Water Quality in 45011 — Hamilton, OH
EPA data for BUTLER CO. WATER DISTRICT 2 PWS
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 45011 in Hamilton, Ohio is served by BUTLER CO. WATER DISTRICT 2 PWS (EPA ID: OH0900303). This system provides water to approximately 116,572 people from surface water sources.
There are 3 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| December 30, 2024 | Surface Water Treatment Rule | Monitoring | Unresolved |
| August 14, 2024 | Lead and Copper Rule | Monitoring | Resolved |
| November 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| November 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| November 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 20, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
| October 20, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
| April 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| April 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| April 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| April 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 6 | No |
| Surface Water Treatment Rule | Treatment Technique | 3 | No |
| Consumer Confidence Report Rule | Reporting | 3 | No |
| Lead and Copper Rule | Treatment Technique | 1 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| BUTLER CO. WATER DISTRICT 2 PWS | OH0900303 | 116,572 | Surface water |
| SOUTHWEST REGIONAL WATER DISTRICT | OH0903912 | 42,856 | Groundwater |
| CROUSE MOBILE HOME PARK & SALES, LLC | OH0902912 | 247 | Groundwater |
What You Can Do
- Review your annual Consumer Confidence Report (CCR) — Your utility publishes this each July
- Test your home’s water — Especially if you have older plumbing (pre-1986) that may contain lead
- Stay informed — Bookmark this page to check for updates on your water quality
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Ohio
- 43016 (Dublin)
- 43025 (Hebron)
- 43040 (Marysville)
- 43055 (Newark)
- 43068 (Reynoldsburg)
- 43081 (Westerville) — 2 violations
- 43085 (Columbus) — 14 violations
- 43125 (Groveport)
- 43137 (Lockbourne) — 2 violations
- 43301 (Marion) — 4 violations
- 43402 (Bowling Green) — 9 violations
- 43551 (Perrysburg) — 19 violations
- 43601 (Toledo) — 11 violations
- 43616 (Oregon)
- 43701 (Zanesville) — 2 violations
- 43952 (Steubenville) — 27 violations
- 44004 (Ashtabula) — 1 violation
- 44022 (Chagrin Falls) — 9 violations
- 44052 (Lorain) — 3 violations
- 44060 (Mentor) — 1 violation
Nearby Water Quality Reports
- 45014 (Fairfield) — 6 mi — 1 violation
- 45069 (West Chester) — 8 mi — 2 violations
- 45042 (Middletown) — 11 mi
- 45201 (Cincinnati) — 17 mi — 1 violation
- 45342 (Miamisburg) — 21 mi — 2 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for BUTLER CO. WATER DISTRICT 2 PWS (OH0900303) on EPA.gov.
Frequently Asked Questions
Is the tap water in 45011 safe to drink?
Based on EPA records, the water system serving ZIP code 45011 has only monitoring/reporting violations, which are procedural in nature. However, individual home conditions (old pipes, well water) can affect quality.
Where does 45011’s water come from?
The primary water source for this area is surface water. BUTLER CO. WATER DISTRICT 2 PWS serves approximately 116,572 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 45011 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 45011. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 45011?
Radon zone data is not available for ZIP code 45011. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.