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: 257 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘA Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2012-10-03.
On record since 2012.
Source: MSHA imminent-danger order records, updated weekly.
DECKER ISLAND has $11K in proposed MSHA penalties and $164 outstanding across 1 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.
$11K
proposed penalties
$11K
current assessed
$11K
paid to date
$164
outstanding
53 assessments are final orders; 1 contested dockets.
Of $55 in penalties contested before the Commission, $55 was upheld in final decisions.
As of the most recent assessment on 2024-09-17.
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.
Contested penalties
ⓘA reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
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: 2019-08-21, 7 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
2019-08-21
Respirable dust, <.1mg
0
Truck Driver
2019-08-21
Respirable dust, <.1mg
0
Truck Driver
2015-01-22
Unlisted Particulate, respirable, <1% Qtz
0.42
Mechanic
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.
DECKER ISLAND recorded 0.00 reportable injury cases per 100 full-time workers in 2012.
Injury rate, 2012
ⓘ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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US metal and nonmetal mining average was 2.48 and the all-US-mining average was 2.96 cases per 100 workers.
In California, metal and nonmetal mining averaged 2.28 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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
3
2024
3
2023
5
2022
5
2021
6
2020
4
2019
10
2017
6
2016
8
2015
8
2014
7
2013
12
2012
16
2011
8
2000
2
Source: MSHA quarterly employment and production, updated weekly.
DECKER ISLAND sits in Solano County, California, 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.
Solano County, California · Population 450,824
0.1%
Mining share of county employment
$99,994
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
2026 Q1
240
0
0
0.0
2024 Q4
1,311
0
0
0.0
2024 Q3
925
1
0
1081.1
2023 Q4
1,643
0
0
0.0
2023 Q3
147
0
0
0.0
2023 Q2
6,978
0
0
0.0
2023 Q1
1,827
0
0
0.0
2022 Q4
1,791
0
0
0.0
Show 39 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2022 Q3
748
0
0
0.0
2022 Q2
4,212
0
0
0.0
2022 Q1
2,536
0
0
0.0
2021 Q4
2,758
0
0
0.0
2021 Q3
193
0
0
0.0
2021 Q1
3,265
0
0
0.0
2020 Q4
2,223
0
0
0.0
2020 Q1
0
0
0
2019 Q3
6,549
7
0
1068.9
2019 Q2
5,256
0
0
0.0
2019 Q1
750
0
0
0.0
2017 Q1
477
0
0
0.0
2016 Q4
401
0
0
0.0
2016 Q3
2,940
1
0
340.1
2016 Q2
3,507
0
0
0.0
2016 Q1
606
0
0
0.0
2015 Q4
2,433
0
0
0.0
2015 Q3
2,720
0
0
0.0
2015 Q2
2,568
0
0
0.0
2015 Q1
1,853
1
0
539.7
2014 Q4
2,200
0
0
0.0
2014 Q3
3,464
0
0
0.0
2014 Q2
2,309
1
0
433.1
2014 Q1
1,891
0
0
0.0
2013 Q4
5,084
3
0
590.1
2013 Q3
5,208
0
0
0.0
2013 Q2
3,151
0
0
0.0
2013 Q1
3,172
0
0
0.0
2012 Q4
4,425
13
8
2937.9
2012 Q3
7,539
0
0
0.0
2012 Q2
6,752
0
0
0.0
2012 Q1
5,595
0
0
0.0
2011 Q4
4,655
9
3
1933.4
2011 Q3
3,415
0
0
0.0
2011 Q2
4,263
0
0
0.0
2000 Q4
480
0
0
0.0
2000 Q3
558
0
0
0.0
2000 Q2
501
1
0
1996.0
2000 Q1
533
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
3 on file
2013 · 3 incidents
September 30, 2013CA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSTEPPING OR KNEELING ON OBJECT
The employee stepped down from the dock to the lower work platform, left foot first, at the point his foot came in contact with the lower work platform his right knee popped. Knee sprain, possible ligament damage.
September 18, 2013CA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)
The rope was not properly placed on the dock cleat. This caused the rope to bite or stall. At this point the employee kicked the rope free, there was no way to hold the tension back on the rope causing the rope to slap upward and hit the employee in the hand, resulting in the injury.