Is Montz, LA tap water safe?
The short answer
1 of the 3 utilities serving Montz has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: St John Water District 1.
St John Water District 1, which serves the most people here, has 1 result above the health goal. The worst: Lead at 2.0 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 Montz’s ZIP codes, from EPA’s estimates.
- Open report
St John Water District 1
Louisiana · serves 10,484 people · about 670 in Montz
1 result above the health goal. The worst: Lead at 2.0 ppb, above the health goal.
1 health-based violation since 2016
- Open report
St John Water District 3
Louisiana · serves 31,965 people · about 610 in Montz
2 results above the health goal. The worst: Arsenic at 1.1 ppb, above the health goal.
No health-based violations since 2016
- Open report
St Charles Parish Dept of Waterworks
Louisiana · serves 52,879 people · under 100 in Montz
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 15 ppb, above EPA’s health benchmark.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in St John Water District 1’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Brita Tahoe Pitcher with Elite Filter (OB60, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 13, 2026
Certified for: Lead
Brita Everyday Pitcher with Elite Filter (OB46, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
Certified for: Lead
PUR PLUS 11-Cup Pitcher (PPT111W)
Pitcher
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
Certified for: Lead
Water testing near Montz
The 3 labs Louisiana certifies closest to Montz, 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 · under a mile
Certified for minerals and other inorganics, disinfection byproducts
Water Test, Inc.
Covington, LA · about 28 miles
Certified for bacteria
LDH Amite Regional Laboratory
Amite, LA · about 40 miles
Certified for bacteria
ZIP codes in Montz
Which ZIP codes are in Montz: 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 Montz
Other towns in St. John the Baptist Parish with a page of their own.
What to do next
- Read St John Water District 1’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water