01The verdict: is Clayton water safe?
Clayton's drinking water has significant quality concerns based on EPA testing data. With a grade of D (47/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,623 residents using groundwater (wells).
36 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 ↓Lead is well under the limit
90th-percentile lead is 1.1 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.
See the trend ↓30 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 ↓Clayton's drinking water received a grade of D (47 out of 100), indicating poor water quality. The city's 2 water systems serve approximately 1,623 residents using groundwater.
Lead levels were measured at 1.1 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 111 violations on record, including 66 health-based violations. 36 remain unresolved.
Clayton ranks #223 out of 309 cities in Louisiana for water quality, placing it below average in the state. Clayton 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, Clayton may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities. The system has seen 30 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
02What's in Clayton's water
Every contaminant flagged in Clayton, 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.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 1.1 | 15 | ppb | Inorganic | Safe |
Cities ranked by 90th-percentile lead PF PFAS in Louisiana
Cities ranked by compounds detected Cu Copper in Louisiana
Cities ranked by 90th-percentile copper
03Clayton'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 111 violations on record, including 66 health-based violations. 36 remain unresolved.
1 of the last ten years was clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.
▲ Up 0.10 ppb since 2004. Latest reading: 1.1 ppb (2025) — 7% of the action level. Sampled at higher-risk homes (90th percentile).
04Where Clayton's water comes from
Clayton's drinking water is drawn from underground aquifers through wells.
Groundwater
Underground aquifers reached by wells — naturally filtered, but can carry minerals like arsenic and nitrate.
Local treatment
Groundwater generally needs less treatment — typically disinfection and, where needed, mineral removal.
2 systems
2 water systems (1 wholesaler), operated under private ownership.
1,623 people
Residents served across Clayton'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 private ownership and serves approximately 1,623 people through 2 water systems.
| System name | PWSID | Population | Source |
|---|---|---|---|
| MAITLAND WATER WORKS DISTRICT | LA1025011 | 900 | Groundwater |
| TOWN OF CLAYTON WATER SYSTEM | LA1029002 | 723 | Groundwater |
Water bodies near Clayton
These water bodies shape the regional watershed and can indirectly affect groundwater quality.
05How Clayton compares
Scores for nearby Louisiana cities on one line, with the average marked.
dashed line = Louisiana average (53/100)
Clayton scores 47/100 — below the Louisiana average of 53/100. It outscores 6 of 10 nearby cities. Full Louisiana rankings →
43.2 / 100AJefferson, LA
85.8 / 100FNew Orleans, LA
34.1 / 100FLafayette, LA
35.1 / 100FShreveport, LA
36.5 / 100BHouma, LA
82.4 / 100
Compare all cities in the county — grades, violations, and contaminant data side by side.→
06What to do at home
Steps matched to what testing actually found in Clayton's water — not generic advice.
A basic carbon filter still helps
Clayton'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 →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 →Watch for Clayton 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 Clayton, LA tap water safe to drink?
Clayton's water quality earned a grade of D (47/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #223 out of 309 cities tested in Louisiana.
What contaminants are in Clayton's water?
Lead was measured at 1.1 ppb (90th percentile). 111 violations are on record.
How is Clayton'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 Clayton?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Clayton's water come from?
Clayton's water is sourced from Groundwater. The city has 2 water systems serving approximately 1,623 residents.
What health violations has Clayton's water system had?
Clayton has 66 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. 36 violations remain unresolved.
Is Clayton's groundwater at risk of contamination?
Clayton 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 111 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 Clayton's water compare to other cities?
Clayton ranks #223 out of 309 cities in Louisiana (better than 28% of state cities) and #13491 out of 15382 cities nationally (12th percentile). The grade of D reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.