Mining Incidents

Hermosa Mine: 193 MSHA citations Metal/Non-Metal

South32 Hermosa Inc. · Underground
Controlled by South32
Patagonia, Santa Cruz County, AZ  ·  NonProducing
MSHA Mine ID: 0203398

Hermosa Mine has $108K in proposed MSHA penalties and $151 outstanding across 14 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
44
Years on record
2018–2026
Latest incident
May 2026
Compliance record
MSHA citations since 2018
193
citations
26
significant & substantial
$107,917
proposed penalties
$88,704
paid to date
82% of proposed penalties paid to date, a $19,213 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2018
58
inspections on record
2,952
inspection hours
6.5
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.
193 citations across 2,952 inspection hours.
Source: MSHA inspections data, updated weekly.

Hermosa Mine has $108K in proposed MSHA penalties and $151 outstanding across 14 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.
$108K
proposed penalties
$89K
current assessed
$89K
paid to date
$151
outstanding
176 assessments are final orders; 14 contested dockets.
Of $30K in penalties contested before the Commission, $11K was upheld in final decisions.
As of the most recent assessment on 2026-05-19.
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.
13.5%
significant & substantial
8.3%
high negligence or reckless
13.0%
reasonably likely or greater
20.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.5% none, 13.0% low, 78.1% moderate, 8.3% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
22 citations taken to the federal commission · 11% of citations on record
  • Settled 20 · 91%
  • Stood as issued 1 · 5%
  • Still open 1 · 5%
31%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 13 decided S&S contests · industry: 79%
63%
Penalty reduction in decided contests
$30K proposed, $11K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2026-08-12.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
WEST 2019-0186 Settlement Miller 2019 $17K → $4K
WEST 2019-0231 Settlement Miller 2019 $6K → $4K
WEST 2025-0258 Settlement Simonton 2026 $2K → $418
WEST 2019-0495 Settlement Miller 2019 $1K → $675
WEST 2019-0302 Settlement Miller 2019 $902 → $451
WEST 2019-0055 Settlement Miller 2019 $790 → $625
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2025-11-05
20%
of limit-tested samples over the exposure limit
17
samples
5
limit-tested
Most sampled contaminants
  • Diesel particulate (total carbon)41 over
  • Respirable dust, <.1mg8
  • Unlisted Particulate, respirable, <1% Qtz3
  • Quartz, respirable, >1% Qtz2
Show the individual readings (27)
Date Contaminant Concentration Limit Conc / limit Occupation
2018-12-12 EC @ 160 225 160 1.41 Gathering Arm Operator
2018-12-12 TC @ 160 316 160 1.98 Gathering Arm Operator
2025-11-05 Respirable dust, <.1mg 0 Skip Dumper, Toploader, Tipple Operator
2025-11-05 Quartz, respirable, >1% Qtz 0.37 1.59 0.23 Miner, Shaft Sinking
2025-11-05 Respirable dust, <.1mg 0 Miner, Shaft Sinking
2025-09-03 TC from EC @ 160 0 160 0.00 Mucking Mach. Operator
2025-09-03 TC @ 160 0 160 0.00 Mucking Mach. Operator
2025-09-03 EC @ 160 0 160 0.00 Mucking Mach. Operator
2025-09-03 ORGANIC CARBON 0 Mucking Mach. Operator
2025-09-03 TC from EC @ 160 0 160 0.00 Truck Driver
2025-09-03 EC @ 160 0 160 0.00 Truck Driver
2025-09-03 TC @ 160 0 160 0.00 Truck Driver
2025-09-03 ORGANIC CARBON 0 Truck Driver
2021-07-21 Respirable dust, <.1mg 0 Scraper Operator
2021-07-21 Quartz, respirable, >1% Qtz 0.21 Truck Driver
2020-02-25 Respirable dust, <.1mg 0 Lab Technician
2020-02-25 Respirable dust, <.1mg 0 Supervisor, Co. Official
2020-02-25 Respirable dust, <.1mg 0 Lab Technician
2020-02-25 Respirable dust, <.1mg 0 Lab Technician
2020-02-25 Respirable dust, <.1mg 0 Lab Technician
2018-12-12 TC from EC @ 160 0 160 0.00 Gathering Arm Operator
2018-12-12 Unlisted Particulate, respirable, <1% Qtz 0.2 Drill Operator, Jumbo Perc.
2018-12-12 Unlisted Particulate, respirable, <1% Qtz 0.26 Roof Bolter, Rock
2018-12-12 Unlisted Particulate, respirable, <1% Qtz 0.25 Truck Driver
2018-12-12 TC @ 160 59 160 0.37 Truck Driver
2018-12-12 EC @ 160 40 160 0.25 Truck Driver
2018-12-12 TC from EC @ 160 0 160 0.00 Truck Driver
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.

