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About Us

National Water Infrastructure began in 1994 as a small, family-owned sewer utility company called Ascension Wastewater Treatment. Since then, we have grown into one of the largest privately owned sewer utility companies in Louisiana, serving more than 16,000 customers.

NWI owns and operates approximately 230 lift stations and sewer treatment systems plants in developments throughout Ascension, Livingston, and East Baton Rouge Parishes.

All NWI systems have been upgraded to maintain compliance with local, state and federal regulations as we are regulated by the Louisiana Public Service Commission, LDEQ and LDH. As we move forward, we continue to upgrade plants that discharge into waterways, deemed impaired by DEQ, to remain in substantial compliance.

In 2013, we were named the Private System of the Year for Outstanding Operations and Maintenance by the Louisiana Rural Water Association (LRWA) for our "dedication to helping maintain a cleaner environment.”

Our long-term goal and vision is to provide high-quality sewer treatment services and return the healthiest water possible back into the environment.

National Water Infrastructure Partners with Ascension Sewer

In 2020, we were given the opportunity to partner with Ascension Sewer on a plan to bring a clean, modern, and cost-effective sewer system to Ascension Parish.

On Feb. 11, 2021 the Parish Council unanimously approved a resolution to transfer the parish’s sewer assets to NWI. On April 21, 2021, the residents of Ascension Parish approved the sale of the parish’s sewer assets on the east bank to NWI. We are now working to build and operate a new consolidated system that Ascension Parish needs.