American Colloid Company operator
Controlled by
Minerals Technologies Inc
MSHA operator ID: L00006
- Fatalities
- 0
- Total incidents
- 1038
- Mines on record
- 14
- Years on record
- 1983–2026
Compliance record
MSHA citations since 2000
1,493
citations
296
significant & substantial
$682,598
proposed penalties
$563,520
paid to date
83% of proposed penalties paid to date, a $119,078 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
669
inspections on record
15,529
inspection hours
9.6
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.1,493 citations across 15,529 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.$683K
proposed penalties
$564K
current assessed
$564K
paid to date
$0
outstanding
1,463 assessments are final orders; 51 contested dockets.
As of the most recent assessment on 2026-04-28.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDLING OF MATERIALS 375 non-fatal
- SLIP OR FALL OF PERSON 175 non-fatal
- POWERED HAULAGE 117 non-fatal
- MACHINERY 108 non-fatal
- HANDTOOLS (NONPOWERED) 96 non-fatal
- OTHER 38 non-fatal
Incident timeline
2026
1
2025
7
2024
7
2023
13
2022
10
2021
6
2020
4
2019
11
2018
8
2017
11
2016
9
2015
12
2014
11
2013
16
2012
18
2011
18
2010
18
2009
15
2008
15
2007
38
2006
36
2005
31
2004
28
2003
33
2002
32
2001
22
2000
26
1999
30
1998
34
1997
56
1996
48
1995
49
1994
57
1993
35
1992
40
1991
41
1990
42
1989
36
1988
20
1987
10
1986
7
1985
10
1984
29
Mines on record
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The full compliance file on American Colloid 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.