Drinking Water · Delaware

Is my Delaware water safe?

Drinking-water violations for every public water system in Delaware, with health-based violations flagged and current compliance status. Built directly from EPA's Safe Drinking Water records.

How to read this. These are violations recorded in EPA's Safe Drinking Water Information System (SDWIS), shown without interpretation. A health-based violation means a contaminant exceeded a health limit; many other violations are monitoring or reporting lapses. A violation is counted as open only when EPA records no return-to-compliance date; otherwise the system has returned to compliance. The records here include both historical and recent violations, and EPA's data syncs roughly quarterly, so a very recent violation may not appear yet. For the authoritative, current status of any system, follow its EPA report link. Lead service lines are covered separately below. First State Lens draws no conclusions. We show you the data; you decide.

Public Water Systems

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Active and inactive public water systems on record in Delaware.

SOURCE · EPA SDWIS

Systems With Violations On Record

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Systems with at least one recorded violation (historical or recent).

SOURCE · EPA SDWIS

Health-Based Violations

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Recorded violations where a contaminant exceeded a health-based limit.

SOURCE · EPA SDWIS

Currently Open

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Violations with no return-to-compliance date recorded.

SOURCE · EPA SDWIS · RTC_DATE

Systems with violations on record

SORTED BY HEALTH-BASED, THEN TOTAL

Delaware public water systems with one or more recorded violations. Most are historical and resolved; open means no return-to-compliance date. Follow a system's EPA link for its current status.
Water system	City	People served	Violations	Health-based	Open	EPA report
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SOURCE · EPA ENVIROFACTS SDWIS · WATER_SYSTEM(DE) JOIN VIOLATION ON PWSID

Lead service lines

CHECK YOUR UTILITY

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DELAWARE PUBLISHES NO CENTRAL ADDRESS-LEVEL LEAD-LINE DATASET · EACH UTILITY MAINTAINS ITS OWN INVENTORY