PlainWater
States → Texas

CITY OF LLANO

PWS ID: TX1500001 · LLANO, Texas 78643-1935

PFAS Detected

2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
3,352
Total Violations
47
Health-Based Violations
14
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,834
County
Llano
School/Daycare
No
MCL Violations
6
Monitoring Violations
21
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Interim Enhanced Surface Water Treatment Rule MR 12 2019
Coliform (TCR) MR 8 2015
Interim Enhanced Surface Water Treatment Rule TT 8 2010
Public Notice Other 6 2020
Coliform (TCR) MCL 4 2015
Combined Radium (-226 and -228) MCL 2 2002
Consumer Confidence Rule Other 1 1999
Lead and Copper Rule MR 1 2013

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFHxS 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 8/23/2023 0.0058 µg/L 0.005 µg/L Detected
PFHpS 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/23/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/23/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/23/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFBS 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/23/2023 0.0063 µg/L 0.005 µg/L Detected
PFHpA 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/23/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 8/23/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 8/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 8/23/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/23/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/23/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 8/23/2023 <0.008 µg/L 0.008 µg/L Not Detected
lithium 8/23/2023 <9 µg/L 9 µg/L Not Detected
PFUnA 8/23/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFOS 5/14/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/14/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/14/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/14/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/14/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 5/14/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/14/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/14/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/14/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 5/14/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFHxS 5/14/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/14/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/14/2023 <9 µg/L 9 µg/L Not Detected
PFHpS 5/14/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/14/2023 <0.002 µg/L 0.002 µg/L Not Detected
NEtFOSAA 5/14/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/14/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 5/14/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFBS 5/14/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/14/2023 <0.003 µg/L 0.003 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.