Trumbull, CT
Aphorio Carter – Trumbull
Aphorio Carter · Operating · 80 Merritt Boulevard
Long-operating data center built in 1960, acquired by Aphorio Carter from Digital Realty in 2024. Decades of pre-existing hydrologic baseline available for comparison.
Estimated water use
Estimate0–750,000 gal/day
The operator has not disclosed a cooling technology, so this range spans every cooling type this site tracks, at the published capacity of 15 MW. The width of this range is exactly the uncertainty a cooling-type disclosure would remove.
By cooling technology
- Fully air-cooled≈ 0 gal/day
- Closed-loop chilled water10,650–27,750 gal/day
- Evaporative cooling towers277,500–750,000 gal/day
15 MW capacity: datacentermap.com
Each scenario uses that technology's own published ratio and source. Scenarios are never averaged — no source supports a number in between.
Derived from published industry ratios; actual use depends on the cooling system chosen, operating conditions, load, and weather.
Lifecycle timeline
ObservedConfirmed events only, each with its source.
~January 1960
Construction completed
The Trumbull facility is built in 1960 for use by NASDAQ, decades before its later life as a multi-tenant colocation site.
Source~January 2024
Ownership change
Aphorio Carter acquired the Trumbull, CT data center (previously Digital Realty's HVN10) in 2024.
Source~January 2026
Expansion announced
Norwalk-based 365 Data Centers, in partnership with CogNovum (which operates the facility with owner Aphorio Carter), is evaluating AI-driven upgrades to the Trumbull site as part of a roughly 200 MW nationwide high-density expansion push. Early stage — no final contracts or approvals confirmed yet.
SourceMay 6, 2026
Expansion announced
365 Data Centers and Aphorio Carter announced a ~200 MW AI-ready data center pipeline across several U.S. markets, naming the existing Trumbull facility as a site for a subsequent letter-of-intent as part of a phased expansion strategy. No specific upgrade scope, capacity change, or timeline for Trumbull has been disclosed.
Source
Observed hydrologic data
ObservedFrom nearby USGS and NOAA monitoring stations, refreshed monthly. Dashed lines mark lifecycle milestones.
Groundwater level (ft below surface)
5 stations, overlaid · monthly average
Streamflow (cubic ft/sec)
USGS Rooster River at Fairfield, CT (01208873) · monthly average
Precipitation (in)
NOAA Stratford 0.2 ESE, CT (GHCND:US1CTFR0046) · monthly average
Regulatory records
ObservedWater permits and environmental compliance records from CT DEEP Water Diversion Program and EPA ECHO.
No permit or compliance record from these sources currently matches this facility.
Other water permits in Trumbull: local context only
5 other diversion permits on file in Trumbull, held by other water users nearby (public water systems, industry, golf courses). The largest:
- Town of Trumbull0 MGD max
- Town of Trumbull0 MGD max
- Town of Trumbull0 MGD max
- Town of Trumbull0 MGD max
- Town of Trumbull0 MGD max
Drawdown story
AssessmentIs the water table's behavior near this facility consistent with its estimated draw — and how strong is the evidence? A fixed rubric, recomputed monthly; every number below is stored with the inputs that produced it. Method: attribution-v1.
1 · Pathway
The operator has not disclosed where this facility's water comes from. Until a source is published, the assessment is capped: an unclassified pathway can never raise the score.
2 · Detectability
At the high end of the estimate, the draw should produce a clearly visible signal (~3.5 ft) at the nearest monitored well 3.6 mi away.
3 · Signal
No monitored well within 2 miles of this facility — there is no near-field record to compare against controls.
The monitoring record around this facility is too sparse to assess.
Attribution evidence score: withheld · as of 2026-07-22 · attribution-v1