Hermosa Mine 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 Arizona, metal and nonmetal mining averaged 1.81 cases per 100 workers that year.
Year total case rate days-away fatal
2025 0.00 0.00 0.000
2024 0.00 0.00 0.000
2023 1.65 0.00 0.000
2022 * 2.29 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 5.89 2.94 0.000
2019 * 4.23 0.00 0.000
2018 1.82 0.91 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. South32 Hermosa Inc. 2018 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 171
2025 158
2024 95
2023 56
2022 44
2021 38
2020 35
2019 47
2018 141
Source: MSHA quarterly employment and production, updated weekly.

Hermosa Mine sits in Santa Cruz County, Arizona, where the Census mining category is 0.9% 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.
Santa Cruz County, Arizona · Population 48,209
0.9%
Mining share of county employment
$53,614
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 130,311 5 0 38.4
2026 Q1 123,615 0 0 0.0
2025 Q4 95,897 0 0 0.0
2025 Q3 128,871 2 0 15.5
2025 Q2 149,112 1 0 6.7
2025 Q1 103,027 1 1 9.7
2024 Q4 62,400 4 0 64.1
2024 Q3 59,286 1 0 16.9
Show 26 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 38,190 0 0 0.0
2024 Q1 32,223 10 2 310.3
2023 Q4 29,308 0 0 0.0
2023 Q3 36,151 0 0 0.0
2023 Q2 29,416 0 0 0.0
2023 Q1 26,098 0 0 0.0
2022 Q4 23,457 0 0 0.0
2022 Q3 23,489 0 0 0.0
2022 Q2 21,013 0 0 0.0
2022 Q1 19,509 0 0 0.0
2021 Q4 18,756 0 0 0.0
2021 Q3 19,592 2 0 102.1
2021 Q2 19,690 5 1 253.9
2021 Q1 16,789 0 0 0.0
2020 Q4 19,394 1 0 51.6
2020 Q3 10,468 0 0 0.0
2020 Q2 11,588 0 0 0.0
2020 Q1 26,497 0 0 0.0
2019 Q4 24,007 2 0 83.3
2019 Q3 23,875 0 0 0.0
2019 Q2 23,553 0 0 0.0
2019 Q1 23,032 2 1 86.8
2018 Q4 30,447 1 1 32.8
2018 Q3 32,651 1 0 30.6
2018 Q2 25,977 0 0 0.0
2018 Q1 130,333 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

44 on file

2026 · 9 incidents

May 22, 2026 AZ · Metal/Non-Metal shaftcrew, shaft repair, skip tender, station tender MACHINERY
South32 Hermosa Inc. · Caught in, under or between a moving and a stationary object

Employee was assisting with landing a tugger on the 3680 level. Two employees were pulling the tugger on to the level as it was lowered, two employees pulled from one side of the tugger and a third employee was pushing on the opposite side of the tugger. The tugger rolled over in the rigging, trapping and breaking the right arm of the employee between the tugger and the rigging.

May 1, 2026 AZ · Metal/Non-Metal shaftcrew, shaft repair, skip tender, station tender SLIP OR FALL OF PERSON
South32 Hermosa Inc. · Fall to the walkway or working surface

Employee slipped and fell on their left knee while pouring a concrete slab. Injury was diagnosed as a sprain, and the employee was prescribed anti-inflammatory medication.

April 15, 2026 AZ · Metal/Non-Metal HOISTING
South32 Hermosa Inc. · Accident type, without injuries

A programming issue resulted in the temporary suspension of all hoisting operations at the Main Shaft.

March 30, 2026 AZ · Metal/Non-Metal miner, prospector, nec HANDTOOLS (NONPOWERED)
South32 Hermosa Inc. · Struck by... (Not Elsewhere Classified)

The injured employee was attempting to remove an O-ring seal while repairing a jackleg. The pick that the employee was using to remove the O-ring slipped and punctured the thumb on the employees gloved Left hand. The puncture became infected, incisions were made in the thumb in order to clean the wound, the employee also has been receiving IV antibiotics.

March 19, 2026 AZ · Metal/Non-Metal HOISTING
South32 Hermosa Inc. · Accident type, without injuries

At approximately 12:54 am, an electrical component failure caused a power outage at the shaft pad.

March 19, 2026 AZ · Metal/Non-Metal HOISTING
South32 Hermosa Inc. · Accident type, without injuries

At 09:28 hours, we experienced a loss of power from the generator plant, resulting in an immediate power outage at the shaft pad.

