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States → Texas

LA VENTANA WATER SUPPLY SYSTEM

PWS ID: TX1050131 · DRIPPING SPRINGS, Texas 78620-4973

PFAS Detected

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

Population Served
747
Total Violations
20
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
253
County
Hays
School/Daycare
No
MCL Violations
0
Monitoring Violations
9
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 4 2014
LEAD AND COPPER RULE REVISIONS TT 4 2024
LEAD AND COPPER RULE REVISIONS RPT 4 2024
Chlorine MR 3 2008
E. COLI MR 2 2021
Public Notice Other 1 2023

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 56 samples detected PFAS.

Contaminant Date Result MRL Status
PFMBA 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/20/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/20/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 5/20/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/20/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/20/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFPeA 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/20/2025 <0.02 µg/L 0.02 µg/L Not Detected
NEtFOSAA 5/20/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/20/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 5/20/2025 <0.008 µg/L 0.008 µg/L Not Detected
NMeFOSAA 5/20/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFMPA 5/20/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 5/20/2025 <0.004 µg/L 0.004 µg/L Not Detected
lithium 5/20/2025 80.4000 µg/L 9 µg/L Detected
PFPeS 5/20/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 5/20/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 5/20/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/20/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 5/20/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/20/2025 <0.002 µg/L 0.002 µg/L Not Detected
4:2 FTS 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 10/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 10/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 10/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 10/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 10/14/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFPeA 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 10/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 10/14/2025 75.1000 µg/L 9 µg/L Detected
PFMBA 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 10/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 10/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 10/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 10/14/2025 <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.