Louisiana voters approved a constitutional amendment Tuesday allowing local governments to use public funds to identify and replace lead drinking water service lines on private property, removing a legal obstacle to one of the state's most expensive drinking water infrastructure challenges.
Amendment 7 passed with approximately 65% of the vote, receiving 924,321 votes in favor and 492,210 against, according to WWNO's unofficial election results. The Louisiana Illuminator reported that voters approved seven of the 10 constitutional amendments on the ballot.
The measure has particular significance for New Orleans, where the Sewerage and Water Board faces a lead service line replacement effort estimated to cost more than $1 billion. The amendment clears the way for the city to use $152 million in previously approved federal financing toward replacing lead pipes on private property.
For drinking water utilities across Louisiana, the vote addresses a fundamental financing question: How can a public utility replace an entire lead service line when part of that line belongs to a private property owner?
Removing a barrier to complete replacements
Lead service lines frequently extend across two ownership areas. The utility typically controls the portion running from the water main to the property boundary or meter, while the property owner is responsible for the remaining section connecting to the building.
That division can complicate replacement programs. A utility may have financing available to remove its own lead pipes but face legal restrictions on spending public money to replace privately owned sections of the same service line.
Louisiana's constitution generally restricts the use of public funds for private purposes. Amendment 7 creates a specific exception allowing local governments to use public resources to identify and replace lead drinking water service lines on private property.
The amendment authorizes the expenditure of public funds; it does not establish a new tax, issue bonds or create a dedicated statewide replacement program.
The distinction matters because utilities still must identify eligible projects, secure financing and coordinate work with property owners. But the constitutional change provides a clearer legal foundation for public funding of complete lead service line replacements.
A $1 billion challenge in New Orleans
The stakes are especially high for the Sewerage and Water Board of New Orleans (SWBNO), which is responsible for replacing lead service lines throughout a large, aging distribution system.
The Louisiana Illuminator reports that the utility has access to $152 million in federal financing for lead service line work. That represents less than 15% of the estimated cost of removing lead pipes from the city's system, which exceeds $1 billion.
The constitutional restriction had created uncertainty over whether public money could be spent on portions of service lines located on private property. Louisiana Attorney General Liz Murrill previously issued an opinion allowing such expenditures, but Amendment 7 establishes an explicit constitutional exception.
The measure also arrives as drinking water utilities nationwide work toward the federal Lead and Copper Rule Improvements' general 2037 deadline for replacing lead and certain galvanized service lines. Meeting that requirement will involve identifying unknown service line materials, coordinating with property owners, securing contractors and financing replacement work over multiple years.
For New Orleans, the vote resolves an important legal question, but the financial challenge remains substantial. Even with the approved federal financing, the utility must identify additional funding sources and determine how to complete replacements across both publicly and privately owned portions of its system.
What changes for other Louisiana utilities?
Although New Orleans has been central to the debate, Amendment 7 applies statewide. Other municipalities and local governments can use the constitutional exception for qualifying drinking water service line work on customers' property.
The amendment's scope also extends beyond lead alone. According to the Louisiana Legislative Fiscal Office, the measure covers identifying, inventorying, removing or replacing service lines made of or affected by hazardous materials, including lead, copper, galvanized steel and iron, within the scope of the applicable federal drinking water requirements.
That could give local utilities greater flexibility in designing comprehensive replacement programs, particularly where privately owned service lines would otherwise require separate homeowner financing.
The change also comes alongside a separate Louisiana law enacted in 2026 addressing municipal access to private property for lead service line replacement. That legislation establishes a framework for local ordinances, notification and right-of-entry procedures, providing another component of the implementation process.
Funding and implementation remain the next hurdles
For utilities, voter approval removes one barrier to replacement programs while leaving several practical questions unresolved. Local governments must still determine which service lines qualify, how to prioritize replacements, how to secure property-owner access and how to finance work that exceeds available federal assistance.
The distinction between authorization and funding is particularly important. Amendment 7 does not appropriate additional money, guarantee free replacements for homeowners or establish a statewide schedule for completing the work. Those decisions will depend on individual utilities, available financing and applicable federal requirements.
For New Orleans, the immediate question is how quickly the Sewerage and Water Board can translate its existing financing into completed replacements while developing a plan to cover the much larger remaining cost.
The vote also offers a lesson for utilities elsewhere: Replacing lead service lines involves more than securing construction funding. Ownership boundaries, state law and property access can determine whether utilities can replace entire service lines efficiently.
Louisiana voters have now addressed one of those obstacles. The next test will be how effectively utilities use that authority to accelerate replacements.