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Source-backed project record · VA

Amazon Data Services IAD450 Cosner Tech Campus

This canonical record consolidates 3 source-backed observations without discarding aliases, limitations or unresolved dimensions.

unknownproject status
VERIFIED_PRIMARYbest evidence tier
3linked evidence rows
Project facts

Location and operating record

Operator / developerAmazon Data Services, Inc.
JurisdictionSpotsylvania County, VA
Address3901 Massaponax Church Road, Spotsylvania
Location precisionexact coordinate
Coordinates38.20338, -77.46952
CapacityNot established
AliasesAmazon Data Services IAD450 Cosner Tech Campus
Evidence coverage

What has been researched

Project profile1 rows
Intent / permits1 rows
Civic / infrastructure1 rows
EXACT LOCATION

Amazon Data Services IAD450 Cosner Tech Campus: exact location

CORROBORATED

Permit record gives full address plus coordinates for the Cosner campus

Key data: 3901 Massaponax Church Road, Spotsylvania; latitude 38.20338, longitude -77.46952

Limitation: Parcel ID not published

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AIR PERMIT APPLICATION

Amazon Data Services IAD450 Cosner Tech Campus: air permit application

Listed as an issued air permit for a data center

Status date: 06/01/2026

Limitation: Same limitation as above.

Open source →

WATER WITHDRAWAL VOLUME

Amazon Data Services IAD450 Cosner Tech Campus: water withdrawal volume

Agreements in place

Spotsylvania holds three water-reuse service agreements for data-center cooling: Cosner Tech Campus up to **1,260 gpm ≈ 1.8 MGD**; the Mattameade Amazon complex max **1,980 gpm ≈ 2.8 MGD** once the reuse system is built; Powerhouse 95 max **700,000 gal/d**. An Amazon annotation says maximum draw would be needed only ~4.1% of the year, but the agreements contain no clause limiting use to that share or requiring air-cooling priority; ~60% of cooling water is lost to evaporation.

Key data: Cosner (IAD450): 1,260 gpm ≈ 1.8 MGD; Mattameade: 1,980 gpm ≈ 2.8 MGD; Powerhouse 95: 700,000 gal/d

Status date: 2026

Limitation: Attribution of the Cosner agreement to permit-named "IAD450" rests on the shared "Cosner Tech Campus" name; DEQ's issued-permit list shows IAD450 Cosner Tech Campus permit 74288-2 issued 06/01/2026.

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Sources

Evidence and provenance

Open VA state research →

Amazon Data Services IAD450 Cosner Tech Campus Data Center Project | Spotsylvania County | Compute Equity Atlas