Water Quality in East Setauket, NY: No Violations — Grade D
Grade D · Score 40/100 · 1 water system · Updated 2026-05-03
East Setauket's water has significant violations. Water testing and filtration are recommended.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Check EPA compliance data for East Setauket, NY and you find zero violations across 1 water system — no MCL exceedances, no monitoring schedule failures, no public health notices, no enforcement orders, and no outstanding compliance actions of any kind documented in the federal Safe Drinking Water Information System.
Water Quality by ZIP Code in East Setauket
Water quality varies across East Setauket's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 11733 | D | 40 | 0 | 0 | View report → |
Water Quality Overview
East Setauket, New York receives a water quality grade of D with an overall score of 40 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
No EPA violations have been recorded for the 1 water system serving East Setauket. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.
What Grade D Means
A grade of D indicates significant compliance issues. East Setauket's water systems have accumulated violations that suggest ongoing water quality challenges. Residents should check their specific ZIP code report and consider water testing or filtration.
Lead Levels
Lead testing data for East Setauket is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
With 76% of homes built before 1986, East Setauket has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Radon Risk
East Setauket is in EPA Radon Zone 1 (High risk). The EPA recommends all homes in Zone 1 areas be tested for radon. Radon is the second leading cause of lung cancer after smoking.
Water Systems Serving East Setauket
East Setauket is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 150 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
How to Check Your Water in East Setauket
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
East Setauket vs. Nearby New York Cities
How East Setauket's water quality compares to similar cities in New York:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| East Setauket | D | 0 | 1 | 150 |
| Centereach | D | 0 | 1 | 150 |
| East Branch | D | 0 | 1 | 150 |
| Elizaville | D | 0 | 1 | 150 |
Common Questions About East Setauket Water
These are the most common questions residents search for about water quality in East Setauket, New York:
Is East Setauket water hard or soft? Water hardness varies by source. East Setauket's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink East Setauket tap water? East Setauket's water receives a grade of D (40/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for East Setauket? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
East Setauket vs. New York Average
Understanding how East Setauket compares to the broader New York average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within East Setauket.
ZIP Codes in East Setauket
East Setauket spans 1 ZIP code. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.