MAYSVILLE REGIONAL WATER — Water Quality Report 2026
Serving 6,540 people · Ohio
Water Source
Surface Water
County
—
System ID
OH6001411
Violations
106
Contaminant Test Results
2 contaminants above EPA health goals
Contaminant
Detected
Limit (MCL)
Goal (MCLG)
Status
Copper (90th percentile)
137.00 mg/L
1.30 mg/L
1.30 mg/L
Over Limit
PFOA
0.004 µg/L
0.004 µg/L
0 µg/L
Above Goal
EPA Violation History
17
Violations (last 5yr)
3
Unresolved
15
Health-Related
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2025 – June 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Treatment technique violation
When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Surface water treatment technique failure
When: July 11, 2024Enforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2023 – September 30, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2023 – June 30, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2023 – March 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2022 – September 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2022 – June 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved
Surface water treatment technique failure
When: October 19, 2021 – May 30, 2023Enforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2021 – December 31, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2021 – September 30, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issued
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 MAYSVILLE REGIONAL WATER
Is MAYSVILLE REGIONAL WATER water safe to drink?
MAYSVILLE REGIONAL WATER water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 106 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MAYSVILLE REGIONAL WATER detected?
32 contaminants were tested in MAYSVILLE REGIONAL WATER's water. Notable contaminants include Copper (90th percentile), PFOA. 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does MAYSVILLE REGIONAL WATER have any EPA violations?
Yes, MAYSVILLE REGIONAL WATER has 106 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, TT, Other. 46 are health-based violations.
How many people does MAYSVILLE REGIONAL WATER serve?
MAYSVILLE REGIONAL WATER serves approximately 6,540 people, Ohio.
What type of water does MAYSVILLE REGIONAL WATER provide?
MAYSVILLE REGIONAL WATER sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is OH6001411.
How does MAYSVILLE REGIONAL WATER compare to other utilities in Ohio?
MAYSVILLE REGIONAL WATER scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Ohio state page for a full comparison of water systems.