PlainWater

STILLWATER MINING COMPANY

PWS ID: MT0003587 · NYE, Montana 59061

Population Served
630
Total Violations
53
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
8
County
Stillwater
School/Daycare
No
MCL Violations
5
Monitoring Violations
48
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 16 2015
Nitrate-Nitrite MR 12 2007
Lead and Copper Rule MR 8 2019
Fluoride MR 8 2005
Coliform (TCR) MCL 5 2012
Revised Total Coliform Rule MON 3 2023
Nitrate MR 1 1993
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.