Berlin Water Control Commission

PWSID: CT0070021

1 active health-based violation
This system currently has unresolved violations for: 5200. These violations mean contaminant levels exceeded EPA limits or required treatment was not performed.

This system has more violations on record than 99% of water systems in Connecticut.

Violation trend: 43.2 per year over the last 5 years, up from 20.0 per year in the previous 5.

System Details

Population Served5,128
Service Connections2,557
Water SourceSurface Water Purchased
System TypeCommunity Water System
OwnerLocal Government
StatusActive
CityBerlin
EPA ZIP on File06037

Areas Served

  • Hartford County

Lead & Copper Testing

ContaminantLevelEPA Action LevelStatus
Lead (90th percentile)0.0040 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0021 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level

4 Active Violations

ContaminantViolationDateHealth-BasedStatus
5200TT2024-10-17YesOpen
7500Other2007-05-31Open
7500Other2006-10-13Open
7500Other2006-06-02Open

Violation History (376 total)

ContaminantViolationDateHealth-BasedStatus
2950MR2024-01-01 MajorReturned to Compliance
2950MR2024-01-01 MajorReturned to Compliance
2950MR2024-01-01 MajorReturned to Compliance
2950MR2024-01-01 MajorAcknowledged
2456MR2024-01-01 MajorReturned to Compliance
2456MR2024-01-01 MajorReturned to Compliance
2456MR2024-01-01 MajorReturned to Compliance
2456MR2024-01-01 MajorAcknowledged
2210MR2024-01-01 MajorReturned to Compliance
2210MR2024-01-01 MajorAcknowledged
2210MR2024-01-01 MajorReturned to Compliance
2210MR2024-01-01 MajorReturned to Compliance
2214MR2024-01-01 MajorReturned to Compliance
2214MR2024-01-01 MajorAcknowledged
2214MR2024-01-01 MajorReturned to Compliance
2214MR2024-01-01 MajorReturned to Compliance
2216MR2024-01-01 MajorReturned to Compliance
2216MR2024-01-01 MajorAcknowledged
2216MR2024-01-01 MajorReturned to Compliance
2216MR2024-01-01 MajorReturned to Compliance
2248MR2024-01-01 MajorReturned to Compliance
2248MR2024-01-01 MajorAcknowledged
2248MR2024-01-01 MajorReturned to Compliance
2248MR2024-01-01 MajorReturned to Compliance
2251MR2024-01-01 MajorReturned to Compliance
2251MR2024-01-01 MajorAcknowledged
2251MR2024-01-01 MajorReturned to Compliance
2251MR2024-01-01 MajorReturned to Compliance
2378MR2024-01-01 MajorReturned to Compliance
2378MR2024-01-01 MajorAcknowledged
2378MR2024-01-01 MajorReturned to Compliance
2378MR2024-01-01 MajorReturned to Compliance
2380MR2024-01-01 MajorReturned to Compliance
2380MR2024-01-01 MajorAcknowledged
2380MR2024-01-01 MajorReturned to Compliance
2380MR2024-01-01 MajorReturned to Compliance
2408MR2024-01-01 MajorReturned to Compliance
2408MR2024-01-01 MajorAcknowledged
2408MR2024-01-01 MajorReturned to Compliance
2408MR2024-01-01 MajorReturned to Compliance
2410MR2024-01-01 MajorReturned to Compliance
2410MR2024-01-01 MajorAcknowledged
2410MR2024-01-01 MajorReturned to Compliance
2410MR2024-01-01 MajorReturned to Compliance
2412MR2024-01-01 MajorReturned to Compliance
2412MR2024-01-01 MajorAcknowledged
2412MR2024-01-01 MajorReturned to Compliance
2412MR2024-01-01 MajorReturned to Compliance
2413MR2024-01-01 MajorReturned to Compliance
2413MR2024-01-01 MajorAcknowledged

Showing 50 of 372 historical violations.

Understanding This Water System's Record

Berlin Water Control Commission is a community water system water system that draws from surface water purchased sources and serves a population of 5,128 in Berlin, Connecticut. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.

What Do These Violations Mean?

Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.

What Should You Do?

Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.