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.
115 citations across 1,082 inspection hours.
Source: MSHA inspections data, updated weekly.
El Nino has $73K in proposed MSHA penalties and $133 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.
$73K
proposed penalties
$73K
current assessed
$72K
paid to date
$133
outstanding
111 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-14.
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.
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: 2025-10-08
25%
of limit-tested samples over the exposure limit
10
samples
8
limit-tested
Most sampled contaminants
Diesel particulate (total carbon)41 over
Quartz, respirable, >1% Qtz41 over
Respirable dust, <.1mg2
Show the individual readings (21)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2022-08-10
EC @ 160
245
160
1.53
Mucking Mach. Operator
2022-08-10
TC @ 160
306
160
1.91
Mucking Mach. Operator
2022-08-10
Quartz, respirable, >1% Qtz
1.24
1.06
1.17
Mechanic
2025-10-08
EC @ 160
0
160
0.00
Mucking Mach. Operator
2025-10-08
TC from EC @ 160
0
160
0.00
Mucking Mach. Operator
2025-10-08
Quartz, respirable, >1% Qtz
0.4
0.69
0.58
Mechanic
2025-10-08
Quartz, respirable, >1% Qtz
0.6
0.65
0.92
Truck Driver
2025-10-08
Quartz, respirable, >1% Qtz
0.28
0.63
0.44
Truck Driver
2025-10-08
ORGANIC CARBON
0
Mucking Mach. Operator
2025-10-08
TC @ 160
0
160
0.00
Mucking Mach. Operator
2022-10-06
TC from EC @ 160
0
160
0.00
Mucking Mach. Operator
2022-10-06
EC @ 160
126
160
0.79
Mucking Mach. Operator
2022-10-06
TC @ 160
159
160
0.99
Mucking Mach. Operator
2022-10-06
ORGANIC CARBON
33
Mucking Mach. Operator
2022-08-10
Respirable dust, <.1mg
0
Shotcrete/Gunite Man
2022-08-10
ORGANIC CARBON
61
Mucking Mach. Operator
2022-08-10
TC from EC @ 160
0
160
0.00
Mucking Mach. Operator
2019-11-21
Respirable dust, <.1mg
0
Truck Driver
2019-11-21
TC @ 160
32
160
0.20
Truck Driver
2019-11-21
EC @ 160
0
160
0.00
Truck Driver
2019-11-21
TC from EC @ 160
0
160
0.00
Truck Driver
Area samples (mill and shop air)
Last sampled: 2025-10-08
3
samples
Show the individual readings (6)
Date
Contaminant
Concentration
Limit
Conc / limit
Area sampled
2025-10-08
EC @ 160
0
UG ACTIVE MINING
2025-10-08
TC @ 160
0
UG ACTIVE MINING
2022-10-06
EC @ 160
0
UG ACTIVE MINING
2022-10-06
TC @ 160
0
UG ACTIVE MINING
2022-08-10
EC @ 160
0
UG ACTIVE MINING
2022-08-10
TC @ 160
0
UG ACTIVE MINING
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.
El Nino 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 Nevada, metal and nonmetal mining averaged 1.25 cases per 100 workers that year.
Year
total case rate
days-away
fatal
2025
0.00
0.00
0.000
2024
1.38
1.38
0.000
2023
4.11
0.00
0.000
2022
0.00
0.00
0.000
2021 *
0.00
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
78
2025
78
2024
79
2023
68
2022
72
2021
33
2020
5
2019
3
2018
6
Source: MSHA quarterly employment and production, updated weekly.
El Nino sits in Eureka County, Nevada, where the Census mining category is 30.5% 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.
