WATER QUALITY MD

Water Quality in White Marsh, MD: No Violations — Grade C

Grade C · Score 55/100 · 1 water system · Updated 2026-05-03

White Marsh's water has moderate compliance issues. Residents in affected areas should consider filtration.

Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03

Federal EPA data for White Marsh, MD shows no violations on record — 1 system, all clear.

Water Grade

Total Violations

Water Systems

ZIPs with Violations

ZIP Codes Monitored

Water Quality by ZIP Code in White Marsh

Water quality varies across White Marsh's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.

ZIP Code	Grade	Score	Violations	Health
21162	C	55	0	0	View report →

Water Quality Overview

White Marsh, Maryland receives a water quality grade of C with an overall score of 55 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).

No EPA violations have been recorded for the 1 water system serving White Marsh. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.

What Grade C Means

A grade of C indicates moderate compliance issues. White Marsh's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.

Lead Levels

Lead testing data for White Marsh is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.

With 46% of homes built before 1986, White Marsh has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.

Radon Risk

White Marsh is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.

Water Systems Serving White Marsh

White Marsh is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 468 people across 1 ZIP codes.

Each water system is identified by a Public Water System ID (PWSID) and is required to:

Test for over 90 regulated contaminants on a regular schedule
Report results to the EPA and state regulators
Issue an annual Consumer Confidence Report (CCR) to all customers
Take corrective action when violations occur

How to Check Your Water in White Marsh

Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts

White Marsh vs. Nearby Maryland Cities

How White Marsh's water quality compares to similar cities in Maryland:

City	Grade	Systems	Population
White Marsh	C	1	468
Baldwin	D	1	468
Fork	C	1	468
Hydes	D	1	468

Common Questions About White Marsh Water

These are the most common questions residents search for about water quality in White Marsh, Maryland:

Is White Marsh water hard or soft? Water hardness varies by source. White Marsh's 1 water system uses a single source. Check your ZIP code report for specific hardness data.

Can I drink White Marsh tap water? White Marsh's water receives a grade of C (55/100). No health-based violations have been recorded, but home testing is always recommended.

What is the best water filter for White Marsh? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.

White Marsh vs. Maryland Average

Understanding how White Marsh compares to the broader Maryland average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.

To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within White Marsh.

ZIP Codes in White Marsh

White Marsh spans 1 ZIP code. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.

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
Enforcement: EPA ECHO database
Filter recommendations: NSF/ANSI certified products

Updated daily.

Frequently Asked Questions

Is White Marsh tap water safe to drink?

White Marsh's water receives a grade of C (55/100). Some areas have recorded violations — residents in affected ZIP codes may want to consider water testing.

What contaminants are found in White Marsh water?

White Marsh water systems have zero recorded violations. While this is excellent, the EPA recommends annual testing as contaminants can enter your water through home plumbing.

How many water violations does White Marsh have?

White Marsh has 0 total EPA violations across 1 water system. 0 of 1 ZIP codes have at least one violation.

How many water systems serve White Marsh?

White Marsh is served by 1 public water system supplying drinking water across 1 ZIP codes. Water quality can vary between systems — check your specific ZIP code for localized data.

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