PlainWater
States → California

COUNTY SERVICE AREA 11

PWS ID: CA4100582 · REDWOOD CITY, California 94063

Population Served
450
Total Violations
47
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
103
County
San Mateo
School/Daycare
No
MCL Violations
0
Monitoring Violations
45
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 3 1996
Toluene MR 2 2004
Benzene MR 2 2004
Tetrachloroethylene MR 2 2004
1,1-Dichloroethylene MR 2 2004
1,1,1-Trichloroethane MR 2 2004
1,2-Dichloroethane MR 2 2004
1,2-Dichloropropane MR 2 2004
p-Dichlorobenzene MR 2 2004
Vinyl chloride MR 2 2004
Trichloroethylene MR 2 2004
cis-1,2-Dichloroethylene MR 2 2004
Styrene MR 2 2004
Xylenes, Total MR 2 2004
Revised Total Coliform Rule TT 2 2019
1,1,2-Trichloroethane MR 2 2004
1,2,4-Trichlorobenzene MR 2 2004
DICHLOROMETHANE MR 2 2004
trans-1,2-Dichloroethylene MR 2 2004
Carbon tetrachloride MR 2 2004
o-Dichlorobenzene MR 2 2004
Ethylbenzene MR 2 2004
CHLOROBENZENE MR 2 2004
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.