Crystal Creek Aggregates has $20K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
1
Total incidents
5
Years on record
1998–2022
Latest incident
Dec 2022
Compliance record
MSHA citations since 2000
133
citations
16
significant & substantial
$19,658
proposed penalties
$19,658
paid to date
100% of proposed penalties paid to date, a $0 gap.
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: 994 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Crystal Creek Aggregates has $20K 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.
$20K
proposed penalties
$20K
current assessed
$20K
paid to date
$0
outstanding
131 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-06-03.
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: 2026-06-03
0%
of limit-tested samples over the exposure limit
19
samples
4
limit-tested
Most sampled contaminants
Respirable dust, <.1mg15
Quartz, respirable, >1% Qtz4
Show the individual readings (19)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-06-03
Respirable dust, <.1mg
0
Laborer, Bullgang
2023-04-26
Quartz, respirable, >1% Qtz
0.3
0.94
0.32
Crusher Oper/Worker
2023-04-26
Respirable dust, <.1mg
0
Front-end Loader Operator
2020-11-10
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-10-24
Respirable dust, <.1mg
0
Front-end Loader Operator
2017-05-09
Respirable dust, <.1mg
0
Front-end Loader Operator
2017-05-09
Respirable dust, <.1mg
0
Laborer, Bullgang
2016-04-20
Quartz, respirable, >1% Qtz
0.25
0.7
0.36
Laborer, Bullgang
2016-04-20
Quartz, respirable, >1% Qtz
0.17
0.71
0.24
Laborer, Bullgang
2015-07-08
Respirable dust, <.1mg
0
Front-end Loader Operator
2015-07-08
Quartz, respirable, >1% Qtz
0.22
0.8
0.28
Laborer, Bullgang
2013-05-01
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-03-05
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-03-05
Respirable dust, <.1mg
0
Scale Man
2005-05-04
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-05-04
Respirable dust, <.1mg
0
Supervisor, Co. Official
2005-05-04
Respirable dust, <.1mg
0
Laborer, Bullgang
2005-05-04
Respirable dust, <.1mg
0
Laborer, Bullgang
2005-05-04
Respirable dust, <.1mg
0
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.
Crystal Creek Aggregates recorded 0.00 reportable injury cases per 100 full-time workers in 2025.
Injury rate, 2025
ⓘ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
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In California, metal and nonmetal mining averaged 1.43 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
2025 *
0.00
0.00
0.000
2024 *
0.00
0.00
0.000
2023 *
0.00
0.00
0.000
2007 *
0.00
0.00
0.000
2006 *
8.51
8.51
0.000
2005 *
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
10
2023
9
2022
7
2021
9
2020
9
2019
9
2018
9
2017
7
2016
8
2015
7
2014
6
2013
6
2012
6
2011
7
2010
7
2009
7
2008
9
2007
12
2006
13
2005
12
2004
8
2003
10
2002
11
2001
7
2000
9
Source: MSHA quarterly employment and production, updated weekly.
Crystal Creek Aggregates sits in Shasta 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.
Shasta County, California · Population 181,554
0.1%
Mining share of county employment
$71,931
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
EE WAS STANDING BELOW THE DRY SCREENING PLANT. WHILE COWORKER HAD STARTED CHANGING SCREENS. THE 4'X5' SCREEN WAS ACCIDENTALLY DROPPED AND STRUCK EE IN THE BACK OF THE HEAD KNOCKING HIM TO THE GROUND, RESULTING IN A SKULL FRACTURE.
Reportable incidents
4 on file (excluding fatalities above)
2022 · 1 incident
December 16, 2022CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
The employee (#1) contacted another employee (#2) to relieve ee from the front end loader because ee wasn't feeling well. Employee (#1) came to the office to rest. EE became pale, felt shortness of breath, and started feeling numbness throughout whole body. EE lay down in the recovery position and the office manager called for EMS
March 16, 2016CA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)
Employee was removing rocks from jaw crusher with digging bar. The bar slipped loose from a rock, causing the miner to lose balance and pinch left ring finger between the digging bar and safety rail.
2006 · 1 incident
February 23, 2006CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS