What's in NORTH ALAMO WSC's water?
NORTH ALAMO WSC had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. It serves 171,195 people through 57,065 service connections.
How this compares nationally
NORTH ALAMO WSC has 33 violations on record in total, 10 of thems health-based - ranking it 1,931th of 12,903 systems by violation count, the 85th percentile nationally.
How NORTH ALAMO WSC compares within TX
Among the 1,633 TX systems in this dataset, the average is 6.7 health-based violations - NORTH ALAMO WSC's 10 is above that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for NORTH ALAMO WSC is from 2026-07-03 (health-based: 2025-01-10). Last reported to EPA: 06/26/2026.
What kind of problem, specifically
NORTH ALAMO WSC'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: Coliform (TCR)
- Disinfection byproducts - flagged from: TTHM
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 this data is and is not
Everything on this page is NORTH ALAMO WSC's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 10 health-based violations on file for NORTH ALAMO WSC - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.