North Windham, CT Water Safety: 53/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Unlike better-scoring cities in CT, North Windham records health-based violations across a meaningful portion of its service areas — the overall safety grade is well below average.
How North Windham Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About North Windham Water
- Homes built before 1986: 51% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
Who Supplies Your Water in North Windham
Water supply in North Windham, CT follows a divided structure: 2 utilities account for the largest share of residential service out of 2 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.
Overview
We track water quality and home safety data for 1 ZIP code in North Windham, Connecticut (population ~1,796), covering 2 community water systems serving approximately 21,526 people region-wide.
No EPA violations recorded across any ZIP codes in North Windham — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for North Windham: D (53/100)
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
North Windham water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for North Windham
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 06256 | D | WINDHAM WATER WORKS | 21,214 |
All ZIP Codes in North Windham
- 06256 [D]
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.
Housing & Infrastructure in North Windham
With 51% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
The lead that enters tap water in older homes often comes not from the municipal supply but from the home's own plumbing — from solder used in copper joints before the 1986 federal ban, or from lead pipes installed before 1970. In North Windham, where the median build year is 1984, these older materials are widespread. More than half the residential stock predates the 1986 solder ban, and a significant fraction predates 1970 as well. For residents in those homes, the city-wide water quality picture is a less relevant frame than the specific materials inside their own walls and under their own street.
Over half of homes in North Windham were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for North Windham Homeowners
Remediation costs in North Windham are small relative to typical property values — the cost-to-value ratio here is favorable.
Remediation costs in North Windham are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 56% below the Connecticut average.
Lead Exposure Risk for Children in North Windham
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.
Wherever 51% of local housing was built before solder rules changed — as is the case in North Windham — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in North Windham
- 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. With 51% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for North Windham, CT