Mining Incidents
Search Operators Mines Alerts Research Controllers Fatalgrams About
Countries
Peru Chile
English Español
← Back to search

50-3-05 Portable Crushing Plant: 67 MSHA citations Metal/Non-Metal

ACA Products Inc · Surface
Buena Vista, Chaffee County, CO  ·  Active
MSHA Mine ID: 0504257

50-3-05 Portable Crushing Plant has $7K 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 50-3-05 Portable Crushing Plant.

Fatalities
0
Total incidents
3
Years on record
1996–2004
Latest incident
Oct 2004
Compliance record
MSHA citations since 2001
67
citations
12
significant & substantial
$6,751
proposed penalties
$6,751
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 2001
35
inspections on record
477
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: 477 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

50-3-05 Portable Crushing Plant has $7K 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
66 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-05-06.
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.
18.2%
significant & substantial
1.5%
high negligence or reckless
18.2%
reasonably likely or greater
39.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 10.6% low, 87.9% moderate, 1.5% 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: 2016-07-20, 10 years ago
13%
of limit-tested samples over the exposure limit
8
samples
8
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz81 over
Show the individual readings (8)
Date Contaminant Concentration Limit Conc / limit Occupation
2016-07-20 Quartz, respirable, >1% Qtz 0.69 0.67 1.03 Dry Screen Plant Operator
2015-07-22 Quartz, respirable, >1% Qtz 0.19 0.65 0.29 Bobcat Operator
2009-06-09 Quartz, respirable, >1% Qtz 0.85 1.42 0.60 Front-end Loader Operator
2009-06-09 Quartz, respirable, >1% Qtz 0.42 0.74 0.57 Crusher Oper/Worker
2005-12-14 Quartz, respirable, >1% Qtz 0.32 2.14 0.15 Front-end Loader Operator
2005-12-14 Quartz, respirable, >1% Qtz 0.18 0.54 0.33 Crusher Oper/Worker
2002-02-06 Quartz, respirable, >1% Qtz 0.56 1.01 0.55 Crusher Oper/Worker
2002-02-06 Quartz, respirable, >1% Qtz 0.15 1.68 0.09 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 1987 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 6
2025 7
2024 9
2023 6
2022 7
2021 0
2020 0
2019 4
2018 4
2017 5
2016 9
2015 6
2014 9
2013 8
2012 8
2011 5
2010 3
2009 4
2008 7
2007 8
2006 10
2005 8
2004 7
2003 5
2002 5
2001 4
2000 3
Source: MSHA quarterly employment and production, updated weekly.

