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: 809 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘA Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2025-02-18.
On record since 2025.
Source: MSHA imminent-danger order records, updated weekly.
Dimmit Mine has $194K in proposed MSHA penalties and $14K outstanding across 3 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.
$194K
proposed penalties
$187K
current assessed
$173K
paid to date
$14K
outstanding
193 assessments are final orders; 3 contested dockets.
Of $66K in penalties contested before the Commission, $59K was upheld in final decisions.
As of the most recent assessment on 2026-04-22.
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 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.
4citations taken to the federal commission · 2% of citations on record
Settled
4 · 100%
100%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 4 decided S&S contests · industry: 79%
11%
Penalty reduction in decided contests
$66K proposed, $59K 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 2025-05-07.
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.
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: 2025-12-03
38%
of limit-tested samples over the exposure limit
21
samples
13
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz155 over
Respirable dust, <.1mg6
Show the individual readings (21)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2023-08-18
Quartz, respirable, >1% Qtz
1.4
0.34
4.12
Laborer, Bullgang
2022-07-27
Quartz, respirable, >1% Qtz
0.93
0.29
3.21
Kiln/Dryer Operator
2019-07-30
Quartz, respirable, >1% Qtz
0.53
0.36
1.47
Laborer, Bullgang
2019-06-19
Quartz, respirable, >1% Qtz
0.81
0.28
2.89
Dump Operator
2019-04-10
Quartz, respirable, >1% Qtz
1.36
0.33
4.12
Laborer, Bullgang
2025-12-03
Respirable dust, <.1mg
0
Front-end Loader Operator
2025-12-03
Quartz, respirable, >1% Qtz
0.44
0.47
0.94
Dry Screen Plant Operator
2025-12-03
Respirable dust, <.1mg
0
Dry Screen Plant Operator
2025-12-03
Respirable dust, <.1mg
0
Scale Man
2023-11-21
Quartz, respirable, >1% Qtz
0.33
0.54
0.61
Laborer, Bullgang
2023-08-18
Quartz, respirable, >1% Qtz
0.3
0.36
0.83
Laborer, Bullgang
2023-08-18
Respirable dust, <.1mg
0
Front-end Loader Operator
2023-01-18
Quartz, respirable, >1% Qtz
0.29
0.51
0.57
Laborer, Bullgang
2023-01-18
Quartz, respirable, >1% Qtz
0.38
0.64
0.59
Front-end Loader Operator
2022-09-28
Respirable dust, <.1mg
0
Kiln/Dryer Operator
2022-07-27
Quartz, respirable, >1% Qtz
0.24
0.43
0.56
Screen/Scalper Operator
2022-07-27
Quartz, respirable, >1% Qtz
0.28
0.38
0.74
Utility Man
2019-08-20
Respirable dust, <.1mg
0
Laborer, Bullgang
2019-04-10
Quartz, respirable, >1% Qtz
0.27
0.73
0.37
Kiln/Dryer Operator
2019-04-10
Quartz, respirable, >1% Qtz
0.13
Welder, etc.
2019-04-10
Quartz, respirable, >1% Qtz
0.15
Washer 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.
Dimmit Mine recorded 1.18 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.
1.18
total case rate
1.18
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
1.18
1.18
0.000
2024
1.11
0.00
0.000
2023
1.27
0.00
0.000
2022
0.00
0.00
0.000
2021 *
7.95
3.98
0.000
2020 *
6.22
0.00
0.000
2019
3.59
3.59
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
69
2025
73
2024
73
2023
61
2022
59
2021
21
2020
36
2019
68
2018
35
Source: MSHA quarterly employment and production, updated weekly.
Dimmit Mine sits in Dimmit County, Texas, where the Census mining category is 14.4% 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.
