Water system · PWSID TX1010056
CLEAR LAKE CITY WATER AUTHORITY
PWSID
TX1010056
State
Texas
City
HOUSTON
Population served
89,702
Primary source
SWP
Score history
▼ 27 points — the score moved from 100 to 73 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 Mar 2024). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
4.6 ppt
limit 4 ppt
PFOA
Perfluorooctanoic acid
4 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
3.4 ppt
limit 10 ppt
Lithium
11,000 ppt
limit —
PFBA
10 ppt
limit —
PFBS
3.9 ppt
limit —
PFPeA
3.9 ppt
limit —
PFHpA
3.7 ppt
limit —
PFHxA
3.6 ppt
limit —
Violations & enforcement
3
Violations on record
0
Unaddressed
0
Health-based
11
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Oct 2017. Official EPA record →
Recent enforcement actions
- State action · SOX Oct 2017
- State action · SOX Jul 2017
- State action · SIF Jul 2017
- State action · SIE Apr 2017
- State action · SIA Apr 2017
- State action · SIF Jan 2017
- State action · SIA Oct 2016
- State action · SIE Oct 2016
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
2 stations · 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 TX1010056 — 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.