C
64

Fair Water Quality

Port Washington, NY 11050

Nassau County · Population served: 36,900 · Data updated March 2026

Water Systems Serving This Area

🌊
SANDS POINT (V)
Groundwater · Pop. 2,900
PWSID: NY2902852
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PORT WASHINGTON WD
Groundwater · Pop. 34,000
PWSID: NY2912267

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
5.0
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

6 detected 2 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA6.9 pptNo standardUnregulated
6:2 FTS6.5 pptNo standardUnregulated
PFOA5.3 ppt4 ppt4 pptExceeded
PFOS4.7 ppt4 ppt4 pptExceeded
PFNA4.2 ppt10 ppt10 pptBelow limit
PFHxA3.6 pptNo standard400 pptUnregulated

Violation History (Last 5 Years)

8Total (5yr)
8Health-Based
0Major

Water Quality Summary

Understanding Your Water in Port Washington

Tap water quality in Port Washington, New York (11050) receives an overall grade of C (Fair) with a score of 64 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 11 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 36,900 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 8 violations, including 8 health-based violations.

Your Score 64/100 C
vs State 11 pts below New York avg (75)
vs National 11 pts below national avg (75)

What a Grade C Means

A score of 64/100 indicates fair water quality in Port Washington, NY. While the water meets minimum federal standards, there are noteworthy concerns — either elevated contaminant levels approaching regulatory limits, a moderate violation history, or both. Residents may want to review specific contaminant data and consider targeted filtration, especially for sensitive groups like children and pregnant women.

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 Port Washington, New York receives a grade of C (Fair) with a score of 64/100. While it generally meets minimum federal standards, there are some areas of concern including violation history or elevated contaminant levels. Sensitive populations (children, pregnant women, elderly) may want to consider additional filtration.

ZIP code 11050 is served by 2 water systems using groundwater sources, providing water to approximately 36,900 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 5.0 ppb in Port Washington, 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 — 6 PFAS compounds were detected in water serving Port Washington, New York, 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 Port Washington, New York have received 8 violations in the last 5 years, including 8 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 Port Washington, 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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