D
52

Poor Water Quality

Berlin, MD 21811

Worcester County · Population served: 24,236 · Data updated March 2026

Water Systems Serving This Area

🌊
BEST RENTAL HOUSING, INC.
Groundwater · Pop. 68
PWSID: MD0220012
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TOWN OF BERLIN
Groundwater · Pop. 4,500
PWSID: MD0230001
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NEWARK
Groundwater · Pop. 325
PWSID: MD0230002
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OCEAN PINES
Groundwater · Pop. 11,890
PWSID: MD0230005
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ST. MARTINS BY THE BAY
Groundwater · Pop. 120
PWSID: MD0230008

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
6.0
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

6 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBA7.8 pptNo standard500 pptUnregulated
PFPeA6.8 pptNo standardUnregulated
PFHxS4.9 ppt10 ppt10 pptBelow limit
PFHxA4.8 pptNo standard400 pptUnregulated
PFBS3.7 ppt2000 ppt100 pptBelow limit
PFHpA3.5 pptNo standardUnregulated

Violation History (Last 5 Years)

18Total (5yr)
4Health-Based
8Major

Water Quality Summary

Understanding Your Water in Berlin

Tap water quality in Berlin, Maryland (21811) receives an overall grade of D (Poor) with a score of 52 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 25 points below the Maryland state average of 77. Compared to the national average (75), this area scores significantly lower. The area is served by 12 water systems providing water to approximately 24,236 people, using groundwater sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 6 compounds, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 18 violations, including 4 health-based violations.

Your Score 52/100 D
vs State 25 pts below Maryland avg (77)
vs National 23 pts below national avg (75)

What a Grade D Means

A score of 52/100 signals poor water quality in Berlin, MD. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Berlin, Maryland receives a grade of D (Poor) with a score of 52/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 21811 is served by 12 water systems using groundwater sources, providing water to approximately 24,236 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead was detected at 6.0 ppb in Berlin, Maryland. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

6 PFAS compounds were detected in water serving Berlin, Maryland, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving Berlin, Maryland have received 18 violations in the last 5 years, including 4 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in Berlin, Maryland should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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