Boil water advisories in Delaware
We do not read this state's advisories
We checked Delaware DHSS Office of Drinking Water's site on 22 August 2026 and did not find a list of active advisories published there. That is one page on one day, not a statement about what Delaware DHSS Office of Drinking Water publishes. Advisories may still be issued by your utility or your county directly.
Open Delaware DHSS Office of Drinking Water's site
This is not a statement that your water is safe. We do not read this state's advisories, so this page cannot tell you whether one is in force. Your utility is the authority for your own water.
Where to check instead
Our database holds 103 public water systems in Delaware. That is a count of what is in our database, not a count of every public water system in the state.
The largest systems we hold data on here, by the population each one reports serving:
- ARTESIAN WATER COMPANY
- WILMINGTON WATER DEPARTMENT
- VEOLIA WATER DELAWARE, INC
- REHOBOTH PUMP DISTRICT
- DOVER WATER DEPARTMENT
- BETHANY BAY PUMP DISTRICT
- REHOBOTH BEACH WATER DEPARTMENT
- ARTESIAN SOUTHERN SUSSEX REGIONAL
- GARRISON LAKE PUMP DISTRICT
- SUSSEX SHORES WATER COMPANY
Or start from a ZIP code:
Check a ZIP code
Enter a ZIP code and we will show you the water systems we hold for it, and what the state agency's list said about each one when we last read it.
Questions about this page
- Does this page list every boil water advisory in Delaware?
- No. We do not read Delaware DHSS Office of Drinking Water's advisories into this page, so nothing on it is a list of what is in force. What this page carries instead is where those advisories are published and which water systems our own database holds.
- Where are boil water advisories for Delaware published?
- Delaware DHSS Office of Drinking Water is the agency this page links to. We checked its site on 22 August 2026 and did not find a list of active advisories published there. That is one page on one day, not a statement about what Delaware DHSS Office of Drinking Water publishes, and a utility or a county may issue a notice directly.
- How many water systems does this page cover?
- Our database holds 103 public water systems in Delaware. That is a count of what is in our database, not a count of every public water system in the state. Advisories are counted by water system, keyed on the system's federal identifier, and never by the number of separate notices one system has been given.
- Is anything on this page a verdict about whether the water is safe?
- This is not a statement that your water is safe. We do not read this state's advisories, so this page cannot tell you whether one is in force. Your utility is the authority for your own water.
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