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States → California

REDWOOD TERRACE MUTUAL

PWS ID: CA4100510 · LA HONDA, California 94020

Population Served
56
Total Violations
137
Health-Based Violations
5
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
18
County
San Mateo
School/Daycare
No
MCL Violations
3
Monitoring Violations
126
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 10 2010
Radium-228 MR 4 2009
1,2-Dichloroethane MR 2 2009
Vinyl chloride MR 2 2009
Trichloroethylene MR 2 2009
Xylenes, Total MR 2 2009
TTHM MR 2 2009
Carbon tetrachloride MR 2 2009
Tetrachloroethylene MR 2 2009
1,1,2-Trichloroethane MR 2 2009
1,2,4-Trichlorobenzene MR 2 2009
cis-1,2-Dichloroethylene MR 2 2009
Styrene MR 2 2009
Benzo(a)pyrene MR 2 2009
2,3,7,8-TCDD MR 2 2009
Dalapon MR 2 2009
Pentachlorophenol MR 2 2009
2,4,5-TP MR 2 2009
Di(2-ethylhexyl) phthalate MR 2 2009
BHC-GAMMA MR 2 2009
Chlordane MR 2 2009
Endrin MR 2 2009
Heptachlor epoxide MR 2 2009
Total Polychlorinated Biphenyls (PCB) MR 2 2009
HEXACHLOROBENZENE MR 2 2009
Diquat MR 2 2009
Carbofuran MR 2 2009
Lead and Copper Rule MR 2 2024
Revised Total Coliform Rule TT 2 2019
Gross Alpha, Excl. Radon and U MR 2 1981
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.