Southampton, NY: 2 Violations — 88/100 (2026)
2 ZIP codes · 3 water systems · Updated 2026-06-03
The water systems supplying Southampton show a track record of above-average compliance with federal standards — consistently among the better performers in NY.
How Southampton Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Southampton Water
- Your city's water systems recorded 2 violations in the past 5 years.
- Average lead level: 0.0013 mg/L.
- Estimated remediation: $1,500 per household.
- CDC health risk index: 11.13.
Who Supplies Your Water in Southampton
Structurally, Southampton, NY's water supply is divided. Federal data identifies 3 water systems in the area, with 3 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.
Overview
We track water quality and home safety data for 2 ZIP codes in Southampton, New York (population ~14,263), covering 3 community water systems serving approximately 1,114,550 people region-wide.
2 of 2 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Southampton: A (88/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Southampton water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0013 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 2 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 11968 | B | 1 | 0 | Hampton Bays Water District |
| 11969 | A | 1 | 0 | Hampton Bays Water District |
All ZIP Codes in Southampton
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
Updated daily.
Health Outcomes in Southampton
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Southampton Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Southampton Homeowners
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Southampton is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in Southampton are relatively low compared to home values. The $1,000–$2,200 estimated range is a small fraction of median property value. Home values are 223% above the New York average.
Lead Exposure Risk for Children in Southampton
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Southampton appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Southampton
Unlike communities where NFIP data shows minimal flood history, Southampton's record documents 764 claims and 100% of ZIP codes inside FEMA flood zones — a combination that moves flood-related water quality risk from the background into the foreground of any complete local water assessment. Flooding can overwhelm treatment capacity, contaminate wells, and trigger distribution backflow; at this level of exposure, those mechanisms have likely been activated during significant flood events.
Southampton has a significant flood history with 764 FEMA flood insurance claims on record, averaging $12,612 per claim. With 100% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,500</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Southampton, NY