June 17, 2026
Nitrates in Delaware Drinking Water 2026
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Nitrates in Delaware Drinking Water 2026
Nitrates contamination has been detected in drinking water systems across Delaware. High nitrate levels cause methemoglobinemia (blue baby syndrome) in infants. EPA MCL is 10 mg/L. Our analysis of Delaware water quality reports found Nitrates present in 66 cities and water systems statewide. If you live in one of these communities, a certified home filter can significantly reduce your exposure -- browse Nitrates filters at PureWaterGuys.
Cities in Delaware with Nitrates Detected
The following 66 water systems in Delaware reported Nitrates in their annual water quality reports. Click any city to read the full report.
| City / Water System | Water Quality Report |
|---|---|
| Bear De Water Quality Report 2026 | View Report |
| Bethany Beach De Water Quality Report 2026 | View Report |
| Bethany De Water Quality Report 2026 | View Report |
| Blades De Water Quality Report 2026 | View Report |
| Bo Mata De Cana Orocovis Pr Water Quality Report 2026 | View Report |
| Bowers Beach De Water Quality Report 2026 | View Report |
| Bridgeville De Water Quality Report 2026 | View Report |
| Camden De Water Quality Report 2026 | View Report |
| Camden Wyoming De Water Quality Report 2026 | View Report |
| Canterbury De Water Quality Report 2026 | View Report |
| Cherry Hill De Water Quality Report 2026 | View Report |
| Clarksville De Water Quality Report 2026 | View Report |
| Clayton De Water Quality Report 2026 | View Report |
| Crofton De Water Quality Report 2026 | View Report |
| Dagsboro De Water Quality Report 2026 | View Report |
| Delmar De Water Quality Report 2026 | View Report |
| Denton De Water Quality Report 2026 | View Report |
| Dover Afb De Water Quality Report 2026 | View Report |
| Dover De Water Quality Report 2026 | View Report |
| Felton De Water Quality Report 2026 | View Report |
| Frankford De Water Quality Report 2026 | View Report |
| Frederica De Water Quality Report 2026 | View Report |
| Georgetown De Water Quality Report 2026 | View Report |
| Glasgo De Water Quality Report 2026 | View Report |
| Greenwood De Water Quality Report 2026 | View Report |
| Harrington De Water Quality Report 2026 | View Report |
| Hartly De Water Quality Report 2026 | View Report |
| Hockessin De Water Quality Report 2026 | View Report |
| Kenton De Water Quality Report 2026 | View Report |
| Kitts Hummock De Water Quality Report 2026 | View Report |
| Laurel De Water Quality Report 2026 | View Report |
| Lewes De Water Quality Report 2026 | View Report |
| Lincoln De Water Quality Report 2026 | View Report |
| Long Neck De Water Quality Report 2026 | View Report |
| Magnolia De Water Quality Report 2026 | View Report |
| Middletown De Water Quality Report 2026 | View Report |
| Midway De Water Quality Report 2026 | View Report |
| Milford De Water Quality Report 2026 | View Report |
| Millsboro De Water Quality Report 2026 | View Report |
| Millville De Water Quality Report 2026 | View Report |
| Milton De Water Quality Report 2026 | View Report |
| Mount Pleasant De Water Quality Report 2026 | View Report |
| Mt Pleasant De Water Quality Report 2026 | View Report |
| Nassau De Water Quality Report 2026 | View Report |
| New Castle De Water Quality Report 2026 | View Report |
| Newark De Water Quality Report 2026 | View Report |
| Newport De Water Quality Report 2026 | View Report |
| Oak Orchard De Water Quality Report 2026 | View Report |
| Ocean View De Water Quality Report 2026 | View Report |
| Odessa De Water Quality Report 2026 | View Report |
| Pittsford De Water Quality Report 2026 | View Report |
| Port Penn De Water Quality Report 2026 | View Report |
| Rehoboth Beach De Water Quality Report 2026 | View Report |
| Rehoboth De Water Quality Report 2026 | View Report |
| Ridgely De Water Quality Report 2026 | View Report |
| Salisbury De Water Quality Report 2026 | View Report |
| Seaford De Water Quality Report 2026 | View Report |
| Sekbyville De Water Quality Report 2026 | View Report |
| Selbyville De Water Quality Report 2026 | View Report |
| Smyrna De Water Quality Report 2026 | View Report |
| Southfield De Water Quality Report 2026 | View Report |
| Willow Street De Water Quality Report 2026 | View Report |
| Wilmington De Water Quality Report 2026 | View Report |
| Winterthur De Water Quality Report 2026 | View Report |
| Wyoming De Water Quality Report 2026 | View Report |
| Yorklyn De Water Quality Report 2026 | View Report |
What Does This Mean For You?
Detecting Nitrates in your water supply does not necessarily mean immediate danger, but long-term exposure -- even at low levels -- carries measurable health risk. Reverse osmosis is the most effective method for removing nitrates from drinking water.
Our recommendation: View Nitrates filters certified for Delaware water conditions or take our free Water Finder Quiz to get a personalized recommendation.
Filter Nitrates From Your Delaware Tap Water
PureWaterGuys carries NSF-certified filters proven to reduce Nitrates and other contaminants found in Delaware water.
Shop Nitrates Filters Take the Water QuizFrequently Asked Questions
What is Nitrates?
High nitrate levels cause methemoglobinemia (blue baby syndrome) in infants. EPA MCL is 10 mg/L.
Is Delaware tap water safe to drink?
Water quality varies by city. Of the Delaware systems we analyzed, 66 detected Nitrates. Most levels are below EPA action thresholds, but long-term low-level exposure carries health risk. Check your city's report above or use a certified home filter as a precaution.
What filter removes Nitrates from tap water?
Reverse osmosis is the most effective method for removing nitrates from drinking water. See our Nitrates filter options.
Data sourced from EPA-mandated annual water quality reports (Consumer Confidence Reports). Last updated: 2026. Not all systems are required to test for every contaminant.