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: 337 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
RIVER PLANT has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
28 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2009-07-01.
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.
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: 2003-04-09, 23 years ago
3
samples
0
limit-tested
Most sampled contaminants
Respirable dust, <.1mg2
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (3)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2003-04-09
Respirable dust, <.1mg
0
Dry Screen Plant Operator
2003-04-09
Unlisted Particulate, respirable, <1% Qtz
0.14
Front-end Loader Operator
2002-05-16
Respirable dust, <.1mg
0
Front-end Loader Operator
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2016
1
2012
1
2011
1
2010
1
2009
1
2008
1
2007
1
2006
1
2005
1
2004
2
2003
2
2002
2
2001
2
2000
2
Source: MSHA quarterly employment and production, updated weekly.
RIVER PLANT sits in Kern County, California, where the Census mining category is 2.3% 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.
Kern County, California · Population 910,433
2.3%
Mining share of county employment
$67,660
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
2016 Q4
72
0
0
0.0
2016 Q3
72
0
0
0.0
2012 Q4
0
0
0
2012 Q3
18
0
0
0.0
2012 Q2
29
0
0
0.0
2012 Q1
103
0
0
0.0
2011 Q4
116
0
0
0.0
2011 Q3
92
0
0
0.0
Show 46 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2011 Q2
68
0
0
0.0
2011 Q1
242
0
0
0.0
2010 Q4
217
0
0
0.0
2010 Q3
187
0
0
0.0
2010 Q2
204
0
0
0.0
2010 Q1
187
0
0
0.0
2009 Q4
216
0
0
0.0
2009 Q3
246
1
0
4065.0
2009 Q2
387
0
0
0.0
2009 Q1
291
0
0
0.0
2008 Q4
269
1
0
3717.5
2008 Q3
401
2
1
4987.5
2008 Q2
455
0
0
0.0
2008 Q1
498
0
0
0.0
2007 Q4
638
0
0
0.0
2007 Q3
637
0
0
0.0
2007 Q2
568
0
0
0.0
2007 Q1
128
0
0
0.0
2006 Q4
646
0
0
0.0
2006 Q3
529
0
0
0.0
2006 Q2
674
0
0
0.0
2006 Q1
633
0
0
0.0
2005 Q4
608
1
0
1644.7
2005 Q3
672
0
0
0.0
2005 Q2
688
1
0
1453.5
2005 Q1
1,062
0
0
0.0
2004 Q4
911
1
0
1097.7
2004 Q3
1,363
0
0
0.0
2004 Q2
920
1
0
1087.0
2004 Q1
1,003
0
0
0.0
2003 Q4
889
0
0
0.0
2003 Q3
1,026
0
0
0.0
2003 Q2
1,046
2
0
1912.0
2003 Q1
958
0
0
0.0
2002 Q4
965
4
0
4145.1
2002 Q3
896
0
0
0.0
2002 Q2
846
1
0
1182.0
2002 Q1
917
6
1
6543.1
2001 Q4
986
0
0
0.0
2001 Q3
925
2
0
2162.2
2001 Q2
1,106
0
0
0.0
2001 Q1
1,042
0
0
0.0
2000 Q4
794
0
0
0.0
2000 Q3
1,158
0
0
0.0
2000 Q2
953
0
0
0.0
2000 Q1
995
5
2
5025.1
No fatalities recorded at this mine.
Reportable incidents
1 on file
2000 · 1 incident
March 10, 2000CA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)