Eastconn - Danielson

PWSID: CT0690622

No active violations
This system has no unresolved violations. The most recent violation on record was 2019-09-29.

This system has more violations on record than 96% of water systems in Connecticut.

Violation trend: 0.0 per year over the last 5 years, down from 28.0 per year in the previous 5.

System Details

Population Served87
Service Connections1
Water SourceGroundwater
System TypeNon-Transient Non-Community
OwnerPrivate
StatusActive
CityNorth Windham
EPA ZIP on File06256

Areas Served

  • Killingly, Windham County

Lead & Copper Testing

ContaminantLevelEPA Action LevelStatus
Lead (90th percentile)0.0009 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0001 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level

Violation History (141 total)

ContaminantViolationDateHealth-BasedStatus
5000MR2019-09-29Returned to Compliance
5000MR2019-07-01Returned to Compliance
5000MR2019-07-01Returned to Compliance
5000MR2018-09-29Returned to Compliance
7500Other2018-08-15Returned to Compliance
5000MR2018-04-01Returned to Compliance
5000MR2017-07-01Returned to Compliance
5000MR2017-07-01Returned to Compliance
2021MR2017-04-01 MajorReturned to Compliance
2022MR2017-04-01 MajorReturned to Compliance
2031MR2017-04-01 MajorReturned to Compliance
2032MR2017-04-01 MajorReturned to Compliance
2034MR2017-04-01 MajorReturned to Compliance
2035MR2017-04-01 MajorReturned to Compliance
2036MR2017-04-01 MajorReturned to Compliance
2037MR2017-04-01 MajorReturned to Compliance
2039MR2017-04-01 MajorReturned to Compliance
2040MR2017-04-01 MajorReturned to Compliance
2041MR2017-04-01 MajorReturned to Compliance
2042MR2017-04-01 MajorReturned to Compliance
2043MR2017-04-01 MajorReturned to Compliance
2044MR2017-04-01 MajorReturned to Compliance
2045MR2017-04-01 MajorReturned to Compliance
2046MR2017-04-01 MajorReturned to Compliance
2047MR2017-04-01 MajorReturned to Compliance
2050MR2017-04-01 MajorReturned to Compliance
2051MR2017-04-01 MajorReturned to Compliance
2065MR2017-04-01 MajorReturned to Compliance
2066MR2017-04-01 MajorReturned to Compliance
2067MR2017-04-01 MajorReturned to Compliance
2070MR2017-04-01 MajorReturned to Compliance
2076MR2017-04-01 MajorReturned to Compliance
2077MR2017-04-01 MajorReturned to Compliance
2105MR2017-04-01 MajorReturned to Compliance
2110MR2017-04-01 MajorReturned to Compliance
2274MR2017-04-01 MajorReturned to Compliance
2306MR2017-04-01 MajorReturned to Compliance
2326MR2017-04-01 MajorReturned to Compliance
2356MR2017-04-01 MajorReturned to Compliance
2383MR2017-04-01 MajorReturned to Compliance
2440MR2017-04-01 MajorReturned to Compliance
2595MR2017-04-01 MajorReturned to Compliance
2931MR2017-04-01 MajorReturned to Compliance
2946MR2017-04-01 MajorReturned to Compliance
2959MR2017-04-01 MajorReturned to Compliance
2005MR2017-04-01 MajorReturned to Compliance
2010MR2017-04-01 MajorReturned to Compliance
2015MR2017-04-01 MajorReturned to Compliance
2020MR2017-04-01 MajorReturned to Compliance
8000MON2017-01-01 MajorReturned to Compliance

Showing 50 of 141 historical violations.

Understanding This Water System's Record

Eastconn - Danielson is a non-transient non-community water system that draws from groundwater sources and serves a population of 87 in North Windham, 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.