Bethlehem, MD Water Safety: 66/100 (2026)
1 ZIP code · 1 water system · Updated 2026-07-16
ZipCheckup grade for Bethlehem: C.
A mixed picture - some signals here are worth your attention.
Drilling into federal monitoring figures for Bethlehem in MD, the pattern is middle-of-the-road - some utilities have documented MCL exceedances or treatment technique violations in recent years, while others have operated without a single flag, making the city's grade a genuine average rather than a rounded-down high.
How Bethlehem Compares
Data: EPA SDWIS Last verified: 2026-07-16
Who Supplies Your Water in Bethlehem
Supply infrastructure in Bethlehem, MD runs through a single dominant provider - the main entity among 1 tracked system through which rate decisions, infrastructure work, and federal compliance are managed.
- C
Overview
We track water quality and home safety data for 1 ZIP code in Bethlehem, Maryland, covering 1 community water system serving approximately 750 people.
No EPA violations are recorded for the tracked water systems in Bethlehem as of the latest reporting period.
Home Safety Score
Average Home Safety Score for Bethlehem: C (66/100)
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
Bethlehem water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Bethlehem
- 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 |
|---|---|---|---|
| 21609 | C | TOWN OF PRESTON | 750 |
All ZIP Codes in Bethlehem
- 21609 [C]
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 Bethlehem
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
What You Can Do in Bethlehem
- Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Bethlehem, MD