March 11, 2026 AZ · Metal/Non-Metal HOISTING
South32 Hermosa Inc. · Accident type, without injuries

At approximately 9:30 am, an electrical component failure caused a power outage at the shaft pad.

March 8, 2026 AZ · Metal/Non-Metal HOISTING
South32 Hermosa Inc. · Accident type, without injuries

At 2:43pm on 3/8/2026 both hoists lost power. 12 miners were working in the vent shaft, 7 miners were working in the main shaft. Power was re-established to the vent shaft at 3:31PM. Power was re-established to the main shaft at 3:45. No injuries sustained due to loss of power.

February 28, 2026 AZ · Metal/Non-Metal electrician, lineman MACHINERY
South32 Hermosa Inc. · Caught in, under or between running or meshing objects

While the employee was cutting unistrut with a handheld band saw the saw unexpectedly shifted and contacted their left index finger resulting in a laceration. The employee received two stitches.

2025 · 9 incidents

December 27, 2025 AZ · Metal/Non-Metal shaftcrew, shaft repair, skip tender, station tender HANDLING OF MATERIALS
South32 Hermosa Inc. · Over-exertion (Not Elsewhere Classified)

Employee noticed a lump above their belly button. After being seen at urgent care the employee was diagnosed with an umbilical hernia.

October 28, 2025 AZ · Metal/Non-Metal HOISTING
South32 Hermosa Inc. · Accident type, without injuries

An unanticipated power disruption occurred on the Shaft Pad, impacting both the Main Shaft and Ventilation Shaft operations.

July 28, 2025 AZ · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
South32 Hermosa Inc. · Over-exertion in lifting objects

While assisting to replace a pulley on the batch plant, an employee strained their back. The employee was holding the pulley in place with both arms above their head, while another employee secured it in place. Once they finished, the employee began to notice middle and lower back pain. The employee immediately reported it to supervision.

June 7, 2025 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
South32 Hermosa Inc. · Fall from machine

Water truck driver was discovered to be injured by another miner at the water tower. The injured driver didn't remember how EE was injured, and there were no witnesses. It's suspected the driver either fell from ground level or off the rear access ladder of the truck. The second scenario is believed to be more likely due to the nature and severity of the drivers injuries.

May 29, 2025 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
South32 Hermosa Inc. · Fall onto or against objects

While dismounting a Caterpillar D6 Dozer on the right side, miner lost EE's grip on the handhold and fell onto the right u-frame support beam resulting in three fractured ribs.

February 18, 2025 AZ · Metal/Non-Metal steel worker, iron metal worker, iron worker HANDLING OF MATERIALS
South32 Hermosa Inc. · Caught in, under or between a moving and a stationary object

While an employee was placing the shackle of the man basket onto the hook of the 1300 crane for the daily load test, the hook spun, pinching the fingertip of the middle finger of the employee's right hand. This caused bruising and bleeding.

January 30, 2025 AZ · Metal/Non-Metal welder (non-shop) HANDLING OF MATERIALS
South32 Hermosa Inc. · Rubbed or abraded

During the process of installing concrete metal decking at the Main Shaft muck bin, the IP had a hold of one with both hands. When the IP began to move, the metal slipped from their hand right ring finger.

January 25, 2025 AZ · Metal/Non-Metal bull gang foreman, labor foreman, leadman, section foreman, shift boss SLIP OR FALL OF PERSON
South32 Hermosa Inc. · Fall from ladders

While installing services in the Vent Shaft an employee (EE) was on an extension ladder, tightening the band on a section of Shaft Vent Ducting. The EE detached their lanyard from the anchor above and proceeded to descend the ladder. While descending the EE lost their footing and fell approximately 10 feet. The EE landed on their right side resulting in injuries.

January 19, 2025 AZ · Metal/Non-Metal electrician, lineman HANDLING OF MATERIALS
South32 Hermosa Inc. · Struck by falling object

Two electricians were installing a metal stand (approx. 300 LBS.) adjacent to the surface shaft ventilation fans. While the electrical stand was being positioned to secure on the ventilation pad, the load became unstable. The electricians attempted to stabilize the stand but were unable to prevent it from falling. When the rack fell, the employee's right pinky finger was lacerated.

2024 · 4 incidents

November 20, 2024 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
South32 Hermosa Inc. · Caught in, under or between a moving and a stationary object

The IP grabbed the battery from the handle on the front and began to slide it out of the battery box. The battery started to teeter, and IP tried to reach for the back handle and left middle finger was smashed on the top of the battery box. IP was taken to onsite medical clinic and then taken by VG management to local hospital, where IP received 2 stitches in left middle finger.

