TEVISTON, California — The State Water Resources Control Board’s public drinking-water database lists 2026 violations for 1,2,3-trichloropropane (1,2,3-TCP) at the Teviston Community Services District water system. The records identify system CA5400641 and show reported analytical results of 0.0087, 0.0057 and 0.0052 micrograms per liter in entries associated with successive 2026 compliance periods.

What the state records say

California Drinking Water Watch identifies these entries as state primary maximum contaminant level (MCL) violations for 1,2,3-TCP. The posted compliance periods are January–March, April–June and July–September 2026. Each violation can be opened individually to inspect the agency determination, analyte code, enforcement history and status. An individual entry may reflect the state’s compliance determination rather than the date a particular household sample was collected.

These records are strong grounds for requesting an up-to-date explanation, but they are not a substitute for a current notice from the water supplier or a current test at the tap. Residents should not assume that water quality has improved or deteriorated since the published sample data without further results.

How households can obtain current information

Ask the Teviston Community Services District for its most recent consumer confidence report, water-quality notices, interim water arrangements and the status of corrective measures. The official state water-system listing gives the district telephone number as 559-563-1543. California’s Division of Drinking Water District 24 also publishes a contact number of 559-447-3300 for regulatory questions.

People who have specific medical vulnerabilities or need guidance about drinking water should consult current local public-health instructions and qualified professionals. A generic “boil water” suggestion is not an appropriate substitute for contaminant-specific guidance.

Primary sources: State record: 2026 third-period 1,2,3-TCP violation; second-period violation; first-period violation; state system contact details.

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