Maintenance Employee got their right index finger caught between a roller they were attempting to put in position and the drive gear for the roller.
Sumner Wet Plant: 72 MSHA citations Metal/Non-Metal
Sumner Wet Plant has $22K 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
- 18
- Years on record
- 2013–2026
- Latest incident
- Feb 2026
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This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Sumner Wet Plant has $22K in proposed MSHA penalties and $0 outstanding across 0 contested dockets.
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.ⓘ
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
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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.- Respirable dust, <.1mg19
- Quartz, respirable, >1% Qtz10
- Unlisted Particulate, respirable, <1% Qtz4
Show the individual readings (33)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2025-11-25 | Quartz, respirable, >1% Qtz | 0.24 | 1.41 | 0.17 | Building Repair/Maint. |
| 2025-11-25 | Quartz, respirable, >1% Qtz | 0.19 | Utility Man | ||
| 2025-11-25 | Respirable dust, <.1mg | 0 | Washer Operator | ||
| 2024-04-23 | Respirable dust, <.1mg | 0 | Utility Man | ||
| 2024-04-23 | Respirable dust, <.1mg | 0 | Washer Operator | ||
| 2024-04-23 | Unlisted Particulate, respirable, <1% Qtz | 0.15 | Building Repair/Maint. | ||
| 2022-09-28 | Unlisted Particulate, respirable, <1% Qtz | 0.13 | Utility Man | ||
| 2022-09-28 | Quartz, respirable, >1% Qtz | 0.25 | Building Repair/Maint. | ||
| 2022-09-28 | Unlisted Particulate, respirable, <1% Qtz | 0.13 | Building Repair/Maint. | ||
| 2022-09-28 | Quartz, respirable, >1% Qtz | 0.18 | Utility Man | ||
| 2022-06-28 | Respirable dust, <.1mg | 0 | Washer Operator | ||
| 2022-06-28 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2022-06-28 | Respirable dust, <.1mg | 0 | Utility Man | ||
| 2021-04-15 | Quartz, respirable, >1% Qtz | 0.25 | 0.83 | 0.30 | Mechanic |
| 2021-04-15 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2021-04-15 | Quartz, respirable, >1% Qtz | 0.19 | Utility Man | ||
| 2021-04-15 | Quartz, respirable, >1% Qtz | 0.17 | Washer Operator | ||
| 2020-04-29 | Respirable dust, <.1mg | 0 | Bulldozer Operator | ||
| 2020-04-29 | Respirable dust, <.1mg | 0 | Supervisor, Co. Official | ||
| 2020-04-29 | Respirable dust, <.1mg | 0 | Utility Man | ||
| 2019-05-22 | Unlisted Particulate, respirable, <1% Qtz | 0.6 | Building Repair/Maint. | ||
| 2019-05-22 | Quartz, respirable, >1% Qtz | 0.19 | 0.61 | 0.31 | Utility Man |
| 2019-05-22 | Respirable dust, <.1mg | 0 | Utility Man | ||
| 2017-12-05 | Respirable dust, <.1mg | 0 | Washer Operator | ||
| 2017-12-05 | Respirable dust, <.1mg | 0 | Washer Operator | ||
| 2017-12-05 | Respirable dust, <.1mg | 0 | Utility Man | ||
| 2017-12-05 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2017-01-18 | Respirable dust, <.1mg | 0 | Washer Operator | ||
| 2017-01-18 | Quartz, respirable, >1% Qtz | 0.26 | 0.45 | 0.58 | Washer Operator |
| 2017-01-18 | Respirable dust, <.1mg | 0 | Washer Operator | ||
| 2014-10-28 | Respirable dust, <.1mg | 0 | Washer Operator | ||
| 2014-10-28 | Quartz, respirable, >1% Qtz | 0.16 | 1.14 | 0.14 | Laborer, Bullgang |
| 2014-10-28 | Respirable dust, <.1mg | 0 | Lab Technician |
Sumner Wet Plant recorded 0.00 reportable injury cases per 100 full-time workers in 2025.
