PWSID
TX0430039
State
Texas
City
MCKINNEY
Population served
224,043
Primary source
SWP
Score history
No change since tracking began Jun 18, 2026.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through May 2025). Levels in parts per trillion (ppt).
PFBA
6.3 ppt
limit —
Violations & enforcement
3
Violations on record
0
Unaddressed
0
Health-based
11
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jun 2022. Official EPA record →
Recent enforcement actions
- State action · SIF Jun 2022
- State action · SIF May 2022
- State action · SOX Aug 2021
- State action · SIA Mar 2021
- State action · SIE Mar 2021
- State action · SIA Mar 2021
- State action · SIE Mar 2021
- State action · SOX Jan 2015
Area water-quality monitoring
Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.
Fluoride
1 station · latest Nov 2025
Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.
This profile is built from EPA public records for system TX0430039 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.