B72/100
NEWARK WATER DEPARTMENT — Water Quality Report 2026
Serving 40,000 people · Delaware
Water Source
Surface Water
County
—
System ID
DE0000630
Violations
17
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.06 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2014.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About NEWARK WATER DEPARTMENT
Is NEWARK WATER DEPARTMENT water safe to drink?
NEWARK WATER DEPARTMENT water receives a grade of B (72/100), which is considered good. Out of 70 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has NEWARK WATER DEPARTMENT detected?
70 contaminants were tested in NEWARK WATER DEPARTMENT's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does NEWARK WATER DEPARTMENT have any EPA violations?
Yes, NEWARK WATER DEPARTMENT has 17 EPA violation(s) on record, with the most recent in 2014. Violation types include MR, Other.
How many people does NEWARK WATER DEPARTMENT serve?
NEWARK WATER DEPARTMENT serves approximately 40,000 people, Delaware. The system provides water to 1 community: Newark.
What type of water does NEWARK WATER DEPARTMENT provide?
NEWARK WATER DEPARTMENT sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is DE0000630.
How does NEWARK WATER DEPARTMENT compare to other utilities in Delaware?
NEWARK WATER DEPARTMENT scores 72/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Delaware state page for a full comparison of water systems.