WI / Beloit
WI · Tap water records
Beloit tap water, in plain English
Here is what the EPA's own data shows about tap water in Beloit. According to EPA SDWIS data retrieved June 2026, Beloit is served by 1 active community water system, together reported to serve about 36,677 people.
As of June 2026, EPA records show 11 violations across the community water system(s) serving Beloit, going back to the earliest EPA record. 8 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
Beloit City Of
36,677 served · groundwater · PWSID WI1540112 - Health-based Combined Radium (-226 and -228): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 8 times between July 2019 and October 2019. The EPA record lists a level of 6.0275 PCI/L; the limit (MCL) is 5.5 PCI/L. EPA records do not show all of these as returned to compliance.
- Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between July 2013 and July 2024. 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.