Water Quality in MILLSBORO, DE (19966)

EPA violation data for public water systems serving ZIP code 19966.

44

Total Violations

31

Health-Based

13

Monitoring / Reporting

44

Resolved

What does this mean?

44 of 44 violations have been resolved. 31 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 13 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 84 Population served: 38,949

Violations Detail (44 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
NitrateHealth-BasedN/A11.99Mar 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A11.99Mar 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A11.99Mar 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A11.99Mar 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A10.65Mar 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A10.65Mar 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A10.65Mar 31, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A11.5Feb 28, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A11.5Feb 28, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateHealth-BasedN/A11.5Feb 28, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath

Lead & Copper Levels

Violation Timeline

2025(10)

Nitrate

02

Mar 31Resolved

Nitrate

02

Mar 31Resolved

Nitrate

02

Mar 31Resolved

Nitrate

02

Mar 31Resolved

Nitrate

02

Mar 31Resolved

Nitrate

02

Mar 31Resolved

Nitrate

02

Mar 31Resolved

Nitrate

02

Feb 28Resolved

Nitrate

02

Feb 28Resolved

Nitrate

02

Feb 28Resolved

2024(11)

Nitrate

02

Dec 31Resolved

Nitrate

02

Dec 31Resolved

Nitrate

02

Dec 31Resolved

Lead and Copper Rule

52

Dec 15Resolved

Lead and Copper Rule

52

Dec 15Resolved

Lead and Copper Rule

52

Dec 15Resolved

Lead and Copper Rule

52

Jun 30Resolved

Lead and Copper Rule

52

Jun 30Resolved

Nitrate

02

Jan 31Resolved

Nitrate

02

Jan 31Resolved

Nitrate

02

Jan 31Resolved

How Does This Compare?

MILLSBORO (19966) has 44 recorded violations, including 31 health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

Always look for filters certified by NSF International for the specific contaminants you want to remove.

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