Harriston, MS Water Safety: 73/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Drinking water tracked for Harriston by MS authorities posts above-average scores — the majority of systems are free from health-based exceedances and the city's grade sits above the state median.
How Harriston Compares
Data: EPA SDWIS Last verified: 2026-06-03
Harriston Water: The Quick Version
- Estimated remediation: $1,200 per household.
- CDC health risk index: 19.07 — above typical levels.
Water Systems Serving Harriston
With one provider handling most of Harriston's residential supply in MS, 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 Harriston, Mississippi, covering 1 community water system serving approximately 2,000 people.
No EPA violations recorded across any ZIP codes in Harriston — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Harriston: B (73/100)
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
Harriston water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Harriston
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 39081 | B | CITY OF FAYETTE | 2,000 |
All ZIP Codes in Harriston
- 39081 [B]
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 Harriston
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
Climate-Related Water Risk for Harriston
Taken together, Harriston's 2 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.
Harriston has a moderate flood history with 2 FEMA claims averaging $10,706 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>$1,200</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.
Deep Dive Reports
Detailed analysis for Harriston, MS