What's in WALNUT CREEK SUD's water?
WALNUT CREEK SUD had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 30,364 people get their water from it, across 10,822 connections.
WALNUT CREEK SUD's record against the rest of the country
Out of 12,903 systems in this dataset, WALNUT CREEK SUD ranks 263th by violation burden (98th percentile) - 64 violations total, 51 health-baseds.
Against the TX average
TX's 1,633 covered systems average 6.7 health-based violations each; WALNUT CREEK SUD carries 51, more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
WALNUT CREEK SUD's most recent violation on record is dated 2026-06-12, with the most recent health-based one dated 2025-05-10. Last reported to EPA: 06/26/2026.
The concern categories on record
WALNUT CREEK 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:
- Lead & copper - flagged from: LEAD AND COPPER RULE REVISIONS
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
- Disinfection byproducts - flagged from: Chlorite; TTHM; Total Haloacetic Acids (HAA5)
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What WALNUT CREEK SUD's record does not cover
WALNUT CREEK SUD'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 WALNUT CREEK SUD's customers' taps is household plumbing, invisible to a system-level record ranked 263th of 12,903 by violation count. The guide to what this data misses covers that gap.