November 5, 2024 AZ · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
South32 Hermosa Inc. · Fall from machine

Operator was dismounting a Caterpillar D6 dozer and EE believes either mis-stepped or stumbled and fell to the ground. The dozer was immediately inspected by supervision to see if there were slippery conditions such as mud or grease, and it was found to be clean.

October 9, 2024 AZ · Metal/Non-Metal steel worker, iron metal worker, iron worker HANDTOOLS (NONPOWERED)
South32 Hermosa Inc. · Struck against stationary object

Employee was working on the muck bin wall area inserting wedges. As they swung their hammer, their index finger made contact with the steel causing injury.

February 1, 2024 AZ · Metal/Non-Metal carpenter MACHINERY
South32 Hermosa Inc. · Struck by... (Not Elsewhere Classified)

Incident allegedly occurred while attempting to cut a 2x6 with a turnbuckle attached. The saw bound up causing it to kickback and contacting EE's middle finger on the right hand that EE was holding the lumber with. The event was not reported until many days later.

2023 · 6 incidents

December 13, 2023 AZ · Metal/Non-Metal drill helper HANDLING OF MATERIALS
South32 Hermosa Inc. · Caught in, under or between a moving and a stationary object

The fingertip on the left ring finger was broken when the helper placed their hand in a pinch point on the mammoth backup tongs. Fingertip was pinched when the operator retracted tongs.

November 29, 2023 AZ · Metal/Non-Metal carpenter OTHER
South32 Hermosa Inc. · Struck by flying object

EE felt irritation to left eye after wind blew debris on 11/30. Was taken to Dr. on 12/1 and diagnosed with corneal abrasion and Rx'd antibiotic drops to prevent infection.

October 10, 2023 AZ · Metal/Non-Metal bull gang foreman, labor foreman, leadman, section foreman, shift boss SLIP OR FALL OF PERSON
South32 Hermosa Inc. · Fall from ladders

The employee working in the vent shaft on a work deck connected to the EFCO forms was injured. EE was standing on a platform ladder 8' off the work deck when EE and the ladder tipped over.

October 8, 2023 AZ · Metal/Non-Metal drill helper HANDLING OF MATERIALS
South32 Hermosa Inc. · Over-exertion in lifting objects

Driller Assistant was attempting to lift one end of a section of NQ rod when they felt a pain in their lower abdomen. Employee was taken to local hospital for evaluation and diagnosed with a hernia.

September 24, 2023 AZ · Metal/Non-Metal drill helper MACHINERY
South32 Hermosa Inc. · Struck by... (Not Elsewhere Classified)

Driller assistant was mixing mud when eye felt itchy, the employee used a damp paper towel to wipe the eye. Employee was instructed to wash hands and use clean water and a paper towel to wipe out the mud from the eye.

August 1, 2023 AZ · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management HANDLING OF MATERIALS
South32 Hermosa Inc. · Struck by flying object

Particulate matter discharged through HVAC vent caused irritation to the right eye of a nearby employee. Employee was evaluated by onsite clinic. Due to continuing irritation and discomfort, employee was treated at Urgent Care. Diagnosis was minor scratch to right eye. Medication was prescribed.

2022 · 7 incidents

September 14, 2022 AZ · Metal/Non-Metal drill helper EXPLODING VESSELS UNDER PRESSURE
South32 Hermosa Inc. · Contact with hot objects or substances

Individual was done using the heated pressure washer and was wrapping up the hose. At this time the connection between the pressure washer and hose failed. This resulted in individual being splashed with hot water causing a minor burn to groin area.

August 28, 2022 AZ · Metal/Non-Metal driller, highwall operator, highwall drill operator SLIP OR FALL OF PERSON
South32 Hermosa Inc. · Fall to the walkway or working surface

While moving dill casing, injured person (IP) was spotting the forklift. While walking from one side of the forklift to the other, the IP tripped on the un-level ground and fell. IP put EE's arm out to brace for the fall and resulted in injury to left shoulder.

July 19, 2022 AZ · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management MACHINERY
South32 Hermosa Inc. · Inhalation of radiations, caustics, toxic and noxious substances

Upon completion of drilling observation (sampling/logging), employee noticed loss of feeling of tongue/odd sensation in mouth. Drilling/sampling may have created dust which may have caused reaction. Employee reported to site medic. Employee later received diagnostic testing. Days later, employee reported chest pain. On 8/10, employee told HSE Manager prescriptions were received.

