D
53

Poor Water Quality

Miller Place, NY 11764

Suffolk County · Population served: 1,100,050 · Data updated March 2026

Water Systems Serving This Area

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SUFFOLK COUNTY WATER AUTHORITY
Groundwater · Pop. 1,100,000
PWSID: NY5110526
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NEWTOWN HILL TRAILER PARK
Groundwater · Pop. 50
PWSID: PA2590006

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
2.3
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

10 detected 3 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFHxA43.5 pptNo standard400 pptUnregulated
PFPeA39.4 pptNo standardUnregulated
6:2 FTS23.6 pptNo standardUnregulated
PFOS17.4 ppt4 ppt4 pptExceeded
PFBA12.6 pptNo standard500 pptUnregulated
PFHxS10.8 ppt10 ppt10 pptExceeded
PFHpA9.6 pptNo standardUnregulated
PFOA6.5 ppt4 ppt4 pptExceeded

Violation History (Last 5 Years)

29Total (5yr)
0Health-Based
19Major

Water Quality Summary

Understanding Your Water in Miller Place

Tap water quality in Miller Place, New York (11764) receives an overall grade of D (Poor) with a score of 53 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 22 points below the New York state average of 75. Compared to the national average (75), this area scores significantly lower. The area is served by 2 water systems providing water to approximately 1,100,050 people, using groundwater sources. Testing has found elevated levels of Lead that warrant attention. Notably, 3 PFAS compounds exceed EPA limits — a significant concern given the persistent nature of these chemicals. The area has 29 violations over the past 5 years, though none were classified as health-based.

Your Score 53/100 D
vs State 22 pts below New York avg (75)
vs National 22 pts below national avg (75)

What a Grade D Means

A score of 53/100 signals poor water quality in Miller Place, NY. 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

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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 Miller Place, New York receives a grade of D (Poor) with a score of 53/100. 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 11764 is served by 2 water systems using groundwater sources, providing water to approximately 1,100,050 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 2.3 ppb in Miller Place, New York. 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 — 10 PFAS compounds were detected in water serving Miller Place, New York, and 3 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 Miller Place, New York have received 29 violations in the last 5 years. 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 Miller Place, New York 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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