Manchester, CT: 20 Violations — 90/100 (2026)
4 ZIP codes · 5 water systems · Updated 2026-06-03
Compared to statewide averages in CT, Manchester scores well — health violations are below the norm and systems generally operate within federal standards.
How Manchester Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Manchester Residents
- Your city's water systems recorded 20 violations in the past 5 years.
- Average lead level: 0.002 mg/L.
- Estimated remediation: $2,400 per household.
Manchester's Water Providers
Water delivery in Manchester, CT is handled by 3 utilities rather than a single system — drawn from 5 providers in federal records, each filing its own compliance reports and setting its own rates.
Overview
We track water quality and home safety data for 4 ZIP codes in Manchester, Connecticut (population ~59,473), covering 5 community water systems serving approximately 543,906 people region-wide.
4 of 4 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Manchester: A (90/100)
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
Manchester water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0020 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): 4 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 10 | 4 |
| Contaminant 1045 | Other | 5 | 4 |
| Chlorite | Disinfection Byproducts | 5 | 4 |
| Consumer Confidence Report Rule | Reporting | 5 | 4 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 06040 | A | 5 | 0 | Manchester Water Department |
| 06041 | A | 5 | 0 | Manchester Water Department |
| 06042 | A | 5 | 0 | Manchester Water Department |
| 06045 | A | 5 | 0 | Manchester Water Department |
All ZIP Codes in Manchester
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 Manchester's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Manchester
Equity impact data for Manchester lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Manchester are relatively low compared to home values. The $1,600–$3,250 estimated range is a small fraction of median property value. Home values are 41% below the Connecticut average.
Manchester: 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.
Lead risk in Manchester 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.
Manchester: Flood History & Water Damage Risk
The National Flood Insurance Program captures decades of claims at the local level, building a record of cumulative community flood exposure. For Manchester, that record documents 34 claims and 75% of ZIP codes inside FEMA-designated flood zones. What makes those numbers relevant to water quality is the set of mechanisms flooding activates: heavy precipitation that floods treatment intake zones can introduce contaminants upstream of normal filtration; well casings in low-lying areas can be infiltrated by floodwaters carrying bacteria, sediment, and chemical residue; and distribution system pressure changes during flooding can create backflow conditions. These effects become more probable as flood frequency and magnitude increase — and the NFIP record indicates both are meaningful factors locally.
Manchester has a moderate flood history with 34 FEMA claims averaging $5,304 per payout. 75% 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>$2,400</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 Manchester, CT