North Grosvenordale, CT Water Safety: 63/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-04
North Grosvenordale shows moderate tap water quality for CT — some areas carry documented EPA violations while others meet standards without issues.
How North Grosvenordale Compares
Data: EPA SDWIS Last verified: 2026-06-04
North Grosvenordale Water: The Quick Version
- Homes built before 1986: 79% — older plumbing may contain lead solder.
- Estimated remediation: $2,200 per household.
Water Systems Serving North Grosvenordale
Because residential water in North Grosvenordale, CT flows primarily through a single utility, infrastructure decisions, rate-setting, and EPA compliance are all managed within one organizational structure. Federal records show 1 system active in the area, but one provider dominates the service landscape for most homes and apartments.
Overview
We track water quality and home safety data for 1 ZIP code in North Grosvenordale, Connecticut, covering 1 community water system serving approximately 4,442 people.
No EPA violations recorded across any ZIP codes in North Grosvenordale — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for North Grosvenordale: 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
North Grosvenordale water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for North Grosvenordale
- 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 |
|---|---|---|---|
| 06255 | C | CTWC - THOMPSON SYSTEM | 1,070 |
All ZIP Codes in North Grosvenordale
- 06255 [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.
How Old Is North Grosvenordale's Housing Stock?
With 79% 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
When a city's housing median build year is 1964, as in North Grosvenordale, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.
Over half of homes in North Grosvenordale 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.
North Grosvenordale: Remediation Cost in Perspective
Given current North Grosvenordale valuations, the remediation-to-property-value ratio is low — most homeowners are looking at a proportionally modest share that fits within routine financial planning.
Remediation costs in North Grosvenordale 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 27% below the Connecticut average.
Protecting Children from Lead in North Grosvenordale
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.
When older housing represents 79% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual North Grosvenordale address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for North Grosvenordale
Flood risk in North Grosvenordale occupies the middle ground: 1 NFIP claim and 100% of local ZIP codes within FEMA flood zones. At that level, the risk pathways connecting flooding to water quality — treatment system stress, well infiltration, distribution backflow — become relevant considerations during significant flood events, even if day-to-day water quality is unaffected by flood history.
North Grosvenordale 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 North Grosvenordale
- 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 79% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for North Grosvenordale, CT