CA / Laton
CA · Tap water records
Laton tap water, in plain English
Here is what the EPA's own data shows about tap water in Laton. According to EPA SDWIS data retrieved June 2026, Laton is served by 3 active community water systems, together reported to serve about 1,313 people.
As of June 2026, EPA records show 52 violations across the community water system(s) serving Laton, going back to the earliest EPA record. 42 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
Laton Community Services District
1,151 served · groundwater · PWSID CA1010020 - Health-based LEAD AND COPPER RULE REVISIONS: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in October 2024. The EPA record for these does not include a measured level. 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 once in October 2024. EPA records do not show all of these as returned to compliance.
- Monitoring Nitrate: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in January 2016. All have since returned to compliance, per EPA records.
Zonneveld Dairy - Cedar
100 served · groundwater · PWSID CA1000369 - Health-based Arsenic: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 30 times between April 2009 and July 2016. The EPA record lists a level of 0.035 MG/L; the limit (MCL) is 0.01 MG/L. All have since returned to compliance, per EPA records.
- Health-based Nitrate: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 7 times between July 2012 and April 2016. The EPA record lists a level of 46.1 MG/L; the limit (MCL) is 45 MG/L. All have since returned to compliance, per EPA records.
- Health-based Coliform (TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 4 times between August 2008 and June 2012. 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 July 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 3 times between October 2014 and October 2021. EPA records do not show all of these as returned to compliance.
- Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between October 2009 and July 2010. All have since returned to compliance, per EPA records.
Zonneveld Dairy - Cerini
62 served · groundwater · PWSID CA1000627 - 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 2025. 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.