Water Quality in Janesville, WI (53545)
EPA violation data for public water systems serving ZIP code 53545.
No Health-Based Violations
None of the 55 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are2 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 36% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
24,703
Population
55
Water Systems
2
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (55)
Janesville Water Utility
Beloit City Of
All resolvedMcdonalds Newville
All resolvedRock Co Airport
Heritage Hall
Rock River Heritage Park 5
Rock River Heritage Park 3
Westside Baptist Church
Rock River Heritage Park 4
Fried Onion
Elks Club Bpoe 254
Sportsman Park 1 Hp
Riverside Park South Well
Sportsman Park 2 Restroom
Gibbs Lake Co Park
Sweet Allyn Park
Carrs Supper Club
Kamp Dakota
Rock River Heritage Park 2
Stock Lumber Company
Rock Co Public Works Dept
Carver Roehl North
Lee Park South - Picnic
Magnolia Bluff 1 Top
Carver Roehl South
Magnolia Bluff 2 Bottom
Ryan Incorporated Central
Murwin Co Park
Turtle Creek Parkway
Royce Dallman Park
Happy Hollow Park
Diamond Restaurant
Indianford Park
Fifty One Motel
Redwood Motel
Mcnally & Co S C
Lakeside International
Beckman Mill Co Park
Leyden Store
Crystal Etch
Golden Retirement Housing
Johnson Tractor Inc
Paws Inn
Janesville Tractor & Equipment Inc
Oak Village Garden Center
New Horizon United Meth Church
Codys North
Lee Park North-Baseball Diamond
Gaserude Property
Beckmann Mill Historic Buildings
Countryside Motel
Ursa Logistics
Rock Co Airport Faa (85210)
Hill Crest Elementary
Rock Co Airport 1 (85201)
Contaminants Found
Annual water quality report delivery requirement.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
How Does This Compare?
Janesville (53545) has more violations than 36% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 2, 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.