Here is what the EPA's own data shows about tap water in Maysville. According to EPA SDWIS data retrieved October 2026, Maysville is served by 1 active community water system, together reported to serve about 1,096 people.
As of October 2026, EPA records show 70 violations across the community water system(s) serving Maysville, going back to the earliest EPA record. 60 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.
Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 17 times between January 2011 and January 2026. The EPA record for these does not include a measured level. EPA records do not show all of these as returned to compliance.
Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 5 times between January 2017 and January 2026. The EPA record lists a level of 64 UG/L; the limit (MCL) is 60 UG/L. EPA records do not show all of these as returned to compliance.
Health-based Interim Enhanced Surface Water Treatment Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 30 times between December 2011 and November 2024. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
Health-based Surface Water Treatment Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times between August 2024 and September 2024. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
Health-based Chlorite: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in December 2022. The EPA record lists a level of 1.2 MG/L; the limit (MCL) is 1 MG/L. All have since returned to compliance, per EPA records.
Health-based CARBON, TOTAL: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 5 times between July 2013 and July 2014. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
Monitoring Surface Water Treatment Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2025 and November 2025. All have since returned to compliance, per EPA records.
Monitoring Interim Enhanced Surface Water Treatment Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between July 2025 and November 2025. All have since returned to compliance, per EPA records.
Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in August 2025. EPA records do not show all of these as returned to compliance.
Monitoring Chlorine dioxide: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2025. EPA records do not show all of these as returned to compliance.
Monitoring Revised Total Coliform Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in November 2024. All have since returned to compliance, per EPA records.
Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in September 2013. All have since returned to compliance, per EPA records.
What this means
A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.
This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.
Source: U.S. EPA Envirofacts SDWIS, retrieved October 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.