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Wash Plant Metal/Non-Metal

Knife River Billings · Surface

Controlled by Knife River Corporation

Billings, Yellowstone County, MT · Temporarily Idled

MSHA Mine ID: 2400459

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Fatalities: 0
Total incidents: 1
Years on record: 2011
Latest incident: Apr 2011

Compliance record

MSHA citations since 2000

citations

significant & substantial

$3,129

proposed penalties

$3,129

paid to date

Source: MSHA violations data, updated weekly.

Quarterly safety rates

Citations per million employee-hours, as reported to MSHA

Quarter	Hours worked	Citations	Per 1M hrs
2025 Q4	0	0
2025 Q3	0	0
2025 Q2	695	0	0.0
2023 Q4	142	0	0.0
2023 Q3	97	0	0.0
2022 Q3	1,264	0	0.0
2021 Q4	721	1	1387.0
2021 Q3	446	0	0.0

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

No fatalities recorded at this mine.

Reportable incidents

1 on file

2011 · 1 incident

April 29, 2011 MT · Metal/Non-Metal tipple/top lander/skip dumper operator, binman, topman HANDLING OF MATERIALS

Knife River Billings · Over-exertion (Not Elsewhere Classified)

The employee was attempting to couple a 6 inch discharge hose onto a pump with cam lock fittings and strained his back. The employee reported the injury but did not request medical attention until May 3 at which time a physician was seen and the employee was release to restricted duty which the employer has made available.