Unionville, CT Water Safety: 66/100 (2026)
2 ZIP codes · 4 water systems · Updated 2026-06-03
While Unionville avoids CT's lowest safety tiers, a portion of its water systems have logged documented violations.
How Unionville Compares
Data: EPA SDWIS Last verified: 2026-06-03
Unionville's Water Providers
Unionville, CT draws its residential water from 3 separate providers among the 4 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 2 ZIP codes in Unionville, Connecticut (population ~7,521), covering 4 community water systems serving approximately 26,748 people region-wide.
No EPA violations recorded across any ZIP codes in Unionville — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Unionville: C (66/100)
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
Unionville water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Unionville
- 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
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 06085 | C | Ctwc - Unionville System | 14,693 |
| 06087 | C | APPLE REHAB | 238 |
All ZIP Codes in Unionville
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.
How Remediation Costs Compare in Unionville
Remediation costs in Unionville are small relative to typical property values — the cost-to-value ratio here is favorable.
Remediation costs in Unionville are relatively low compared to home values. The $1,200–$2,600 estimated range is a small fraction of median property value. Home values are 3% below the Connecticut average.
Unionville: Flood History & Water Damage Risk
NFIP records stretching across multiple decades show Unionville accumulating 16 claims and carrying 50% of its ZIP codes inside FEMA flood zones — evidence of meaningful exposure that extends beyond isolated incidents. The mechanisms linking flooding to water quality haven't changed: treatment facilities can be overwhelmed, wells can be infiltrated, and distribution systems can experience backflow. For a community at this exposure level, those mechanisms shift from hypothetical to periodically relevant.
Unionville has a moderate flood history with 16 FEMA claims averaging $13,413 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>$1,800</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 Unionville
- 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 Unionville, CT