Is TUD - SONORA/JAMESTOWN WATER SYSTEM's water safe to drink?
TUD - SONORA/JAMESTOWN WATER SYSTEM has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 11,054 people get their water from it, across 5,121 connections.
How this compares nationally
Out of 12,903 systems in this dataset, TUD - SONORA/JAMESTOWN WATER SYSTEM ranks 6,703th by violation burden (48th percentile) - 7 violations total, 2 health-baseds.
Against the CA average
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - TUD - SONORA/JAMESTOWN WATER SYSTEM's 2 is at or below that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
TUD - SONORA/JAMESTOWN WATER SYSTEM's most recent violation on record is dated 2025-01-04, with the most recent health-based one dated 1995-01-03. Last reported to EPA: 06/22/2026.
The concern categories on record
TUD - SONORA/JAMESTOWN WATER SYSTEM's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Surface Water Treatment Rule
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What TUD - SONORA/JAMESTOWN WATER SYSTEM's record does not cover
TUD - SONORA/JAMESTOWN WATER SYSTEM's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and TUD - SONORA/JAMESTOWN WATER SYSTEM's customers' taps is household plumbing, invisible to a system-level record ranked 6,703th of 12,903 by violation count. The guide to what this data misses covers that gap.