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States → California

CITY OF MILPITAS

PWS ID: CA4310005 · MILPITAS, California 95035

Population Served
81,773
Total Violations
15
Health-Based Violations
8
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
15,928
County
Santa Clara
School/Daycare
No
MCL Violations
0
Monitoring Violations
5
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 8 1995
Revised Total Coliform Rule MON 3 2025
Coliform (TCR) MR 2 1995

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
PFNA 6/24/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 6/24/2025 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 6/24/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFTrDA 6/24/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFHxA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 6/24/2025 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 6/24/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 6/24/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 6/24/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 6/24/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 6/24/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 6/24/2025 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 6/24/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 6/24/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/24/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 6/24/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 6/24/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFOS 6/24/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 6/24/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 6/24/2025 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 6/24/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 6/24/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/24/2025 <0.02 µg/L 0.02 µg/L Not Detected
6:2 FTS 6/24/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 6/24/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFBS 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 6/24/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFTrDA 6/24/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 6/24/2025 <0.008 µg/L 0.008 µg/L Not Detected
lithium 6/24/2025 <9 µg/L 9 µg/L Not Detected
PFHxS 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 6/24/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/24/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 6/24/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 6/24/2025 <0.004 µg/L 0.004 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.