PlainWater
States → Oregon

GRESHAM, CITY OF

PWS ID: OR4100357 · GRESHAM, Oregon 97030

Population Served
73,932
Total Violations
24
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
17,513
County
Multnomah
School/Daycare
No
MCL Violations
0
Monitoring Violations
21
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 17 2006
TTHM MR 2 2022
Total Haloacetic Acids (HAA5) MR 2 2022

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 119 samples detected PFAS.

Contaminant Date Result MRL Status
PFBA 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 7/14/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 7/14/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/14/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHpA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 7/14/2025 <9 µg/L 9 µg/L Not Detected
PFMPA 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/14/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFUnA 7/14/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHpS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 7/14/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFPeS 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 4/9/2025 <0.02 µg/L 0.02 µg/L Not Detected
9Cl-PF3ONS 4/9/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHpA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 4/9/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 4/9/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 4/9/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 4/9/2025 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 4/9/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/9/2025 <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.