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WaterVerge

Water quality report · updated Jul 2026

Is Cankton, LA Tap Water Safe to Drink?

Graded B+, with 8 unresolved violations on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
0.0 ppb lead, 90th percentile · low
8 unresolved violations
3K people served by 1 water system

PWSID LA1097025 · moderate data confidence · local government utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
B 81.9 / 100

#94 of 309Louisiana cities
How we grade →

01The verdict: is Cankton water safe?

Cankton's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.9/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,598 residents using groundwater (wells).

The concern

8 unresolved violations on record

EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 0.0 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

2 violations in the last five years

Recent compliance history is the best predictor of future problems — the year-by-year record is below.

See the record ↓

Cankton's drinking water received a grade of B+ (81.9 out of 100), indicating good water quality. The city's 1 water system serves approximately 2,598 residents using groundwater.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program. The system has 20 violations on record, including 9 health-based violations. 8 remain unresolved.

Cankton ranks #94 out of 309 cities in Louisiana for water quality, placing it mid-range in the state. Cankton relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff. As a small community water system, Cankton may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

How the 81.9/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
34.9 / 45B
Lead & CopperLead at 0.0 ppb (90th percentile).
20 / 20A
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
5 / 10D
Source RiskWater source: Groundwater.
5 / 5A

02What's in Cankton's water

Every contaminant flagged in Cankton, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Cankton's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 20 violations on record, including 9 health-based violations. 8 remain unresolved.

7 of the last ten years were clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.

5 health-based in 10 yrs 3 monitoring & paperwork 3 still unresolved
UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Cankton's water quality assessment. Grade: B+ (81.9/100).
Violation1 drinking water violation recorded1 health-based. Contaminants: TTHM.Resolved
Violation1 drinking water violation recordedContaminants: Consumer Confidence Rule.Open
Violation2 drinking water violations recorded1 health-based. Contaminants: TTHM, Consumer Confidence Rule.Open
Lead, 90th percentileppb · lower is better
05101520EPA action level · 15 ppb2004 — 6 ppb2007 — 1.6 ppb2010 — 3 ppb2012 — 4 ppb2015 — 2 ppb2018 — 2 ppb2021 — 1 ppb2024 — 0 ppb6020042010201520212024

Down 6 ppb since 2004. Latest reading: 0 ppb (2024) — 0% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Cankton's water comes from

Cankton's drinking water is drawn from underground aquifers through wells.

Source

Groundwater

Underground aquifers reached by wells — naturally filtered, but can carry minerals like arsenic and nitrate.

Treatment

Local treatment

Groundwater generally needs less treatment — typically disinfection and, where needed, mineral removal.

Distribution

1 system

1 water system (1 wholesaler), operated under local government ownership.

Delivery

2,598 people

Residents served across Cankton's service area.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals. Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds. The system is operated by local government ownership and serves approximately 2,598 people through 1 water system.

System namePWSIDPopulationSource
VILLAGE OF CANKTON WATER SYSTEM LA1097025 2,598 Groundwater

Water bodies near Cankton

Vermilion River (B. Vermilion) Near Carencro · river Vermillion Rvr N. Of I-10 At Lafayette, La · river Vermilion River At Surrey St. At Lafayette · river

These water bodies shape the regional watershed and can indirectly affect groundwater quality.

05Pressure on Cankton's watershed

Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.

Industrial discharge

Present — monitored

5 facilities within 10 miles reported 119 lb released to surface water in the latest EPA Toxics Release Inventory. Proximity doesn't equal tap contamination — treatment and hydrology decide — but it's pressure on the watershed.

HALLIBURTON LAFAYETTE MANUFACTURING — manganese 119 lb · 6.7 mi
NEW DAIRY LOUISIANA LLC 0 lb · 9.4 mi
BALMAR LLC 0 lb · 6.8 mi
+ 2 more facilities

06How Cankton compares

Scores for nearby Louisiana cities on one line, with the average marked.

Jefferson
85.8 · A-
Cankton (this city)
81.9 · B+
Baton Rouge
43.2 · F
Shreveport
36.5 · F
Lafayette
35.1 · F
New Orleans
34.1 · F

dashed line = Louisiana average (53/100)

Cankton scores 81.9/100above the Louisiana average of 53/100. It outscores 8 of 10 nearby cities. Full Louisiana rankings →

St. Landry Parish water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

07What to do at home

Steps matched to what testing actually found in Cankton's water — not generic advice.

Extra protection

A basic carbon filter still helps

Cankton's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Cankton alerts

We refresh EPA data monthly and surface new violations, advisories, and boil-water notices for your county on this page.

All water alerts →

Frequently asked questions

Is Cankton, LA tap water safe to drink?

Cankton's water quality earned a grade of B+ (81.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #94 out of 309 cities tested in Louisiana.

What contaminants are in Cankton's water?

Lead was measured at 0.0 ppb (90th percentile). 20 violations are on record.

How is Cankton's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Cankton?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Cankton's water come from?

Cankton's water is sourced from Groundwater. The city has 1 water system serving approximately 2,598 residents.

What health violations has Cankton's water system had?

Cankton has 9 health-based violations on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 8 violations remain unresolved.

Is Cankton's groundwater at risk of contamination?

Cankton uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 20 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Cankton's water compare to other cities?

Cankton ranks #94 out of 309 cities in Louisiana (better than 70% of state cities) and #7164 out of 15382 cities nationally (53th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Cankton's small water system affect quality?

Cankton's system serves approximately 2,598 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 20 violations on record.

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About Cankton, LA: Cankton is a village in St. Landry Parish, Louisiana, United States. As of the 2020 census, Cankton had a population of 583. It is part of the Opelousas–Eunice Micropolitan Statistical Area. Wikipedia → Service area: 1 ZIP code across St. Landry Parish.
Show ZIP codes 70584
Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.