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: 383 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Mats Mats Quarry 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
18 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2004-03-17.
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.
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: 2002-03-26, 24 years ago
0%
of limit-tested samples over the exposure limit
6
samples
2
limit-tested
Most sampled contaminants
Unlisted Particulate, respirable, <1% Qtz3
Quartz, respirable, >1% Qtz2
Respirable dust, <.1mg1
Show the individual readings (6)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2002-03-26
Respirable dust, <.1mg
0
Front-end Loader Operator
2002-03-26
Unlisted Particulate, respirable, <1% Qtz
0.24
Crusher Oper/Worker
2002-03-26
Unlisted Particulate, respirable, <1% Qtz
0.48
Crusher Oper/Worker
2000-09-13
Unlisted Particulate, respirable, <1% Qtz
0.27
Shovel Operator
2000-09-13
Quartz, respirable, >1% Qtz
0.16
0.2
0.80
Front-end Loader Operator
2000-09-13
Quartz, respirable, >1% Qtz
0.28
0.59
0.47
Truck Driver
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.
Mats Mats Quarry recorded 9.25 reportable injury cases per 100 full-time workers in 2002.
Injury rate, 2002
ⓘ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.
9.25
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 4.17 and the all-US-mining average was 5.05 cases per 100 workers.
In Washington, metal and nonmetal mining averaged 5.28 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.
Year
total case rate
days-away
fatal
2002 *
9.25
0.00
0.000
2001 *
8.50
0.00
0.000
2000 *
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
2007
0
2006
2
2005
4
2004
4
2003
9
2002
11
2001
12
2000
12
Source: MSHA quarterly employment and production, updated weekly.
Mats Mats Quarry sits in Jefferson County, Washington, 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.
Jefferson County, Washington · Population 33,313
0.0%
Mining share of county employment
$71,143
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
2007 Q3
0
0
0
2007 Q1
0
0
0
2006 Q4
35
0
0
0.0
2006 Q3
65
0
0
0.0
2006 Q2
89
0
0
0.0
2006 Q1
81
0
0
0.0
2005 Q4
1,520
0
0
0.0
2005 Q3
315
0
0
0.0
Show 22 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2005 Q2
158
0
0
0.0
2005 Q1
1,039
0
0
0.0
2004 Q4
726
0
0
0.0
2004 Q3
688
0
0
0.0
2004 Q2
171
0
0
0.0
2004 Q1
3,293
4
3
1214.7
2003 Q4
3,215
2
0
622.1
2003 Q3
3,327
0
0
0.0
2003 Q2
5,144
6
2
1166.4
2003 Q1
6,470
0
0
0.0
2002 Q4
5,366
1
0
186.4
2002 Q3
5,421
0
0
0.0
2002 Q2
5,383
0
0
0.0
2002 Q1
5,459
1
1
183.2
2001 Q4
5,189
0
0
0.0
2001 Q3
5,771
2
1
346.6
2001 Q2
6,290
0
0
0.0
2001 Q1
6,282
0
0
0.0
2000 Q4
6,232
0
0
0.0
2000 Q3
6,242
2
2
320.4
2000 Q2
5,571
0
0
0.0
2000 Q1
5,922
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
13 on file
2005 · 1 incident
February 10, 2005WA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
While preforming maintenance, some particles apparently fell inside his safety glasses and got into his eye. The employee thought the particle had come out of his eye, however later in the evening his eye became irritated so he sought medical attention where they removed a piece of rust. There were no restrictions and no lost time at work.
2002 · 1 incident
May 22, 2002WA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Glacier Northwest · Caught in, under or between (Not Elsewhere Classified)
WHILE POSITIONING TRANSMISSION FOR INSTALLATION INTO HAUL TRUCK, TRANSMISSION SLIPPED, PINCHING LEFT INDEX FINGER BETWEEN TRANSMISSION AND CONCRETE FLOOR. EE SENT FOR OBSERVATION, XRAY DETERMI NED SLIGHT FRACTURE TO TIP OF FINGER. SEVERE BRUISING TO FINGERNAIL AREA.
2001 · 1 incident
June 21, 2001WA · Metal/Non-Metalbackhoe operator, trackhoe operator, crane operatorHANDLING OF MATERIALS
MOVING TO DRILL SITE, STEEL FELL OUT OF RACK LIFTED DRILL STEEL INTO CARRIER RACK CAUSING BACK STRAIN. ACCIDENT DUE TO LIFTING. LIFTING CAUSED THORACIC AND BACK STRAIN.
WRENCHING ON A BOLT WITH A RACHET. EMPLOYEE AND INJURED WERE PULLING ON THE RACHET TO TIGHTEN THE BOLT ONT HE CONE (TAKING MAIN SHAFT OUT). THE RACHET SLIPPED OFF THE BOLT AND SMASHED THE FI NGER BETWEEN THE BEAM & THE RACHET.
February 26, 1991WA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDTOOLS (NONPOWERED)
WORKER WAS PRYING A ROCK FROM THE GRIZZLY FEDDER BAR WITH A BAR CAUSING A STRAIN TO HIS SHOULDER.
1990 · 4 incidents
December 17, 1990WA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON
HE SLIPPED ON A SCREEN DECK, CAUSED BY FREEZING WEATHER, WHILE ASSEMBLING A PORTABLE CRUSHING PLANT. HIS LEG WAS WEDGED BETWEEN THE SPRING BRACKET AND THE GEAR HOUSING. THE KNEE BENT SIDEWAY S.