Water Quality in Portland, ME (04101)
EPA violation data for public water systems serving ZIP code 04101.
Active Health Violations
3 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 91% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
18,431
Population
27
Water Systems
50
Violations (5yr)
3
Health-Based
Location
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Water Systems Serving This Area (27)
Portland Water District-Greater
All resolvedChebeague Island Inn Llc
1 health-basedUncommon Rangeley Llc
All resolvedMedomak Mobile Home Court
Pineland Forest Mobile Home Pk
Anson St. Apartments
Meadows At Grapevine Run
Ethel Walton Housing
Deer Crossing Apartments
39 Limerick Road Llc
All resolvedParish House Of Bar Mills
Harmon Pines Development
2 health-basedSandy Creek Housing
Applewood
All resolvedCedar Haven Mobile Home Pk #4
Cedar Haven Mobile Home Pk #3
Cedar Haven Mobile Home Pk #5
Emery Commons
Crescent Lake Cottages
Elwell Farms
Brook Hollow
All resolvedDexter Satco - Dexter
Us Border Sta - Easton
Ducktrap Retreat
Milbridge Housing Corp
Rockcraft Lodge
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
A naturally occurring element that can cause cancer and other health effects at high levels.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
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 (04101) has more violations than 91% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 50.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.