Water Quality in Madison, WI (53523)
EPA violation data for public water systems serving ZIP code 53523.
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 67% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,074
Population
48
Water Systems
10
Violations (5yr)
3
Health-Based
Location
Loading map...
Water Systems Serving This Area (48)
Madison Water Utility
1 health-basedWatertown Waterworks
All resolvedCambridge Water & Sewer Utility
1 health-basedGrace Lutheran Church
Lake Ripley Country Club - Clubhouse
Lake Ripley Family Restaurant
East Koshkonong Lutheran
Lake Ripley Lanes
Rockdale Bar & Grill
1 health-basedLake Ripley Country Club - Course System
Ripley Park Bath House
Rockdale Lutheran Church
Utica Bar
Herings Lake Ripley Inn
London Depot
E & E Lomperski
Kens Country Store
Valley View Recreation Club
Bluff View Mobile Home Park
Joe & Anns Tavern
Alpine Village Condos - East System
Mink Farm Tavern
London Moravian Church
Koshkonong Trails Charter School
All resolvedLondon Community Center
Willerup Bible Camp Of Lake Ripley Inst
Valley View Recreation Club - Campsites
Ripleys Motel
London Service Center
Gerstner Residence
Barneys Utica Store
Ice House Apartments
Arbor Dell Inn
Joyces Lake Ripley Resort 1
Willow Beach
Joyces Lake Ripley Resort 2
Schroeders Countryside Rest
Bothum Warehouse
D M T Storage Inc
Ripley Park Tennis
Hickory Lane Farm
Viking Enterprises
Landini Home
Hebl Cottages
Norville Last Resort
Faith Ev Lutheran Church
Alpine Village Condos - West System
Spa, The
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Sep 2025
How Does This Compare?
Madison (53523) has more violations than 67% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 10.
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.