Dimmit County, Texas · Population 8,507
14.4%
Mining share of county employment
$33,409
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
41,039
9
0
219.3
2026 Q1
40,611
0
0
0.0
2025 Q4
37,585
34
1
904.6
2025 Q3
45,279
0
0
0.0
2025 Q2
48,549
3
1
61.8
2025 Q1
38,708
10
2
258.3
2024 Q4
45,648
0
0
0.0
2024 Q3
42,841
0
0
0.0
Show 24 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
48,408
15
2
309.9
2024 Q1
43,234
0
0
0.0
2023 Q4
44,276
24
6
542.1
2023 Q3
38,984
13
4
333.5
2023 Q2
38,814
0
0
0.0
2023 Q1
35,992
4
0
111.1
2022 Q4
47,079
24
3
509.8
2022 Q3
35,065
11
2
313.7
2022 Q2
34,155
0
0
0.0
2022 Q1
29,035
4
1
137.8
2021 Q4
21,903
0
0
0.0
2021 Q3
17,399
0
0
0.0
2021 Q2
9,508
0
0
0.0
2021 Q1
1,488
0
0
0.0
2020 Q4
1,239
0
0
0.0
2020 Q3
1,176
0
0
0.0
2020 Q2
14,687
9
0
612.8
2020 Q1
47,167
7
1
148.4
2019 Q4
41,722
0
0
0.0
2019 Q3
42,956
1
0
23.3
2019 Q2
53,463
4
1
74.8
2019 Q1
28,944
0
0
0.0
2018 Q4
24,628
2
1
81.2
2018 Q3
4,631
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
14 on file
2026 · 1 incident
May 9, 2026TX · Metal/Non-Metalball/rod/pebble/hand/limestone/dry mill operator, roller operatorPOWERED HAULAGE
While performing routine cleaning duties, the operator of a Bobcat MT100 mini track skid steer reversed the equipment and made contact with a protruding motor. This resulted in an impact to the operator's lower back
2025 · 1 incident
January 18, 2025TX · Metal/Non-Metaldry screening plant operator, screen house operatorOTHER
Employee was working on carrier feed hopper guard. While another employee was using grinder to remove the guard. Employee pulled and guard popped "snapped" out striking employee and forehead causing skin to be open at point of impact.
2023 · 2 incidents
February 21, 2023TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDTOOLS (NONPOWERED)
Employee was bending a damaged guard with a hammer when the guard shifted and the employee struck their hand against the edge. This caused a laceration on their right index finger requiring 3 stitches. No restrictions were put in place.
January 11, 2023TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techEXPLODING VESSELS UNDER PRESSURE
Employee was repairing leaks on baghouse & valve separated from wall and struck EE in the face. EE was driven to ER for medical attention by co-worker.
2021 · 2 incidents
October 18, 2021TX · Metal/Non-Metalcar trimmer, car loader, bin puller, truck loaderSLIP OR FALL OF PERSON
Loadout operator was on top of a box truck closing hatches. The top of the box had a thin layer of sand causing the EE to slip and stumble backwards, tripping over the small rail on the edge of the box causing EE to fall over the side and between the the 2 boxes on the trailer and hit the bridge of nose on the second box which was directly behind EE.
September 2, 2021TX · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
Belt press attendant was cleaning a floc mix bowl, after flushing out the bowl EE went hang the hose up and slipped backwards due to floc on the ground. EE extended EE's hand out to catch fall & got a cut from a metal grading step. After EE fell, we asked EE if EE was okay, EE said "yes" we helped EE clean the cut on EE's hand after that EE was taken for more medical attention.
2020 · 2 incidents
April 4, 2020TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Employee stepped into an area where there was some "FLOC" residue causing the concrete slab to be slippery. Employee slipped on EE's left ankle and fell to EE's right side landing mostly on EE's right shoulder then right hip.
2019 · 5 incidents
December 5, 2019TX · Metal/Non-Metalcrane operator, mobile equipment operator (meo), dragline operator, dropball operator, riggerPOWERED HAULAGE
Employee operating skid steer when it suddenly pulled hard to one side causing employee to hit their head on side of window and later experiencing neck pain. Employee did not report incident and went to ER on their own.
Blisters on feet due to friction inside of boots. Blisters infected - Cellulitis.
September 16, 2019TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Employee opening lid hatch for Trailers. Employee opened double hatch lids and was attempting to cross back to the platform and stepped into the open space of box with left foot and fell onto cross member of Box; employee sustained a bruised right knee, left elbow & perineum area of buttocks. Initially, was reported as a first aid injury only.
May 22, 2019TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSTEPPING OR KNEELING ON OBJECT
MPCS division independent contractor was installing floor grating. EE had cut a piece off and returned to cut more and stepped onto a piece of metal buried in the sand. The pointed sharp edge punctured the boot and caused a laceration under the left big toe.
March 11, 2019TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
EE was helping assemble an excavator. Attempting to attach arm to boom with a steel pin (273.25 lbs.). Pin was held in place with a nylon strap. Pieces were misaligned. The EEs began to remove the pin and pieces shifted, causing the injured EE's finger to be pinched between the pieces, causing soft tissue injury. EE was treated for degloving of the distal phalanx of fifth finger.