PWSID
TX0790470
State
Texas
City
HOUSTON
Population served
4,314
Primary source
SWP
Score history
▼ 9 points — the score moved from 100 to 91 on Jun 18, 2026, as newly published EPA data was incorporated.
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 Dec 2023). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
4.2 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
3 ppt
limit 10 ppt
Lithium
13,000 ppt
limit —
PFBA
22 ppt
limit —
PFPeA
6 ppt
limit —
PFHxA
5.8 ppt
limit —
Violations & enforcement
3
Violations on record
0
Unaddressed
0
Health-based
2
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Aug 2013. Official EPA record →
Recent enforcement actions
- State action · SOX Aug 2013
- State action · SIF Nov 2011
This profile is built from EPA public records for system TX0790470 — 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.