DECKER HILLS: EPA violation history, explained

DECKER HILLS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 3,780 people through 1,260 service connections.

Ranked against every other system in this dataset

13 total violations and 2 health-based ones put DECKER HILLS at the 50th percentile nationally for violation burden, rank 6,416 of 12,903.

Against the TX average

DECKER HILLS's 2 health-based violations sit within the TX average of 6.7, across 1,633 systems statewide. See the lead and copper guide for why lead counts differently.

Most recent violation on record

DECKER HILLS's most recent violation on record is dated 2027-06-10, with the most recent health-based one dated 2010-01-02. Last reported to EPA: 06/26/2026.

The concern categories on record

DECKER HILLS'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 DECKER HILLS's record does not cover

This is what DECKER HILLS 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. This record - 2 health-based violations on file for DECKER HILLS - 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.