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: 696 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: 2019-07-02.
On record since 2019.
Source: MSHA imminent-danger order records, updated weekly.
Conser Quarry has $34K in proposed MSHA penalties and $2K 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.
$34K
proposed penalties
$29K
current assessed
$27K
paid to date
$2K
outstanding
186 assessments are final orders; 1 contested dockets.
Of $8K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2026-03-10.
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: 2025-02-19
0%
of limit-tested samples over the exposure limit
17
samples
5
limit-tested
Most sampled contaminants
Unlisted Particulate, respirable, <1% Qtz6
Quartz, respirable, >1% Qtz5
Respirable dust, <.1mg5
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (17)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-02-19
Quartz, respirable, >1% Qtz
0.17
Crusher Oper/Worker
2025-02-19
Nuisance dust, respirable, <1% Qtz
0.29
10
0.03
Front-end Loader Operator
2020-07-01
Respirable dust, <.1mg
0
Crusher Oper/Worker
2020-07-01
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-09-09
Unlisted Particulate, respirable, <1% Qtz
0.21
Crusher Oper/Worker
2016-09-09
Unlisted Particulate, respirable, <1% Qtz
0.26
Front-end Loader Operator
2016-09-09
Quartz, respirable, >1% Qtz
1.31
3.04
0.43
Welder, etc.
2013-06-04
Respirable dust, <.1mg
0
Truck Driver
2013-06-04
Respirable dust, <.1mg
0
Front-end Loader Operator
2002-05-16
Unlisted Particulate, respirable, <1% Qtz
0.43
Front-end Loader Operator
2002-05-16
Quartz, respirable, >1% Qtz
0.35
2.26
0.15
Cleanup Man
2002-05-16
Respirable dust, <.1mg
0
Front-end Loader Operator
2001-05-23
Quartz, respirable, >1% Qtz
0.15
1.49
0.10
Crusher Oper/Worker
2001-05-23
Unlisted Particulate, respirable, <1% Qtz
0.24
Front-end Loader Operator
2001-05-23
Quartz, respirable, >1% Qtz
0.36
2.71
0.13
Front-end Loader Operator
2001-05-23
Unlisted Particulate, respirable, <1% Qtz
0.22
Welder, etc.
2001-05-23
Unlisted Particulate, respirable, <1% Qtz
0.23
Supervisor, Co. Official
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.
Conser Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 2023.
Injury rate, 2023
ⓘ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 1.78 and the all-US-mining average was 2.10 cases per 100 workers.
In Oregon, metal and nonmetal mining averaged 1.50 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.
Year
total case rate
days-away
fatal
2023 *
0.00
0.00
0.000
2022 *
0.00
0.00
0.000
2021 *
0.00
0.00
0.000
2020 *
0.00
0.00
0.000
2019 *
0.00
0.00
0.000
2018 *
0.00
0.00
0.000
2017 *
0.00
0.00
0.000
2015 *
0.00
0.00
0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
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
10
2025
9
2024
8
2023
11
2022
11
2021
11
2020
12
2019
12
2018
13
2017
12
2016
8
2015
8
2014
8
2013
10
2012
9
2008
9
2007
10
2006
10
2005
10
2004
11
2003
10
2002
11
2001
13
2000
14
Source: MSHA quarterly employment and production, updated weekly.
Conser Quarry sits in Lane County, Oregon, 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.
Lane County, Oregon · Population 382,628
0.1%
Mining share of county employment
$69,311
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