Mining Incidents

TRP-Sacramento Plant: 108 MSHA citations Metal/Non-Metal

Controlled by Vulcan Materials Company
Sacramento, Sacramento County, CA  ·  Active
MSHA Mine ID: 0404772

TRP-Sacramento Plant has $17K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
19
Years on record
1987–2023
Latest incident
Apr 2023
Compliance record
MSHA citations since 2000
108
citations
25
significant & substantial
$16,960
proposed penalties
$16,960
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
71
inspections on record
1,128
inspection hours
9.6
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.
108 citations across 1,128 inspection hours.
Source: MSHA inspections data, updated weekly.

TRP-Sacramento Plant has $17K in proposed MSHA penalties and $0 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.
$17K
proposed penalties
$17K
current assessed
$17K
paid to date
$0
outstanding
107 assessments are final orders; 1 contested dockets.
Of $200 in penalties contested before the Commission, $200 was upheld in final decisions.
As of the most recent assessment on 2025-10-01.
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.
23.4%
significant & substantial
13.1%
high negligence or reckless
23.4%
reasonably likely or greater
50.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 18.7% low, 68.2% moderate, 13.1% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
2 citations taken to the federal commission · 2% of citations on record
  • Stood as issued 2 · 100%
100%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 1 decided S&S contests · industry: 79%
0%
Penalty reduction in decided contests
$200 proposed, $200 after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2011-04-21.
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.
Docket Decision Judge Year Proposed / upheld
WEST 2011-917M Default Lesnick 2013 $200 → $200
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2025-10-02
0%
of limit-tested samples over the exposure limit
24
samples
5
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg17
  • Quartz, respirable, >1% Qtz7
Show the individual readings (24)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-10-02 Respirable dust, <.1mg 0 Truck Driver
2025-10-02 Respirable dust, <.1mg 0 Laborer, Bullgang
2025-09-08 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2025-09-08 Respirable dust, <.1mg 0 Supervisor, Co. Official
2020-10-07 Respirable dust, <.1mg 0 Laborer, Bullgang
2020-10-07 Quartz, respirable, >1% Qtz 0.14 Mechanic
2019-11-20 Quartz, respirable, >1% Qtz 0.2 Backhoe Operator
2019-11-20 Quartz, respirable, >1% Qtz 0.79 1.34 0.59 Laborer, Bullgang
2019-11-20 Respirable dust, <.1mg 0 Truck Driver
2016-02-11 Respirable dust, <.1mg 0 Truck Driver
2013-08-22 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-08-22 Respirable dust, <.1mg 0 Supervisor, Co. Official
2009-03-06 Quartz, respirable, >1% Qtz 0.19 0.99 0.19 Mechanic
2009-03-06 Respirable dust, <.1mg 0 Laborer, Bullgang
2009-03-06 Quartz, respirable, >1% Qtz 0.15 1.2 0.13 Laborer, Bullgang
2009-03-06 Respirable dust, <.1mg 0 Laborer, Bullgang
2007-04-18 Respirable dust, <.1mg 0 Welder, etc.
2007-04-18 Quartz, respirable, >1% Qtz 0.16 0.63 0.25 Laborer, Bullgang
2007-04-18 Respirable dust, <.1mg 0 Laborer, Bullgang
2002-03-20 Respirable dust, <.1mg 0 Truck Driver
2002-03-20 Respirable dust, <.1mg 0 Shovel Operator
2002-03-20 Respirable dust, <.1mg 0 Truck Driver
2002-03-20 Quartz, respirable, >1% Qtz 0.46 2.6 0.18 Laborer, Bullgang
2002-03-20 Respirable dust, <.1mg 0 Laborer, Bullgang
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.