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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.| 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 | 0.00 | 0.00 | 0.000 |
| 2021 | 0.00 | 0.00 | 0.000 |
| 2020 | 0.00 | 0.00 | 0.000 |
| 2019 | 0.00 | 0.00 | 0.000 |
| 2018 | 1.17 | 1.17 | 0.000 |
- Canadian Sand And Proppants L.P. 2013 to 2013
- Source Energy Services Proppants LP 2013 to present
| Year | Employees |
|---|---|
| 2026 | 65 |
| 2025 | 66 |
| 2024 | 69 |
| 2023 | 65 |
| 2022 | 58 |
| 2021 | 57 |
| 2020 | 62 |
| 2019 | 67 |
| 2018 | 80 |
| 2017 | 68 |
| 2016 | 66 |
| 2015 | 59 |
| 2014 | 42 |
| 2013 | 16 |
Sumner Wet Plant sits in Barron County, Wisconsin, where the Census mining category is 0.7% of county employment.
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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.ⓘ
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.| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2026 Q2 | 29,632 | 0 | 0 | 0.0 |
| 2026 Q1 | 29,505 | 0 | 0 | 0.0 |
| 2025 Q4 | 28,894 | 0 | 0 | 0.0 |
| 2025 Q3 | 27,597 | 0 | 0 | 0.0 |
| 2025 Q2 | 28,865 | 0 | 0 | 0.0 |
| 2025 Q1 | 29,780 | 1 | 0 | 33.6 |
| 2024 Q4 | 30,566 | 0 | 0 | 0.0 |
| 2024 Q3 | 30,071 | 0 | 0 | 0.0 |
Show 45 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 28,981 | 2 | 0 | 69.0 |
| 2024 Q1 | 29,820 | 0 | 0 | 0.0 |
| 2023 Q4 | 29,092 | 1 | 0 | 34.4 |
| 2023 Q3 | 30,246 | 0 | 0 | 0.0 |
| 2023 Q2 | 32,204 | 0 | 0 | 0.0 |
| 2023 Q1 | 30,764 | 1 | 0 | 32.5 |
| 2022 Q4 | 30,447 | 1 | 0 | 32.8 |
| 2022 Q3 | 29,932 | 5 | 3 | 167.0 |
| 2022 Q2 | 27,701 | 1 | 0 | 36.1 |
| 2022 Q1 | 35,208 | 0 | 0 | 0.0 |
| 2021 Q4 | 27,313 | 6 | 1 | 219.7 |
| 2021 Q3 | 29,368 | 0 | 0 | 0.0 |
| 2021 Q2 | 29,507 | 2 | 1 | 67.8 |
| 2021 Q1 | 30,616 | 0 | 0 | 0.0 |
| 2020 Q4 | 29,768 | 3 | 0 | 100.8 |
| 2020 Q3 | 31,119 | 0 | 0 | 0.0 |
| 2020 Q2 | 31,044 | 0 | 0 | 0.0 |
| 2020 Q1 | 34,181 | 0 | 0 | 0.0 |
| 2019 Q4 | 34,948 | 2 | 0 | 57.2 |
| 2019 Q3 | 39,171 | 0 | 0 | 0.0 |
| 2019 Q2 | 35,195 | 5 | 0 | 142.1 |
| 2019 Q1 | 25,787 | 0 | 0 | 0.0 |
| 2018 Q4 | 35,173 | 0 | 0 | 0.0 |
| 2018 Q3 | 45,779 | 0 | 0 | 0.0 |
| 2018 Q2 | 46,957 | 0 | 0 | 0.0 |
| 2018 Q1 | 43,745 | 0 | 0 | 0.0 |
| 2017 Q4 | 34,289 | 2 | 0 | 58.3 |
| 2017 Q3 | 36,031 | 2 | 2 | 55.5 |
| 2017 Q2 | 34,973 | 4 | 0 | 114.4 |
| 2017 Q1 | 36,106 | 3 | 0 | 83.1 |
| 2016 Q4 | 34,305 | 0 | 0 | 0.0 |
| 2016 Q3 | 30,817 | 5 | 2 | 162.2 |
| 2016 Q2 | 35,807 | 7 | 3 | 195.5 |
| 2016 Q1 | 32,221 | 2 | 1 | 62.1 |
| 2015 Q4 | 27,931 | 0 | 0 | 0.0 |
| 2015 Q3 | 31,820 | 0 | 0 | 0.0 |
| 2015 Q2 | 32,092 | 0 | 0 | 0.0 |
| 2015 Q1 | 30,525 | 4 | 4 | 131.0 |
| 2014 Q4 | 25,001 | 1 | 0 | 40.0 |
| 2014 Q3 | 26,730 | 0 | 0 | 0.0 |
| 2014 Q2 | 24,845 | 1 | 0 | 40.2 |
| 2014 Q1 | 13,367 | 0 | 0 | 0.0 |
| 2013 Q4 | 14,726 | 2 | 0 | 135.8 |
| 2013 Q3 | 7,842 | 0 | 0 | 0.0 |
| 2013 Q2 | 882 | 0 | 0 | 0.0 |
Reportable incidents
18 on file2026 · 1 incident
2018 · 2 incidents
Miner was walking through the plant - Reached to open door into the floc room - left leg slipped from underneath EE causing EE to land on the right patella (knee).
