Portable Rock Plant #3 Metal/Non-Metal

Knife River Midwest LLC · Surface

Controlled by MDU Resources Group Inc

Spring Grove, Winneshiek County, IA · Abandoned

MSHA Mine ID: 2103122

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Compliance record

MSHA citations since 2001

citations

significant & substantial

$3,802

proposed penalties

$3,702

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	S&S	Per 1M hrs
2009 Q3	0	0	0
2009 Q2	0	0	0
2008 Q4	614	0	0	0.0
2008 Q3	1,647	0	0	0.0
2008 Q1	0	0	0
2007 Q3	2,828	0	0	0.0
2007 Q2	60	6	1	100000.0
2007 Q1	562	0	0	0.0

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

No fatalities recorded at this mine.

1 on file

June 7, 2006 IA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)

Knife River Midwest LLC · Struck by... (Not Elsewhere Classified)

trimming conveyor belting with utility knife and slipped with blade, lacerating right thigh above knee