Mining Incidents

Nephi Complex: 47 MSHA citations Metal/Non-Metal

AMP Processing, LLC · Surface
Fayette, Sanpete County, UT  ·  Intermittent
MSHA Mine ID: 4202533

Nephi Complex has $6K 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
4
Years on record
2012–2023
Latest incident
Mar 2023
Compliance record
MSHA citations since 2010
47
citations
9
significant & substantial
$6,292
proposed penalties
$6,292
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2010
30
inspections on record
446
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: 446 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Nephi Complex has $6K in proposed MSHA penalties and $0 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.
$6K
proposed penalties
$6K
current assessed
$6K
paid to date
$0
outstanding
46 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-11-26.
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.
19.1%
significant & substantial
2.1%
high negligence or reckless
19.1%
reasonably likely or greater
80.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 4.3% low, 93.6% moderate, 2.1% 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: 2024-03-13
0%
of limit-tested samples over the exposure limit
10
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg5
  • Arsenic dust1
  • Beryllium dust1
  • Cadmium dust & salts1
Show the individual readings (19)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-03-13 Respirable dust, <.1mg 0 Crusher Oper/Worker
2024-03-13 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-03-02 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-03-02 Quartz, respirable, >1% Qtz 1.04 Dry Screen Plant Operator
2013-09-18 Respirable dust, <.1mg 0 Bagging Operator
2010-10-14 Cobalt dust 0 100 0.00 Crusher Oper/Worker
2010-10-14 Copper dust and mist 0 1 0.00 Crusher Oper/Worker
2010-10-14 Lead, inorganic dust 0 150 0.00 Crusher Oper/Worker
2010-10-14 Molybdenum dust 0 10 0.00 Crusher Oper/Worker
2010-10-14 Nickel dust & salts 0 1 0.00 Crusher Oper/Worker
2010-10-14 Vanadium dust 0 500 0.00 Crusher Oper/Worker
2010-10-14 Unlisted Particulate, total, <1% Qtz 1.66 Front-end Loader Operator
2010-10-14 Manganese dust 0 5 0.00 Crusher Oper/Worker
2010-10-14 Arsenic dust 0 500 0.00 Crusher Oper/Worker
2010-10-14 Beryllium dust 0 2 0.00 Crusher Oper/Worker
2010-10-14 Cadmium dust & salts 0 200 0.00 Crusher Oper/Worker
2010-10-14 Chromium, soluble 0.2 500 0.00 Crusher Oper/Worker
2010-03-03 Respirable dust, <.1mg 0 Bobcat Operator
2010-03-03 Unlisted Particulate, respirable, <1% Qtz 0.19 Front-end Loader 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.
Ownership history
  1. AMP Processing, LLC 2009 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 2
2024 2
2023 3
2022 2
2021 1
2020 2
2019 2
2018 2
2017 3
2016 2
2015 2
2014 3
2013 13
2012 5
2011 6
2010 5
2009 6
Source: MSHA quarterly employment and production, updated weekly.

Nephi Complex sits in Sanpete County, Utah, where the Census mining category is 4.0% 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.
Sanpete County, Utah · Population 29,209
4.0%
Mining share of county employment
$67,459
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 705 0 0 0.0
2026 Q1 647 0 0 0.0
2025 Q4 672 0 0 0.0
2025 Q3 706 0 0 0.0
2025 Q2 814 0 0 0.0
2025 Q1 814 0 0 0.0
2024 Q4 804 1 0 1243.8
2024 Q3 702 0 0 0.0
Show 60 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 933 0 0 0.0
2024 Q1 1,105 4 1 3619.9
2023 Q4 1,078 0 0 0.0
2023 Q3 1,322 0 0 0.0
2023 Q2 1,495 0 0 0.0
2023 Q1 1,434 0 0 0.0
2022 Q4 632 1 0 1582.3
2022 Q3 408 0 0 0.0
2022 Q2 241 0 0 0.0
2022 Q1 326 1 0 3067.5
2021 Q4 117 0 0 0.0
2021 Q3 156 0 0 0.0
2021 Q2 392 1 0 2551.0
2021 Q1 341 0 0 0.0
2020 Q4 546 2 1 3663.0
2020 Q3 574 0 0 0.0
2020 Q2 547 0 0 0.0
2020 Q1 615 0 0 0.0
2019 Q4 830 0 0 0.0
2019 Q3 540 0 0 0.0
2019 Q2 637 0 0 0.0
2019 Q1 894 3 0 3355.7
2018 Q4 583 0 0 0.0
2018 Q3 333 3 0 9009.0
2018 Q2 363 0 0 0.0
2018 Q1 879 0 0 0.0
2017 Q4 504 5 0 9920.6
2017 Q3 809 0 0 0.0
2017 Q2 809 4 2 4944.4
2017 Q1 679 0 0 0.0
2016 Q4 449 0 0 0.0
2016 Q3 560 0 0 0.0
2016 Q2 416 0 0 0.0
2016 Q1 624 0 0 0.0
2015 Q4 224 4 0 17857.1
2015 Q3 224 0 0 0.0
2015 Q2 416 1 0 2403.8
2015 Q1 548 0 0 0.0
2014 Q4 576 0 0 0.0
2014 Q3 612 0 0 0.0
2014 Q2 302 6 2 19867.5
2014 Q1 1,933 0 0 0.0
2013 Q4 4,833 1 0 206.9
2013 Q3 4,315 0 0 0.0
2013 Q2 4,137 1 1 241.7
2013 Q1 3,691 1 0 270.9
2012 Q4 2,160 0 0 0.0
2012 Q3 2,160 0 0 0.0
2012 Q2 2,160 1 0 463.0
2012 Q1 2,880 0 0 0.0
2011 Q4 2,744 2 0 728.9
2011 Q3 2,744 0 0 0.0
2011 Q2 2,600 0 0 0.0
2011 Q1 2,744 0 0 0.0
2010 Q4 2,500 3 0 1200.0
2010 Q3 2,560 0 0 0.0
2010 Q2 2,344 0 0 0.0
2010 Q1 2,040 2 2 980.4
2009 Q4 1,808 0 0 0.0
2009 Q3 424 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

4 on file

2023 · 1 incident

March 20, 2023 UT · Metal/Non-Metal warehouse, supply handler HANDLING OF MATERIALS
AMP Processing, LLC · Caught in, under or between a moving and a stationary object

Employee was moving scrap metal, while pushing on metal right hand middle finger was caught between metal. Finger was smashed and cut

2014 · 1 incident

March 12, 2014 UT · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor HANDTOOLS (NONPOWERED)
AMP Processing, LLC · Struck by... (Not Elsewhere Classified)

Employee was cutting rubber belting with a razor knife and cut his leg.

2013 · 1 incident

December 20, 2013 UT · Metal/Non-Metal electrician, lineman HANDTOOLS (NONPOWERED)
AMP Processing, LLC · Struck by... (Not Elsewhere Classified)

Unplugging hopper with pry bar, pry bar slipped and hit employee in the mouth causing laceration on lower lip.

2012 · 1 incident

February 7, 2012 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
AMP Processing, LLC · Struck by... (Not Elsewhere Classified)

EE was changing the cutting edge on loader. Removing bolts- bolt spun it had a sharp edge and cut finger.