A86/100
Troy Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 6,109 residents · Ohio
What's In Troy's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
0
Health-Related
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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
MIAMI CO-N25A EXTENSION
Population Served
2,367
Water Source
Purchased Groundwater
System ID
OH5502303
MIAMI CO-CAMP TROY PWS
Population Served
3,742
Water Source
Purchased Groundwater
System ID
OH5502503
Frequently Asked Questions About Troy Water
Is Troy tap water safe to drink?
Troy, Ohio tap water receives a grade of A (86/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 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 Troy's water?
Of the 31 contaminants tested in Troy's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Troy have any water quality violations?
Yes, Troy has 10 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other, MCL. 3 of these are health-based violations, which are the most serious category.
Do I need a water filter in Troy?
Troy water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Troy's tap water come from?
Troy's drinking water is sourced from purchased groundwater and supplied by MIAMI CO-N25A EXTENSION and 1 other water system(s). The system serves approximately 6,109 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Troy'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. Troy'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 Troy's water compare to other cities in Ohio?
Troy's water quality score of 86/100 earns a grade of A, which is considered excellent. This places Troy among the better-performing water systems in Ohio. Visit our Ohio state page to see how all cities in the state compare.
What should I do if I'm concerned about Troy's water quality?
If you have concerns about Troy'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 (MIAMI CO-N25A EXTENSION) 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.