Metairie, LA: High Radon Risk — 47/100 (2026)
12 ZIP codes · 1 water system · Updated 2026-06-03
Metairie, LA water systems: poor compliance record, lower-tier safety grade.
How Metairie Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Metairie, LA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of water safety grades across Metairie.
Metairie Water: The Quick Version
- Estimated remediation: $1,933 per household.
- CDC health risk index: 14.75 — above typical levels.
Water Systems Serving Metairie
Federal drinking water records identify 1 system operating in Metairie, LA. One of those systems serves the overwhelming majority of residential addresses, concentrating infrastructure management, rate authority, and EPA compliance reporting within a single organization.
Overview
We track water quality and home safety data for 12 ZIP codes in Metairie, Louisiana (population ~137,417), covering 1 community water system serving approximately 334,903 people region-wide.
No EPA violations recorded across any ZIP codes in Metairie — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Metairie: 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
Metairie water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Metairie
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 70001 | F | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
| 70002 | F | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
| 70003 | F | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
| 70004 | D | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
| 70005 | F | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
| 70006 | F | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
| 70009 | D | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
| 70010 | D | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
| 70011 | D | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
| 70033 | C | NEW ORLEANS CARROLLTON WATER WORKS | 334,903 |
All ZIP Codes in Metairie
- 70001 [F]
- 70002 [F]
- 70003 [F]
- 70004 [D]
- 70005 [F]
- 70006 [F]
- 70009 [D]
- 70010 [D]
- 70011 [D]
- 70033 [C]
- 70055 [D]
- 70060 [C]
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.
CDC Health Data for Metairie
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
Metairie: Remediation Cost in Perspective
Equity impact data for Metairie lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Metairie are relatively low compared to home values. The $1,308–$2,917 estimated range is a small fraction of median property value. Home values are 95% above the Louisiana average.
Climate-Related Water Risk for Metairie
FEMA data places 100% of Metairie's ZIP codes inside designated flood zones, and the NFIP claim record confirms the real-world impact: 46945 filed claims representing decades of documented flood events with consequences for property and, at sufficient severity, for local water infrastructure.
Metairie has a significant flood history with 46,945 FEMA flood insurance claims on record, averaging $30,994 per claim. With 100% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
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>$1,933</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 Metairie
- 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. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- 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 Metairie, LA