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50-10 Aggregate Prep Plant: 21 MSHA citations Metal/Non-Metal

ACA Products Inc · Surface
Johnson Village, Chaffee County, CO  ·  Intermittent
MSHA Mine ID: 0504774

50-10 Aggregate Prep Plant has $3K 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
1
Years on record
2015
Latest incident
Mar 2015
Compliance record
MSHA citations since 2004
21
citations
5
significant & substantial
$2,711
proposed penalties
$2,711
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See ACA Products Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2004
20
inspections on record
293
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: 293 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

50-10 Aggregate Prep Plant has $3K 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
21 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-12-03.
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.
23.8%
significant & substantial
9.5%
high negligence or reckless
23.8%
reasonably likely or greater
52.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 14.3% low, 76.2% moderate, 9.5% 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: 2025-04-08
0%
of limit-tested samples over the exposure limit
13
samples
3
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg8
  • Quartz, respirable, >1% Qtz5
Show the individual readings (13)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-04-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-04-08 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2025-04-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-04-08 Quartz, respirable, >1% Qtz 0.13 Front-end Loader Operator
2021-11-18 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2021-11-18 Quartz, respirable, >1% Qtz 0.67 Front-end Loader Operator
2021-11-18 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2011-01-27 Quartz, respirable, >1% Qtz 0.48 0.84 0.57 Front-end Loader Operator
2011-01-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-08-25 Quartz, respirable, >1% Qtz 0.25 0.8 0.31 Supervisor, Co. Official
2009-08-25 Quartz, respirable, >1% Qtz 0.18 1.24 0.15 Front-end Loader Operator
2006-03-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2006-03-08 Respirable dust, <.1mg 0 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. ACA Products Inc 2003 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 8
2025 7
2024 7
2023 5
2022 8
2021 6
2020 6
2019 7
2018 6
2017 5
2016 6
2015 3
2014 4
2013 7
2012 8
2011 3
2010 3
2009 4
2007 0
2006 5
2005 4
2004 6
2003 6
Source: MSHA quarterly employment and production, updated weekly.

50-10 Aggregate Prep Plant sits in Chaffee County, Colorado, where the Census mining category is 0.0% 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.
Chaffee County, Colorado · Population 19,876
0.0%
Mining share of county employment
$70,909
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 1,037 0 0 0.0
2026 Q1 1,735 0 0 0.0
2025 Q4 714 1 0 1400.6
2025 Q3 208 0 0 0.0
2025 Q2 1,817 1 1 550.4
2025 Q1 2,336 0 0 0.0
2024 Q4 336 0 0 0.0
2024 Q3 526 0 0 0.0
Show 79 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,885 0 0 0.0
2024 Q1 2,193 0 0 0.0
2023 Q4 546 0 0 0.0
2023 Q3 0 0 0
2023 Q2 712 0 0 0.0
2023 Q1 2,025 0 0 0.0
2022 Q4 1,057 0 0 0.0
2022 Q3 503 0 0 0.0
2022 Q2 1,017 0 0 0.0
2022 Q1 2,099 0 0 0.0
2021 Q4 614 3 1 4886.0
2021 Q3 374 0 0 0.0
2021 Q2 305 1 0 3278.7
2021 Q1 1,622 0 0 0.0
2020 Q4 2,099 0 0 0.0
2020 Q3 0 0 0
2020 Q2 410 0 0 0.0
2020 Q1 2,161 0 0 0.0
2019 Q4 1,246 0 0 0.0
2019 Q3 411 0 0 0.0
2019 Q2 689 2 0 2902.8
2019 Q1 608 0 0 0.0
2018 Q4 774 0 0 0.0
2018 Q3 724 0 0 0.0
2018 Q2 1,095 0 0 0.0
2018 Q1 542 0 0 0.0
2017 Q4 452 0 0 0.0
2017 Q3 0 0 0
2017 Q2 274 0 0 0.0
2017 Q1 1,367 0 0 0.0
2016 Q4 272 0 0 0.0
2016 Q3 691 0 0 0.0
2016 Q2 691 0 0 0.0
2016 Q1 2,187 0 0 0.0
2015 Q4 315 0 0 0.0
2015 Q3 0 0 0
2015 Q2 451 0 0 0.0
2015 Q1 1,131 0 0 0.0
2014 Q4 0 0 0
2014 Q3 0 0 0
2014 Q2 277 0 0 0.0
2014 Q1 1,800 0 0 0.0
2013 Q4 554 0 0 0.0
2013 Q3 288 0 0 0.0
2013 Q2 841 2 0 2378.1
2013 Q1 1,339 0 0 0.0
2012 Q4 419 0 0 0.0
2012 Q3 535 0 0 0.0
2012 Q2 910 1 1 1098.9
2012 Q1 1,019 0 0 0.0
2011 Q4 202 0 0 0.0
2011 Q3 349 0 0 0.0
2011 Q2 241 0 0 0.0
2011 Q1 449 2 1 4454.3
2010 Q4 516 0 0 0.0
2010 Q3 338 0 0 0.0
2010 Q2 205 0 0 0.0
2010 Q1 658 0 0 0.0
2009 Q4 529 0 0 0.0
2009 Q3 853 2 0 2344.7
2009 Q2 552 0 0 0.0
2009 Q1 561 0 0 0.0
2007 Q4 0 0 0
2007 Q3 0 0 0
2007 Q2 0 1 0
2007 Q1 0 0 0
2006 Q4 0 0 0
2006 Q3 0 0 0
2006 Q2 646 0 0 0.0
2006 Q1 1,699 1 0 588.6
2005 Q4 328 0 0 0.0
2005 Q3 0 0 0
2005 Q2 706 0 0 0.0
2005 Q1 439 0 0 0.0
2004 Q4 318 0 0 0.0
2004 Q3 4 0 0 0.0
2004 Q2 149 0 0 0.0
2004 Q1 1,843 1 0 542.6
2003 Q4 642 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2015 · 1 incident

March 18, 2015 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
ACA Products Inc · Struck by falling object

Employee was clearing the grizzly with a pry bar and rock landed on his left foot. Foot was swollen and bruised.