We were contracted to change tires on a 844 John Deere loader. In the process of jacking the equipment up - the blocking and jack failed causing the loader to shift downward and the employee was struck by the loader frame.
2017 · 1 incident
Miner was coming down a flight of stairs - quickly and skipping steps. Miner caught foot on the bottom last couple steps and fell hitting miner's head.
2016 · 4 incidents
Employee was shoveling sand onto a conveyor belt. Employee was cleaning underneath the conveyor. As ee was lifting the sand to put on the conveyor ee felt left shoulder pop. This causing pain in shoulder.
Miner was replacing a valve that was worn out using an adjustable wrench. Miner had 4 bolts to remove - upon EE's last bolt to remove the valve dropped causing a laceration on EE's left forearm.
While changing bucket teeth a metal fragment struck Miner's arm.
While wheeling a 5" roller into place for as a replacement part for a belt press the roller came off the cart causing the individuals finger to be caught between the roller and floor grating. The individual suffered a break in the middle finger.
2015 · 6 incidents
While operating a haul truck the individuals tires slipped into a rut causing his head and neck to have a whiplash type effect.
While setting up water pumps in the mine the individual stepped on unleveled ground casing the individual to twist his knee.
The individual was clearing material from the scalping tower location. While doing this clearing the individual attempted to pick up a large rock to remove it from the area, while lifting this rock it caused the individual back pain.
While reaching for the door handle on the quality control lab the individual received a bee sting on his left hand.
The employee was in an Aerial Lift working to clear a troughing roller utilizing a hammer. The equipment was not locked out at the time of incident causing the hammer to be drawn into the troughing roller also drawing the employee's hand in between the belt and roller. The employee received a hand contusion as a result of the incident.
The individual was carrying a 5 gallon fuel can to refill a heater located in the second level of the scalping tower. This individual reports slipping on ice while accessing the tower to refuel the heaters.
2014 · 3 incidents
While working in a Scissor Lift cutting a threaded rod with a reciprocating saw, the saw blade caught causing the saw to kick back impacting the operator's face/upper lip region causing a cut/laceration.
Driver was adjusting tailgate chain and box was slightly raised, chain moved pinching his two fingers.
This individual was cleaning out next to a conveyer when a rock struck him in the back of the neck causing some pain in the shoulder along with numbness in the right arm.
2013 · 1 incident
This individual was walking under a out of service conveyer and ducked to avoid contact with the conveyer the individual used poor body mechanics resulted in a twisting motion causing a minor back strain. This did not cause damage to the mining operation.