Is Arnaudville, LA tap water safe?
The short answer
2 of the 3 utilities serving Arnaudville have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: United Water System and Hidden Hills Subdivision Water System.
Town of Arnaudville Water System, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 4.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Arnaudville’s ZIP codes, from EPA’s estimates.
- Open report
Town of Arnaudville Water System
Louisiana · serves 3,957 people · under 100 in Arnaudville
2 results above the health goal. The worst: Arsenic at 4.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
United Water System
Louisiana · serves 4,446 people · under 100 in Arnaudville
1 result above the legal limit, 1 result above the action level and 1 result above the health goal. The worst: Copper at 2.0 ppm, above the action level.
23 health-based violations since 2016
- Open report
Hidden Hills Subdivision Water System
Louisiana · serves 240 people · based in Arnaudville
1 result above the health goal. The worst: Arsenic at 1.8 ppb, above the health goal.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Town of Arnaudville Water System’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic
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: 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: Arsenic
Water testing near Arnaudville
The 3 labs Louisiana certifies closest to Arnaudville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
SGS North America, Inc. - Scott
Scott, LA · about 16 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Element Materials Technology Lafayette, LLC
Lafayette, LA · about 19 miles
Certified for lead and copper, metals
LDH Central Laboratory
Baton Rouge, LA · about 44 miles
Certified for bacteria
ZIP codes in Arnaudville
Which ZIP codes are in Arnaudville: 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 Arnaudville
Other towns in St. Martin Parish with a page of their own.
What to do next
- Read Town of Arnaudville Water System’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water