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Rio Bonito Aggregate: 82 MSHA citations Metal/Non-Metal

ROPER CONSTRUCTION, INC. · Surface
Controlled by Ryan Roper
Capitan, Lincoln County, NM  ·  Active
MSHA Mine ID: 2902435

Rio Bonito Aggregate has $19K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2017
Latest incident
Feb 2017
Compliance record
MSHA citations since 2013
82
citations
15
significant & substantial
$19,252
proposed penalties
$19,252
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2013
23
inspections on record
416
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: 416 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Rio Bonito Aggregate has $19K in proposed MSHA penalties and $0 outstanding across 1 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.
$19K
proposed penalties
$19K
current assessed
$19K
paid to date
$0
outstanding
81 assessments are final orders; 1 contested dockets.
Of $100 in penalties contested before the Commission, $0 was upheld in final decisions.
As of the most recent assessment on 2025-11-04.
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.
18.3%
significant & substantial
17.1%
high negligence or reckless
18.3%
reasonably likely or greater
39.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 2.4% low, 80.5% moderate, 17.1% high, 0.0% reckless.
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.
1 citations taken to the federal commission · 1% of citations on record
  • Vacated or withdrawn 1 · 100%
100%
Penalty reduction in decided contests
$100 proposed, $0 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 2013-09-18.
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.
Docket Decision Judge Year Proposed / upheld
CENT 2013-711M Withdrawal Lesnick 2014 $100 → $0
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2024-03-06
0%
of limit-tested samples over the exposure limit
8
samples
5
limit-tested
Most sampled contaminants
  • Nuisance dust, respirable, <1% Qtz3
  • Quartz, respirable, >1% Qtz3
  • Respirable dust, <.1mg1
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (8)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-03-06 Nuisance dust, respirable, <1% Qtz 0.58 10 0.06 Front-end Loader Operator
2024-03-06 Nuisance dust, respirable, <1% Qtz 1.25 10 0.13 Front-end Loader Operator
2020-10-14 Quartz, respirable, >1% Qtz 0.32 Laborer, Bullgang
2017-05-23 Quartz, respirable, >1% Qtz 1.95 3.33 0.59 Laborer, Bullgang
2017-05-23 Unlisted Particulate, respirable, <1% Qtz 0.31 Front-end Loader Operator
2016-09-14 Quartz, respirable, >1% Qtz 0.34 2.21 0.15 Front-end Loader Operator
2016-09-14 Respirable dust, <.1mg 0 Mechanic
2016-09-14 Nuisance dust, respirable, <1% Qtz 0.3 10 0.03 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. Southwest Paving and Grading Inc 2013 to 2018
  2. ROPER CONSTRUCTION, INC. 2018 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 3
2023 2
2022 2
2021 2
2020 2
2019 3
2018 2
2017 6
2016 6
2015 4
2014 2
2013 5
Source: MSHA quarterly employment and production, updated weekly.

Rio Bonito Aggregate sits in Lincoln County, New Mexico, where the Census mining category is 1.5% 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.
Lincoln County, New Mexico · Population 20,227
1.5%
Mining share of county employment
$51,643
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 1,488 0 0 0.0
2026 Q1 1,383 0 0 0.0
2025 Q4 2,020 8 0 3960.4
2025 Q3 2,001 2 1 999.5
2025 Q2 1,504 0 0 0.0
2025 Q1 1,536 9 3 5859.4
2024 Q4 1,416 0 0 0.0
2024 Q3 1,644 4 0 2433.1
Show 42 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,256 0 0 0.0
2024 Q1 1,358 5 0 3681.9
2023 Q4 980 0 0 0.0
2023 Q3 976 1 0 1024.6
2023 Q2 1,048 0 0 0.0
2023 Q1 994 0 0 0.0
2022 Q4 1,041 0 0 0.0
2022 Q3 1,040 7 2 6730.8
2022 Q2 1,216 0 0 0.0
2022 Q1 1,001 0 0 0.0
2021 Q4 1,232 0 0 0.0
2021 Q3 1,056 0 0 0.0
2021 Q2 1,379 0 0 0.0
2021 Q1 932 0 0 0.0
2020 Q4 1,012 12 0 11857.7
2020 Q3 1,304 2 0 1533.7
2020 Q2 1,122 0 0 0.0
2020 Q1 942 0 0 0.0
2019 Q4 972 0 0 0.0
2019 Q3 1,032 0 0 0.0
2019 Q2 970 5 1 5154.6
2019 Q1 1,231 0 0 0.0
2018 Q4 864 0 0 0.0
2017 Q4 2,860 5 2 1748.3
2017 Q3 3,140 0 0 0.0
2017 Q2 3,032 4 0 1319.3
2017 Q1 2,730 5 1 1831.5
2016 Q4 2,832 0 0 0.0
2016 Q3 3,097 0 0 0.0
2016 Q2 1,859 0 0 0.0
2016 Q1 1,490 2 1 1342.3
2015 Q4 1,981 0 0 0.0
2015 Q3 1,608 0 0 0.0
2015 Q2 1,529 3 0 1962.1
2015 Q1 827 0 0 0.0
2014 Q4 539 0 0 0.0
2014 Q3 0 0 0
2014 Q2 360 0 0 0.0
2014 Q1 0 0 0
2013 Q4 2,343 0 0 0.0
2013 Q3 2,005 7 4 3491.3
2013 Q2 2,289 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2017 · 1 incident

February 28, 2017 NM · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Southwest Paving and Grading Inc · Fall from machine

Employee was exiting loader and had one foot on the bottom step of loader and one foot on ground while using 3 point contact when employee slipped (2 feet) onto their rear. At first employee did not want to be checked out and 10 min later decided to be examined. Employee lost balance landed on their rear and fractured hip.