Is St. Rose, LA tap water safe?
The short answer
St Charles Parish Dept of Waterworks serves St. Rose. In EPA’s and CDC’s records it has 2 results above the health goal and 1 result above EPA’s health benchmark, and no health-based violation since 2016.
The worst: Lithium at 15 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in St Charles Parish Dept of Waterworks’s water.
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Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Water testing near St. Rose
The 3 labs Louisiana certifies closest to St. Rose, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Curtis Environmental Services, Inc.
LaPlace, LA · about 14 miles
Certified for minerals and other inorganics, disinfection byproducts
Water Test, Inc.
Covington, LA · about 36 miles
Certified for bacteria
LDH Amite Regional Laboratory
Amite, LA · about 53 miles
Certified for bacteria
Which ZIP codes are in St. Rose: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: LDH, laboratories certified by Louisiana for drinking water analysis; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near St. Rose
Other towns in St. Charles Parish with a page of their own.
What to do next
- Read St Charles Parish Dept of Waterworks’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water