Saint Gabriel, LA: High Radon Risk — 47/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
In recent EPA cycles, Saint Gabriel shows a persistent below-average water quality pattern within LA — documented violations span multiple service areas and have appeared consistently across reporting periods.
How Saint Gabriel Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Saint Gabriel Water
- Homes built before 1986: 32% — older plumbing may contain lead solder.
- Estimated remediation: $2,500 per household.
- CDC health risk index: 15.72 — above typical levels.
Who Supplies Your Water in Saint Gabriel
Water service in Saint Gabriel, LA is split across 3 utilities out of 4 tracked federally, each operating its own infrastructure and compliance record.
Overview
We track water quality and home safety data for 1 ZIP code in Saint Gabriel, Louisiana (population ~6,304), covering 4 community water systems serving approximately 10,357 people region-wide.
No EPA violations recorded across any ZIP codes in Saint Gabriel — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Saint Gabriel: D (47/100)
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
Saint Gabriel water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Saint Gabriel
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 70776 | D | East Iberville Water System | 6,657 |
All ZIP Codes in Saint Gabriel
- 70776 [D]
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.
Health Outcomes in Saint Gabriel
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
Housing & Infrastructure in Saint Gabriel
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
What does a median build year of 2008 mean for water safety in Saint Gabriel? It means the housing stock straddles two key plumbing thresholds: the 1986 federal ban on lead solder in copper plumbing, and the pre-1970 era when lead pipes were commonly installed for service lines. A meaningful share of homes predates one or both of those cutoffs, creating varied risk levels across the city's housing inventory.
Most homes in Saint Gabriel were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Saint Gabriel Homeowners
In Saint Gabriel, property values comfortably outpace what documented remediation typically costs — the equity share is proportionally low.
Remediation costs in Saint Gabriel are relatively low compared to home values. The $1,800–$4,000 estimated range is a small fraction of median property value. Home values are 64% above the Louisiana average.
Lead Exposure Risk for Children in Saint Gabriel
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 utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 32% of Saint Gabriel stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Saint Gabriel
A moderate NFIP record for Saint Gabriel — 115 insurance claims paired with 100% of ZIP codes in FEMA flood zones — points to a flood history where water-quality pathways have likely been periodically relevant.
Saint Gabriel has a moderate flood history with 115 FEMA claims averaging $60,335 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>$2,500</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 Saint Gabriel
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 32% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Saint Gabriel, LA