PlainWater

CITY OF COLUMBUS

PWS ID: TX0450001 · COLUMBUS, Texas 78934-0087

PFAS Detected

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

Population Served
3,739
Total Violations
33
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,806
County
Colorado
School/Daycare
No
MCL Violations
4
Monitoring Violations
24
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 9 2024
Coliform (TCR) MR 4 2005
Coliform (TCR) MCL 4 2015
E. COLI MR 4 2021
Revised Total Coliform Rule MON 4 2021
Chlorine MR 3 2008
Consumer Confidence Rule Other 2 2020
Public Notice Other 2 2022

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
PFDA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 5/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/1/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/1/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 5/1/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHxA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 5/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/1/2023 26.9000 µg/L 9 µg/L Detected
HFPO-DA 5/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 5/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 5/1/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 5/1/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 5/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 5/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/1/2023 <0.02 µg/L 0.02 µg/L Not Detected
9Cl-PF3ONS 5/1/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 5/1/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 5/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/1/2023 34.4000 µg/L 9 µg/L Detected
PFOS 5/1/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 5/1/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 5/1/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/1/2023 <0.006 µg/L 0.006 µg/L Not Detected
ADONA 5/1/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 5/1/2023 <0.008 µg/L 0.008 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.