Newark Water Department

PWSID: DE0000630

No active violations
This system has no unresolved violations. The most recent violation on record was 2018-06-01.

This system has more violations on record than 94% of water systems in Delaware.

Violation trend: 0.0 per year over the last 5 years, down from 0.2 per year in the previous 5.

System Details

Population Served40,000
Service Connections8,962
Water SourceSurface Water
System TypeCommunity Water System
OwnerLocal Government
StatusActive
CityNewark
EPA ZIP on File19711

Areas Served

  • Newark, New Castle County

Lead & Copper Testing

ContaminantLevelEPA Action LevelStatus
Lead (90th percentile)0.0016 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0010 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0010 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0010 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0010 mg/L0.015 mg/LBelow Action Level

Violation History (12 total)

ContaminantViolationDateHealth-BasedStatus
1925MCL
Measured: 6.40 SU
2018-06-01YesReturned to Compliance
2456MR2014-07-01 MajorReturned to Compliance
2950MR2014-07-01 MajorReturned to Compliance
2456MR2014-04-01 MajorReturned to Compliance
2950MR2014-04-01 MajorReturned to Compliance
2456MR2014-01-01 MajorReturned to Compliance
2950MR2014-01-01 MajorReturned to Compliance
2456MR2013-10-01 MajorReturned to Compliance
2950MR2013-10-01 MajorReturned to Compliance
0600MR2010-01-01Returned to Compliance
2456MR2009-09-01 MajorReturned to Compliance
2950MR2009-09-01 MajorReturned to Compliance

Understanding This Water System's Record

Newark Water Department is a community water system water system that draws from surface water sources and serves a population of 40,000 in Newark, Delaware. 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.