PlainWater

LIMESTONE POINT WATER COMPANY INC

PWS ID: WA5347280 · Friday Harbor, Washington 98250

Population Served
81
Total Violations
86
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
54
County
San Juan
School/Daycare
No
MCL Violations
14
Monitoring Violations
64
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 15 1994
Coliform (TCR) MCL 14 1995
Arsenic MR 5 2024
Consumer Confidence Rule Other 3 2024
cis-1,2-Dichloroethylene MR 2 2025
DICHLOROMETHANE MR 2 2025
1,1-Dichloroethylene MR 2 2025
1,2-Dichloropropane MR 2 2025
Tetrachloroethylene MR 2 2025
Benzene MR 2 2025
Toluene MR 2 2025
Ethylbenzene MR 2 2025
Styrene MR 2 2025
CHLOROBENZENE MR 2 2025
1,1,2-Trichloroethane MR 2 2025
p-Dichlorobenzene MR 2 2025
1,2,4-Trichlorobenzene MR 2 2025
Vinyl chloride MR 2 2025
o-Dichlorobenzene MR 2 2025
trans-1,2-Dichloroethylene MR 2 2025
1,1,1-Trichloroethane MR 2 2025
Trichloroethylene MR 2 2025
1,2-Dichloroethane MR 2 2025
Carbon tetrachloride MR 2 2025
Revised Total Coliform Rule MON 1 2021
Lead and Copper Rule MR 1 1998
Gross Alpha, Excl. Radon and U MR 1 1979
Nitrate MR 1 2020
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.