Hartford, CT: 36 Violations — 92/100 (2026)
36 ZIP codes · 1 water system · Updated 2026-06-03
Within Hartford, safety indicators for tap water remain above the CT median — documented violations are infrequent and the city's compliance record sits in the upper tier.
How Hartford Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Hartford, CT
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
How ZIP codes in Hartford score across all safety grades.
What You Should Know About Hartford Water
- Your city's water systems recorded 36 violations in the past 5 years.
- Average lead level: 0.0067 mg/L.
- Estimated remediation: $1,411 per household.
Who Supplies Your Water in Hartford
The structure of water supply in Hartford, CT is straightforward: one utility provides the bulk of residential service among 1 tracked system, concentrating rate-setting and infrastructure decisions under a single organization.
Overview
We track water quality and home safety data for 36 ZIP codes in Hartford, Connecticut (population ~120,347), covering 1 community water system serving approximately 390,887 people region-wide.
36 of 36 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Hartford: A (92/100)
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
Hartford water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0067 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)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 36 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Fecal Coliform | Microbiological | 37 | 36 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 06101 | A | 1 | 0 | Metropolitan District Commission |
| 06102 | A | 1 | 0 | Metropolitan District Commission |
| 06103 | A | 1 | 0 | Metropolitan District Commission |
| 06104 | A | 1 | 0 | Metropolitan District Commission |
| 06105 | A | 1 | 0 | Metropolitan District Commission |
| 06106 | A | 1 | 0 | Metropolitan District Commission |
| 06112 | A | 1 | 0 | Metropolitan District Commission |
| 06114 | A | 1 | 0 | Metropolitan District Commission |
| 06115 | A | 1 | 0 | Metropolitan District Commission |
| 06120 | A | 1 | 0 | Metropolitan District Commission |
All ZIP Codes in Hartford
- 06101 [A] — 1 violation
- 06102 [A] — 1 violation
- 06103 [A] — 1 violation
- 06104 [A] — 1 violation
- 06105 [A] — 1 violation
- 06106 [A] — 1 violation
- 06112 [A] — 1 violation
- 06114 [A] — 1 violation
- 06115 [A] — 1 violation
- 06120 [A] — 1 violation
- 06123 [A] — 1 violation
- 06126 [A] — 1 violation
- 06132 [A] — 1 violation
- 06134 [A] — 1 violation
- 06140 [A] — 1 violation
- 06141 [A] — 1 violation
- 06142 [A] — 1 violation
- 06143 [A] — 1 violation
- 06144 [A] — 1 violation
- 06145 [A] — 1 violation
- 06146 [A] — 1 violation
- 06147 [A] — 1 violation
- 06150 [A] — 1 violation
- 06151 [A] — 1 violation
- 06152 [A] — 1 violation
- 06153 [A] — 1 violation
- 06154 [A] — 1 violation
- 06155 [A] — 1 violation
- 06156 [A] — 1 violation
- 06160 [A] — 1 violation
- 06161 [A] — 1 violation
- 06167 [A] — 1 violation
- 06176 [A] — 1 violation
- 06180 [A] — 1 violation
- 06183 [A] — 1 violation
- 06199 [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.
Top Contaminants in Hartford Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Hartford Homeowners
Because property values in Hartford comfortably exceed estimated remediation costs, the equity impact here is proportionally small.
Remediation costs in Hartford are relatively low compared to home values. The $956–$2,122 estimated range is a small fraction of median property value. Home values are 44% below the Connecticut average.
Lead Exposure Risk for Children in Hartford
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.
Lead risk in Hartford appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Hartford
Measured across the NFIP's multi-decade tracking period, Hartford shows a moderate flood record — 62 claims and 25% of ZIP codes carrying FEMA flood zone status. For water quality, that combination matters because flood events at this frequency can periodically stress infrastructure: treatment plants, private wells, and distribution systems all face elevated risk during significant flooding.
Hartford has a moderate flood history with 62 FEMA claims averaging $11,015 per payout. 25% 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>$1,411</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 Hartford, CT