MASON CREEK UTILITY DISTRICT: EPA violation history, explained

MASON CREEK UTILITY DISTRICT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 8,900 people get their water from it, across 2,602 connections.

MASON CREEK UTILITY DISTRICT's record against the rest of the country

Out of 12,903 systems in this dataset, MASON CREEK UTILITY DISTRICT ranks 7,728th by violation burden (40th percentile) - 25 violations total, 1 health-based.

Against the TX average

TX's 1,633 covered systems average 6.7 health-based violations each; MASON CREEK UTILITY DISTRICT carries 1, not more than typical for the state. See the lead and copper guide for why lead counts differently.

Most recent violation on record

MASON CREEK UTILITY DISTRICT's most recent violation on record is dated 2021-06-12, with the most recent health-based one dated 1992-01-11. Last reported to EPA: 06/26/2026.

The concern categories on record

MASON CREEK UTILITY DISTRICT'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)

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 MASON CREEK UTILITY DISTRICT's record does not cover

MASON CREEK UTILITY DISTRICT'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 MASON CREEK UTILITY DISTRICT's customers' taps is household plumbing, invisible to a system-level record ranked 7,728th of 12,903 by violation count. The guide to what this data misses covers that gap.