West Cornwall, CT Water Safety: 63/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Recent monitoring in West Cornwall shows middle-tier safety for CT — some systems are clean; others have logged EPA violations.
How West Cornwall Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About West Cornwall Water
- Homes built before 1986: 75% — older plumbing may contain lead solder.
- Estimated remediation: $2,200 per household.
Who Supplies Your Water in West Cornwall
For most households in West Cornwall, CT, tap water comes from one provider — the utility that controls the local distribution system out of 1 tracked in federal record.
Overview
We track water quality and home safety data for 1 ZIP code in West Cornwall, Connecticut, covering 1 community water system serving approximately 843 people.
No EPA violations recorded across any ZIP codes in West Cornwall — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for West Cornwall: C (63/100)
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
West Cornwall water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for West Cornwall
- 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 |
|---|---|---|---|
| 06796 | C | AQUARION-CORNWALL | 98 |
All ZIP Codes in West Cornwall
- 06796 [C]
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 West Cornwall
With 75% 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
For residents trying to assess tap water risk in West Cornwall, the median build year of 1943 is the starting context. It signals that a majority of homes were constructed before 1986 — the year federal rules prohibited lead solder in new plumbing — and that a significant share likely predates 1970, when lead pipes were still a common choice for residential service connections. Neither risk tier is rare in this housing inventory.
Over half of homes in West Cornwall 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 West Cornwall Homeowners
In West Cornwall, property values comfortably outpace what documented remediation typically costs — the equity share is proportionally low.
Remediation costs in West Cornwall are relatively low compared to home values. The $1,200–$3,300 estimated range is a small fraction of median property value. Home values are 18% above the Connecticut average.
Lead Exposure Risk for Children in West Cornwall
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.
75% of West Cornwall housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark — household-level confirmation through a draw-test kit fits the local picture.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in West Cornwall
Flood exposure in West Cornwall is meaningful by NFIP measures — 1 claim on record and 100% of ZIP codes carrying FEMA flood zone designations. That level of activity makes flood history a relevant factor when evaluating local water quality over time.
West Cornwall has a moderate flood history with 1 FEMA claims. 100% 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>$2,200</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 West Cornwall
- 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 75% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for West Cornwall, CT