Water Quality in Potomac, MD (20859)
EPA violation data for public water systems serving ZIP code 20859.
No Health-Based Violations
None of the 5 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are28 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 84% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5
Water Systems
28
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (5)
The Oaks Of Thonotosassa Mhp
All resolvedApplegate Mobile Home Community
All resolvedSilver Hill Manuf Home Comm. (Sc4060019)
Crystal Acres Mhp
All resolvedRiver Oaks Rv Resort
All resolvedContaminants Found
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2024
How Does This Compare?
Potomac (20859) has more violations than 84% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 28, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.