO2—
9.37 lb/hrhourly
per unit—
p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
MTU Model 16V4000 DS2250 (Ref. Nos. 1 through 75)
VOC—
2.20 lb/hrhourly
per unit—
p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
MTU Model 16V4000 DS2250 (Ref. Nos. 1 through 75)
PM10—
0.92 lb/hrhourly
per unit—
p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
MTU Model 16V4000 DS2250 (Ref. Nos. 1 through 75)
PM2.5—
0.92 lb/hrhourly
per unit—
p. 9 ↗Machine-extracted from an official permit limit table; header grouping requires second review.
emergency diesel engine gen-sets (Ref. Nos. 1 through 75)
NOx as NO2—
96.82 tpyannual
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: All Operations (All Units Combined) Nitrogen Oxides (NO as NO ) 96.82 tpy x 2
emergency diesel engine gen-sets (Ref. Nos. 1 through 75)
NOx as NO2—
30.32 tpyannual
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (NO as NO ) 96.82 tpy x 2 Carbon Monoxide (CO) 30.32 tpy Volatile Organic Compounds (VOC) 18.65 tpy
emergency diesel engine gen-sets (Ref. Nos. 1 through 75)
VOC—
18.65 tpyannual
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: x 2 Carbon Monoxide (CO) 30.32 tpy Volatile Organic Compounds (VOC) 18.65 tpy Particulate Matter (PM ) 6.01 tpy
emergency diesel engine gen-sets (Ref. Nos. 1 through 75)
PM—
6.01 tpyannual
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: Carbon Monoxide (CO) 30.32 tpy Volatile Organic Compounds (VOC) 18.65 tpy Particulate Matter (PM ) 6.01 tpy 10
emergency diesel engine gen-sets (Ref. Nos. 1 through 75)
visible emissions—
5 percent opacityvisible
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: (9 VAC 5-80-1180) [7/23/2025] 13. Visible Emission Limit – Visible emissions from each emergency diesel engine gen-set (Ref. Nos. 1 through 75) exhausts shall not exceed 5% opacity except during one 6-minute period in any one hour in which visible emissions shall not exceed 10% opacity as
emergency diesel engine gen-sets (Ref. Nos. 1 through 75)
visible emissions—
10 percent opacityvisible
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: 13. Visible Emission Limit – Visible emissions from each emergency diesel engine gen-set (Ref. Nos. 1 through 75) exhausts shall not exceed 5% opacity except during one 6-minute period in any one hour in which visible emissions shall not exceed 10% opacity as determined by EPA Method 9 (reference 40 CFR 60, Appendix A). This condition applies
emergency diesel engine gen-sets (Ref. Nos. 1 through 75)
visible emissions—
20 percent opacityvisible
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: During startup and shutdown, visible emissions from each emergency diesel engine gen-set shall not exceed 10% opacity except during one 6-minute 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 2022-11-21.