Winooski, VT: 1 Violation — 93/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Across Winooski, EPA monitoring data shows low violation rates and healthy safety margins — a pattern that places the city well above VT's average for drinking water compliance across recent reporting cycles.
How Winooski Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Winooski Residents
- Your city's water systems recorded 1 violation in the past 5 years.
- Average lead level: 0.0004 mg/L.
- Homes built before 1986: 69% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 9.51.
Winooski's Water Providers
Structurally, Winooski, VT's water supply is divided. Federal data identifies 2 water systems in the area, with 2 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.
Overview
We track water quality and home safety data for 1 ZIP code in Winooski, Vermont, covering 2 community water systems serving approximately 8,198 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Winooski: A (93/100)
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
Winooski water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0004 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 05404 | A | 1 | 0 | Winooski Water Department |
All ZIP Codes in Winooski
- 05404 [A] — 1 violation
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.
Winooski 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
What's in Winooski's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Winooski Infrastructure Age
With 69% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Heavily weighted toward older construction, Winooski's housing stock carries a median build year of 1964. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.
Over half of homes in Winooski were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Winooski
Equity impact data for Winooski lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Winooski are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 25% above the Vermont average.
Winooski: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Routinely in Winooski, where 69% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Winooski: Flood History & Water Damage Risk
Flood risk in Winooski occupies the middle ground: 3 NFIP claims and 100% of local ZIP codes within FEMA flood zones. At that level, the risk pathways connecting flooding to water quality — treatment system stress, well infiltration, distribution backflow — become relevant considerations during significant flood events, even if day-to-day water quality is unaffected by flood history.
Winooski has a moderate flood history with 3 FEMA claims averaging $6,087 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 Winooski, VT