TRP-Sacramento Plant 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 1.42 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 * 2.79 2.79 0.000
2022 * 0.00 0.00 0.000
2021 * 3.09 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
* 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.
Ownership history
  1. Sacramento Aggregates Inc 1985 to 1998
  2. Triangle Rock Products Inc 1998 to 1999
  3. CalMat Co. 1999 to 2007
  4. Triangle Rock Products 2007 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 32
2025 33
2024 31
2023 30
2022 29
2021 27
2020 23
2019 26
2018 25
2017 27
2016 26
2015 23
2014 17
2013 17
2012 16
2011 16
2010 16
2009 16
2008 18
2007 18
2006 19
2005 18
2004 19
2003 18
2002 17
2001 17
2000 19
Source: MSHA quarterly employment and production, updated weekly.

TRP-Sacramento Plant sits in Sacramento 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.
Sacramento County, California · Population 1,584,047
0.0%
Mining share of county employment
$88,724
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 Q2 18,448 0 0 0.0
2026 Q1 16,258 0 0 0.0
2025 Q4 16,023 1 0 62.4
2025 Q3 18,893 3 0 158.8
2025 Q2 20,311 0 0 0.0
2025 Q1 18,348 0 0 0.0
2024 Q4 18,240 3 0 164.5
2024 Q3 19,468 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 19,109 0 0 0.0
2024 Q1 16,798 0 0 0.0
2023 Q4 16,441 0 0 0.0
2023 Q3 19,150 3 0 156.7
2023 Q2 20,377 0 0 0.0
2023 Q1 15,617 0 0 0.0
2022 Q4 15,177 0 0 0.0
2022 Q3 17,106 0 0 0.0
2022 Q2 17,113 0 0 0.0
2022 Q1 16,259 2 0 123.0
2021 Q4 14,319 0 0 0.0
2021 Q3 17,033 0 0 0.0
2021 Q2 17,934 0 0 0.0
2021 Q1 15,451 0 0 0.0
2020 Q4 13,714 0 0 0.0
2020 Q3 10,544 0 0 0.0
2020 Q2 11,629 0 0 0.0
2020 Q1 14,268 1 0 70.1
2019 Q4 12,872 1 0 77.7
2019 Q3 16,015 0 0 0.0
2019 Q2 17,674 0 0 0.0
2019 Q1 15,361 0 0 0.0
2018 Q4 16,105 0 0 0.0
2018 Q3 18,074 0 0 0.0
2018 Q2 16,486 0 0 0.0
2018 Q1 14,257 0 0 0.0
2017 Q4 15,360 0 0 0.0
2017 Q3 14,622 2 0 136.8
2017 Q2 14,981 0 0 0.0
2017 Q1 14,675 3 0 204.4
2016 Q4 13,893 0 0 0.0
2016 Q3 16,851 5 1 296.7
2016 Q2 17,798 0 0 0.0
2016 Q1 17,086 1 0 58.5
2015 Q4 14,595 0 0 0.0
2015 Q3 16,995 1 1 58.8
2015 Q2 16,370 0 0 0.0
2015 Q1 13,807 1 0 72.4
2014 Q4 12,111 0 0 0.0
2014 Q3 11,924 2 1 167.7
2014 Q2 10,660 0 0 0.0
2014 Q1 9,541 0 0 0.0
2013 Q4 10,985 1 0 91.0
2013 Q3 11,523 2 1 173.6
2013 Q2 10,353 0 0 0.0
2013 Q1 10,529 0 0 0.0
2012 Q4 8,467 1 0 118.1
2012 Q3 10,056 0 0 0.0
2012 Q2 9,358 1 0 106.9
2012 Q1 7,838 0 0 0.0
2011 Q4 7,973 0 0 0.0
2011 Q3 9,203 5 0 543.3
2011 Q2 8,976 0 0 0.0
2011 Q1 7,044 6 1 851.8
2010 Q4 8,150 0 0 0.0
2010 Q3 7,192 0 0 0.0
2010 Q2 7,526 3 0 398.6
2010 Q1 6,303 0 0 0.0
2009 Q4 6,479 3 1 463.0
2009 Q3 7,645 0 0 0.0
2009 Q2 7,631 2 0 262.1
2009 Q1 7,718 0 0 0.0
2008 Q4 8,655 0 0 0.0
2008 Q3 10,341 4 0 386.8
2008 Q2 10,309 0 0 0.0
2008 Q1 9,332 0 0 0.0
2007 Q4 9,835 1 0 101.7
2007 Q3 10,080 0 0 0.0
2007 Q2 10,671 0 0 0.0
2007 Q1 10,801 0 0 0.0
2006 Q4 11,614 3 1 258.3
2006 Q3 12,993 4 2 307.9
2006 Q2 11,680 0 0 0.0
2006 Q1 11,989 0 0 0.0
2005 Q4 12,038 0 0 0.0
2005 Q3 13,981 0 0 0.0
2005 Q2 12,176 0 0 0.0
2005 Q1 12,330 0 0 0.0
2004 Q4 11,383 0 0 0.0
2004 Q3 12,720 0 0 0.0
2004 Q2 12,351 1 0 81.0
2004 Q1 11,778 0 0 0.0
2003 Q4 11,409 1 0 87.7
2003 Q3 11,959 0 0 0.0
2003 Q2 10,645 0 0 0.0
2003 Q1 10,553 0 0 0.0
2002 Q4 9,287 0 0 0.0
2002 Q3 10,865 0 0 0.0
2002 Q2 10,012 0 0 0.0
2002 Q1 8,640 0 0 0.0
2001 Q4 8,253 3 0 363.5
2001 Q3 9,125 0 0 0.0
2001 Q2 9,428 0 0 0.0
2001 Q1 8,273 0 0 0.0
2000 Q4 10,273 0 0 0.0
2000 Q3 12,637 0 0 0.0
2000 Q2 13,279 14 10 1054.3
2000 Q1 10,436 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

