Mining Incidents

50-3-03 PORTABLE WASH PLANT II: 7 MSHA citations Metal/Non-Metal

ACA Products Inc · Surface
Leadville, Lake County, CO  ·  Intermittent
MSHA Mine ID: 0504697

50-3-03 PORTABLE WASH PLANT II has $855 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 50-3-03 PORTABLE WASH PLANT II.

Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2008
7
citations
1
significant & substantial
$855
proposed penalties
$855
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2008
8
inspections on record
122
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: 122 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

50-3-03 PORTABLE WASH PLANT II has $855 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.
$855
proposed penalties
$855
current assessed
$855
paid to date
$0
outstanding
7 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-05-13.
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.
14.3%
significant & substantial
0.0%
high negligence or reckless
14.3%
reasonably likely or greater
28.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 28.6% low, 71.4% moderate, 0.0% 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: 2025-08-05
0%
of limit-tested samples over the exposure limit
9
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg3
  • Unlisted Particulate, total, <1% Qtz3
  • Quartz, respirable, >1% Qtz2
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (9)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-08-05 Respirable dust, <.1mg 0 Washer Operator
2025-08-05 Respirable dust, <.1mg 0 Front-end Loader Operator
2012-08-29 Unlisted Particulate, total, <1% Qtz 0.21 Front-end Loader Operator
2012-08-29 Unlisted Particulate, total, <1% Qtz 0.35 Dry Screen Plant Operator
2012-08-29 Unlisted Particulate, total, <1% Qtz 1.07 Front-end Loader Operator
2011-06-30 Unlisted Particulate, respirable, <1% Qtz 0.14 Front-end Loader Operator
2011-06-30 Quartz, respirable, >1% Qtz 0.57 0.93 0.61 Scale Man
2011-06-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-06-30 Quartz, respirable, >1% Qtz 0.25 1.16 0.22 Mechanic
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 2001 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 0
2025 3
2024 0
2023 3
2022 0
2021 0
2020 1
2019 3
2018 0
2017 3
2016 0
2015 1
2013 0
2012 1
2011 3
2010 2
2009 3
2008 7
2001 5
Source: MSHA quarterly employment and production, updated weekly.

50-3-03 PORTABLE WASH PLANT II sits in Lake County, Colorado, where the Census mining category is 3.4% 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.
Lake County, Colorado · Population 7,411
3.4%
Mining share of county employment
$93,655
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 0 0 0
2026 Q1 0 0 0
2025 Q4 0 0 0
2025 Q3 1,166 0 0 0.0
2025 Q2 680 0 0 0.0
2025 Q1 0 0 0
2024 Q4 0 0 0
2024 Q3 0 0 0
Show 52 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 0 3 1
2024 Q1 0 0 0
2023 Q4 0 0 0
2023 Q3 838 0 0 0.0
2023 Q2 605 0 0 0.0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 0 0 0
2022 Q2 0 0 0
2022 Q1 0 0 0
2021 Q4 0 0 0
2021 Q3 0 0 0
2021 Q2 0 0 0
2021 Q1 0 0 0
2020 Q4 0 0 0
2020 Q3 718 0 0 0.0
2020 Q2 0 0 0
2020 Q1 0 0 0
2019 Q4 0 0 0
2019 Q3 538 0 0 0.0
2019 Q2 497 0 0 0.0
2018 Q4 0 0 0
2018 Q3 0 0 0
2018 Q2 0 0 0
2018 Q1 0 0 0
2017 Q4 0 0 0
2017 Q3 544 0 0 0.0
2017 Q2 632 0 0 0.0
2016 Q3 0 0 0
2016 Q2 0 0 0
2016 Q1 0 0 0
2015 Q4 0 0 0
2015 Q3 384 0 0 0.0
2013 Q3 0 0 0
2013 Q2 0 0 0
2013 Q1 0 0 0
2012 Q4 0 0 0
2012 Q3 206 1 0 4854.4
2012 Q2 206 0 0 0.0
2011 Q3 728 0 0 0.0
2011 Q2 331 1 0 3021.1
2010 Q3 234 0 0 0.0
2010 Q2 227 0 0 0.0
2010 Q1 206 0 0 0.0
2009 Q4 206 0 0 0.0
2009 Q3 389 0 0 0.0
2009 Q2 536 0 0 0.0
2009 Q1 208 0 0 0.0
2008 Q4 839 0 0 0.0
2008 Q3 1,841 2 0 1086.4
2001 Q3 1,935 0 0 0.0
2001 Q2 1,832 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.