In ZipCheckup's scoring, Hartford, CT lands in the A-B grade tier.

Data: EPA SDWIS

Water Quality Map: Hartford, CT

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Overview

We track 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. The EPA snapshots used for this build directly map water systems to 6 of 36 ZIP codes.

6 of 6 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Hartford: A (100/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor	What It Measures
Water Quality	EPA violations and compliance history
PFAS MCL Screen	UCMR 5 testing against the covered federal MCLs
Radon Risk	EPA radon zone classification
Annual AQI	EPA AirData county-year median with at least 90 observed days

Water Sources

Hartford water systems draw from: Surface water.

Lead & Copper

• Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
• 0 of 6 ZIP codes with known status exceed the EPA lead action level

Radon Risk

36 of 36 ZIP records with known zones are in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Areas with Most Violations

All ZIP Codes in Hartford

• 06101
• 06102
• 06103 [A] - 1 violation
• 06104
• 06105 [A] - 1 violation
• 06106 [A] - 1 violation
• 06112 [A] - 1 violation
• 06114 [A] - 1 violation
• 06115
• 06120 [A] - 1 violation
• 06123
• 06126
• 06132
• 06134
• 06140
• 06141
• 06142
• 06143
• 06144
• 06145
• 06146
• 06147
• 06150
• 06151
• 06152
• 06153
• 06154
• 06155
• 06156
• 06160
• 06161
• 06167
• 06176
• 06180
• 06183
• 06199

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

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Historical NFIP Claim Context in Hartford

62

Total FEMA Flood Claims

$11,335

Avg Reported Sum With Payment Data

33%

A/V Share of Claim-Record ZIPs

Historical NFIP data for Hartford contains 62 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,335. Among ZIP codes with claim records, 33% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

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.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.