Mining Incidents

Bigfoot Mine: 101 MSHA citations Metal/Non-Metal

Bigfoot, Atascosa County, TX  ·  Active
MSHA Mine ID: 4105395

Bigfoot Mine has $29K in proposed MSHA penalties and $4K outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
14
Years on record
2019–2024
Latest incident
Dec 2024
Compliance record
MSHA citations since 2018
101
citations
14
significant & substantial
$28,685
proposed penalties
$24,506
paid to date
85% of proposed penalties paid to date, a $4,179 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2018
32
inspections on record
609
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: 609 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Bigfoot Mine has $29K in proposed MSHA penalties and $4K 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.
$29K
proposed penalties
$29K
current assessed
$25K
paid to date
$4K
outstanding
97 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-21.
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.
14.0%
significant & substantial
8.0%
high negligence or reckless
14.0%
reasonably likely or greater
15.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 3.0% low, 89.0% moderate, 8.0% 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: 2026-06-03
38%
of limit-tested samples over the exposure limit
15
samples
8
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz83 over
  • Respirable dust, <.1mg6
  • Unlisted Particulate, total, <1% Qtz1
Show the individual readings (15)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-04-10 Quartz, respirable, >1% Qtz 0.67 0.4 1.68 Front-end Loader Operator
2024-02-12 Quartz, respirable, >1% Qtz 0.62 0.53 1.17 Laborer, Bullgang
2023-12-06 Quartz, respirable, >1% Qtz 0.65 0.39 1.67 Laborer, Bullgang
2026-06-03 Quartz, respirable, >1% Qtz 0.2 0.4 0.50 Dry Screen Plant Operator
2026-04-10 Quartz, respirable, >1% Qtz 0.18 0.45 0.40 Hydrating Plant Operator
2026-04-10 Quartz, respirable, >1% Qtz 0.19 0.7 0.27 Building Repair/Maint.
2025-06-11 Unlisted Particulate, total, <1% Qtz 0 Dry Screen Plant Operator
2025-06-11 Respirable dust, <.1mg 0 Scale Man
2025-06-11 Respirable dust, <.1mg 0 Building Repair/Maint.
2025-06-11 Respirable dust, <.1mg 0 Engineer
2023-12-06 Respirable dust, <.1mg 0 Hand Loader
2021-02-04 Quartz, respirable, >1% Qtz 0.27 0.73 0.37 Building Repair/Maint.
2021-02-04 Respirable dust, <.1mg 0 Truck Loader
2021-02-04 Quartz, respirable, >1% Qtz 0.27 0.54 0.50 Cleanup Man
2021-02-04 Respirable dust, <.1mg 0 Building Repair/Maint.
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.

Bigfoot 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 Texas, metal and nonmetal mining averaged 1.17 cases per 100 workers that year.
Year total case rate days-away fatal
2025 0.00 0.00 0.000
2024 4.29 1.07 0.000
2023 2.69 1.34 0.000
2022 1.36 0.00 0.000
2021 1.73 0.00 0.000
2020 * 4.28 0.00 0.000
2019 3.72 0.00 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. Iron Oak Eagle Ford LLC 2018 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 67
2025 70
2024 78
2023 64
2022 59
2021 48
2020 43
2019 61
Source: MSHA quarterly employment and production, updated weekly.

Bigfoot Mine sits in Atascosa County, Texas, where the Census mining category is 7.1% 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.
Atascosa County, Texas · Population 50,058
7.1%
Mining share of county employment
$69,413
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 42,049 15 1 356.7
2026 Q1 37,328 0 0 0.0
2025 Q4 41,115 3 1 73.0
2025 Q3 37,245 0 0 0.0
2025 Q2 44,593 1 0 22.4
2025 Q1 45,662 1 0 21.9
2024 Q4 53,677 0 0 0.0
2024 Q3 46,608 7 0 150.2
Show 22 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 48,650 0 0 0.0
2024 Q1 37,550 2 1 53.3
2023 Q4 39,692 2 0 50.4
2023 Q3 35,749 0 0 0.0
2023 Q2 35,900 2 0 55.7
2023 Q1 37,414 3 1 80.2
2022 Q4 48,477 0 0 0.0
2022 Q3 33,745 2 0 59.3
2022 Q2 32,997 1 0 30.3
2022 Q1 31,530 0 0 0.0
2021 Q4 31,301 3 2 95.8
2021 Q3 30,833 0 0 0.0
2021 Q2 29,101 3 0 103.1
2021 Q1 24,614 4 0 162.5
2020 Q4 18,970 0 0 0.0
2020 Q3 9,240 0 0 0.0
2020 Q2 26,388 3 0 113.7
2020 Q1 38,782 0 0 0.0
2019 Q4 32,218 8 2 248.3
2019 Q3 35,170 6 2 170.6
2019 Q2 33,349 4 1 119.9
2019 Q1 6,832 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

14 on file

2024 · 5 incidents

December 28, 2024 TX · Metal/Non-Metal mine manager, mine foreman, mine owner POWERED HAULAGE
Iron Oak Eagle Ford LLC · Caught in, under or between a moving and a stationary object

Cleaning under Rotex area. Backing up with Dingo when left wrist got pinned under structure beam and dingo controls.

