PlainWater
States → Oregon

TIERRA DEL MAR WATER CO

PWS ID: OR4100610 · CLOVERDALE, Oregon 97112

Population Served
80
Total Violations
193
Health-Based Violations
2
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
271
County
Tillamook
School/Daycare
No
MCL Violations
0
Monitoring Violations
183
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 102 2024
Coliform (TCR) MR 17 2016
TTHM MR 6 2010
Total Haloacetic Acids (HAA5) MR 6 2010
Consumer Confidence Rule Other 5 2025
Nitrate MR 4 2011
Revised Total Coliform Rule MON 3 2025
1,2,4-Trichlorobenzene MR 2 2011
cis-1,2-Dichloroethylene MR 2 2011
DICHLOROMETHANE MR 2 2011
o-Dichlorobenzene MR 2 2011
1,1-Dichloroethylene MR 2 2011
trans-1,2-Dichloroethylene MR 2 2011
1,2-Dichloroethane MR 2 2011
1,1,1-Trichloroethane MR 2 2011
1,2-Dichloropropane MR 2 2011
Trichloroethylene MR 2 2011
Benzene MR 2 2011
Toluene MR 2 2011
p-Dichlorobenzene MR 2 2011
Vinyl chloride MR 2 2011
Surface Water Treatment Rule TT 2 1992
Xylenes, Total MR 2 2011
Styrene MR 2 2011
Tetrachloroethylene MR 2 2011
Ethylbenzene MR 2 2011
Carbon tetrachloride MR 2 2011
1,1,2-Trichloroethane MR 2 2011
CHLOROBENZENE MR 2 2011
Combined Radium (-226 and -228) MR 1 1976
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.