Does Ripon, CA tap water have any EPA-reported violations?

As of June 2026, EPA SDWIS records show 9 violation(s) across the community water systems serving Ripon, of which 0 are classified by the EPA as health-based. Most older violations have returned to compliance; see the per-system list.

Where does Ripon, CA tap water come from?

Ripon is served by 2 active community water system(s). Their primary sources, per EPA records, are: groundwater, surface water.

CA / Ripon

CA · Tap water records

Ripon tap water, in plain English

Here is what the EPA's own data shows about tap water in Ripon. According to EPA SDWIS data retrieved June 2026, Ripon is served by 2 active community water systems, together reported to serve about 15,766 people.

As of June 2026, EPA records show 9 violations across the community water system(s) serving Ripon, going back to the earliest EPA record. None were health-based; the records are monitoring or reporting violations (a required test or report was late or missed). Each is listed by system below, with its status.

2

Community water systems
~15,766

People served (EPA-reported)
June 2026

EPA records reviewed through

What the EPA has on record, by system

Ripon, City Of

15,741 served · groundwater · PWSID CA3910007

Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times in October 2014. All have since returned to compliance, per EPA records.
Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times in October 2014. 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 July 2010. All have since returned to compliance, per EPA records.

South San Joaquin Irrigation District

25 served · surface water · PWSID CA5010040

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.

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.