South Burlington, VT: 8 Violations — 82/100 (2026)
2 ZIP codes · 7 water systems · Updated 2026-06-04
Based on current monitoring, South Burlington holds an above-average drinking water safety record for VT — violations are infrequent and typically minor when they do appear.
How South Burlington Compares
Data: EPA SDWIS Last verified: 2026-06-04
South Burlington Water: The Quick Version
- Your city's water systems recorded 8 violations in the past 5 years.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 9.51.
Water Systems Serving South Burlington
At present, 3 utilities serve the bulk of South Burlington, VT's residential water connections out of 7 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
Overview
We track water quality and home safety data for 2 ZIP codes in South Burlington, Vermont (population ~20,385), covering 7 community water systems serving approximately 79,485 people region-wide.
2 of 2 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for South Burlington: B (82/100)
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
South Burlington water systems draw from: Groundwater, Surface water.
Lead & Copper
- Lead data: not yet available for South Burlington
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 2 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 9 | 2 |
| Uranium | Radionuclides | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 05403 | B | 4 | 0 | South Burlington City Water System |
| 05407 | B | 4 | 0 | South Burlington City Water System |
All ZIP Codes in South Burlington
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 South Burlington
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
Key Contaminants Detected in South Burlington
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
South Burlington: Remediation Cost in Perspective
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in South Burlington is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in South Burlington are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 42% above the Vermont average.
Climate-Related Water Risk for South Burlington
The National Flood Insurance Program captures decades of claims at the local level, building a record of cumulative community flood exposure. For South Burlington, that record documents 6 claims and 50% of ZIP codes inside FEMA-designated flood zones. What makes those numbers relevant to water quality is the set of mechanisms flooding activates: heavy precipitation that floods treatment intake zones can introduce contaminants upstream of normal filtration; well casings in low-lying areas can be infiltrated by floodwaters carrying bacteria, sediment, and chemical residue; and distribution system pressure changes during flooding can create backflow conditions. These effects become more probable as flood frequency and magnitude increase — and the NFIP record indicates both are meaningful factors locally.
South Burlington has a moderate flood history with 6 FEMA claims averaging $1,482 per payout. 50% 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 South Burlington, VT