Water Quality in Hancock, ME (04640)
EPA violation data for public water systems serving ZIP code 04640.
Active Health Violations
15 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 96% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
2,450
Population
19
Water Systems
90
Violations (5yr)
15
Health-Based
Location
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Water Systems Serving This Area (19)
Big Cats Catering-Tiny Tykes Daycare
All resolvedCardinal Snack Bar
Ristorante Armandos
Hancock Grammar School
All resolvedRuth & Wimpys Restaurant Inc
Crocker House Country Inn
Ironbound Restaurant & Inn
4 health-basedThe Cardinal Rest.
Chippers Restaurant & Deli
All resolvedIndian Run Estates Llc
All resolvedUnity By The Stream Llc
11 health-basedItty-Bitty Diner
All resolvedHungry Bear Restaurant
Jerry'S Lunch Bucket
Mundo'S Trailer Park
Village Store
Hancock Grocery
Hancock P. T. A.
Tidal Falls Lobster Pound
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.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jul 2025
How Does This Compare?
Hancock (04640) has more violations than 96% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 90.
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.