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: 78 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 has $115 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.
$115
proposed penalties
$115
current assessed
$115
paid to date
$0
outstanding
2 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2004-12-07.
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 controller and operator history, updated weekly.
Workforce and production
Year
Employees
2006
3
2005
3
2004
2
2003
2
2002
4
2001
3
2000
2
Source: MSHA quarterly employment and production, updated weekly.
Portable Plant sits in Sonoma 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.
Sonoma County, California · Population 485,642
0.0%
Mining share of county employment
$102,840
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
2006 Q4
180
0
0
0.0
2006 Q3
181
0
0
0.0
2006 Q2
103
0
0
0.0
2006 Q1
163
0
0
0.0
2005 Q4
171
0
0
0.0
2005 Q3
187
0
0
0.0
2005 Q2
172
0
0
0.0
2005 Q1
178
0
0
0.0
Show 20 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2004 Q4
199
1
0
5025.1
2004 Q3
274
0
0
0.0
2004 Q2
82
0
0
0.0
2004 Q1
120
0
0
0.0
2003 Q4
244
0
0
0.0
2003 Q3
160
0
0
0.0
2003 Q2
240
0
0
0.0
2003 Q1
0
0
0
2002 Q4
260
0
0
0.0
2002 Q3
48
0
0
0.0
2002 Q2
1,289
1
0
775.8
2002 Q1
1,622
0
0
0.0
2001 Q4
330
0
0
0.0
2001 Q3
1,101
0
0
0.0
2001 Q2
354
0
0
0.0
2001 Q1
1,043
0
0
0.0
2000 Q4
337
0
0
0.0
2000 Q3
0
0
0
2000 Q2
114
0
0
0.0
2000 Q1
0
0
0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2006 · 1 incident
May 11, 2006CA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON