Office of Drinking Water
Consumer Confidence Report Rule
Community water systems must deliver a Consumer Confidence Report (CCR), also known as an annual drinking water quality report, to their customers annually. These reports provide customers with information about their local drinking water quality.
CCR Guidance:
- 2026 CCR news and information for community public water systems (updated annually)
- CCR compliance checklist
- CCR template
- Preparing Your Drinking Water Consumer Confidence Report, an EPA publication
- How to report bacteria detections and assessments in the CCR
- Guidance for reporting source water information in the CCR
- How to report levels of detected contaminants in the CCR
CCR Forms and Data
- 2025 Delaware Secondary Drinking Water Standards results (updated annually by April 1st)
Part A: alkalinity, chloride, hardness, iron, pH, sodium, sulfate
Part B: manganese, MTBE, nickel - Free chlorine residual annual data for all chlorinated community public water systems
CCR Links
- Drinking Water Watch is a tool that enables users to view drinking water data from any public water system in Delaware.
- Delaware regulated contaminants
- EPA’s CCR home page
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