Water Quality in Hamilton, OH (45011)
EPA violation data for public water systems serving ZIP code 45011.
No Health-Based Violations
None of the 42 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are9 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 65% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
75,864
Population
42
Water Systems
9
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (42)
Butler Co. Water District 2 Pws
All resolvedHamilton Public Water System
All resolvedHamilton/South Water Plant
Middletown City Pws
Fairfield City Pws
Southwest Regional Water District
Oxford City Pws
Swr Water District South Plant Pws
New Miami Village Pws
Butler County Port Union Pws
Butler County Queen Acres Pws
Butler County Sharon Park Pws
Mgr,Lesourdsville Mobile Homes
Calvary Christian Center
Crouse Mobile Home Park & Sales, Llc
Mgr,Princeton Road Trailer Pk.
Kingdom Hall Jehovah'S Witness-Hamilton
Don-A-Del Mobile Home Park
Jackson Road Mobile Home Park
Thornton Oil Station
Advanced Drainage Systems- Butler
Airway Mobile Home Park
Trail-Otel Mobile Home Park
Al Couch Super Market
Mgr,Camargo Mobile Home Park
Bonanza Dairy Bar
Country Fresh Restaurant
Twin Run Golf Cource Conc
Hornungs Meats
Millis Transfer Inc Pws
Jack'S Williamsdale Inn
Alpine Cheese Chalet
The Total Look
Twin Hill Fishing Lake
Mgr,Lake Comfort
Log House Tavern
Bp Oil Station #I2326
Edgewood Mobile Home Park
Graystone Motel
Lake Brenda
Izaak Walton League
Wrights Del Rio Carry Out
Contaminants Found
Annual water quality report delivery requirement.
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Hamilton (45011) has more violations than 65% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 9, 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.