OH / Massillon
OH · Tap water records
Massillon tap water, in plain English
Here is what the EPA's own data shows about tap water in Massillon. According to EPA SDWIS data retrieved June 2026, Massillon is served by 17 active community water systems, together reported to serve about 106,712 people.
As of June 2026, EPA records show 46 violations across the community water system(s) serving Massillon, going back to the earliest EPA record. 9 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.
What the EPA has on record, by system
Aqua Ohio - Massillon Pws
95,636 served · groundwater · PWSID OH7604512 - Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in January 2021. All have since returned to compliance, per EPA records.
- Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in January 2021. All have since returned to compliance, per EPA records.
- Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in February 2020. EPA records do not show all of these as returned to compliance.
Aqua Ohio - Mohawk Pws
2,376 served · groundwater · PWSID OH1000812 - Health-based Lead and Copper Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in January 1998. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
- Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in January 2020. EPA records do not show all of these as returned to compliance.
Aqua Ohio - Midvale
2,147 served · groundwater · PWSID OH7900612 - Health-based LEAD AND COPPER RULE REVISIONS: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times in October 2024. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
- Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 5 times between July 2010 and October 2025. EPA records do not show all of these as returned to compliance.
- Monitoring LEAD AND COPPER RULE REVISIONS: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in October 2024. 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 December 2012. All have since returned to compliance, per EPA records.
Aqua Ohio - Beechcrest
1,496 served · groundwater · PWSID OH6705212 - Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in October 2021. EPA records do not show all of these as returned to compliance.
Aqua Ohio - Mansfield System #01
813 served · groundwater · PWSID OH7002812 - Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between July 2001 and January 2020. EPA records do not show all of these as returned to compliance.
Aqua Ohio - Mansfield System #07
781 served · groundwater · PWSID OH7001612 - Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2001. All have since returned to compliance, per EPA records.
Aqua Ohio - Aurora E
766 served · groundwater · PWSID OH6700512 As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Aqua Ohio - Mansfield System #02
588 served · groundwater · PWSID OH7005912 As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Aqua Ohio - Mansfield System #03
525 served · groundwater · PWSID OH7005812 - Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in November 2020. EPA records do not show all of these as returned to compliance.
Aqua Ohio - Mansfield System #06
412 served · groundwater · PWSID OH7005612 As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Aqua Ohio - Firestone Trace
336 served · groundwater · PWSID OH7709412 As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Aqua Ohio - Mansfield System #11
280 served · groundwater · PWSID OH7003312 - Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between October 1999 and January 2019. EPA records do not show all of these as returned to compliance.
- 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 January 1996. All have since returned to compliance, per EPA records.
Aqua Ohio - Mansfield System #08
170 served · groundwater · PWSID OH7003212 - Health-based Lead and Copper Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 6 times between July 2019 and January 2021. The EPA record for these does not include a measured level. 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 8 times between July 2016 and January 2021. All have since returned to compliance, per EPA records.
Aqua Ohio - Mansfield System #04
142 served · groundwater · PWSID OH7001412 - Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2001. All have since returned to compliance, per EPA records.
Aqua Ohio - Mansfield System #05
123 served · groundwater · PWSID OH7004912 As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Aqua Ohio - Southwood Estates
81 served · groundwater · PWSID OH0301512 - Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in December 2018. EPA records do not show all of these as returned to compliance.
Aqua Ohio - Mansfield System #10
40 served · groundwater · PWSID OH7006612 - 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 January 1998. 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 June 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.