D32/100
Logan Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 9,654 residents · Ohio
What's In Logan'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) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
2
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – August 30, 2023Enforcement: Resolving — corrective action underway
TIER 3Unresolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2022Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
Surface water treatment technique failure
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
LOGAN, CITY OF
Population Served
6,704
Water Source
Groundwater
System ID
OH3700612
OLD STRAITSVILLE WATER ASSOCIATION
Population Served
2,950
Water Source
Purchased Groundwater
System ID
OH6401403
Frequently Asked Questions About Logan Water
Is Logan tap water safe to drink?
Logan, Ohio tap water receives a grade of D (32/100), which is considered poor. 1 contaminant(s) exceed EPA maximum contaminant levels and 47 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Logan's water?
Of the 32 contaminants tested in Logan'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 Logan have any water quality violations?
Yes, Logan has 47 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, RPT, Other. 24 of these are health-based violations, which are the most serious category.
Do I need a water filter in Logan?
Based on EPA data, using a water filter in Logan 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 Logan's tap water come from?
Logan's drinking water is sourced from groundwater and supplied by LOGAN, CITY OF and 1 other water system(s). The system serves approximately 9,654 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Logan'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. Logan'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 Logan's water compare to other cities in Ohio?
Logan's water quality score of 32/100 earns a grade of D, which is considered poor. This is a concerning score that suggests significant water quality issues. Visit our Ohio state page to see how all cities in the state compare.
What should I do if I'm concerned about Logan's water quality?
If you have concerns about Logan'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 (LOGAN, CITY OF) 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.