D
40

Poor Water Quality

Newtown, CT 06470

Fairfield County · Population served: 9,326 · Data updated March 2026

Water Systems Serving This Area

🌊
AQUARION-NEWTOWN REGIONAL
Groundwater · Pop. 6,054
PWSID: CT0970011
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FAIRFIELD HILLS
Groundwater · Pop. 2,610
PWSID: CT0970021
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55 SUGAR STREET
Groundwater · Pop. 158
PWSID: CT0970071
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STONE BRIDGE CENTER FOR HEALTH & REHAB
Groundwater · Pop. 504
PWSID: CT0971011

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
6.0
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

8 detected 2 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFOA15.9 ppt4 ppt4 pptExceeded
PFOS12.7 ppt4 ppt4 pptExceeded
PFPeA8.4 pptNo standardUnregulated
PFHxA7.6 pptNo standard400 pptUnregulated
PFBS7.3 ppt2000 ppt100 pptBelow limit
PFBA5.8 pptNo standard500 pptUnregulated
PFHpA4.9 pptNo standardUnregulated
PFHxS4.9 ppt10 ppt10 pptBelow limit

Violation History (Last 5 Years)

177Total (5yr)
2Health-Based
123Major

Water Quality Summary

Understanding Your Water in Newtown

Tap water quality in Newtown, Connecticut (06470) receives an overall grade of D (Poor) with a score of 40 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 29 points below the Connecticut state average of 69. Compared to the national average (75), this area scores significantly lower. The area is served by 4 water systems providing water to approximately 9,326 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. Over the past 5 years, water systems here have accumulated 177 violations, including 2 health-based violations.

Your Score 40/100 D
vs State 29 pts below Connecticut avg (69)
vs National 35 pts below national avg (75)

What a Grade D Means

A score of 40/100 signals poor water quality in Newtown, CT. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

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

Tap water in Newtown, Connecticut receives a grade of D (Poor) with a score of 40/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 06470 is served by 4 water systems using groundwater sources, providing water to approximately 9,326 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 6.0 ppb in Newtown, Connecticut. 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 Newtown, Connecticut, 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 Newtown, Connecticut have received 177 violations in the last 5 years, including 2 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in Newtown, Connecticut 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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