B63/100
Miamisburg Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 24,540 residents · Ohio
What's In Miamisburg's Tap Water?
67
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 172.00 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: December 18, 2024 – June 10, 2025Enforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
MIAMISBURG CITY PWS
Population Served
19,790
Water Source
Groundwater
System ID
OH5701212
JEFFERSON REGIONAL WATER AUTHORITY
Population Served
4,750
Water Source
Groundwater
System ID
OH5703012
Frequently Asked Questions About Miamisburg Water
Is Miamisburg tap water safe to drink?
Miamisburg, Ohio tap water receives a grade of B (63/100), which is considered good. Out of 67 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Miamisburg's water?
Of the 67 contaminants tested in Miamisburg's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Miamisburg have any water quality violations?
Yes, Miamisburg has 52 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR. None of these are classified as health-based violations.
Do I need a water filter in Miamisburg?
Based on EPA data, using a water filter in Miamisburg is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Miamisburg's tap water come from?
Miamisburg's drinking water is sourced from groundwater and supplied by MIAMISBURG CITY PWS and 1 other water system(s). The system serves approximately 24,540 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Miamisburg's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Miamisburg's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Miamisburg's water compare to other cities in Ohio?
Miamisburg's water quality score of 63/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Ohio state page to see how all cities in the state compare.
What should I do if I'm concerned about Miamisburg's water quality?
If you have concerns about Miamisburg's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (MIAMISBURG CITY PWS) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.