Nassau, DE Water Safety: 88/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Tap water monitoring data for Nassau shows a consistently clean picture in DE — few violations on record, compliance well above the median.
How Nassau Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Nassau Water
- Estimated remediation: $600 per household.
- CDC health risk index: 14.77 — above typical levels.
Who Supplies Your Water in Nassau
For most households in Nassau, DE, tap water comes from one provider — the utility that controls the local distribution system out of 1 tracked in federal record.
Overview
We track water quality and home safety data for 1 ZIP code in Nassau, Delaware, covering 1 community water system serving approximately 66 people.
No EPA violations recorded across any ZIP codes in Nassau — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Nassau: 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
Nassau water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Nassau
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 19969 | A | Eds Mobile Home Park | 66 |
All ZIP Codes in Nassau
- 19969 [A]
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 Nassau
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
Deep Dive Reports
Detailed analysis for Nassau, DE