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Cumulative Water Impact

Total projected daily water demand if all 34 tracked proposals are built

Cumulative Water Impact · 34 Proposals Tracked

83–165 MGD

total projected daily water demand if all 34 proposals are built

277,206–550,199 households' worth of water per day857–1702% of San Marcos daily city use
20 projects with disclosed data
4 projects with estimates
10 projects with no water data (excluded from total)

Impact by Water Source Region

Edwards Aquifer Region

Bexar, Comal & Hays Counties · 15 projects

Direct cooling11.1–16.1 MGD
Total (incl. power)20.5–36.7 MGD
Aquifer recharge (drought year)200 MGD
San Marcos city total9.7 MGD
Municipal withdrawals (total)209 MGD

Carrizo-Wilcox Aquifer

Caldwell County · 4 projects

Direct cooling15.4–36.6 MGD
Total (incl. power)43.4–94.8 MGD
Sustainable capacity (PCCD MAG)31.9 MGD
Current actual use2.3 MGD
Annual recharge (within PCCD)11.2 MGD

Proposed DCs represent 41.2× current county groundwater use at high estimate.

Guadalupe River System

Guadalupe County · 1 project

Direct cooling3.2–4.7 MGD
Total (incl. power)5–8.5 MGD
GBRA delivery capacity40 MGD

Palomino Alpha specifies recycled water per development agreement

Colorado River / Highland Lakes

Travis & Williamson Counties · 14 projects

Direct cooling7.9–11.5 MGD
Total (incl. power)14.3–25 MGD

Stage 3 drought context: San Marcos residents are restricted to once-per-week watering. These proposed data centers face no equivalent restrictions. Total known proposed capacity: 10.0 GW. 10 projects with unknown MW capacity excluded from total — actual demand may be higher. See methodology →

Key:DisclosedProxyEstimateNo data
Data accuracy notice: Water estimates are derived from developer disclosures, public permit filings, and industry benchmarks. The Central Texas Data Center Tracker strives for accuracy but makes no warranty of completeness. View our methodology →