Sierra Nevada Construction Inc. · Rubbed or abraded
Dirt from forehead was rubbed off and fell into eyes
Portable Rock Plant #1: 11 MSHA citations Metal/Non-Metal
Sierra Nevada Construction Inc.
· Surface
Controlled by
Kevin L Robertson; Craig D Holt
RyePatch,
Pershing County,
NV
·
Abandoned
MSHA Mine ID: 2602649
Portable Rock Plant #1 has $1K 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
- 1
- Years on record
- 2008
- Latest incident
- Aug 2008
Compliance record
MSHA citations since 2008
11
citations
3
significant & substantial
$1,277
proposed penalties
$1,277
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
3
inspections on record
49
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: 49 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 #1 has $1K 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.$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
11 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2009-04-15.
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.27.3%
significant & substantial
0.0%
high negligence or reckless
27.3%
reasonably likely or greater
72.7%
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: 2009-03-27, 17 years ago
ⓘ
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.100%
of limit-tested samples over the exposure limit
1
samples
1
limit-tested
Most sampled contaminants
- Quartz, respirable, >1% Qtz11 over
Show the individual readings (1)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2009-03-27 | Quartz, respirable, >1% Qtz | 1.38 | 0.21 | 6.57 | Crusher Oper/Worker |
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
- Sierra Nevada Construction Inc. 2008 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2009 | 9 |
| 2008 | 8 |
Source: MSHA quarterly employment and production, updated weekly.
Portable Rock Plant #1 sits in Pershing County, Nevada, where the Census mining category is 20.4% 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.Pershing County, Nevada · Population 6,505
20.4%
Mining share of county employment
$72,007
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 |
|---|---|---|---|---|
| 2009 Q3 | 3,353 | 0 | 0 | 0.0 |
| 2009 Q2 | 3,915 | 1 | 0 | 255.4 |
| 2009 Q1 | 1,017 | 6 | 2 | 5899.7 |
| 2008 Q4 | 1,081 | 0 | 0 | 0.0 |
| 2008 Q3 | 5,263 | 2 | 1 | 380.0 |
| 2008 Q2 | 2,099 | 2 | 0 | 952.8 |
No fatalities recorded at this mine.