Water Quality in Portland, ME (04021)
EPA violation data for public water systems serving ZIP code 04021.
No Health-Based Violations
None of the 13 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are23 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 80% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
6,990
Population
13
Water Systems
23
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (13)
Portland Water District-Greater
All resolvedCumberland Race-A-Way Rest.
Wander At Longwoods
Cumberland Elem Scl C/O Msad51
Brookside Mhp
Bull Moose Outdoor Adventures
Walnut Hill Hts Comm Water Ass
Range Pond Apts Poland Spring
The Willow School
Helena R Sutherland
Burgess Market
All Pro Sports Center
All resolvedCumberland Twin Brooks Rec Fields
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Portland (04021) has more violations than 80% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 23, 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.