New Sarpy, LA: High Radon Risk — 47/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Water systems serving New Sarpy record elevated violation rates against LA benchmarks — residents in affected areas may want to check their local system's current compliance status.
How New Sarpy Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for New Sarpy Residents
- Estimated remediation: $1,700 per household.
- CDC health risk index: 13.78 — above typical levels.
New Sarpy's Water Providers
With one provider handling most of New Sarpy's residential supply in LA, water service accountability is concentrated in a single utility among the 1 system on record.
Overview
We track water quality and home safety data for 1 ZIP code in New Sarpy, Louisiana, covering 1 community water system serving approximately 52,879 people.
No EPA violations recorded across any ZIP codes in New Sarpy — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for New Sarpy: 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
New Sarpy water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for New Sarpy
- 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 |
|---|---|---|---|
| 70078 | D | ST CHARLES PARISH DEPT OF WATERWORKS | 52,879 |
All ZIP Codes in New Sarpy
- 70078 [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.
New Sarpy 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
New Sarpy: Flood History & Water Damage Risk
Taken together, New Sarpy's 99 NFIP flood insurance claims and 100% FEMA flood zone coverage place it in the moderate range of exposure. That middle position has specific implications for water quality. The contamination pathways that flooding can open — surface water overwhelming treatment facility intake, floodwaters infiltrating private wells, distribution pressure changes creating backflow — are not constant risks in a moderate-exposure community. But they do become active during significant flood events, and the claim record here indicates enough of those events to make flood timing an occasional factor in local water quality conversations.
New Sarpy has a moderate flood history with 99 FEMA claims averaging $9,673 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>$1,700</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 New Sarpy
- 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 New Sarpy, LA