October 2, 2024 TX · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Iron Oak Eagle Ford LLC · Over-exertion (Not Elsewhere Classified)

Employee was removing organics from screener when EE noticed a slight pain in EE's back from twisting and pulling. Later the employee was feeling more pain while operating a loader.

May 15, 2024 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Iron Oak Eagle Ford LLC · Struck by flying object

Employee used leverage, via pushing by hand, to break a 4.5" PVC pipe, upon breaking the pipe flipped up and struck the employee in the mouth causing a laceration on the lower lip.

March 22, 2024 TX · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Iron Oak Eagle Ford LLC · Struck against stationary object

EE was entering the skidsteer when EE's phone fell out of EE's pocket. It fell on the bucket step into a corner. EE sat down and went to pick it up quickly and when EE pulled hand up noticed the left index finger was bleeding. When EE flexed the finger EE noticed the severity of the cut and it started bleeding profusely.

February 28, 2024 TX · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Iron Oak Eagle Ford LLC · Over-exertion (Not Elsewhere Classified)

Employee was opening the lid on a pneumatic truck. The lid on the handle was tight and employee exerted a good amount of force to get it to open and felt something pull in shoulder muscle. Employee called and said employee wanted to take pain medication and see if it felt better. After about an hour the pain was not getting better and we decided to take employee to get checked out.

2023 · 3 incidents

December 30, 2023 TX · Metal/Non-Metal miner, prospector, nec SLIP OR FALL OF PERSON
Iron Oak Eagle Ford LLC · Fall from machine

Employee was closing lids at our loadout facility and was not maintaining 100% tie off while on the customer truck. The truck pulled forward and the employee fell 15 feet to the concrete floor.

November 19, 2023 TX · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Iron Oak Eagle Ford LLC · Struck by flying object

Employee got sand in EE's right eye while performing housekeeping duties. Was treated onsite with first aid measures, then taken to an offsite facility for evaluation where EE received an eye drop prescription.

April 3, 2023 TX · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OCCUPATIONAL SKIN DISEASES
Iron Oak Eagle Ford LLC · Absorption of radiations, caustics, toxic and noxious substances

Employee was operating a skid steer around a screening location. The following morning the employee complained of facial irritation. Employee was taken to Quality Urgent Care in Pleasanton, TX for evaluation. Diagnosis was Dermatitis to EE's face. This event was reported more than 24 hours after being present at work.

2022 · 1 incident

August 28, 2022 TX · Metal/Non-Metal dryer operator, kiln operator, dry plant operator, fluid operator, bed dryer operator EXPLODING VESSELS UNDER PRESSURE
Iron Oak Eagle Ford LLC · Contact with hot objects or substances

While operating a skidsteer the equipment overheated. The employee exited the equipment to inspect the issue and while the engine compartment was open the radiator overflow line had whipped up and a burst of hot coolant came out hitting their hands. The overflow hose was not secured in place due to the mounting brackets being on the wrong side of the radiator frame.

2021 · 1 incident

August 2, 2021 TX · Metal/Non-Metal dryer operator, kiln operator, dry plant operator, fluid operator, bed dryer operator POWERED HAULAGE
Iron Oak Eagle Ford LLC · Struck by powered moving object

Employee was going to wash off grease fittings. The employee was having an issue with the hose, so the operator was going to dismount the loader to help. The operator did not realize the loader was still in gear and as operator stepped off the brake pedal, the loader moved forward. The front right tire bumped the employee's knee.

2020 · 2 incidents

April 21, 2020 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Iron Oak Eagle Ford LLC · Caught in, under or between a moving and a stationary object

Weather was sunny and damp. Employee was replacing springs on the duster in the dry plant when a metal plate slipped and smashed EE's hand between the metal plate and the metal structure.

March 12, 2020 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
Iron Oak Eagle Ford LLC · Caught in, under or between a moving and a stationary object

Employee was backing up a dingo pushing dand when EE's hand was pinched in between the dingo controls and a cross member for the duster. There was light swelling and redness, treated as a first aid incident. When irritation persisted it was learned that the wrist was broken.

2019 · 2 incidents

August 10, 2019 TX · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger SLIP OR FALL OF PERSON
Iron Oak Eagle Ford LLC · Fall from machine

The employee added oil a machine and then climbed into the cab to turn it off. After turning off the machine EE proceeded down the ladder of the machine slipping on the second rung falling approximately 4.5 feet to the ground landing on EE's buttocks. When EE got up EE felt a sharp pain in EE's pelvis and lower back causing EE to call for help as EE was alone.

July 16, 2019 TX · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger POWERED HAULAGE
Iron Oak Eagle Ford LLC · Struck by powered moving object

The employee was removing a piece of equipment from the forklift to be worked on. The forklift was placed in a holding position but the emergency brake was not on and the controls were not touched when the forklift jerked forward striking the employee on the right side of body causing them to land on the connex box several feet away.