Is DIANA SUD's water safe to drink?
DIANA SUD has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 7,320 people get their water from it, across 2,440 connections.
How this compares nationally
29 total violations and 1 health-based ones put DIANA SUD at the 41th percentile nationally for violation burden, rank 7,673 of 12,903.
How DIANA SUD compares within TX
Among the 1,633 TX systems in this dataset, the average is 6.7 health-based violations - DIANA SUD's 1 is at or below that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for DIANA SUD is from 2024-02-07 (health-based: 2007-01-04). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
DIANA SUD'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:
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is disinfection byproducts, which points toward a carbon-class filter if you want to address it directly.
What this data is and is not
Everything on this page is DIANA SUD's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and DIANA SUD's customers' taps is household plumbing, invisible to a system-level record ranked 7,673th of 12,903 by violation count. The guide to what this data misses covers that gap.