Home/ Directory/ DE/ DOVER WATER DEPARTMENT

Water system · PWSID DE0000571

DOVER WATER DEPARTMENT

DOVER, DE · ~39,491 people served

Check your exact address → DOVER overview
100
Excellent
PurityRadar safety score

PWSID

DE0000571

State

Delaware

City

DOVER

Population served

39,491

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through May 2025). Levels in parts per trillion (ppt).

Lithium

18,300 ppt

limit —

No federal limit

Violations & enforcement

10

Violations on record

0

Unaddressed

8

Health-based

43

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2023. Official EPA record →

Other · EPA contaminant 7000 began Jul 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2001 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1999 Resolved
Other · EPA contaminant 7000 began Oct 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 1998 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 1994 Resolved

Recent enforcement actions

  • State action · SFJ Feb 2023
  • State action · SOX Jul 2015
  • State action · SII Jul 2015
  • State action · SOX May 2006
  • State action · SFJ May 2006
  • State action · SFG May 2006
  • State action · SFH May 2006
  • State action · SOX Oct 2001

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Arsenic

2 stations · latest Apr 2025

0.47 · max 1 ug/L · 32

Copper

1 station · latest Jul 2023

0.72 · max 0.72 ug/L · 1

Lead

1 station · latest Jul 2023

0.14 · max 0.14 ug/L · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system DE0000571 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.