A precautionary boil water advisory has been issued for several streets in Terrebonne Parish, Louisiana, after repairs to a main distribution line caused system pressure to fall below the safe threshold of 20 psi. Terrebonne Parish Consolidated Waterworks District No. 1 confirmed the advisory at 11:00 a.m. on December 10, 2025, stating that approximately 101 customers along North Hollywood Road, Estate Drive, and sections of Park Avenue are affected.
Although contamination has not been confirmed, the sudden pressure loss increases the potential for untreated water or soil to enter the pipes — prompting officials to advise residents to boil water until laboratory samples show the water is safe.
What Affected Residents Should Do Right Now
To ensure drinking water safety, residents in the advisory zone should:
- Bring all tap water to a rolling boil for at least one minute before drinking, cooking, washing produce, or brushing teeth.
- Use boiled or bottled water to prepare infant formula and make ice.
- Discard any ice made after the pressure drop and turn off automatic icemakers.
- Flush taps briefly if water looks cloudy, then boil before consumption.
These steps remain essential until Terrebonne Parish Waterworks announces the advisory has been lifted.
What NOT to Do During the Advisory
To avoid health risks while testing is underway:
- Do NOT drink unboiled tap water — even if it appears clear.
- Do NOT rely on fridge or countertop filters as substitutes for boiling; they do not reliably remove microbes.
- Do NOT use tap water to prepare baby formula without boiling first.
- Do NOT use ice from any icemaker connected to the home’s plumbing.
This guidance mirrors Louisiana’s standard public-health protocol during system pressure events.
What Happened — And Why This Advisory Was Required
The advisory was triggered when a main line under repair caused the water system’s pressure to fall below 20 psi, the regulatory minimum needed to maintain a protective barrier against contamination. When pressure drops:
- Disinfectant levels can weaken
- Soil or untreated water can infiltrate the line
- Sediment can be pulled into pipes
- Microbial intrusion becomes possible
Under Louisiana’s Safe Drinking Water Program, utilities must issue a boil advisory whenever pressure loss could compromise water quality — even if contamination is not confirmed. Water samples will now be collected and tested, and the advisory will remain in effect until results confirm the water is bacteriologically safe.
Extra Peace of Mind for Homes After the Advisory Ends
Once the advisory is lifted, some households choose to add a certified reverse-osmosis system for long-term protection. These systems can reduce contaminants such as PFAS, disinfection byproducts, and dissolved solids — offering an added layer of assurance in areas with recurring pressure events or older distribution lines. View Waterdrop Reverse Osmosis System
Sources & Notes
- Terrebonne Parish Consolidated Waterworks District No. 1 — Boil Water Advisory notice (Dec 10, 2025)
https://www.tpcw.org/latest-news - Street-specific advisory details (North Hollywood Rd, Estate Dr, Park Ave) and pressure-drop cause
https://www.tpcw.org/latest-news - General guidance for boil-water advisories — Louisiana Department of Health
https://ldh.la.gov
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