D
44

Poor Water Quality

Southbury, CT 06488

New Haven County · Population served: 8,228 · Data updated March 2026

Water Systems Serving This Area

🌊
SOUTHBURY TRAINING SCHOOL
Groundwater · Pop. 816
PWSID: CT1300011
🏔
HERITAGE WATER COMPANY
Surface water · Pop. 7,300
PWSID: CT1300021
🌊
OAKDALE MANOR WATER ASSOCIATION
Groundwater · Pop. 40
PWSID: CT1300071
🌊
WOODBURY PLACE CONDOMINIUM ASSN
Groundwater · Pop. 72
PWSID: CT1680071

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
6.0
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

2 detected 1 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFOA4.1 ppt4 ppt4 pptExceeded
PFBS3.2 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

490Total (5yr)
1Health-Based
467Major

Water Quality Summary

Understanding Your Water in Southbury

Tap water quality in Southbury, Connecticut (06488) receives an overall grade of D (Poor) with a score of 44 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 25 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 8,228 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. Notably, 1 PFAS compound exceeds EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 490 violations, including 1 health-based violations.

Your Score 44/100 D
vs State 25 pts below Connecticut avg (69)
vs National 31 pts below national avg (75)

What a Grade D Means

A score of 44/100 signals poor water quality in Southbury, 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.

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

Tap water in Southbury, Connecticut receives a grade of D (Poor) with a score of 44/100. 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 06488 is served by 4 water systems using surface water, groundwater sources, providing water to approximately 8,228 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 6.0 ppb in Southbury, 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 — 2 PFAS compounds were detected in water serving Southbury, Connecticut, and 1 exceeds 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 Southbury, Connecticut have received 490 violations in the last 5 years, including 1 health-based violation. 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 Southbury, 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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