Mining Incidents

Weyerhaeuser Operations: 57 MSHA citations Metal/Non-Metal

Weyerhaeuser, Rusk County, WI  ·  Active
MSHA Mine ID: 4703703

Weyerhaeuser Operations has $9K 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
11
Years on record
2014–2022
Latest incident
Jan 2022
Compliance record
MSHA citations since 2014
57
citations
10
significant & substantial
$8,699
proposed penalties
$8,699
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2014
41
inspections on record
872
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: 872 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Weyerhaeuser Operations has $9K 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.
$9K
proposed penalties
$9K
current assessed
$9K
paid to date
$0
outstanding
57 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-11-24.
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.
17.5%
significant & substantial
0.0%
high negligence or reckless
17.5%
reasonably likely or greater
56.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 56.1% low, 43.9% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2025-11-25
33%
of limit-tested samples over the exposure limit
55
samples
36
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz3512 over
  • Respirable dust, <.1mg19
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (55)
Date Contaminant Concentration Limit Conc / limit Occupation
2021-03-09 Quartz, respirable, >1% Qtz 1.03 0.65 1.58 Mechanic
2017-12-06 Quartz, respirable, >1% Qtz 0.8 0.46 1.74 Mechanic
2017-12-06 Quartz, respirable, >1% Qtz 1.15 0.55 2.09 Utility Man
2017-10-24 Quartz, respirable, >1% Qtz 0.61 0.44 1.39 Utility Man
2017-10-24 Quartz, respirable, >1% Qtz 0.98 0.43 2.28 Utility Man
2017-08-30 Quartz, respirable, >1% Qtz 1.27 0.49 2.59 Utility Man
2017-08-30 Quartz, respirable, >1% Qtz 1.68 0.57 2.95 Dry Screen Plant Operator
2017-08-30 Quartz, respirable, >1% Qtz 1.99 0.56 3.55 Utility Man
2015-08-05 Quartz, respirable, >1% Qtz 1.74 0.46 3.78 Utility Man
2015-04-15 Quartz, respirable, >1% Qtz 2.05 0.48 4.27 Utility Man
2015-04-15 Quartz, respirable, >1% Qtz 2.57 0.52 4.94 Utility Man
2015-04-15 Quartz, respirable, >1% Qtz 2.07 0.54 3.83 Utility Man
2025-11-25 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-11-25 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2025-11-25 Quartz, respirable, >1% Qtz 0.26 0.54 0.48 Dry Screen Plant Operator
2025-11-25 Quartz, respirable, >1% Qtz 0.18 0.76 0.24 Front-end Loader Operator
2025-03-12 Quartz, respirable, >1% Qtz 0.18 0.52 0.35 Utility Man
2025-03-12 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2023-12-12 Quartz, respirable, >1% Qtz 0.13 0.44 0.30 Dry Screen Plant Operator
2023-12-12 Respirable dust, <.1mg 0 Mechanic
2023-12-12 Respirable dust, <.1mg 0 Utility Man
2023-12-12 Respirable dust, <.1mg 0 Supervisor, Co. Official
2022-11-22 Quartz, respirable, >1% Qtz 0.47 0.63 0.75 Sand Filler (Dry)
2022-11-22 Respirable dust, <.1mg 0 Building Repair/Maint.
2022-11-22 Nuisance dust, respirable, <1% Qtz 0.2 10 0.02 Utility Man
2022-11-22 Respirable dust, <.1mg 0 Supervisor, Co. Official
2021-11-30 Quartz, respirable, >1% Qtz 0.16 0.41 0.39 Sand Filler (Dry)
2021-11-30 Quartz, respirable, >1% Qtz 0.32 0.35 0.91 Dry Screen Plant Operator
2021-11-30 Quartz, respirable, >1% Qtz 0.47 0.67 0.70 Utility Man
2021-04-20 Quartz, respirable, >1% Qtz 0.23 0.52 0.44 Mechanic
2021-03-09 Quartz, respirable, >1% Qtz 0.22 0.48 0.46 Sampler, Dust
2021-03-09 Quartz, respirable, >1% Qtz 0.22 0.31 0.71 Complete Load-Haul-Dump
2021-03-09 Respirable dust, <.1mg 0 Cleanup Man
2019-10-16 Quartz, respirable, >1% Qtz 0.15 0.46 0.33 Lab Technician
2019-10-16 Respirable dust, <.1mg 0 Utility Man
2019-10-16 Quartz, respirable, >1% Qtz 0.34 0.66 0.52 Mechanic
2019-10-16 Respirable dust, <.1mg 0 Utility Man
2019-01-30 Respirable dust, <.1mg 0 Sand Filler (Dry)
2019-01-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-01-30 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2018-01-09 Respirable dust, <.1mg 0 Utility Man
2018-01-09 Respirable dust, <.1mg 0 Mechanic
2017-10-24 Quartz, respirable, >1% Qtz 0.22 0.5 0.44 Dry Screen Plant Operator
2016-03-08 Quartz, respirable, >1% Qtz 0.23 0.29 0.79 Laborer, Bullgang
2016-03-08 Respirable dust, <.1mg 0 Laborer, Bullgang
2016-03-08 Respirable dust, <.1mg 0 Laborer, Bullgang
2016-03-08 Respirable dust, <.1mg 0 Lab Technician
2015-11-24 Quartz, respirable, >1% Qtz 0.26 0.31 0.84 Utility Man
2015-11-24 Quartz, respirable, >1% Qtz 0.35 0.42 0.83 Utility Man
2015-08-05 Quartz, respirable, >1% Qtz 0.19 0.35 0.54 Utility Man
2015-08-05 Quartz, respirable, >1% Qtz 0.7 0.81 0.86 Utility Man
2014-02-19 Quartz, respirable, >1% Qtz 0.27 0.88 0.31 Laborer, Bullgang
2014-02-19 Quartz, respirable, >1% Qtz 0.16 0.36 0.44 Lab Technician
2014-02-19 Quartz, respirable, >1% Qtz 0.29 0.3 0.97 Lab Technician
2014-02-19 Quartz, respirable, >1% Qtz 0.2 0.35 0.57 Dry Screen Plant Operator
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.

