Portable Rock Plant @ Hallwood #1224 has $464 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
5
Years on record
2000–2004
Latest incident
Nov 2004
Compliance record
MSHA citations since 2000
8
citations
0
significant & substantial
$464
proposed penalties
$450
paid to date
97% of proposed penalties paid to date, a $14 gap.
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: 159 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 Rock Plant @ Hallwood #1224 has $464 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.
$464
proposed penalties
$450
current assessed
$450
paid to date
$0
outstanding
8 assessments are final orders; 2 contested dockets.
Of $179 in penalties contested before the Commission, $165 was upheld in final decisions.
As of the most recent assessment on 2005-04-19.
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.
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.
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: 2005-04-20, 21 years ago
0%
of limit-tested samples over the exposure limit
7
samples
6
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz6
Respirable dust, <.1mg1
Show the individual readings (7)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2005-04-20
Quartz, respirable, >1% Qtz
0.31
0.91
0.34
Cleanup Man
2005-04-20
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-04-20
Quartz, respirable, >1% Qtz
0.55
0.88
0.63
Crusher Oper/Worker
2005-04-20
Quartz, respirable, >1% Qtz
0.22
1.16
0.19
Cleanup Man
2005-04-20
Quartz, respirable, >1% Qtz
0.5
0.97
0.52
Laborer, Bullgang
2003-04-09
Quartz, respirable, >1% Qtz
0.14
0.73
0.19
Crusher Oper/Worker
2003-04-09
Quartz, respirable, >1% Qtz
0.28
0.77
0.36
Laborer, Bullgang
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.
Portable Rock Plant @ Hallwood #1224 recorded 4.08 reportable injury cases per 100 full-time workers in 2004.
Injury rate, 2004
ⓘThis rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
4.08
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 3.73 and the all-US-mining average was 4.33 cases per 100 workers.
In California, metal and nonmetal mining averaged 4.49 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year
total case rate
days-away
fatal
2004 *
4.08
0.00
0.000
2003 *
0.00
0.00
0.000
2001 *
4.81
0.00
0.000
2000 *
22.35
7.45
0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2005
21
2004
23
2003
22
2002
22
2001
17
2000
28
Source: MSHA quarterly employment and production, updated weekly.
Portable Rock Plant @ Hallwood #1224 sits in Yuba County, California, 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.
Yuba County, California · Population 83,079
0.0%
Mining share of county employment
$73,313
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
2005 Q2
10,503
1
0
95.2
2005 Q1
13,248
0
0
0.0
2004 Q4
13,009
1
0
76.9
2004 Q3
14,092
0
0
0.0
2004 Q2
12,140
0
0
0.0
2004 Q1
9,807
0
0
0.0
2003 Q4
15,048
0
0
0.0
2003 Q3
13,174
0
0
0.0
Show 13 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2003 Q2
13,380
0
0
0.0
2003 Q1
11,910
0
0
0.0
2002 Q3
16,904
0
0
0.0
2002 Q2
14,196
1
0
70.4
2002 Q1
11,704
0
0
0.0
2001 Q4
11,817
0
0
0.0
2001 Q3
12,029
0
0
0.0
2001 Q2
10,067
0
0
0.0
2001 Q1
7,665
0
0
0.0
2000 Q4
5,521
3
0
543.4
2000 Q3
5,151
0
0
0.0
2000 Q2
8,499
2
0
235.3
2000 Q1
7,679
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
5 on file
2004 · 1 incident
November 19, 2004CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
THE EE WAS CUTTING A BELT WITH A UTILITY KNIFE WHEN IT SLIPPED AND CUT INTO RIGHT LEG.
March 17, 2000CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS