Skip to main content
💧 TapWaterData
Home/Utilities/Delaware/WILMINGTON WATER DEPARTMENT

WILMINGTON WATER DEPARTMENT

Serving 1 city in DE

Action Needed
11 above health guidelines
108K
People Served
1
City
1
Water Sources
0
MCL Violations

Official WILMINGTON WATER DEPARTMENT Resources

WILMINGTON WATER DEPARTMENT Service Area

Loading map...

Service Area

This map shows the approximate service area for WILMINGTON WATER DEPARTMENT. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.

WILMINGTON WATER DEPARTMENT Water Quality Grade

F
Failing

Significant water quality issues. Filter recommended.

Quality Score0/100
11
Above Health Guidelines
0
EPA Violations

Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).

Is WILMINGTON WATER DEPARTMENT Water Safe to Drink?

WILMINGTON WATER DEPARTMENT has reported 11 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.

This utility serves 107,976 people across 1 city in DE. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.

WILMINGTON WATER DEPARTMENT Service Area

WILMINGTON WATER DEPARTMENT Contact & Information

Emergency Line

https://www.wilmingtonde.gov/residents/311

24/7 After-Hours

Mailing Address

Water Work Center 203 E. 26th Street Wilmington, DE 19801

Water Sources & Treatment

Water Sources

Surface water

Treatment Methods

conventionalfiltration

Disinfectant Used

hypochlorite

WILMINGTON WATER DEPARTMENT Annual Water Quality Reports

2026 Water Quality Report
Latest Consumer Confidence Report (CCR)
View Report

Historical reports are being compiled. Check back soon for archived water quality data.

What is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.

Recommended Water Filters for WILMINGTON WATER DEPARTMENT

Based on water quality data from cities served by WILMINGTON WATER DEPARTMENT, we recommend NSF-certified filters that can remove contaminants above health guidelines.

Stay Informed About Your Water Quality

Get EPA reports, filter recommendations, and safety alerts for your area.

Join 10,000+ people protecting their families. Unsubscribe anytime.