50-3-05 Portable Crushing 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 399 0 0 0.0
2026 Q1 1,345 0 0 0.0
2025 Q4 1,393 0 0 0.0
2025 Q3 1,122 0 0 0.0
2025 Q2 699 1 1 1430.6
2025 Q1 1,215 0 0 0.0
2024 Q4 1,571 0 0 0.0
2024 Q3 979 0 0 0.0
Show 94 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 845 0 0 0.0
2024 Q1 1,956 0 0 0.0
2023 Q4 1,380 0 0 0.0
2023 Q3 1,090 5 3 4587.2
2023 Q2 494 0 0 0.0
2023 Q1 0 0 0
2022 Q4 1,338 0 0 0.0
2022 Q3 768 0 0 0.0
2021 Q2 0 0 0
2021 Q1 0 0 0
2020 Q4 0 0 0
2020 Q3 0 0 0
2020 Q2 0 0 0
2020 Q1 0 0 0
2019 Q4 0 0 0
2019 Q3 0 0 0
2019 Q2 751 0 0 0.0
2019 Q1 1,345 0 0 0.0
2018 Q4 652 0 0 0.0
2018 Q3 0 0 0
2018 Q2 916 0 0 0.0
2018 Q1 0 0 0
2017 Q4 0 0 0
2017 Q3 0 0 0
2017 Q2 1,604 0 0 0.0
2017 Q1 1,322 0 0 0.0
2016 Q4 2,211 0 0 0.0
2016 Q3 1,386 6 1 4329.0
2016 Q2 2,291 0 0 0.0
2016 Q1 2,560 0 0 0.0
2015 Q4 1,586 0 0 0.0
2015 Q3 1,643 1 0 608.6
2015 Q2 1,742 0 0 0.0
2015 Q1 1,334 0 0 0.0
2014 Q4 1,297 2 0 1542.0
2014 Q3 1,545 0 0 0.0
2014 Q2 1,861 2 1 1074.7
2014 Q1 1,378 7 0 5079.8
2013 Q4 1,146 0 0 0.0
2013 Q3 625 0 0 0.0
2013 Q2 854 0 0 0.0
2013 Q1 1,258 1 1 794.9
2012 Q4 934 0 0 0.0
2012 Q3 1,379 2 0 1450.3
2012 Q2 1,089 0 0 0.0
2012 Q1 1,497 0 0 0.0
2011 Q4 1,719 0 0 0.0
2011 Q3 845 0 0 0.0
2011 Q2 1,049 0 0 0.0
2011 Q1 543 1 0 1841.6
2010 Q4 853 0 0 0.0
2010 Q3 559 0 0 0.0
2010 Q2 680 2 2 2941.2
2010 Q1 539 0 0 0.0
2009 Q4 1,063 0 0 0.0
2009 Q3 1,087 0 0 0.0
2009 Q2 1,302 3 0 2304.1
2009 Q1 375 0 0 0.0
2008 Q4 1,294 0 0 0.0
2008 Q3 1,332 0 0 0.0
2008 Q2 987 1 0 1013.2
2008 Q1 893 0 0 0.0
2007 Q4 1,326 1 0 754.1
2007 Q3 1,353 0 0 0.0
2007 Q2 764 0 0 0.0
2007 Q1 1,218 0 0 0.0
2006 Q4 1,690 1 0 591.7
2006 Q3 1,204 0 0 0.0
2006 Q2 1,095 0 0 0.0
2006 Q1 1,713 0 0 0.0
2005 Q4 1,522 2 0 1314.1
2005 Q3 842 2 1 2375.3
2005 Q2 1,469 0 0 0.0
2005 Q1 1,162 0 0 0.0
2004 Q4 656 0 0 0.0
2004 Q3 811 0 0 0.0
2004 Q2 859 1 0 1164.1
2004 Q1 1,454 6 0 4126.5
2003 Q4 1,497 0 0 0.0
2003 Q3 757 5 0 6605.0
2003 Q2 1,521 0 0 0.0
2003 Q1 2,199 0 0 0.0
2002 Q4 1,929 0 0 0.0
2002 Q3 2,145 0 0 0.0
2002 Q2 2,208 0 0 0.0
2002 Q1 1,624 9 1 5541.9
2001 Q4 1,680 0 0 0.0
2001 Q3 1,295 0 0 0.0
2001 Q2 751 0 0 0.0
2001 Q1 1,129 6 1 5314.4
2000 Q4 1,085 0 0 0.0
2000 Q3 2,277 0 0 0.0
2000 Q2 1,890 0 0 0.0
2000 Q1 1,824 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2004 · 2 incidents

October 4, 2004 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
ACA Products Inc · Struck by... (Not Elsewhere Classified)

Removing Bull Wheel Bolts on Jaw Crusher, employee swung sledge hammer to hit wrench that a second employee was holding. Hammer deflected off of the wheel and hit the second employee's left little finger.

February 26, 2004 CO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY
ACA Products Inc · Caught in, under or between a moving and a stationary object

MINER WAS ASSISTING FOREMAN TO REMOVE PIECE OF IRON FROM BEING STUCK IN THE CONE. MINER'S LITTLE FINGER ON RIGHT HAND WAS PINCHED BETWEEN PIECE OF IRON AND THE CONE. POSSIBLE FRACTURE.

1996 · 1 incident

August 1, 1996 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
ACA Products Inc · Struck by flying object

ATTEMPTING TO REMOVE OVERSIZE ROCK FROM JAW. HE LOWERED A RIPPING TOOTH INTO JAW TO BUMP IT LOSE. THE TEETH BECAME WEDGED BETWEEN ROCK AD PITTMAN. THE ROCK BROKE JABAMY WAS HIT IN THE NOSE BY A PIECE OF FLY ROCK.