Louisiana Water Rights 101
Gulf Coast · Riparian (Civil Law)Louisiana follows French civil law water traditions with riparian rights. The Mississippi River alluvial aquifer and Chicot Aquifer are major groundwater sources.
Riparian Rights under Civil Law (Louisiana)
Louisiana follows French civil law tradition with riparian rights, modified by Napoleonic Code principles.
Key Principles
- •Riparian landowners have water rights tied to their property
- •Based on French civil law rather than English common law
- •Uses must not substantially harm other riparian users
- •Groundwater rights tied to overlying land
- •Unique among US states in its civil law foundation
How to Buy Water Rights in Louisiana
- 1Research existing rights. Contact the Louisiana state water resources department to look up water rights records in the area of interest. Most western states maintain searchable public records.
- 2Verify priority date and quantity. Under Riparian (Civil Law), the priority date determines seniority and therefore the value and reliability of the right during shortages.
- 3Conduct due diligence. Verify historical beneficial use, check for forfeiture risk, and confirm the right is current with the state agency.
- 4Hire a Louisiana water rights attorney. Water rights transactions are legally complex and state-specific. Always retain a licensed Louisiana water rights attorney before closing.
- 5File transfer with the state. Most transfers require state approval. Change of ownership, point of diversion, or use typically require formal filings.
Forfeiture & Non-Use Rules
Rights attach to land ownership and generally do not expire from non-use. This is critical to understand before purchasing water rights in Louisiana. Always verify recent beneficial use history before closing any transaction.
Explore Louisiana Water Assets
See every tracked water asset, aquifer boundary, and water rights record in Louisiana on our interactive map.