Water Quality in New Suffolk, NY: No Violations - Grade C
Grade C · Score 65/100 · 2 water systems · Updated 2026-07-18
New Suffolk's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-07-18
New Suffolk, NY has zero reported violations - 2 water systems, all compliant.
Water Quality by ZIP Code in New Suffolk
New Suffolk is covered by a single ZIP code, so one water-quality profile applies citywide. See the contaminant data below.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 11956 | C | 65 | 0 | 0 | View report → |
Water Quality Overview
New Suffolk, New York receives a water quality grade of C with an overall score of 65 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
No EPA violations have been recorded for the 2 water systems serving New Suffolk. 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 C Means
A grade of C indicates moderate compliance issues. New Suffolk's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
Lead testing data for New Suffolk is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
With 89% of homes built before 1986, New Suffolk 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.
Water Systems Serving New Suffolk
New Suffolk is served by 2 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 293 people across 1 ZIP code.
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
The EPA has taken 10 enforcement actions against water systems serving New Suffolk. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in New Suffolk
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
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving New Suffolk. Recent actions:
| Date | Action Type |
|---|---|
| 2025-10-27 | State Filed Judgment |
| 2025-10-27 | State Informal Enforcement |
| 2025-04-01 | State Informal Enforcement |
| 2025-04-01 | State Filed Judgment |
| 2024-11-19 | State Informal Enforcement |
| 2024-11-19 | State Filed Judgment |
| 2023-05-31 | State Order Extension |
| 2022-10-28 | State Filed Judgment |
| 2022-10-28 | State Informal Enforcement |
| 2021-05-31 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-10-27.
New Suffolk vs. Nearby New York Cities
How New Suffolk's water quality compares to similar cities in New York:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| New Suffolk | C | 0 | 2 | 293 |
| Keene Valley | C | 0 | 1 | 293 |
| Chautauqua | C | 11 | 6 | 292 |
| Clemons | D | 0 | 1 | 292 |
Common Questions About New Suffolk Water
These are the most common questions residents search for about water quality in New Suffolk, New York:
Is New Suffolk water hard or soft? Water hardness varies by source. New Suffolk's 2 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink New Suffolk tap water? New Suffolk's water receives a grade of C (65/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for New Suffolk? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
New Suffolk vs. New York Average
Understanding how New Suffolk 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 New Suffolk.
ZIP Codes in New Suffolk
New Suffolk 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.