Carville, LA: Lead Above EPA Limits — 69/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
While Carville avoids LA's lowest safety tiers, a portion of its water systems have logged documented violations.
How Carville Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Carville Residents
- Your city's water systems recorded 3 violations in the past 5 years.
- Average lead level: 0.018 mg/L — exceeds the EPA action level of 0.015 mg/L.
- Homes built before 1986: 42% — older plumbing may contain lead solder.
- Estimated remediation: $1,500 per household.
- CDC health risk index: 15.72 — above typical levels.
Carville's Water Providers
Federal records list 2 water systems tied to Carville, LA. Of those, 2 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.
Overview
We track water quality and home safety data for 1 ZIP code in Carville, Louisiana (population ~368), covering 2 community water systems serving approximately 3,540 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 1 health-based violation documented.
Home Safety Score
Average Home Safety Score for Carville: C (69/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Carville water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0180 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 ZIP code exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 6 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 70721 | C | 3 | 1 | Intracoastal Water System East |
All ZIP Codes in Carville
- 70721 [C] — 3 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Carville Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Carville's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Carville Infrastructure Age
With 42% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
A median build year of 1996 in Carville is characteristic of a mixed-era city where plumbing risk depends heavily on the specific property. Homes built before 1986 may have lead-soldered copper joints; those from before 1970 face the added possibility of lead service lines. The percentages above capture how much of the residential stock falls into each risk era.
A significant portion of Carville's housing stock predates 1970, when lead pipes were commonly used. Residents in older homes should consider water testing.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Carville
Given current Carville valuations, the remediation-to-property-value ratio is low — most homeowners are looking at a proportionally modest share that fits within routine financial planning.
Remediation costs in Carville are relatively low compared to home values. The $950–$2,400 estimated range is a small fraction of median property value. Home values are 27% above the Louisiana average.
Carville: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Although federal monitoring continues at the utility tier, Carville's 42% share of older housing alongside aggregate readings beyond the action mark raises lead to a near-term household step.
<strong>1 ZIP code</strong> (100% of the city) exceeds the EPA lead action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Carville: Flood History & Water Damage Risk
Across the NFIP's long tracking period, Carville shows 9 claims and 100% of ZIP codes within FEMA-designated flood zones — figures that place it in moderate flood exposure territory. At this level, the water-quality implications of flooding — contaminated wells, stressed treatment intake, distribution backflow — move from theoretical edge cases to genuine periodic risks, particularly during higher-severity events.
Carville has a moderate flood history with 9 FEMA claims averaging $3,364 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,500</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Carville
- Test your water at home. City-level data shows averages — your tap may differ. Lead testing is especially recommended given the area's lead levels.
- Install a certified water filter. Filters rated for Stage 1 DBP Rule can reduce the most common contaminant found in Carville's water.
- Check your home's plumbing. With 42% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Carville, LA