B77/100
LOUISVILLE CITY PWS — Water Quality Report 2026
Serving 9,186 people · Ohio
Water Source
Groundwater
County
—
System ID
OH7603012
Violations
12
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 58.90 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 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: July 1, 2023 – August 18, 2023Enforcement: 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
Frequently Asked Questions About LOUISVILLE CITY PWS
Is LOUISVILLE CITY PWS water safe to drink?
LOUISVILLE CITY PWS water receives a grade of B (77/100), which is considered good. Out of 39 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has LOUISVILLE CITY PWS detected?
39 contaminants were tested in LOUISVILLE CITY PWS's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does LOUISVILLE CITY PWS have any EPA violations?
Yes, LOUISVILLE CITY PWS has 12 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MR.
How many people does LOUISVILLE CITY PWS serve?
LOUISVILLE CITY PWS serves approximately 9,186 people, Ohio.
What type of water does LOUISVILLE CITY PWS provide?
LOUISVILLE CITY PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OH7603012.
How does LOUISVILLE CITY PWS compare to other utilities in Ohio?
LOUISVILLE CITY PWS scores 77/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Ohio state page for a full comparison of water systems.