St. Martinville Tap Water Quality Report
St. Martinville's water record shows 3 open health-based EPA violations. Consider using a certified water filter for additional protection.
Water system
CITY OF ST MARTINVILLE WATER SYSTEM
1 other system is listed for St. Martinville. See its figures
People Served
7,575
Health-based violations since 2020
6 (3 open)
CITY OF ST MARTINVILLE WATER SYSTEM. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Is St. Martinville Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. St. Martinville's water record shows 3 open health-based EPA violations.
CITY OF ST MARTINVILLE WATER SYSTEM, St. Martinville's water system, serves 7,575 people. 1 other system is listed for St. Martinville. Each system's results are listed under its own name, never added to CITY OF ST MARTINVILLE WATER SYSTEM's. Water quality testing is conducted regularly and reported to the EPA.
In EPA's 2023–2026 UCMR 5 testing, CITY OF ST MARTINVILLE WATER SYSTEM measured lithium at up to 31.5 µg/L, which EPA counts as above its health reference level of 10 µg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Louisiana
St. Martinville Water Service Areas
What these numbers actually mean for St. Martinville, LA
We read St. Martinville, LA’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 3 open health-based EPA violations
- 23 results on file
- 23 PFAS compounds on record
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General-Purpose Water Filters for St. Martinville
St. Martinville's results show no result above EPA's health goals or legal limits, so these are general-purpose NSF/ANSI 53 certified filters, not chosen for any contaminant.
Pentair Residential Filtration, LLC
Everpure Residential H-300-NXT
NSF Certified:
Capacity
3001 gal
Filter Life
10 mo
Flow Rate
0.5 gpm
Removes 5 contaminants:
Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
+14 more
Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Tetrachloroethylene, Toxaphene, Turbidity
Whirlpool Corporation
W11569861
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.52 gpm
Removes 22 contaminants:
+17 more
Atrazine, Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Styrene, Tetrachloroethylene, Toxaphene, Trichloroethylene, Turbidity
Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with “normal” faster faucet flow
Removes 1 contaminants:
Test Your Water Quality
Professional laboratory testing provides accurate, detailed analysis of your drinking water.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
What St. Martinville's water readings can explain
We publish a city-level hardness figure for St. Martinville, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near St. Martinville? Public-water results do not apply to private wells. See St. Martin Parish well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in St. Martinville
St. Martinville's tap water has an estimated 5.7 grains per gallon (97.4 mg/L, county sampling in St. Martin Parish) — moderately hard on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for an estimated 5.7 gpg water in St. Martinville — equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs — equipment, installation labour and ten-year ownership, each separated out. For Louisiana as a whole, read water softener cost in Louisiana — priced against the plumber wage published for the state.
Frequently Asked Questions About St. Martinville Tap Water
St. Martinville's water record shows 3 open health-based EPA violations. We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach CITY OF ST MARTINVILLE WATER SYSTEM. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CITY OF ST MARTINVILLE WATER SYSTEM directly.
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