Mining Incidents

PIONEER JAW/ROLL: 6 MSHA citations Metal/Non-Metal

Buffalo Bituminous Inc · Surface
Controlled by MDU Resources Group Inc
Buffalo, MN, Wright County, MN  ·  Abandoned
MSHA Mine ID: 2103117

PIONEER JAW/ROLL has $1K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2001
6
citations
2
significant & substantial
$1,152
proposed penalties
$1,152
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
5
inspections on record
41
inspection hours
n/a
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 41 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

PIONEER JAW/ROLL has $1K in proposed MSHA penalties and $0 outstanding across 0 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
6 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2001-07-31.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
33.3%
significant & substantial
0.0%
high negligence or reckless
33.3%
reasonably likely or greater
16.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 16.7% low, 83.3% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. Buffalo Bituminous Inc 1995 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2003 0
2002 1
2001 1
2000 3
Source: MSHA quarterly employment and production, updated weekly.

PIONEER JAW/ROLL sits in Wright County, Minnesota, where the Census mining category is 0.2% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Wright County, Minnesota · Population 145,270
0.2%
Mining share of county employment
$106,666
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2003 Q1 0 0 0
2002 Q4 0 0 0
2002 Q3 0 0 0
2002 Q2 750 0 0 0.0
2002 Q1 0 0 0
2001 Q4 0 0 0
2001 Q3 0 6 2
2001 Q2 748 0 0 0.0
Show 5 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2001 Q1 0 0 0
2000 Q4 602 0 0 0.0
2000 Q3 1,826 0 0 0.0
2000 Q2 1,263 0 0 0.0
2000 Q1 80 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.