Portable Screen Plant: 31 MSHA citations Metal/Non-Metal
Portable Screen Plant has $7K in proposed MSHA penalties and $0 outstanding across 2 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2000
31
citations
16
significant & substantial
$7,024
proposed penalties
$5,909
paid to date
84% of proposed penalties paid to date, a $1,115 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
12
inspections on record
148
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: 148 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 Screen Plant has $7K in proposed MSHA penalties and $0 outstanding across 2 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
$6K
current assessed
$6K
paid to date
$0
outstanding
27 assessments are final orders; 2 contested dockets.
Of $2K in penalties contested before the Commission, $1K was upheld in final decisions.
As of the most recent assessment on 2025-04-29.
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.51.6%
significant & substantial
6.5%
high negligence or reckless
48.4%
reasonably likely or greater
67.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 9.7% low, 83.9% moderate, 6.5% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
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 |
|---|---|---|---|---|
| CENT20020192M | Settlement | Barbour | 2002 | $2K → $984 |
| CENT20020225M | Settlement | Zielinski | 2002 | $936 → $400 |
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: 2025-05-07
ⓘ
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.5
samples
0
limit-tested
Most sampled contaminants
- Respirable dust, <.1mg5
Show the individual readings (5)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2025-05-07 | Respirable dust, <.1mg | 0 | Rotary Bucket Ex. Operator | ||
| 2025-05-07 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2025-05-07 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2025-05-07 | Respirable dust, <.1mg | 0 | Rotary Bucket Ex. Operator | ||
| 2025-05-07 | Respirable dust, <.1mg | 0 | Supervisor, Co. Official |
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
- Webster Scale 2000 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2011 | 1 |
| 2010 | 2 |
| 2009 | 1 |
| 2008 | 1 |
| 2007 | 1 |
| 2005 | 0 |
| 2004 | 0 |
| 2003 | 4 |
| 2002 | 3 |
| 2001 | 3 |
| 2000 | 3 |
Source: MSHA quarterly employment and production, updated weekly.
Portable Screen Plant sits in Day County, South Dakota, where the Census mining category is 0.1% 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.Day County, South Dakota · Population 5,460
0.1%
Mining share of county employment
$62,270
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 |
|---|---|---|---|---|
| 2011 Q4 | 30 | 0 | 0 | 0.0 |
| 2011 Q1 | 0 | 0 | 0 | |
| 2010 Q4 | 0 | 0 | 0 | |
| 2010 Q3 | 444 | 0 | 0 | 0.0 |
| 2010 Q2 | 1,623 | 3 | 3 | 1848.4 |
| 2010 Q1 | 0 | 0 | 0 | |
| 2009 Q4 | 552 | 0 | 0 | 0.0 |
| 2009 Q3 | 0 | 0 | 0 |
Show 26 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2009 Q2 | 0 | 0 | 0 | |
| 2009 Q1 | 0 | 0 | 0 | |
| 2008 Q4 | 271 | 1 | 0 | 3690.0 |
| 2008 Q3 | 355 | 0 | 0 | 0.0 |
| 2008 Q1 | 0 | 0 | 0 | |
| 2007 Q4 | 0 | 0 | 0 | |
| 2007 Q3 | 202 | 0 | 0 | 0.0 |
| 2005 Q1 | 0 | 0 | 0 | |
| 2004 Q4 | 0 | 0 | 0 | |
| 2004 Q3 | 0 | 0 | 0 | |
| 2004 Q2 | 0 | 0 | 0 | |
| 2004 Q1 | 0 | 0 | 0 | |
| 2003 Q4 | 133 | 0 | 0 | 0.0 |
| 2003 Q3 | 132 | 0 | 0 | 0.0 |
| 2003 Q2 | 52 | 0 | 0 | 0.0 |
| 2003 Q1 | 0 | 0 | 0 | |
| 2002 Q4 | 192 | 0 | 0 | 0.0 |
| 2002 Q3 | 118 | 0 | 0 | 0.0 |
| 2002 Q2 | 274 | 0 | 0 | 0.0 |
| 2002 Q1 | 93 | 0 | 0 | 0.0 |
| 2001 Q4 | 552 | 6 | 4 | 10869.6 |
| 2001 Q3 | 634 | 0 | 0 | 0.0 |
| 2001 Q2 | 133 | 4 | 3 | 30075.2 |
| 2001 Q1 | 0 | 0 | 0 | |
| 2000 Q4 | 406 | 0 | 0 | 0.0 |
| 2000 Q3 | 996 | 5 | 2 | 5020.1 |
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.