PlainWater
States09

Cocopah Casino

PWS ID: 090400673 · Somerton, 09 85350

PFAS Detected

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

Population Served
5,300
Total Violations
109
Health-Based Violations
15
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Native American
Connections
5
School/Daycare
No
MCL Violations
14
Monitoring Violations
39
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 17 2013
TTHM MCL 7 2016
Coliform (TCR) MCL 7 2009
Nitrate MR 3 2009
Total Haloacetic Acids (HAA5) MR 3 2015
TTHM MR 3 2015
Public Notice Other 3 2016
Revised Total Coliform Rule RPT 3 2025
CYANIDE MR 2 2011
Arsenic MR 1 2008
Barium MR 1 2008
Chromium MR 1 2008
Fluoride MR 1 2008
Selenium MR 1 2008
Antimony, Total MR 1 2008
Beryllium, Total MR 1 2008
Thallium, Total MR 1 2008
Lead and Copper Rule MR 1 2011
Mercury MR 1 2008
Groundwater Rule TT 1 2022
Cadmium MR 1 2008

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 30 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 4/8/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFNA 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 4/8/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 4/8/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFMBA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 4/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 4/8/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFDoA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 4/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 4/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 4/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 4/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 4/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 4/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 4/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 4/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 4/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 4/8/2025 200.0000 µg/L 9 µg/L 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.