C
69

US Water Score: C

Queenstown, MD 21658

Queen Annes County · Population served: 705 · Data updated July 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

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TOWN OF QUEENSTOWN
Groundwater · Pop. 705
PWSID: MD0170003

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
0.0
15 ppb 1 ppb Passed

Violation History (Last 5 Years)

9Total (5yr)
0Health-Based
7Major

Water Quality Summary

Understanding Your Water in Queenstown

Tap water quality in Queenstown, Maryland (21658) receives an overall grade of C (Mixed record-based signals) with a score of 69 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 11 points below the Maryland state average of 80. The area is served by Town Of Queenstown, a groundwater system providing water to approximately 705 people.

Your Score 69/100 C
vs State 11 pts below Maryland avg (80)
vs National 6 pts below national avg (75)

What a Grade C Means

A score of 69/100 indicates fair performance in the US Water Score model for Queenstown, MD. The records show noteworthy concerns, such as elevated contaminant levels, violation history, or both. Review the detailed contaminant data and official utility reports before making decisions.

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

Queenstown, Maryland receives an internal US Water Score grade of C (Fair) with a score of 69/100. Our model found some system-level concerns, such as violation history or elevated contaminant levels. Review your utility's Consumer Confidence Report and consult a qualified professional for household-specific health questions.

ZIP code 21658 is served by 1 water system using groundwater sources, providing water to approximately 705 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 levels in Queenstown, Maryland are 0.0 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.

Water systems serving Queenstown, Maryland were not tested for PFAS under the EPA's UCMR5 monitoring program. This does not mean PFAS are absent — it means no data is currently available. UCMR5 testing covered approximately 10,000 of the largest water systems nationwide. You can request PFAS testing from your water utility or use a certified home test kit.

Water systems serving Queenstown, Maryland have received 9 violations in the last 5 years. 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.

Water in Queenstown, Maryland shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.

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