B
81

Good Water Quality

Dublin, OH 43017

Franklin County · Population served: 1,456,162 · Data updated March 2026

Water Systems Serving This Area

🏔
DEL-CO WATER COMPANY, INC.
Surface water · Pop. 150,000
PWSID: OH2101412
🌊
PONDEROSA ESTATES MHP
Groundwater · Pop. 216
PWSID: OH2503012
🏔
COLUMBUS PUBLIC WATER SYSTEM
Surface water · Pop. 1,305,946
PWSID: OH2504412

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
5.9
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

11 detected 2 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFHxA18.2 pptNo standard400 pptUnregulated
PFBA17.0 pptNo standard500 pptUnregulated
PFPeA14.2 pptNo standardUnregulated
PFBS11.1 ppt2000 ppt100 pptBelow limit
PFBA10.7 pptNo standard500 pptUnregulated
PFHxA8.7 pptNo standard400 pptUnregulated
PFPeA6.3 pptNo standardUnregulated
PFOA5.3 ppt4 ppt4 pptExceeded

Water Quality Summary

Understanding Your Water in Dublin

Tap water quality in Dublin, Ohio (43017) receives an overall grade of B (Good) with a score of 81 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the Ohio state average of 81. The area is served by 3 water systems providing water to approximately 1,456,162 people, using surface water and 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 81/100 B
vs State 0 pts above Ohio avg (81)
vs National 6 pts above national avg (75)

What a Grade B Means

A score of 81/100 means the water in Dublin, OH is generally good and meets EPA standards, with only minor areas of concern. There may be low levels of detectable contaminants or a small number of non-critical violations. Most residents can feel comfortable with their tap water quality, though basic filtration can provide an extra layer of protection.

Surface water: sourced from rivers, lakes, or reservoirs
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 Dublin, Ohio receives a grade of B (Good) with a score of 81/100. 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 43017 is served by 3 water systems using surface water, groundwater sources, providing water to approximately 1,456,162 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 5.9 ppb in Dublin, Ohio. 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 — 11 PFAS compounds were detected in water serving Dublin, Ohio, 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 Dublin, Ohio 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 Dublin, Ohio 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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