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WaterSafeCheck

ZIP Code 20859 Water Quality Report

Potomac, MD · Montgomery County County

Safety Score
F

Water Safety Grade

Failing — Serious compliance issues

Health Violations

0

Total Violations

0

Lead Risk

N/A

Contaminants

0

About Tap Water in ZIP Code 20859

Tap water in ZIP code 20859 (Potomac, MD) has received a failing F grade (score: 33/100) based on EPA compliance data. Woodbine Village Mobile Home Park has a significant history of water quality violations. Residents are strongly encouraged to use a certified water filter and contact their local water authority for current advisories.

Water System

Woodbine Village Mobile Home Park

EPA ID: MD0060203

Water Source

Ground Water

Population Served

150 residents

County

Montgomery County County, Maryland

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Lead Levels in ZIP 20859

EPA action level: 15 ppb | Public health goal: 0 ppb

Lead Level: 34.0 ppb — EXCEEDS EPA Action Level

The 90th percentile lead level in 20859 is 34.0 ppb, which EXCEEDS the EPA action level of 15 ppb. This is a serious concern. The water utility is legally required to notify residents, identify the source of contamination, and take corrective action. Do not give this water to infants, children, or pregnant women without first passing it through a certified NSF/ANSI 53 water filter. Contact Woodbine Village Mobile Home Park immediately for current guidance, or call the EPA Safe Drinking Water Hotline at 1-800-426-4791.
Lead Level (90th percentile)
34.00 ppb (0.034 mg/L)
Copper Level (90th percentile)

EPA action level: 1.3 mg/L

1.4 mg/L
Lead Exposure Risk Rating
Unknown
Note: Lead levels above are the 90th percentile from EPA monitoring — meaning 90% of samples were at or below this level. Even "undetected" tap water lead doesn't account for lead leaching from home plumbing. If your home was built before 1986, individual tap testing is recommended.
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Violation History

Past 5 years — EPA SDWIS data

Woodbine Village Mobile Home Park has recorded zero violations in the EPA compliance database over the past 5 years — a strong indicator of consistent regulatory compliance and careful monitoring.

Total Violations (5 yr)
0
Health-Based Violations
0
Unresolved Violations
0
Boil Water Advisories
0
Compliance Risk
Low

Regulatory compliance risk for Woodbine Village Mobile Home Park is rated Low — indicating a consistent track record of meeting EPA reporting and treatment requirements.

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Contaminants Detected

Contaminants with health-based violations on record

No health-based contaminant violations are on record for ZIP code 20859. This means EPA monitoring has not found levels of regulated contaminants exceeding the Maximum Contaminant Levels (MCLs) set under the Safe Drinking Water Act — a positive indicator of water quality compliance.

⚖ Enforcement Actions

4 enforcement actions have been issued against Woodbine Village Mobile Home Park — a high number that reflects sustained compliance struggles. Enforcement actions escalate from administrative orders to financial penalties when utilities repeatedly fail to meet safe drinking water standards.
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Water Source & Environmental Factors

Ground Water

This system draws water from underground aquifers. Groundwater is naturally filtered through soil and rock, but can still contain naturally occurring minerals like arsenic, radium, or nitrates.

Water Source Type
Ground Water
EPA Radon Zone

Highest potential

Zone 1

EPA Radon Zone 1 — highest potential for radon in indoor air. Homeowners should test their home for radon and consider mitigation if levels exceed 4 pCi/L.

🛡 What Should You Do? — ZIP 20859 Recommendations

  • 🚨 Install a certified NSF/ANSI 53 or 58 (reverse osmosis) filter immediately for drinking and cooking
  • 🚨 Do not give unfiltered water to children, pregnant women, or immunocompromised individuals
  • 🚨 Contact Woodbine Village Mobile Home Park to request the current violation status and corrective action plan
  • 🚨 Report concerns to your state environmental agency or call the EPA hotline: 1-800-426-4791
  • 🚨 Consider having your home's tap water independently tested by a certified lab

Frequently Asked Questions — ZIP 20859 Water Quality

Is tap water safe to drink in ZIP code 20859?+
Tap water in 20859 has a below-average water quality grade of F. While it is treated, there have been notable compliance issues. We strongly recommend using a certified NSF/ANSI 53 water filter for drinking and cooking, especially for vulnerable populations.
What is the lead level in 20859 tap water?+
The 90th percentile lead level in 20859 is 34.0 ppb (parts per billion). The EPA action level is 15 ppb. This exceeds the EPA action level — use a certified lead-reducing water filter.
Who provides tap water to 20859?+
Tap water in ZIP code 20859 is provided by Woodbine Village Mobile Home Park (EPA ID: MD0060203). This system serves approximately 150 residents. You can contact them directly for Consumer Confidence Reports, current advisories, and billing information.
What is the water source for 20859?+
ZIP code 20859 is served by ground water. Groundwater systems draw from underground aquifers. While naturally filtered, groundwater can still contain naturally occurring contaminants such as arsenic, radium, or nitrates at elevated levels in some regions.
Does 20859 have any active water quality violations?+
No active violations are on record for ZIP code 20859. EPA data shows this water system is currently in compliance with Safe Drinking Water Act standards.
How do I get a copy of my water quality report for 20859?+
Your water utility — Woodbine Village Mobile Home Park — is required by law to send you an annual Consumer Confidence Report (CCR) by July 1 each year. You can also request it directly from the utility or find it online by searching "Woodbine Village Mobile Home Park Consumer Confidence Report." The EPA's ECHO database also has historical compliance data.
What water filter should I use in 20859?+
The right filter depends on what contaminants are present. For lead, look for a filter certified to NSF/ANSI Standard 53. For chlorine byproducts (like THMs), NSF/ANSI 42 filters work well. For a broad range of contaminants including PFAS, look for NSF/ANSI 58 (reverse osmosis) systems. For ZIP code 20859, with a clean compliance record, a standard carbon block filter meeting NSF/ANSI 42 is a good choice for taste and as a precaution.
Is 20859 tap water safe for babies and infants?+
Infants are especially vulnerable to lead, nitrates, and microbial contaminants in drinking water. Given the detected lead level of 34.0 ppb in 20859, we recommend using a certified NSF/ANSI 53 water filter or certified bottled water for preparing infant formula. Always consult your pediatrician for guidance specific to your child's health.

Data Sources & Methodology

Water quality data for ZIP code 20859 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by Woodbine Village Mobile Home Park. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →