PlainWater

ROSARIO

PWS ID: WA5374270 · Tacoma, Washington 98444

Population Served
1,031
Total Violations
54
Health-Based Violations
8
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
246
County
San Juan
School/Daycare
No
MCL Violations
0
Monitoring Violations
45
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 11 2010
Surface Water Treatment Rule TT 8 2010
Coliform (TCR) MR 3 1992
Asbestos MR 2 2010
cis-1,2-Dichloroethylene MR 1 2004
o-Dichlorobenzene MR 1 2004
p-Dichlorobenzene MR 1 2004
Vinyl chloride MR 1 2004
1,1-Dichloroethylene MR 1 2004
trans-1,2-Dichloroethylene MR 1 2004
1,2-Dichloropropane MR 1 2004
Trichloroethylene MR 1 2004
Tetrachloroethylene MR 1 2004
CHLOROBENZENE MR 1 2004
Benzene MR 1 2004
Ethylbenzene MR 1 2004
Mercury MR 1 1979
Gross Alpha, Excl. Radon and U MR 1 1979
Barium MR 1 1979
Arsenic MR 1 1979
Fluoride MR 1 1979
Nitrate MR 1 1979
Chromium MR 1 1979
Styrene MR 1 2004
Selenium MR 1 1979
1,2,4-Trichlorobenzene MR 1 2004
DICHLOROMETHANE MR 1 2004
Toluene MR 1 2004
1,1,2-Trichloroethane MR 1 2004
1,2-Dichloroethane MR 1 2004
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.