CITY OF MCKINNEY: EPA violation history, explained

CITY OF MCKINNEY's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 224,043 people get their water from it, across 77,058 connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, CITY OF MCKINNEY ranks 11,543th by violation burden (11th percentile) - 3 violations total, 0 health-baseds.

How CITY OF MCKINNEY compares within TX

TX's 1,633 covered systems average 6.7 health-based violations each; CITY OF MCKINNEY carries 0, not more than typical for the state. See the lead and copper guide for why lead counts differently.

Most recent violation on record

The last violation EPA has on record for CITY OF MCKINNEY is from 2021-01-01. Last reported to EPA: 06/26/2026.

What this data is and is not

This is what CITY OF MCKINNEY 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 3 logged violations can see. The guide to what this data misses covers that gap.