Middletown, Delaware: Is the Tap Water Safe to Drink?

2026 EPA water quality data for 14 community water systems serving 25,431+ residents. See violations, PFAS results, lead test results, and safety grades — free.

Is Middletown Tap Water Safe to Drink?

Based on the latest EPA data, Middletown tap water meets all federal drinking water standards. All 14 tested systems have received a safety grade of A or B, with no active health-based violations.

Middletown Water Quality Overview

Middletown, Delaware is served by 14 community water systems providing water to approximately 25,431 residents. These systems draw from groundwater (8), groundwater purchased (5), surface water purchased (1) sources. Middletown water systems have recorded 3 health-based violations in their history, though none are currently active. Including monitoring and reporting violations, there are 8 total violations on record.

Water Systems

Health Violations

14/14

Rated A or B

💧 Filter Guide 📖 Violations Explained 📄 Read Your CCR

Find Your Water System

Search by ZIP code to find your exact water provider and see its full EPA report.

All 14 water systems in Middletown

MIDDLETOWN WATER DEPARTMENT A

MIDDLETOWN, DE · 17,700 people · Surface Water Purchased ✓ No recent health violations

WILLOW GROVE MILL A

MIDDLETOWN, DE · 3,090 people · Groundwater Purchased ✓ No recent health violations

PARKSIDE A

MIDDLETOWN, DE · 1,467 people · Groundwater Purchased ✓ No recent health violations

DOVE RUN A

MIDDLETOWN, DE · 909 people · Groundwater Purchased ✓ No recent health violations

DOVE RUN SHOPPING CENTER A

MIDDLETOWN, DE · 855 people · Groundwater Purchased ✓ No recent health violations

BRICK MILL EARLY CHILDHOOD CENTER A

MIDDLETOWN, DE · 360 people · Groundwater Purchased ✓ No recent health violations

301 PLAZA A

MIDDLETOWN, DE · 300 people · Groundwater ✓ No recent health violations

SUMMIT VILLAGE SHOPPING CENTER A

MIDDLETOWN, DE · 250 people · Groundwater ✓ No recent health violations

ST ANDREWS SCHOOL I A

MIDDLETOWN, DE · 200 people · Groundwater ✓ No recent health violations

ST ANDREWS SCHOOL II A

MIDDLETOWN, DE · 140 people · Groundwater ✓ No recent health violations

DANIELS TRAILER PARK A

MIDDLETOWN, DE · 54 people · Groundwater ✓ No recent health violations

SUMMIT AVIATION A

MIDDLETOWN, DE · 50 people · Groundwater ✓ No recent health violations

JUSTSHOWUPCHURCH, INC. A

MIDDLETOWN, DE · 31 people · Groundwater ✓ No recent health violations

SUMMIT CENTER A

MIDDLETOWN, DE · 25 people · Groundwater ✓ No recent health violations

Looking for water quality data across the whole state? See our full Delaware tap water safety report covering Delaware’s EPA-regulated water systems.

Middletown Drinking Water: Frequently Asked Questions

Is Middletown, Delaware tap water safe to drink?

Based on the latest EPA data, Middletown tap water meets all federal drinking water standards. All 14 tested systems have received a safety grade of A or B, with no active health-based violations.

How many water utilities serve Middletown, Delaware?

14 community water systems serve Middletown, Delaware, providing water to approximately 25,431 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.

Does Middletown tap water have lead?

Lead in drinking water typically enters from old pipes and fixtures inside homes and buildings, not from the treatment plant. The EPA requires water systems to monitor for lead under the Lead and Copper Rule. Click any water system above to see its most recent 90th-percentile lead test results. Homes built before 1986 are most likely to have lead plumbing components.

What contaminants have been found in Middletown drinking water?

EPA violation records for Middletown water systems are listed on each utility's report page. Common regulated contaminants include disinfection byproducts (TTHMs, HAA5), coliform bacteria, nitrates, and lead. Click any utility above to see its full violation history going back 10 years.

How do I find out which water company serves my address in Middletown?

Enter your Middletown ZIP code in the search box at the top of this page. ClearWater will identify the specific water system serving your area and show you its EPA violation history, lead test results, and an overall safety grade. You can also check your water bill or your utility's annual Consumer Confidence Report (CCR).