Waterbury Water Department
EPA ID: CT1510011 ยท 107,271 people served ยท 11 ZIP codes
ZipCheckup's reading of EPA SDWIS for Waterbury Water Department (CT1510011): 6 EPA violations in the last five years. Even though Waterbury Water Department accumulated 6 violations over five years, all have been formally resolved - the provider currently meets EPA standards for 107,271 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Waterbury Water Department Source: EPA SDWIS service area boundaries.
Service area boundary - Grade C
Service Area Demographics
The Waterbury Water Department serves a community with a median household income of $63,705 and an estimated 192,089 residents across its service area. Approximately 80% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
๐ Where Does Your Water Come From?
Waterbury Water Department's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Detected Contaminants
How Waterbury Water Department compares to EPA limits
What This Means For You
Surface Water Treatment Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Stage 1 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 7 detections recorded. 3 exceed federal EPA limits (4 ppt for PFOA/PFOS).
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
Waterbury Water Department (EPA ID: CT1510011) is a community water system in Connecticut that serves approximately 107,271 people from surface water sources.
This system provides water to 11 ZIP codes across 6 communities.
ZIP-Area Home Safety Context: C (64/100)
This is the average Home Safety Score for 5 of 11 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 6 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| December 30, 2025 | Stage 1 DBP Rule | Non-health-based | Resolved |
| July 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| December 30, 2022 | Stage 1 DBP Rule | Non-health-based | Resolved |
| August 10, 2022 | Surface Water Treatment Rule | Non-health-based | Resolved |
| August 10, 2021 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2021 | Surface Water Treatment Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Failure | 4 | No |
| Stage 1 DBP Rule | Treatment Failure | 2 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.00001 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 1 (High 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 $20โ$50 (DIY kit) ยท Professional inspection: $150โ$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking โ 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.
- 06702 - Waterbury
- 06704 - Waterbury
- 06705 - Waterbury
- 06706 - Waterbury
- 06708 - Waterbury
- 06710 - Waterbury
- 06716 - Wolcott
- 06762 - Middlebury
- 06770 - Naugatuck
- 06779 - Oakville
- 06795 - Watertown
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Waterbury Water Department (CT1510011) on EPA.gov.
Frequently Asked Questions
Is Waterbury Water Department water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Waterbury Water Department; its 6 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Waterbury Water Department serve?
Waterbury Water Department serves approximately 107,271 people across 11 ZIP codes in Connecticut.
Where does Waterbury Water Department get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ per-system federal sampling, 2023โ2025. EPA UCMR5 monitoring program โ
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Waterbury Water Department (CT): 6 EPA Violations. https://zipcheckup.com/water-system/ct1510011/
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author = {{ZipCheckup}},
title = {{Waterbury Water Department (CT): 6 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ct1510011/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report โ
Contact your utility
Waterbury Water Department (EPA ID: CT1510011) - request the latest Consumer Confidence Report or ask about specific contaminants.