Mining Incidents

PORTABLE PLANT #3: 7 MSHA citations Metal/Non-Metal

Controlled by Donald J Nelson
Boise, Ada County, ID  ·  Abandoned
MSHA Mine ID: 1001961

PORTABLE PLANT #3 has $629 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
2
Years on record
2000–2001
Latest incident
Mar 2001
Compliance record
MSHA citations since 2000
7
citations
3
significant & substantial
$629
proposed penalties
$629
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
4
inspections on record
81
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: 81 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 #3 has $629 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.
$629
proposed penalties
$629
current assessed
$629
paid to date
$0
outstanding
7 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2002-06-11.
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.
42.9%
significant & substantial
0.0%
high negligence or reckless
42.9%
reasonably likely or greater
85.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 100.0% 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: 2002-06-11, 24 years ago
0%
of limit-tested samples over the exposure limit
4
samples
2
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
  • Respirable dust, <.1mg1
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (4)
Date Contaminant Concentration Limit Conc / limit Occupation
2002-06-11 Quartz, respirable, >1% Qtz 0.41 0.94 0.44 Crusher Oper/Worker
2002-06-11 Unlisted Particulate, respirable, <1% Qtz 0.24 Front-end Loader Operator
2002-06-11 Respirable dust, <.1mg 0 Truck Driver
2002-06-11 Quartz, respirable, >1% Qtz 0.29 0.71 0.41 Truck Driver
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. Nelson Construction Company 1999 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2002 27
2001 14
2000 42
Source: MSHA quarterly employment and production, updated weekly.

PORTABLE PLANT #3 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
2002 Q3 628 0 0 0.0
2002 Q2 4,408 2 2 453.7
2002 Q1 1,145 0 0 0.0
2001 Q4 0 0 0
2001 Q3 0 0 0
2001 Q2 3,552 0 0 0.0
2001 Q1 5,284 0 0 0.0
2000 Q4 6,571 3 0 456.6
Show 2 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2000 Q3 7,467 0 0 0.0
2000 Q1 4,038 2 1 495.3
No fatalities recorded at this mine.

Reportable incidents

2 on file

2001 · 1 incident

March 5, 2001 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Nelson Construction Company · Over-exertion in lifting objects

CARRYING HEAVY IRON UP LADDER STRAINED BACK.

2000 · 1 incident

October 31, 2000 ID · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Nelson Construction Company · Struck by... (Not Elsewhere Classified)

CUTTING A PIECE OF RUBBER WITH A UTILITY KNIFE, IT SLIPPED, CUTTING FINGER WHICH REQUIRED STITCHES.