Water Quality in Portsmouth, NH (03801)
EPA violation data for public water systems serving ZIP code 03801.
Past Health-Based Violations
1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 17 monitoring/reporting violations.
More violations than 77% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
23,484
Population
23
Water Systems
18
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (23)
Portsmouth Water Works
Pease Trade Port
Great Bay Community College
New Castle Water Works
All resolvedBow Irving
Star Island Water Sys
Stratham Irving/Portsmouth Ave
Hemlock Haven
1 health-basedGeorge Calef Fine Foods
Piper Meadows Private Communty
All resolvedCedar Creek
All resolvedClearchoicemd
Gilford Airport Plaza
Muddy River Smokehouse
Four Seasons Mobile Home Park
Smokey Goodness Pub And Grill
Jackies
All resolvedTonys Diner
High Pastures At Black Mtn
Harbor Square Shopping Center
All resolvedBlueberry Village Condos
Shoals Marine Lab - Well #2
Plaza 125
All resolvedContaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2024
How Does This Compare?
Portsmouth (03801) has more violations than 77% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 18.
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.
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.