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 73160-6, 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
1 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
emergency engine generator set—
1 unitsNo reliable per-unit rating transcribed
diesel fuel oil—
See operating-scope table—
p. 1 ↗Machine-extracted from explicit permit prose: Semah: Attached is a permit to construct and operate a project to install one (1) emergency diesel engine generator set at Cyxtera's data center facility located at 21110 Ridgetop Circle, 45901 and 45845 Nokes Boule
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
500 hours/year
ully integrated with the source's electrical system. (9 VAC 5-80-1180) 6. Moursof Operation - The five (5) emergency diesel engine generator sets (DC4-EG7 thai DC4-EG11) shall not operate more than 1,000 hours pery earc ombined, but individually not more than 500 hours per year, calculated monthly as the sum of each consecutive 12-month period Compliance fore ach consecutive 12-month period shall be demonstrated monthly by adding the total for the most recently completed calendar month to theMachine-extracted normative operating-hours statement; second review pending.
r the most recently completed calendar month to the individual monthly totals for the preceding 1 1 months. (9 VAC 5-80-1180) 8. ^ou^-^f-9p^!?t!. on.- The six (6) emergency diesel engine generator sets (DC2&3-EG7 thru DC2&3-EG12) shall not operate more than 1,200 hours per year combined, but individually not more than 500 hours per year, calculated monthly as the sum of each consecutive 12-month period. Compliance for each consecutive 12-month period shall be demonstrated monthly by adding theMachine-extracted normative operating-hours statement; second review pending.
Cyxtera Communications, LLC Registration Number: 73160 October 30, 2019 Page 7 9. Hours ofOp®ration - The five (5) emergency diesel engine generator sets (DC2&3-EG1 thru DC2&3-EG5) shall not operate more than 1,000 hours per year combined, but individually not more than 500 hours per year, calculated monthly as the sum of each consecutive 12-month period. Compliance for each consecutive 12-month period shall be demonstrated monthly by adding theMachine-extracted normative operating-hours statement; second review pending.
munications, LLC Registration Number: 73160 October 30, 2019 Page 7 9. Hours ofOp®ration - The five (5) emergency diesel engine generator sets (DC2&3-EG1 thru DC2&3-EG5) shall not operate more than 1,000 hours per year combined, but individually not more than 500 hours per year, calculated monthly as the sum of each consecutive 12-month period. Compliance for each consecutive 12-month period shall be demonstrated monthly by adding the total for the most recently completed calendar month to theMachine-extracted normative operating-hours statement; second review pending.
nthly by adding the total for the most recently completed calendar month to the individual monthly totals for the preceding 11 months. (9 VAC 5-80-1180) 10. Hours of Operation - The emergency diesel engine generator set (DC2&3-EG6) shall not operate more than 200 hours per year, calculated monthly as the sum of each consecutive 12-month period. Compliance for each consecutive 12-month period shall be demonstrated monthly by adding the total for the most recently completed calendar month to theMachine-extracted normative operating-hours statement; second review pending.
9 pollutant, unit-group and limit rows. These are permit terms, not measured or actual emissions.
Inspect 9 transcribed limit rows
Reference
Pollutant
Limit
Basis / scope
Source
each of the emergency diesel engine generator sets
NOx as NO2—
1.39 lb/hrhourly
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: DC4-EG7thru DC4-EG11 (5 units) Nitrogen Oxides (as N02) 38.61 Ibs/hr Carbon Monoxide (CO) 1.39lbs/hr Volatile Organic Compounds (VOC) 0.85 Ibs/hr
each of the emergency diesel engine generator sets
NOx as NO2—
1.35 lb/hrhourly
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: DC4-EG1 thai DC4-EG6 (6 units) Nitrogen Oxides (as N62) 32.89 Ibs/hr Carbon Monoxide (CO) 1.35lbs/hr Volatile Organic Compounds (VOC) 1.48lbs/hr
each of the emergency diesel engine generator sets
VOC—
1.48 lb/hrhourly
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (as N62) 32.89 Ibs/hr Carbon Monoxide (CO) 1.35lbs/hr Volatile Organic Compounds (VOC) 1.48lbs/hr PMl0 /2.5 0.32 Ibs/hr
each of the emergency diesel engine generator sets
NOx as NO2—
16 lb/hrhourly
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: Sulfur Dioxide (S02) 0.04 Ibs/hr DC2&3-EG7 thru DC2&3-EG12 (6 units) Nitrogen Oxides (as N02) 41. 16lbs/hr Carbon Monoxide (CO) 4.01 Ibs/hr
each of the emergency diesel engine generator sets
VOC—
19 lb/hrhourly
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (as N02) 41. 16lbs/hr Carbon Monoxide (CO) 4.01 Ibs/hr Volatile Organic Compounds (VOC) 1. 19lbs/hr PMlQ/2.5 0.91 Ibs/hr
each of the emergency diesel engine generator sets
VOC—
1.28 lb/hrhourly
——
p. 10 ↗Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (as N02) 47.74 Ibs/hr Carbon Monoxide (CO) 9.33 Ibs/hr Volatile Organic Compounds (VOC) 1.28lbs/hr PMlO/2.5 1.08lbs/hr
VOC—
1.20 lb/hrhourly
——
p. 11 ↗Machine-extracted from a page line in an older official PDF; literal context: Nitrogen Oxides (as NOz) 48.07 Ibs/hr Carbon Monoxide (CO) 8.01 Ibs/hr Volatile Organic Compounds (VOC) 1.20lbs/hr PMlQ/2.5 0.41 Ibs/hr
NOx as NO2—
95.32 tpyannual
——
p. 11 ↗Machine-extracted from a page line in an older official PDF; literal context: generator sets combined (Ref. No. DC2&3-EG1 thm DC2&3-EG13 and DCC4-EG1 thru DC4-EG11), shall not exceed the limits specified below: Nitrogen Oxides (as N02) 95.32 tons/yr Carbon Monoxide (CO)
VOC—
2.86 tpyannual
——
p. 11 ↗Machine-extracted from a page line in an older official PDF; literal context: Carbon Monoxide (CO) 9.79 tons/yr Volatile Organic Compounds (VOC) 2.86 tons/yr PMw/2.5 1.64 tons/yr
DOCUMENT HISTORY
What this document says it changes
amended or superseding permit document
Explicitly supersedes the document dated 2014-01-30.