GARRISON LAKE PUMP DISTRICT

DOVER, DE · ~17,148 people served

Check your exact address → DOVER overview

100

Excellent

PurityRadar safety score

PWSID

DE0000004

State

Delaware

City

DOVER

Population served

17,148

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 Aug 2025). Levels in parts per trillion (ppt).

Lithium

16,600 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2002. Official EPA record →

Other · EPA contaminant 7000 began Jul 2002 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2001 Resolved

Max contaminant level (MCL) · Nitrate health-based began Jul 1997 Resolved

Max contaminant level (MCL) · Nitrate health-based began Apr 1997 Resolved

Recent enforcement actions

EPA/federal action · EOX Jul 2002
State action · SOX Oct 2001
State action · SFG Aug 2001
State action · SOX Mar 1998
State action · SFJ Oct 1997
State action · SFG Oct 1997
State action · SFG Jul 1997
State action · SFJ Jul 1997

This profile is built from EPA public records for system DE0000004 — 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.