DrinkingWaterCheck

Is MCCOY WSC's water safe to drink?

MCCOY WSC has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 9,621 people through 3,207 service connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, MCCOY WSC ranks 2,731th by violation burden (79th percentile) - 19 violations total, 7 health-baseds.

Against the TX average

Among the 1,633 TX systems in this dataset, the average is 6.7 health-based violations - MCCOY WSC's 7 is above that. See the lead and copper guide for why lead counts differently.

Most recent violation on record

MCCOY WSC's most recent violation on record is dated 2021-01-02, with the most recent health-based one dated 2012-01-06. Last reported to EPA: 06/26/2026.

The concern categories on record

MCCOY 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:

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 MCCOY WSC's record does not cover

MCCOY WSC'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 MCCOY WSC's customers' taps is household plumbing, invisible to a system-level record ranked 2,731th of 12,903 by violation count. The guide to what this data misses covers that gap.