Mining Incidents

Portable Plant: 106 MSHA citations Metal/Non-Metal

Fowler Brothers Inc · Surface
Silver City, Grant County, NM  ·  Active
MSHA Mine ID: 2901101

Portable Plant has $14K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Portable Plant.

Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2000
106
citations
32
significant & substantial
$14,245
proposed penalties
$14,245
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
58
inspections on record
752
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: 752 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Portable Plant has $14K 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.
$14K
proposed penalties
$14K
current assessed
$14K
paid to date
$0
outstanding
102 assessments are final orders; 0 contested dockets.
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.
31.4%
significant & substantial
1.0%
high negligence or reckless
31.4%
reasonably likely or greater
51.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 9.8% low, 89.2% moderate, 1.0% 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: 2018-03-27, 8 years ago
13%
of limit-tested samples over the exposure limit
21
samples
8
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz91 over
  • Respirable dust, <.1mg10
  • Unlisted Particulate, respirable, <1% Qtz2
Show the individual readings (21)
Date Contaminant Concentration Limit Conc / limit Occupation
2012-06-19 Quartz, respirable, >1% Qtz 2 1.47 1.36 Bulldozer Operator
2018-03-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-03-27 Quartz, respirable, >1% Qtz 0.19 Mechanic
2013-11-05 Respirable dust, <.1mg 0 Backhoe Operator
2013-11-05 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-06-11 Quartz, respirable, >1% Qtz 0.22 1.58 0.14 Front-end Loader Operator
2013-06-11 Respirable dust, <.1mg 0 Backhoe Operator
2013-06-11 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-06-11 Respirable dust, <.1mg 0 Bulldozer Operator
2012-08-02 Quartz, respirable, >1% Qtz 0.28 0.98 0.29 Backhoe Operator
2012-08-02 Respirable dust, <.1mg 0 Bulldozer Operator
2012-06-19 Quartz, respirable, >1% Qtz 0.38 1.4 0.27 Laborer, Bullgang
2012-06-19 Respirable dust, <.1mg 0 Front-end Loader Operator
2012-06-19 Quartz, respirable, >1% Qtz 0.15 1.5 0.10 Backhoe Operator
2012-01-26 Quartz, respirable, >1% Qtz 0.17 1.29 0.13 Front-end Loader Operator
2007-04-12 Quartz, respirable, >1% Qtz 0.36 0.73 0.49 Front-end Loader Operator
2007-04-12 Quartz, respirable, >1% Qtz 0.23 0.75 0.31 Front-end Loader Operator
2007-04-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-01-28 Unlisted Particulate, respirable, <1% Qtz 0.17 Front-end Loader Operator
2003-01-28 Respirable dust, <.1mg 0 Crusher Oper/Worker
2003-01-28 Unlisted Particulate, respirable, <1% Qtz 0.18 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. Fowler Brothers Inc 1997 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 3
2025 3
2024 3
2023 3
2022 3
2021 3
2020 3
2019 3
2018 4
2017 4
2016 6
2015 6
2014 10
2013 9
2012 8
2011 4
2010 2
2009 2
2008 4
2007 4
2006 3
2005 4
2004 2
2003 2
2002 2
2001 1
2000 1
Source: MSHA quarterly employment and production, updated weekly.

