Longleaf, LA: High Radon Risk — 60/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Within Longleaf, water safety data for LA reveals moderate quality — federal standards are generally met, but documented exceptions exist in specific service areas.
How Longleaf Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Longleaf Water
- Estimated remediation: $2,500 per household.
- CDC health risk index: 15.52 — above typical levels.
Who Supplies Your Water in Longleaf
The structure of water supply in Longleaf, LA is straightforward: one utility provides the bulk of residential service among 1 tracked system, concentrating rate-setting and infrastructure decisions under a single organization.
Overview
We track water quality and home safety data for 1 ZIP code in Longleaf, Louisiana, covering 1 community water system serving approximately 3,600 people.
No EPA violations recorded across any ZIP codes in Longleaf — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Longleaf: C (60/100)
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
Longleaf water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Longleaf
- 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 |
|---|---|---|---|
| 71448 | C | FOREST HILL UTILITIES | 3,600 |
All ZIP Codes in Longleaf
- 71448 [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.
Health Outcomes in Longleaf
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
Flood & Climate Risk in Longleaf
Measured across the NFIP's multi-decade tracking period, Longleaf shows a moderate flood record — 1 claim and 100% of ZIP codes carrying FEMA flood zone status. For water quality, that combination matters because flood events at this frequency can periodically stress infrastructure: treatment plants, private wells, and distribution systems all face elevated risk during significant flooding.
Longleaf has a moderate flood history with 1 FEMA claims averaging $219,928 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 Longleaf
- 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.
Deep Dive Reports
Detailed analysis for Longleaf, LA