Weyerhaeuser Operations recorded 0.00 reportable injury cases per 100 full-time workers in 2025.

Injury rate, 2025
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Wisconsin, metal and nonmetal mining averaged 1.80 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2025 * 0.00 0.00 0.000
2024 * 0.00 0.00 0.000
2023 * 0.00 0.00 0.000
2022 * 4.20 4.20 0.000
2021 * 0.00 0.00 0.000
2020 * 0.00 0.00 0.000
2019 * 0.00 0.00 0.000
2018 5.47 1.82 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Source Energy Services Proppants LP. 2013 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 31
2025 33
2024 33
2023 29
2022 20
2021 21
2020 25
2019 30
2018 57
2017 56
2016 47
2015 67
2014 54
2013 19
Source: MSHA quarterly employment and production, updated weekly.

Weyerhaeuser Operations sits in Rusk County, Wisconsin, where the Census mining category is 0.7% 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.
Rusk County, Wisconsin · Population 14,146
0.7%
Mining share of county employment
$58,322
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
2026 Q2 11,600 0 0 0.0
2026 Q1 12,050 0 0 0.0
2025 Q4 13,494 1 0 74.1
2025 Q3 12,573 0 0 0.0
2025 Q2 13,562 0 0 0.0
2025 Q1 14,059 2 1 142.3
2024 Q4 12,918 2 0 154.8
2024 Q3 12,190 0 0 0.0
Show 43 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 14,577 0 0 0.0
2024 Q1 14,032 1 0 71.3
2023 Q4 13,381 1 0 74.7
2023 Q3 12,073 0 0 0.0
2023 Q2 13,238 0 0 0.0
2023 Q1 14,219 2 0 140.7
2022 Q4 11,163 0 0 0.0
2022 Q3 10,454 0 0 0.0
2022 Q2 10,649 2 0 187.8
2022 Q1 15,351 0 0 0.0
2021 Q4 11,328 1 0 88.3
2021 Q3 11,859 0 0 0.0
2021 Q2 11,223 0 0 0.0
2021 Q1 11,524 2 0 173.6
2020 Q4 11,881 0 0 0.0
2020 Q3 13,698 1 0 73.0
2020 Q2 11,212 0 0 0.0
2020 Q1 17,224 1 0 58.1
2019 Q4 9,952 1 0 100.5
2019 Q3 15,155 0 0 0.0
2019 Q2 17,542 2 0 114.0
2019 Q1 18,472 3 1 162.4
2018 Q4 16,025 0 0 0.0
2018 Q3 32,306 1 0 31.0
2018 Q2 31,417 0 0 0.0
2018 Q1 29,979 2 0 66.7
2017 Q4 29,044 3 1 103.3
2017 Q3 27,818 5 2 179.7
2017 Q2 22,892 0 0 0.0
2017 Q1 28,791 2 0 69.5
2016 Q4 23,554 0 0 0.0
2016 Q3 21,749 0 0 0.0
2016 Q2 23,205 0 0 0.0
2016 Q1 26,133 1 0 38.3
2015 Q4 25,122 0 0 0.0
2015 Q3 33,925 3 0 88.4
2015 Q2 33,207 8 2 240.9
2015 Q1 36,078 0 0 0.0
2014 Q4 32,863 0 0 0.0
2014 Q3 31,178 0 0 0.0
2014 Q2 30,434 4 0 131.4
2014 Q1 23,943 2 1 83.5
2013 Q4 4,044 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

