Sterling Water System
EPA ID: CT1360011 · 308 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Sterling Water System (CT1360011): no EPA violations recorded in the last five years. Although compliance varies widely among water utilities nationally, Sterling Water System stands out with zero EPA violations over five consecutive monitoring years, delivering safe tap water to 308 residents and showing no enforcement activity across the entire reporting span.
Data: EPA SDWIS
Service Area Map
Coverage area for Sterling Water System Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Sterling Water System serves a community with a median household income of $94,120 and an estimated 2,905 residents across its service area. Approximately 61% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Sterling Water System's water is pumped from underground aquifers. 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 60th 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
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Sterling Water System (EPA ID: CT1360011) is a community water system in Connecticut that serves approximately 308 people from groundwater sources.
This system serves ZIP code 06377 in Sterling.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 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: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
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.
- 06377 - Sterling
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Sterling Water System (CT1360011) on EPA.gov.
Frequently Asked Questions
Is Sterling Water System water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Sterling Water System 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 Sterling Water System serve?
Sterling Water System serves approximately 308 people across 1 ZIP code in Connecticut.
Where does Sterling Water System get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Sterling Water System Water Quality Report, CT. https://zipcheckup.com/water-system/ct1360011/
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