DrinkingWaterCheck

SHAMROCK MUNICIPAL WATER SYSTEM: EPA violation history, explained

SHAMROCK MUNICIPAL WATER SYSTEM had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 2,311 people get their water from it, across 1,267 connections.

How this compares nationally

39 total violations and 7 health-based ones put SHAMROCK MUNICIPAL WATER SYSTEM at the 80th percentile nationally for violation burden, rank 2,641 of 12,903.

Against the TX average

Among the 1,633 TX systems in this dataset, the average is 6.7 health-based violations - SHAMROCK MUNICIPAL WATER SYSTEM's 7 is above that. The filter guide explains what a violation like this actually calls for.

Most recent violation on record

SHAMROCK MUNICIPAL WATER SYSTEM's most recent violation on record is dated 2025-01-03, with the most recent health-based one dated 2022-01-07. Last reported to EPA: 06/26/2026.

The concern categories on record

SHAMROCK MUNICIPAL 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:

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 SHAMROCK MUNICIPAL WATER SYSTEM's record does not cover

This is what SHAMROCK MUNICIPAL WATER SYSTEM reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and SHAMROCK MUNICIPAL WATER SYSTEM's customers' taps is household plumbing, invisible to a system-level record ranked 2,641th of 12,903 by violation count. The guide to what this data misses covers that gap.