Portable Plant sits in Grant County, New Mexico, where the Census mining category is 6.7% 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.
Grant County, New Mexico · Population 27,856
6.7%
Mining share of county employment
$45,921
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 1,023 4 1 3910.1
2026 Q1 1,118 0 0 0.0
2025 Q4 642 4 0 6230.5
2025 Q3 558 0 0 0.0
2025 Q2 1,075 2 0 1860.5
2025 Q1 1,118 3 0 2683.4
2024 Q4 1,013 0 0 0.0
2024 Q3 1,042 2 0 1919.4
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,135 0 0 0.0
2024 Q1 1,113 0 0 0.0
2023 Q4 1,033 0 0 0.0
2023 Q3 1,146 1 0 872.6
2023 Q2 1,021 0 0 0.0
2023 Q1 960 0 0 0.0
2022 Q4 992 0 0 0.0
2022 Q3 835 3 0 3592.8
2022 Q2 1,077 0 0 0.0
2022 Q1 1,087 0 0 0.0
2021 Q4 517 0 0 0.0
2021 Q3 694 0 0 0.0
2021 Q2 1,052 0 0 0.0
2021 Q1 992 1 0 1008.1
2020 Q4 891 0 0 0.0
2020 Q3 1,027 0 0 0.0
2020 Q2 1,048 1 0 954.2
2020 Q1 908 0 0 0.0
2019 Q4 924 0 0 0.0
2019 Q3 867 0 0 0.0
2019 Q2 912 0 0 0.0
2019 Q1 949 2 1 2107.5
2018 Q4 951 0 0 0.0
2018 Q3 1,028 0 0 0.0
2018 Q2 972 0 0 0.0
2018 Q1 824 3 0 3640.8
2017 Q4 659 0 0 0.0
2017 Q3 728 0 0 0.0
2017 Q2 817 0 0 0.0
2017 Q1 1,022 5 2 4892.4
2016 Q4 1,107 0 0 0.0
2016 Q3 832 0 0 0.0
2016 Q2 736 0 0 0.0
2016 Q1 728 0 0 0.0
2015 Q4 820 0 0 0.0
2015 Q3 759 0 0 0.0
2015 Q2 640 2 1 3125.0
2015 Q1 1,794 0 0 0.0
2014 Q4 2,301 0 0 0.0
2014 Q3 2,538 0 0 0.0
2014 Q2 905 0 0 0.0
2014 Q1 2,178 0 0 0.0
2013 Q4 1,604 3 2 1870.3
2013 Q3 1,446 0 0 0.0
2013 Q2 2,169 6 3 2766.3
2013 Q1 2,171 0 0 0.0
2012 Q4 2,187 0 0 0.0
2012 Q3 1,579 1 0 633.3
2012 Q2 1,077 6 4 5571.0
2012 Q1 353 1 0 2832.9
2011 Q4 80 0 0 0.0
2011 Q3 137 0 0 0.0
2011 Q2 1,467 7 3 4771.6
2011 Q1 470 3 0 6383.0
2010 Q4 0 0 0
2010 Q3 327 0 0 0.0
2010 Q2 0 4 1
2010 Q1 1,293 0 0 0.0
2009 Q4 80 1 0 12500.0
2009 Q3 1,469 1 0 680.7
2009 Q2 1,073 0 0 0.0
2009 Q1 910 3 3 3296.7
2008 Q4 1,508 0 0 0.0
2008 Q3 1,550 0 0 0.0
2008 Q2 910 2 0 2197.8
2008 Q1 1,759 1 0 568.5
2007 Q4 1,690 0 0 0.0
2007 Q3 2,157 1 0 463.6
2007 Q2 1,530 2 0 1307.2
2007 Q1 1,236 0 0 0.0
2006 Q4 1,426 0 0 0.0
2006 Q3 1,211 3 2 2477.3
2006 Q2 1,086 0 0 0.0
2006 Q1 869 0 0 0.0
2005 Q4 1,317 9 3 6833.7
2005 Q3 399 0 0 0.0
2005 Q2 1,553 0 0 0.0
2005 Q1 1,027 0 0 0.0
2004 Q4 1,440 0 0 0.0
2004 Q3 992 0 0 0.0
2004 Q2 692 0 0 0.0
2004 Q1 300 0 0 0.0
2003 Q4 480 0 0 0.0
2003 Q3 960 0 0 0.0
2003 Q2 960 0 0 0.0
2003 Q1 1,054 1 0 948.8
2002 Q4 985 0 0 0.0
2002 Q3 1,440 0 0 0.0
2002 Q2 1,320 2 0 1515.2
2002 Q1 80 0 0 0.0
2001 Q4 0 0 0
2001 Q3 0 0 0
2001 Q2 60 0 0 0.0
2001 Q1 0 0 0
2000 Q4 0 0 0
2000 Q3 0 3 0
2000 Q2 1,600 13 6 8125.0
2000 Q1 1,115 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.