Eureka County, Nevada · Population 1,660
30.5%
Mining share of county employment
$73,095
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
33,623
5
1
148.7
2026 Q1
33,255
7
0
210.5
2025 Q4
36,763
13
1
353.6
2025 Q3
35,264
1
0
28.4
2025 Q2
35,980
7
1
194.6
2025 Q1
29,026
16
2
551.2
2024 Q4
30,547
6
0
196.4
2024 Q3
35,842
5
0
139.5
Show 24 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
41,304
5
0
121.1
2024 Q1
37,121
5
0
134.7
2023 Q4
34,631
5
2
144.4
2023 Q3
33,820
0
0
0.0
2023 Q2
36,716
3
0
81.7
2023 Q1
40,933
1
0
24.4
2022 Q4
40,111
0
0
0.0
2022 Q3
38,521
10
2
259.6
2022 Q2
39,604
1
0
25.2
2022 Q1
36,642
0
0
0.0
2021 Q4
32,584
1
0
30.7
2021 Q3
29,746
1
0
33.6
2021 Q2
3,959
0
0
0.0
2021 Q1
879
0
0
0.0
2020 Q4
1,915
0
0
0.0
2020 Q3
3,682
0
0
0.0
2020 Q2
3,047
4
0
1312.8
2020 Q1
3,009
0
0
0.0
2019 Q4
1,530
0
0
0.0
2019 Q3
2,120
0
0
0.0
2019 Q2
1,560
0
0
0.0
2019 Q1
1,530
0
0
0.0
2018 Q4
1,590
0
0
0.0
2018 Q3
1,217
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
12 on file
2026 · 1 incident
January 23, 2026NV · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Ee reports pulling on diesel hose after fueling up equipment, feeling sharp, twisting pain in abdomen. Finished fueling, after about 20 minutes they threw up. Continued to fuel island, parked, went to blue room, threw up. Reported to lead, transported to ER, diagnosed with hernia, referred for surgery. Working restricted.
Ee loading round, just finished scaling prior to loading. Some rock was coming down, ee tried to scale down again, nothing came. Continued loading, a few pieces of rock came down, one brushed ee's left arm and then rolled onto outside left calf. Seen at ER, referred to ortho and is having surgery 2/2.
2023 · 3 incidents
October 1, 2023NV · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techDISORDERS (REPEATED TRAUMA)
EE sustained a Standard Threshold Shift in hearing. Confirmed reportable level hearing loss. Occupational noise could not be ruled out as a factor in the noise induced hearing loss. Retraining and refitting complete.
March 29, 2023NV · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Nevada Gold Mines LLC · Caught in, under or between a moving and a stationary object
EE was installing a starter in a haul truck. Starter slipped, pinching the EE's finger. Seen at ER, laceration to tip of middle finger, fingernail removed. Sutures and wound care provided, EE released to full duty 3/30.
January 25, 2023NV · Metal/Non-Metalminer, necALL OTHER OCCUPATIONAL ILLNESSES
Ee backfilling. Haul truck bed flipped, EE stopped, called shifter. No injuries. Began to have feelings of anxiety, lost confidence, questioned self. Reported this to NGM 3/9/23. Filed claim for workers' comp, occupational illness, acute stress reaction, accepted on 3/17/23.
2022 · 1 incident
February 26, 2022NV · Metal/Non-Metalminer, necMACHINERY
Injured employee placed a pipe wrench on a drill rod sub and when activated, the wrench struck the employee in the hardhat above right eye knocking employee to the ground.
2021 · 1 incident
April 2, 2021NV · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techMACHINERY
Employee was using a grinder to repair a piece of equipment. Later that evening EE felt something in EE's right eye and was taken to the hospital where they removed a small piece of debris.
2020 · 2 incidents
August 7, 2020NV · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techPOWERED HAULAGE
Employee was troubleshooting the AC circuit on a 1600 LHD and had removed the cooling fan from the condenser. While testing, the fan started and moved striking the employee on the the thumb causing a cut and a fracture of the bone.
Employee was at the face cleaning the lifter hole with a fin hoe preparing to install collar pipe. As EE was using the hoe a section from near the center of the face sloughed down towards EE striking EE to the ground on the left rib.
February 26, 2019NV · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
Employee installing chute on concrete mixer truck. Finger caught in pinch point between two chutes. Open fracture (non displaced) to right index finger.