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States → Texas

CITY OF HIDALGO WATER SYSTEM

PWS ID: TX1080021 · HIDALGO, Texas 78557-4104

PFAS Detected

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

Population Served
14,800
Total Violations
40
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
3,947
County
Hidalgo
School/Daycare
No
MCL Violations
0
Monitoring Violations
15
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 12 2024
Public Notice Other 7 2025
Chlorine MR 4 2021
Lead and Copper Rule MR 4 2019
Revised Total Coliform Rule MON 4 2021
LEAD AND COPPER RULE REVISIONS TT 3 2024
Coliform (TCR) MR 3 2007
LEAD AND COPPER RULE REVISIONS RPT 3 2024

PFAS Testing Results (UCMR5)

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

Contaminant Date Result MRL Status
8:2 FTS 8/27/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/27/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/27/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 8/27/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFPeS 8/27/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/27/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/27/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 8/27/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/27/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/27/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/27/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/27/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/27/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/27/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/27/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/27/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 8/27/2024 44.4000 µg/L 9 µg/L Detected
PFTA 8/27/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHpA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/27/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/27/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 8/27/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/27/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/27/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 8/27/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/27/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/27/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/27/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 8/27/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/27/2024 <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.