Mining Incidents

PORTABLE PLANT #2: 10 MSHA citations Metal/Non-Metal

Controlled by Donald J Nelson
Boise, Ada County, ID  ·  Abandoned
MSHA Mine ID: 1001944

PORTABLE PLANT #2 has $910 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
7
Years on record
2000–2004
Latest incident
Mar 2004
Compliance record
MSHA citations since 2001
10
citations
4
significant & substantial
$910
proposed penalties
$910
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
7
inspections on record
116
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: 116 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 PLANT #2 has $910 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.
$910
proposed penalties
$910
current assessed
$910
paid to date
$0
outstanding
10 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2003-05-28.
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.
40.0%
significant & substantial
0.0%
high negligence or reckless
30.0%
reasonably likely or greater
70.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 20.0% low, 80.0% 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: 2004-06-16, 22 years ago
29%
of limit-tested samples over the exposure limit
9
samples
7
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz72 over
  • Unlisted Particulate, respirable, <1% Qtz2
Show the individual readings (9)
Date Contaminant Concentration Limit Conc / limit Occupation
2003-05-28 Quartz, respirable, >1% Qtz 1.51 1.13 1.34 Front-end Loader Operator
2003-05-28 Quartz, respirable, >1% Qtz 1.16 0.77 1.51 Laborer, Bullgang
2004-06-16 Unlisted Particulate, respirable, <1% Qtz 0.75 Cleanup Man
2004-06-16 Quartz, respirable, >1% Qtz 0.44 1.03 0.43 Crusher Oper/Worker
2004-06-16 Quartz, respirable, >1% Qtz 0.26 0.55 0.47 Bulldozer Operator
2003-05-28 Quartz, respirable, >1% Qtz 0.55 0.96 0.57 Bulldozer Operator
2002-03-07 Quartz, respirable, >1% Qtz 0.19 1.21 0.16 Crusher Oper/Worker
2002-03-07 Unlisted Particulate, respirable, <1% Qtz 0.31 Front-end Loader Operator
2002-03-07 Quartz, respirable, >1% Qtz 0.18 0.6 0.30 Cleanup Man
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 PLANT #2 recorded 22.96 reportable injury cases per 100 full-time workers in 2000.

Injury rate, 2000
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.
22.96
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 4.77 and the all-US-mining average was 5.64 cases per 100 workers.
In Idaho, metal and nonmetal mining averaged 8.97 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.
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.
Ownership history
  1. Nelson Construction Company 1998 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2004 5
2003 9
2002 27
2001 31
2000 16
Source: MSHA quarterly employment and production, updated weekly.

PORTABLE PLANT #2 sits in Ada County, Idaho, 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.
Ada County, Idaho · Population 508,052
0.1%
Mining share of county employment
$88,907
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
2004 Q2 2,638 0 0 0.0
2004 Q1 1,310 0 0 0.0
2003 Q4 849 0 0 0.0
2003 Q3 1,399 0 0 0.0
2003 Q2 1,492 5 3 3351.2
2003 Q1 938 0 0 0.0
2002 Q4 5,927 0 0 0.0
2002 Q3 2,094 0 0 0.0
Show 10 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2002 Q2 5,100 0 0 0.0
2002 Q1 2,892 1 0 345.8
2001 Q4 603 0 0 0.0
2001 Q3 5,707 4 1 700.9
2001 Q2 5,397 0 0 0.0
2001 Q1 4,078 0 0 0.0
2000 Q4 5,523 0 0 0.0
2000 Q3 7,562 0 0 0.0
2000 Q2 7,848 0 0 0.0
2000 Q1 5,201 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

7 on file

2004 · 1 incident

2003 · 1 incident

July 10, 2003 ID · Metal/Non-Metal mine manager, mine foreman, mine owner FALLING/SLIDING/ROLLING MATERIALS
Nelson Construction Company · Struck by falling object

EE WAS WORKING PUTTING A WIPER ON FEED BELT WHEN A ROCK WEIGHING APPROX. 50 LBS FELL OFF ABOVE HIM LANDING ON HIS FOOT FRACTURING HIS ANKLE. THE ROCK FELL APPROX. 4'.

2002 · 1 incident

May 10, 2002 ID · Metal/Non-Metal backhoe operator, trackhoe operator, crane operator HANDLING OF MATERIALS
Nelson Construction Company · Struck by falling object

WATER PIPE BROKE LOOSE SCRAPING THE EE'S LEG. THIS WAS THOUGHT TO BE A FIRST AID INJURY BUT THE EMPLOYEE LATER WENT TO THE DOCTOR DUE TO INFECTION IN THE LEG.

2001 · 1 incident

April 19, 2001 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Nelson Construction Company · Struck by flying object

ROCK FLEW OUT OF JAW WHILE EE WAS DISLODGING LARGE ROCK CUTTING HIS ARM.

2000 · 3 incidents

June 27, 2000 ID · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Nelson Construction Company · Struck by... (Not Elsewhere Classified)

WRENCH SLIPPED KNOCKING OUT 2 FRONT TEETH

May 15, 2000 ID · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Nelson Construction Company · Struck by... (Not Elsewhere Classified)

EE'S WERE REMOVING C SPEED REDUCER WHEN THE HAMMER SLIPPED HITTING EE IN THE HEAD. ALTHOUGH HARD HATS ARE PROVIDED AND MANDATORY TO WEAR, HIS HAD SLIPPED OFF WHILE WORKING.