Tap Water Results

Is Lafayette, LA tap water safe?

Data: U.S. EPA · How we read the data · How we check it

Summary

No federal limits exceeded in EPA data for Lafayette Utilities Water System.

6 public water systems serve parts of Lafayette. The largest, Lafayette Utilities Water System, serves 169,389 people. Your water bill names your system.

Largest system

Lafayette Utilities Water System

169,389 people · Groundwater · EPA ID LA1055017

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.

Lead: 0 ppb at the 90th percentile (Dec 2025, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Full Lafayette Utilities Water System results

Across Louisiana, 1 of 263 water systems EPA tested had PFAS above a 2024 federal limit, and 4 systems were above the lead action level in results from the last five years. Louisiana results.

Lafayette homes and lead pipes

48%
of homes built before 1980 (Louisiana 46%, US 50%)
5%
built before 1950 (Louisiana 10%)
47%
of households rent (Louisiana 33%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for Lafayette city (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Lafayette

  • Lpwdn North Region Water System
    16,833 people · Purchased groundwater · Louisiana · reported ZIPs here
    Coliform bacteria violation
  • Lpwd South Water System
    15,132 people · Purchased groundwater · Louisiana · reported ZIPs here
    No PFAS above limits
  • United Water System
    4,446 people · Groundwater · Louisiana · reported ZIPs here
    Arsenic violations
  • Lpwd North Production Facility Water System
    4,122 people · Groundwater · Louisiana · reported ZIPs here
    No PFAS above limits
  • Magnolia-Ossun Heights Water System
    393 people · Purchased groundwater · Louisiana · reported ZIPs here
    No PFAS above limits

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Baton Rouge 56 mi
Baton Rouge Water Company
Baton Rouge Water CompanyNone above limits1 ppb
Central 64 mi
Baton Rouge Water Company
Baton Rouge Water CompanyNone above limits1 ppb
Lake Charles 71 mi
City of Lake Charles Water System
City of Lake Charles Water SystemNone above limits0.84 ppb
Alexandria 80 mi
City of Alexandria Water System
City of Alexandria Water SystemNone above limits2 ppb
Kenner 107 mi
East Jefferson Water Works District 1
East Jefferson Water Works District 1None above limits2.65 ppb
New Orleans 125 mi
New Orleans Carrollton Water Works
New Orleans Carrollton Water WorksNone above limits6 ppb
Lafayette ZIP codes (5)
  • 70501
  • 70503
  • 70506
  • 70507
  • 70508

Questions

Is Lafayette tap water safe to drink?

Lafayette Utilities Water System has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.

Who supplies water in Lafayette, LA?

6 public water systems serve parts of Lafayette. The largest is Lafayette Utilities Water System (169,389 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Lafayette tap water have PFAS?

None detected above EPA's reporting limits. Lafayette Utilities Water System had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.

Do Lafayette homes have lead pipes?

Census estimates put 48% of Lafayette homes as built before 1980 (Louisiana: 46%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Lafayette Utilities Water System's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.