A. Lindberg & Sons, Inc.- Drill Operation 1 has had no fatalities among 2 reportable incidents since 1988. MSHA has proposed $604 in penalties since 2025.
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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: 16 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
A. Lindberg & Sons, Inc.- Drill Operation 1 has $604 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.
$604
proposed penalties
$604
current assessed
$604
paid to date
$0
outstanding
4 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-09-30.
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
2
2025
2
1999
1
1998
2
1997
4
1996
4
1995
4
1994
3
1993
3
1992
3
1991
5
1990
5
1989
5
1988
6
1987
4
1986
6
1985
8
1984
15
1983
11
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.
A. Lindberg & Sons, Inc.- Drill Operation 1 sits in Marquette County, Michigan, where the Census mining category is 2.7% 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.
Marquette County, Michigan · Population 66,430
2.7%
Mining share of county employment
$64,675
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; earlier incidents are counted but not rate-adjusted, though reported hours reach back to 1983. 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
2026 Q2
1,043
0
0
0.0
2026 Q1
690
0
0
0.0
2025 Q4
480
0
0
0.0
2025 Q3
341
4
0
11730.2
No fatalities recorded at this mine.
Reportable incidents
2 on file
1995 · 1 incident
April 24, 1995MI · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)
EE WAS PUTTING A BOLT IN A HAND RAILING. THE HAND RAILING CAME OFF AND THE BOLT PINCHED HIS FINGERS. HIS RING, MIDDLE AND LITTLE FINGER WAS CUT, AND STITCHES WERE REQUIRED.
Show 1 earlier incidentsHide earlier incidents
1988 · 1 incident
December 21, 1988MI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanMACHINERY