Water Quality in Sister Bay, WI (54234)
EPA violation data for public water systems serving ZIP code 54234.
No Health-Based Violations
None of the 27 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are11 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 68% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
2,158
Population
27
Water Systems
11
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (27)
Sister Bay Waterworks
Charles S Gass
Associated Bank Sister Bay Branch
Camp Door
Sister Bay Moravian Ch
All resolvedKlauds Kitchen
All resolvedInn At Little Sister Hill
All resolvedThyme Restaurant
Door Co Bakery
All resolvedSister Bay Village Beach
Patio Llc And One Star Burgers Llc
Dovetail Acres Cmpgd
All resolvedLiberty Grove Fire Station
All resolvedLiberty Grove Town Hall
Aqualand Campground
M K Fletcher Jr
Gills Rock Park
All resolvedSkyway Drive In Theater
Dovetail Trading Restaurant
All resolvedTwelve Eleven
All resolvedDovetail Trading
Caseys Inn Tavern
Little Sister Resort Unit 15
Century Farm Motel
Little Sister Resort Dining
Ellison Bay Community Ctr
All resolvedFirst National Bank
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2023
How Does This Compare?
Sister Bay (54234) has more violations than 68% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 11, 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.