Waterbury, CT: 32 Health Violations — 62/100 (2026)
16 ZIP codes · 5 water systems · Updated 2026-06-03
Recent monitoring in Waterbury shows middle-tier safety for CT — some systems are clean; others have logged EPA violations.
How Waterbury Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Waterbury, CT
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Waterbury's 16 ZIP codes.
Key Facts for Waterbury Residents
- Your city's water systems recorded 352 violations in the past 5 years.
- Estimated remediation: $2,213 per household.
Waterbury's Water Providers
Waterbury, CT draws its residential water from 3 separate providers among the 5 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.
Overview
We track water quality and home safety data for 16 ZIP codes in Waterbury, Connecticut (population ~114,453), covering 5 community water systems serving approximately 559,368 people region-wide.
16 of 16 ZIP codes (100%) have recorded EPA violations. 32 health-based violations documented.
Home Safety Score
Average Home Safety Score for Waterbury: C (62/100)
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
Waterbury water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0000 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 16 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 153 | 16 |
| Surface Water Treatment Rule | Treatment Technique | 68 | 16 |
| Consumer Confidence Report Rule | Reporting | 51 | 16 |
| Stage 2 DBP Rule | Treatment Technique | 34 | 16 |
| Lead and Copper Rule | Treatment Technique | 34 | 16 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 06701 | C | 22 | 2 | Waterbury Water Department |
| 06702 | C | 22 | 2 | Waterbury Water Department |
| 06703 | C | 22 | 2 | Waterbury Water Department |
| 06704 | C | 22 | 2 | Waterbury Water Department |
| 06705 | C | 22 | 2 | Waterbury Water Department |
| 06706 | C | 22 | 2 | Waterbury Water Department |
| 06708 | C | 22 | 2 | Waterbury Water Department |
| 06710 | C | 22 | 2 | Waterbury Water Department |
| 06720 | C | 22 | 2 | Waterbury Water Department |
| 06721 | C | 22 | 2 | Waterbury Water Department |
All ZIP Codes in Waterbury
- 06701 [C] — 22 violations ⚠
- 06702 [C] — 22 violations ⚠
- 06703 [C] — 22 violations ⚠
- 06704 [C] — 22 violations ⚠
- 06705 [C] — 22 violations ⚠
- 06706 [C] — 22 violations ⚠
- 06708 [C] — 22 violations ⚠
- 06710 [C] — 22 violations ⚠
- 06720 [C] — 22 violations ⚠
- 06721 [C] — 22 violations ⚠
- 06722 [C] — 22 violations ⚠
- 06723 [C] — 22 violations ⚠
- 06724 [C] — 22 violations ⚠
- 06725 [C] — 22 violations ⚠
- 06726 [C] — 22 violations ⚠
- 06749 [C] — 22 violations ⚠
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.
What's in Waterbury's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Waterbury
While Waterbury homeowners face a manageable path to remediation, the equity share sits in the moderate tier — a signal that proactive budgeting matters more here than in lower-ratio markets.
Remediation costs are moderate relative to home values in Waterbury. The estimated $1,425–$3,131 range is manageable for most homeowners but still worth budgeting for. Home values are 56% below the Connecticut average.
Waterbury: Flood History & Water Damage Risk
Flood activity in Waterbury is neither negligible nor at the level of the highest-exposure areas in the NFIP dataset. The 98-claim record and 44% flood zone coverage suggest a community that has experienced recurrent events but has not faced the kind of sustained, severe exposure where water-supply contamination becomes a primary public health concern. It sits in a middle range where flood history merits inclusion in any complete local water quality picture.
Waterbury has a moderate flood history with 98 FEMA claims averaging $11,673 per payout. 44% 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>$2,213</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 Waterbury
- 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. Filters rated for Stage 1 DBP Rule can reduce the most common contaminant found in Waterbury's water.
- 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 Waterbury, CT