Mining Incidents

Minnesota Mining & Manufacturing Company controller

MSHA controller ID: M00221

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Email me when a new MSHA incident is filed at any mine Minnesota Mining & Manufacturing Company controls.

Fatalities
4
Total incidents
1903
Mines on record
7
Years on record
1983–2026
Compliance record
MSHA citations since 2000
2,732
citations
553
significant & substantial
$1,507,101
proposed penalties
$1,103,735
paid to date
73% of proposed penalties paid to date, a $403,366 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
594
inspections on record
20,062
inspection hours
13.6
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.
2,732 citations across 20,062 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$1.5M
proposed penalties
$1.2M
current assessed
$1.1M
paid to date
$57K
outstanding
2,704 assessments are final orders; 37 contested dockets.
As of the most recent assessment on 2026-05-06.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

Top causes

Incident timeline

2026
7
2025
18
2024
31
2023
31
2022
20 (1f)
2021
25
2020
11
2019
17
2018
12
2017
13
2016
15
2015
15
2014
17
2013
19
2012
15
2011
21
2010
14
2009
23
2008
43
2007
36
2006
41 (1f)
2005
35
2004
51
2003
59
2002
61
2001
68 (1f)
2000
48
1999
50
1998
40 (1f)
1997
59
1996
73
1995
12

Operators under this controller

Mines on record

Fatalities under this controller

4 recorded
June 20, 2022 AR · Metal/Non-Metal driller, highwall operator, highwall drill operator Fatality · SLIP OR FALL OF PERSON
3M Company · Fall to lower level, (Not Elsewhere Classified)

Time of accident: 10:00-11:30 Employee was drilling approximately 5' from the highwall. Drill steel was out of the carousel (cause under investigation). They exited the drill to correct the situation and failed to put on fall protection as per company policy and training requirements. It appears that they tripped/slipped/stumbled and fell over the edge. This resulted in a fatality.

May 22, 2006 CA · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler Fatality · SLIP OR FALL OF PERSON
3M Company · Fall from machine

Employee (EE) climbed over platform guardrail onto raised forklift carrying screens, EE and screens fell from forklift 15 to 17 ft; EE landed on his feet, knees buckled, he collapsed to the ground & apparently one or more screens fell onto employee's body-trunk area abdomen region. Co-worker & injured worker moved screen(s) off of EE & EE scooted himself away from screens.

December 4, 2001 NC · Metal/Non-Metal miner, nec Fatality · SLIP OR FALL OF PERSON
3M Company · Fall from scaffolds, walkways, platforms

EMPLOYEE TOOK A "SHORT CUT". EMPLOYEE NEVER USED HIS FALL PROTECTION EQUIPMENT WHILE TAKING HIS "SHORT CUT", THE RESULT WAS THIS EMPLOYEE FALLING OFF A BEAM. THE EE FELL TO HIS DEATH 46' BELOW . EMPLOYEE HAD ALL HIS FALL PROTECTION EQUIPMENTSECURED TO HIS HARNESS AND NEVER ATTEMPTED TO SECURE THEM TO PREVENT THE FALL.

May 4, 1998 AR · Metal/Non-Metal welder (shop) Fatality · POWERED HAULAGE
Minnesota Mining & Manufacturing Company · Caught in, under or between a moving and a stationary object

SWITCH ENGINE THAT WAS BEING CONTROLLED BY REMOTE DEVICE; WAS SWITCHING CARS ONTO TRACK WHERE EE WAS WORKING, CAUSING CAR TO RUN OVER HIM, CRUSHING HIM TO DEATH.

For insurers, brokers, and safety consultants

The full compliance file on Minnesota Mining & Manufacturing Company

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.