Ctwc - Amston Lake Division
EPA ID: CT0670331 · 910 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Ctwc - Amston Lake Division (CT0670331): no drinking-water violations recorded since 2021. Ctwc - Amston Lake Division has no EPA violations on record; the utility serves 910 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Ctwc - Amston Lake Division Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Ctwc - Amston Lake Division have a median household income of $148,086 and about 9,109 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 53% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Ctwc - Amston Lake Division's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Connecticut
System Overview
Ctwc - Amston Lake Division (EPA ID: CT0670331) is a community water system in Connecticut that serves approximately 910 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0015 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by CT or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Ctwc - Amston Lake Division (CT0670331) on EPA.gov.
Frequently Asked Questions
Is Ctwc - Amston Lake Division water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Ctwc - Amston Lake Division in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Ctwc - Amston Lake Division serve?
Ctwc - Amston Lake Division serves approximately 910 people across 2 ZIP codes in Connecticut.
Where does Ctwc - Amston Lake Division get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Ctwc - Amston Lake Division Water Quality Report, CT. https://zipcheckup.com/water-system/ct0670331/
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author = {{ZipCheckup}},
title = {{Ctwc - Amston Lake Division Water Quality Report, CT}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ct0670331/}
}