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EPA SDWIS City OverviewWater Testing & Safety Guide

Sunderland, MD Water Quality Testing & Safety Report

EPA compliance records, water testing guidelines, and hardness metrics for all 1 ZIP code in Sunderland, Maryland

Quick EPA Verified Summary

Is Tap Water Safe to Drink in Sunderland, MD?

Tap water in Sunderland, MD receives an EPA Safety Grade of C (65/100) due to 1 health-based violation(s) and elevated lead risk. While treated by local utilities, residents are advised to test tap water and use an NSF/ANSI 53 certified filter for drinking and cooking.

Average Score

65/100

Health Violations

1

Water Hardness

Hard

160 mg/L (9.4 GPG)

High Lead Risk

1

of 1 ZIP codes

C

About Tap Water in Sunderland, MD

Drinking water in Sunderland, MD receives an average water quality grade of C (score: 65/100) across its 1 ZIP code. Safe Drinking Water Act compliance monitoring is managed by local utilities including Town of Chesapeake Beach.

⚠ Lead Risk Alert: Some ZIP codes in Sunderland are rated High or Very High for lead exposure risk based on EPA data. Search your specific ZIP code for a detailed lead level report.

Water Quality Testing in Sunderland, MD

Tap Water & Well Water Testing Recommendations

Testing your drinking water in Sunderland confirms whether contaminants like lead, nitrates, bacteria, and PFAS are entering your home. While municipal utilities test water before distribution, private plumbing and private well systems require homeowner testing.

Tap Water Testing Checklist

  • 1.Identify your plumbing age: Homes built before 1986 in Sunderland may have lead solder or lead service lines.
  • 2.Request your utility's latest Consumer Confidence Report (CCR) for annual municipal baseline data.
  • 3.Use an EPA-certified laboratory or state-certified test kit for precision lead and PFAS detection (standard DIY strips cannot reliably measure trace heavy metals).
  • 4.Collect a "first draw" sample: Test water that has sat motionless in pipes for at least 6 hours to check for plumbing corrosion.

Private Well Water Testing Checklist

  • •Private wells in MD are not monitored by the EPA or Maryland Department of the Environment — testing is 100% the homeowner's responsibility.
  • •Annual Test: Screen for Total Coliform Bacteria, E. coli, Nitrates/Nitrites, and pH every spring.
  • •Comprehensive Test (Every 3-5 Years): Test for heavy metals (Lead, Arsenic, Uranium), Volatile Organic Compounds (VOCs), and Hardness.
  • •Post-Disruption Testing: Immediately test well water following heavy floods, local construction, agricultural runoff, or sudden taste/odor changes.

Critical Water Testing Parameters for Sunderland Residents

ParameterHealth ReasonEPA Limit / Standard
Lead (Pb)Plumbing corrosion; dangerous neurotoxin for children15 ppb (Action Level) / 0 ppb Goal
Total Coliform & E. ColiBacterial contamination from sewage or surface runoff0 mg/L (Zero Tolerance)
Nitrates / NitritesFertilizer and septic tank seepage; causes blue baby syndrome10 mg/L (MCL)
Water Hardness (Ca & Mg)Affects appliance lifespan, scale buildup, and skin hydrationHard (>120 mg/L)
PFAS ("Forever Chemicals")Industrial non-stick chemicals linked to metabolic and immune issues4.0 ppt (EPA 2024 Rule)
State Regulatory Oversight: Environmental standards and certified water lab registries in MD are maintained by the Maryland Department of the Environment.

Health-Based Contaminant Violations in Sunderland

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Sunderland water systems over the past 5 years.

Stage 2 DBP Rule

Note: The presence of a past violation does not necessarily mean current water is unsafe. Utilities are required to take corrective action. Review your Consumer Confidence Report for the latest status.

Water Quality by ZIP Code — Sunderland, MD

Showing 1 of 1 monitored ZIP code in Sunderland

C
20689

Sunderland, MD

Score: 65/1001 violation

All Sunderland, MD ZIP Code Reports (1 Total)

20689

Nearby Cities Water Quality & Testing in Maryland

Compare tap water safety, EPA test scores, and water hardness across neighboring cities in Maryland:

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Aberdeen, MD1 ZIP code
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Abingdon, MD1 ZIP code
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Adamstown, MD1 ZIP code
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Accokeek, MD1 ZIP code
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Allen, MD1 ZIP code
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Frequently Asked Questions — Sunderland Water Quality & Testing

Is tap water safe to drink in Sunderland, MD?+
Tap water in Sunderland has a grade of C, indicating compliance concerns in recent years. Families with young children or pregnant women should consider using a certified NSF/ANSI 53 water filter for drinking and cooking.
How do I test water quality in Sunderland, MD?+
To test water quality in Sunderland, you can order an EPA-compliant drinking water test kit or submit samples to a state-certified environmental testing laboratory in MD. Testing is especially recommended for homes built before 1986 (to check for lead in plumbing) and for properties with private well systems.
Should I test private well water in Sunderland?+
Yes. Unlike municipal tap water, private wells in Sunderland, MD are not monitored or regulated by the EPA or local utilities. Private well owners are responsible for testing their water annually for coliform bacteria and nitrates, and every 3 to 5 years for heavy metals (lead, arsenic) and volatile organic compounds.
How hard is the tap water in Sunderland?+
Tap water in Sunderland is classified as Hard with an estimated average hardness of 160 mg/L (9.4 GPG). Homeowners may want to consider a water softener to prevent scale buildup in appliances.
What is the water quality score for Sunderland?+
The average water quality score across 1 ZIP code in Sunderland, MD is 65/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Sunderland have lead in its tap water?+
1 out of 1 ZIP codes in Sunderland are rated High or Very High for lead exposure risk. Older homes built before 1986 may have lead service lines or plumbing fixtures. Residents should run their tap for 30 seconds before use and consider a certified NSF/ANSI 53 lead filter.
Where does Sunderland's tap water come from?+
Tap water in Sunderland, MD primarily comes from ground water. Groundwater systems pump water from underground aquifers, which is naturally filtered through soil and rock but can still contain naturally occurring contaminants.

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