Connecticut data center water reporting and use.
3 sourced items are documented. Reporting duties, permitted quantities and reported use retain separate meanings.
Historical record, Program requirements. Checked: October 27, 2026.
Evidence applies only to the subjects and dates in the linked sources. State context does not assign a tariff, permit or quantity to every facility.
Open the Connecticut data center map.
Sourced findings.
Connecticut diversion registrations and annual reporting
Historical registration window, conditional ongoing rights and reporting guidance; exact50000gallon wording unresolved.
Connecticut Department of Energy and Environmental Protection. Source: Publication date not stated. Checked: October 25, 2026.Full source details load when opened.
Connecticut historical thermoelectric water context
Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation.
U.S. Geological Survey. Source: Publication date not stated. Checked: October 26, 2026.Full source details load when opened.
Connecticut historical2020 modeled thermoelectric water context
USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.
U.S. Geological Survey. Source: October 31, 2023. Checked: October 27, 2026.Full source details load when opened.
Explore data center records.
These records are in Connecticut. State evidence does not establish an individual record match.
- Atlas Capital Group Data Center (132 Griffin Road North)
- Beacon Falls Data Center Campus (1 Lopus Road)
- Cigna Windsor Data Center (9 Griffin Road North)
- CogNovum Data Center (80 Merritt Boulevard)
- CyrusOne NYM5 (Norwalk)
- Energy & Innovation Park Data Center (480 Myrtle Street)
- NE Edge Millstone Nuclear Data Center
- Omega Systems Stamford Data Center (26 Fahey Street, formerly Amnet/Cloudpath CT1)
- ReNew Riverside Micro Cloud Technology Center (234 Riverside Avenue)
- State of Connecticut Groton Data Center (Pfizer campus Building 230)
- TierPoint Waterbury
- University of Connecticut Gant Data Center
Find the full record collection on the state map.
Updated . What changed: Latest source review in this evidence collection. It does not establish a site outcome.



