This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment RuleEnforcement: Formal — state order issuedVerify on EPA.gov
TIER 3Unresolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment RuleEnforcement: Formal — state order issuedVerify on EPA.gov
TIER 3Unresolved
Missed required monitoring deadline
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment RuleEnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPRVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPRVerify on EPA.gov
TIER 1 — URGENTResolved
Violation related to Nitrate
When: November 1, 2024 – November 30, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: November 1, 2024 – November 30, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: October 1, 2024 – October 31, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: September 1, 2024 – September 30, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: September 1, 2024 – September 30, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: September 1, 2024 – September 30, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: August 1, 2024 – August 31, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: August 1, 2024 – August 31, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: August 1, 2024 – August 31, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: December 1, 2022 – December 31, 2022Rule: Stage 1 DBPREnforcement: 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 MAYSVILLE PWS
Is MAYSVILLE PWS water safe to drink?
MAYSVILLE PWS water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 109 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MAYSVILLE PWS detected?
1 contaminants were tested in MAYSVILLE PWS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MAYSVILLE PWS have any EPA violations?
Yes, MAYSVILLE PWS has 109 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, MCL, TT. 98 are health-based violations.
How many people does MAYSVILLE PWS serve?
MAYSVILLE PWS serves approximately 1,096 people, Missouri. The system provides water to 1 community: Maysville.
What type of water does MAYSVILLE PWS provide?
MAYSVILLE PWS 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 MO1010510.
How does MAYSVILLE PWS compare to other utilities in Missouri?
MAYSVILLE PWS scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Missouri state page for a full comparison of water systems.