Jordan Sandstone Deep Fossil Aquifer — Twin Cities Basin
Deep Cambrian Jordan Sandstone aquifer beneath the Twin Cities metropolitan area. While the Prairie du Chien and shallower formations receive some modern recharge, the deep Jordan and Mount Simon units contain fossil water with ages of 10,000-50,000 years. Minneapolis-St. Paul draws municipal water from multiple aquifer levels.
Overview
Deep Cambrian Jordan Sandstone aquifer beneath the Twin Cities metropolitan area. While the Prairie du Chien and shallower formations receive some modern recharge, the deep Jordan and Mount Simon units contain fossil water with ages of 10,000-50,000 years. Minneapolis-St. Paul draws municipal water from multiple aquifer levels.
Additional Notes
Minnesota DNR appropriation permits. Deep fossil water supplements surface water supply.
Water Source Data
Water Intelligence Score Breakdown
Total: 84/100Risk Assessment
Source depletion probability
Rights & regulatory exposure
Contamination & ecosystem risk
Geological Intelligence
Formation & aquifer contextVariable porosity — classic aquifer formation
Ancient water, no modern recharge — non-renewable on human timescales
Land Details
PrivateWater Rights
UnverifiedPrior Appropriation
First in time, first in right
Rights are established by historical beneficial use. Senior rights holders receive full allocation before junior holders, regardless of land ownership.
- Seniority date determines priority order
- Requires continuous beneficial use
- Can be severed from land and transferred
- "Use it or lose it" — abandonment risk
Disclaimer: Water rights information is provided for research and informational purposes only and does not constitute legal advice. Rights status, seniority, transferability, and enforceability vary by jurisdiction and change over time. Always consult a licensed water rights attorney and verify status with the relevant state water resources agency before any acquisition or use decision.
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Location
Data Sources & Attribution
Updated Apr 5, 2026Data is sourced from public and authoritative providers. Hi3 Water aggregates, normalizes, and scores records but does not assert ownership of underlying source data. Always verify critical details with the primary source before any decision.