19 on file

2023 · 1 incident

April 7, 2023 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Triangle Rock Products · Over-exertion (Not Elsewhere Classified)

Employee was replacing a troughing roller. During the process the roller began sliding, the employee caught it and felt a pop in EE's lower abdomen.

2021 · 2 incidents

December 22, 2021 CA · Metal/Non-Metal dryer operator, kiln operator, dry plant operator, fluid operator, bed dryer operator OTHER
Triangle Rock Products · (Not Elsewhere Classified)

On 12/22/2021 the employee sustained a stroke on site and later passed away on January 5, 2022 due to natural cause.

August 4, 2021 CA · Metal/Non-Metal miner, prospector, nec SLIP OR FALL OF PERSON
Triangle Rock Products · Over-exertion (Not Elsewhere Classified)

Employee was walking down the catwalk of S-3, when EE turned towards the screen, placing weight on left foot when EE's left ankle rolled. The employee was prescribed work restrictions which are being accommodated.

2020 · 1 incident

February 7, 2020 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver OTHER
Triangle Rock Products · Unclassified, insufficient data

This report is being submitted at MSHA's request on 2/14/2020 as a result of an incident on 2/7/2020. A third party hauler suffered a medical emergency at the mine entrance. Emergency services were called and hauler was taken offsite by an ambulance.

2015 · 2 incidents

November 6, 2015 CA · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant STRIKING OR BUMPING
Triangle Rock Products · Struck against stationary object

On 12/11/15 the employee was taken to the company clinic, was prescribed physical therapy and released to full duty. The employee hopped over a water puddle and struck his head on the bottom of the sand screw tank. He was diagnosed with a neck sprain and shoulder strain. The employee reported the incident on 12/11/15.

January 30, 2015 CA · Metal/Non-Metal dispatcher DISORDERS (REPEATED TRAUMA)
Triangle Rock Products · Over-exertion (Not Elsewhere Classified)

The employee was taken to the Company clinic on 2/2/15, was provided wrist and elbow braces along with physical therapy. Employee alleged pain in L-shoulder, elbow, hand, wrist and neck from repeated opening of a window to issue tickets. She was diagnosed with L-shoulder sprain/strain, neck sprain, L-hand/wrist tenosynovitis, L-elbow/forearm synovitis, L-upper limb mononeuritis.

