A
85

Excellent Water Quality

Harbeson, DE 19951

Sussex County · Population served: 86,928 · Data updated March 2026

Water Systems Serving This Area

🌊
REHOBOTH PUMP DISTRICT (TUI)
Groundwater · Pop. 81,417
PWSID: DE0000991
🌊
ARTESIAN NORTHERN SUSSEX REGIONAL
Groundwater · Pop. 5,511
PWSID: DE0020003

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
1.4
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

8 detected 2 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA9.4 pptNo standardUnregulated
PFPeA8.3 pptNo standardUnregulated
PFHxA6.6 pptNo standard400 pptUnregulated
PFBS5.8 ppt2000 ppt100 pptBelow limit
PFHxA5.7 pptNo standard400 pptUnregulated
PFOA5.7 ppt4 ppt4 pptExceeded
PFOA4.4 ppt4 ppt4 pptExceeded
PFBS4.3 ppt2000 ppt100 pptBelow limit

Water Quality Summary

Understanding Your Water in Harbeson

Tap water quality in Harbeson, Delaware (19951) receives an overall grade of A (Excellent) with a score of 85 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 8 points above the Delaware state average of 77. The area is served by 2 water systems providing water to approximately 86,928 people, using groundwater sources. Testing has found elevated levels of Lead that warrant attention. Notably, 2 PFAS compounds exceed EPA limits — a significant concern given the persistent nature of these chemicals. The area has a clean violation record over the past 5 years — a positive indicator of consistent water quality management.

Your Score 85/100 A
vs State 8 pts above Delaware avg (77)
vs National 10 pts above national avg (75)

What a Grade A Means

A score of 85/100 means the water supply in Harbeson, DE meets or exceeds all EPA standards with minimal issues. Contaminant levels are well within safe limits, and the water system has maintained a strong compliance record. While no water supply is guaranteed perfect at the tap due to household plumbing, this is among the best-scoring areas in the country.

Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Based on EPA data, tap water in Harbeson, Delaware receives a grade of A (Excellent) with a score of 85/100. This indicates the water meets federal standards and has relatively few concerns. However, individual homes may still have localized issues such as lead from old plumbing.

ZIP code 19951 is served by 2 water systems using groundwater sources, providing water to approximately 86,928 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead was detected at 1.4 ppb in Harbeson, Delaware. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

Yes — 8 PFAS compounds were detected in water serving Harbeson, Delaware, and 2 exceed EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.

Water systems serving Harbeson, Delaware have zero violations in the last 5 years. This is a positive indicator of consistent regulatory compliance and water quality management.

Based on detected contaminants (lead, PFAS), residents in Harbeson, Delaware should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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