11 on file

2022 · 1 incident

January 10, 2022 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON

IP stated was coming down a ladder and lost footing. Slipped and landed on feet. Reported foot pain.

2018 · 3 incidents

September 30, 2018 WI · Metal/Non-Metal utility man, shift tech, service/dump truck operator POWERED HAULAGE
Source Energy Services Proppants LP. · Caught in, under or between running or meshing objects

Miner was cleaning under conveyor with a machine (Vermeer)- when lifting bucket, bucket hit another conveyor causing the machine (Vermeer) to kick forward and up pinching miners hand between Vermeer controls and bottom of conveyor.

May 30, 2018 WI · Metal/Non-Metal utility man, shift tech, service/dump truck operator HANDLING OF MATERIALS
Source Energy Services Proppants LP. · Struck by... (Not Elsewhere Classified)

Employee was removing the hose from the Hurricane 755 Industrial Vacuum, when EE was pulling on it the hose came lose the hose hit EE in the face causing EE to have to have 4 stitches above EE's left eye.

April 30, 2018 WI · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
Source Energy Services Proppants LP. · Struck against a moving object

Employee was driving the JLG when they hit a pot hole causing them to bounce off the "safety foot peddle". This caused them to come to a sudden stop straining their back. Employee was brought in for evaluation and returned to work with restrictions, no lost time.

2017 · 4 incidents

September 13, 2017 WI · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Source Energy Services Proppants LP. · Over-exertion in pulling or pushing objects

Miner was closing the doors on a Rotex machine. While pulling down on the latches for the door the miner felt pressure and pain in the shoulder and forearm.

February 3, 2017 WI · Metal/Non-Metal master mechanic, foreman, supervisor HANDLING OF MATERIALS
Source Energy Services Proppants LP. · Over-exertion in lifting objects

A large piece of frozen sand caught on half on the belt and half off causing plugging. Employee removed the chunk of ice off the belt and placed on the ground. Employee did not feel any pain, but yet felt something that wasn't right in the groin area.

January 12, 2017 WI · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant SLIP OR FALL OF PERSON
Source Energy Services Proppants LP. · Fall to the walkway or working surface

Miner was walking from one building to the adjacent building when miner lost EE's footing and slipped and fell. Miner was taken in to the emergency room due to pain in EE's left elbow area.

2016 · 1 incident

January 18, 2016 WI · Metal/Non-Metal utility man, shift tech, service/dump truck operator HANDLING OF MATERIALS
Source Energy Services Proppants LP. · Over-exertion in lifting objects

While lifting a 20# LP Tank the individual felt a pain in the lower back region. This individual was then suffering from a lower back strain.

2015 · 1 incident

January 14, 2015 WI · Metal/Non-Metal utility man, shift tech, service/dump truck operator HANDLING OF MATERIALS
Source Energy Services Proppants LP. · Over-exertion in lifting objects

The miner was injured while shoveling sand into a 5 gallon bucket and lifting the bucket from feet level to eye level. Contributing factors include twisting and bending while lifting the bucket.

2014 · 1 incident

December 19, 2014 WI · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant NONPOWERED HAULAGE
Source Energy Services Proppants LP. · Over-exertion (Not Elsewhere Classified)

While moving a wheelbarrow to empty it the individual twisted/strained his lower back. Stated that the concrete was covered with sand. This incident was not reported to safety until 12/29/2014.