2009 · 1 incident

March 3, 2009 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Triangle Rock Products · Fall from machine

On 3/3/09 the employee was taken to the hospital and was admitted for more than 24 hours. While the employee was descending ladder on loader, his leg gave out and he fell approximately 4 feet resulting in R-leg and pelvis fractures. (Employee has an underlying medical condition which may have been a causal factor).

2000 · 1 incident

April 19, 2000 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
CalMat Co. · Over-exertion in wielding or throwing objects

EE WENT TO DR ON 4-28-00 AND WAS PALCED ON RESTRICTED DUTY. WHILE USING A PICK UNDER SHAKER, PICK MISSED TARGET, ARM OVEREXTENDED AND TENDON IN RIGHT ARM RIPPED.

1998 · 1 incident

August 12, 1998 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Triangle Rock Products Inc · Fall to the walkway or working surface

SLIPPED ON WET GRASS WHILE OPENING GATE.

1994 · 1 incident

January 17, 1994 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Sacramento Aggregates Inc · Over-exertion in lifting objects

LIFTING WIRE CLOTH FROM ROCK SCREEN TO WALKWAY. FELT SHARP TWINGLE IN BACK.

1993 · 2 incidents

April 26, 1993 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Sacramento Aggregates Inc · Over-exertion (Not Elsewhere Classified)

OPERATING WATER TRUCK-FELT PAIN IN NECK.

January 27, 1993 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Sacramento Aggregates Inc · Over-exertion (Not Elsewhere Classified)

MAN WAS SHOVELING UNDER CONVEYOR #29-FELT RIP IN STOMACH AND BULGE -APPARENT HERNIA.

1990 · 3 incidents

August 7, 1990 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Sacramento Aggregates Inc · Fall from machine

STEPPED OUT OF LOADER ONTO LADDER SLIPPED & FELL JAMMING VERTEBRA CLOSEST TO HIP

July 12, 1990 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Sacramento Aggregates Inc · Caught in, under or between a moving and a stationary object

CRUSHER I BOLT SLIPPED FROM GRASP. FINGER WAS CAUGHT BETWEEN I BOLT AND CRUSHER RIM. LAST JOINT OF RING FINGER WAS BROKEN.

June 5, 1990 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Sacramento Aggregates Inc · Fall from machine

FUELING SCRAPER, SLIPPED AND FELL- PULLED MUSCLE IN RIGHT SHOULDER.

1989 · 2 incidents

September 12, 1989 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator STEPPING OR KNEELING ON OBJECT
Sacramento Aggregates Inc · Struck against stationary object

STEPPED OUT OF LOADER AT END OF SHIFT STEPPED ON ROCK, SPRAINED ANKLE

July 15, 1989 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Sacramento Aggregates Inc · Struck by... (Not Elsewhere Classified)

MAN WAS JACKING UP CONVEYOR TO LEVEL POSITION, JACK SLIPPED, HANDLE OF JACK HIT MAN IN AREA OF RIGHT EYE. FOUR STITCHES WERE TAKEN IN FACIAL SKI AT OUTSIDE EDGE OF THE EYE.

1987 · 2 incidents

October 28, 1987 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Sacramento Aggregates Inc · Caught in, under or between (Not Elsewhere Classified)

ADJUSTING NUT O3 CONE CRUSHER SHIFTED PINCHING LEFT FOOT AGAINST CRUSHER MAIN FRAME. LEFT FOOT WAS SEVERELY BRUISED

September 30, 1987 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Sacramento Aggregates Inc · Over-exertion in pulling or pushing objects

BACK STRAIN CAU8ED BY PULLING ON HANDLE OF 3/4" RATCHET USED IN TIGHTENING BOLTS ON A VIBRATORY FEEDER IN A SAND AND GRAVEL PLANT. EMPLOYEE REPORTED STRAIN TO FOREMAN AFTER TWO HOURS WORK THE NEXT DAY 10-01187.