Amazon Data Services IAD-667, IAD-668, IAD-669, IAD-670, and IAD-671
approved CampusOperated by Amazon Data Services, Inc.
Virginia DEQ issued Amazon Data Services, Inc. an air permit (Registration No. 74301) on March 12, 2025 to construct and operate diesel engine generator sets at the five-building IAD-667 through IAD-671 data center campus in Leesburg. The permit equipment list covers 166 Caterpillar 3516E non-emergency gen-sets rated 2,750 ekW each with selective catalytic reduction and catalyzed diesel particulate filters, plus 5 Caterpillar C32 units at 1,000 ekW and 2 Caterpillar 3516C units at 2,000 ekW.
Land use jurisdiction: Town of Leesburg
Measurements on record
Approvals, by aspect
| Aspect | Approving body | Instrument | Status |
|---|---|---|---|
| Air permit (backup generators) | Virginia Department of Environmental Quality | Article 6 minor NSR permit to construct and operate, Registration No. 74301 (2025-03-12) document |
on record |
| Land use entitlement (CUP / rezoning) | not yet requested | ||
| CEQA review | not yet requested | ||
| Building permit | not yet requested | ||
| Water supply (will-serve) | not yet requested | ||
| Wastewater / septic | not yet requested | ||
| Stormwater / retention ponds / dry wells | not yet requested | ||
| Grid interconnection | not yet requested | ||
| Natural gas supply | not yet requested | ||
| Tax abatement / development agreement | not yet requested |
Location and sources
Leesburg, Loudoun County, Virginia
Every record links to its source: openly licensed datasets (Epoch AI, CC BY; Wikidata, CC0; US EPA, public domain) and public permit records. Full sourcing and licensing: methodology · sources.