April 1, 2022 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
South32 Hermosa Inc. · Struck by... (Not Elsewhere Classified)

Miner was disassembling rubber suction hose sections from the hydro vac tank. After unlocking a cam lock on a fitting and pulling on a section of pipe, the pipe and fitting suddenly released and the fitting struck the miner in the mouth/chin - resulting in a chip in the left upper central incisor.

March 3, 2022 AZ · Metal/Non-Metal steel worker, iron metal worker, iron worker HANDLING OF MATERIALS
South32 Hermosa Inc. · Over-exertion in pulling or pushing objects

Employee was pulling a crane mat from under outrigger when EE felt a pain in EE's right bicep. Diagnosed with right bicep tear. No medical care or restrictions required until surgery on 08/25/2022.

January 21, 2022 AZ · Metal/Non-Metal superintendent OTHER
South32 Hermosa Inc. · (Not Elsewhere Classified)

Employee had a non-work related cardiac event. Employee was transported for treatment. Released from hospital on 1/23/21 without impairment.

January 20, 2022 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
South32 Hermosa Inc. · Over-exertion (Not Elsewhere Classified)

Employee reported back pain, unable to stand upright when resuming work after lunch. Muscle strain or sprain suspected by medical review. Restricted duty recommended.

2021 · 2 incidents

November 12, 2021 AZ · Metal/Non-Metal drill helper POWERED HAULAGE
South32 Hermosa Inc. · Struck against a moving object

At the start of the shift, a crew pickup was backing into the drilling area and made contact with a hydraulic out-rigger. This was a low speed event and minor property damage resulted with the right rear truck bumper being dented and no damage to the out-rigger. Individual injured was a passenger in the truck and reported being jolted from the event.

June 19, 2021 AZ · Metal/Non-Metal drill helper HANDTOOLS (NONPOWERED)
South32 Hermosa Inc. · Struck by falling object

Miner was struck in the mouth, chipping the RF top tooth, while dumping core tube as a small piece of core fell from above.

2020 · 2 incidents

November 29, 2020 AZ · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
South32 Hermosa Inc. · Over-exertion in lifting objects

While moving core boxes from pallet jack to rolling tables, employee felt a radiating pain in the back. Employee was evaluated by site medic and released back to duty. Due to lingering pain the following morning, employee was sent to Urgent Care for evaluation. Restricted Duty with lifting restrictions was recommended by Clinician. A follow-up appointment was scheduled.

February 20, 2020 AZ · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
South32 Hermosa Inc. · Over-exertion in lifting objects

Employee reported on 2/21/20 that EE was unable to work due to an injury sustained the previous day, possibly the result of exertion while moving loaded core boxes or maneuvering a pallet jack loaded with drill core. Employee was seen at on-site clinic for evaluation followed by a visit to Urgent Care.

2019 · 3 incidents

October 24, 2019 AZ · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
South32 Hermosa Inc. · Over-exertion in lifting objects

While moving a 5 gallon bucket from equipment 3-5 feet above the ground to ground level, the employee felt pain in the center of the lower back and both sides. EE was seen by on site paramedic then taken to Urgent Care. Physician advised restricted work with light duty.

July 9, 2019 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
South32 Hermosa Inc. · Over-exertion in lifting objects

An Arizona Minerals employee stated that while loading a box of pallet covers into the bed of a truck they felt pain in the shoulder, left side, and lower back. Employee was taken to Urgent Care for evaluation. Employee was cleared to return to work the same day with restrictions concerning strenuous activity.

March 31, 2019 AZ · Metal/Non-Metal drill helper MACHINERY
South32 Hermosa Inc. · Caught in, under or between a moving and a stationary object

While adding drill rods, the drill helper sustained a compression type injury to the right big toe when their foot temporarily caught between the drill head carriage and the rod slide.

2018 · 2 incidents

September 8, 2018 AZ · Metal/Non-Metal vacuum filter operator, flotation mill/concentrator operator, flotation plant operator SLIP OR FALL OF PERSON
South32 Hermosa Inc. · Over-exertion (Not Elsewhere Classified)

Conditions were clear and dry. Employee was walking from a van to the administration office to clock out when they turned their ankle.

August 16, 2018 AZ · Metal/Non-Metal clerk, timekeeper, office worker, director of sales SLIP OR FALL OF PERSON
South32 Hermosa Inc. · Over-exertion (Not Elsewhere Classified)

Conditions at the time of the incident were cloudy and rainy. The employee who was injured was walking from the administrative offices parking lot to office. EE attempted to step/span across a parking ditch that was filled with water rather than walk around it. While doing this ee over-extended right foot/ankle resulting in injury to a tendon.