Mining Incidents
Search Operators Mines Alerts Research Controllers Fatalgrams About
English Español
← Back to search

Tri County Materials Inc. Metal/Non-Metal

Mesa, Graham County, AZ  ·  Active
MSHA Mine ID: 0200728

Tri County Materials Inc. has $77K in proposed MSHA penalties and $2K outstanding across 3 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Tri County Materials Inc..

Fatalities
0
Total incidents
6
Years on record
1984–2022
Latest incident
Jan 2022
Compliance record
MSHA citations since 2002
179
citations
41
significant & substantial
$77,123
proposed penalties
$66,832
paid to date
87% of proposed penalties paid to date, a $10,291 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
80
inspections on record
912
inspection hours
n/a
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: 912 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Tri County Materials Inc. has $77K in proposed MSHA penalties and $2K outstanding across 3 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.
$77K
proposed penalties
$69K
current assessed
$67K
paid to date
$2K
outstanding
177 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2026-03-04.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also the operator's enforcement record
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
2025 Q4 4,400 0 0 0.0
2025 Q3 7,495 1 0 133.4
2025 Q2 7,244 0 0 0.0
2025 Q1 7,416 5 1 674.2
2024 Q4 7,237 0 0 0.0
2024 Q3 7,128 2 0 280.6
2024 Q2 7,305 0 0 0.0
2024 Q1 9,035 3 0 332.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 7,183 0 0 0.0
2023 Q3 6,513 0 0 0.0
2023 Q2 5,828 5 2 857.9
2023 Q1 5,951 1 0 168.0
2022 Q4 5,685 0 0 0.0
2022 Q3 5,296 1 0 188.8
2022 Q2 6,036 0 0 0.0
2022 Q1 5,478 0 0 0.0
2021 Q4 4,825 0 0 0.0
2021 Q3 5,099 1 1 196.1
2021 Q2 5,102 0 0 0.0
2021 Q1 4,853 0 0 0.0
2020 Q4 4,744 0 0 0.0
2020 Q3 5,133 0 0 0.0
2020 Q2 4,349 0 0 0.0
2020 Q1 4,606 0 0 0.0
2019 Q4 4,326 4 0 924.6
2019 Q3 4,107 0 0 0.0
2019 Q2 4,633 5 3 1079.2
2019 Q1 3,954 1 0 252.9
2018 Q4 4,278 0 0 0.0
2018 Q3 4,565 0 0 0.0
2018 Q2 4,842 2 0 413.1
2018 Q1 4,298 6 0 1396.0
2017 Q4 3,818 0 0 0.0
2017 Q3 3,800 5 0 1315.8
2017 Q2 4,079 0 0 0.0
2017 Q1 3,610 6 1 1662.0
2016 Q4 3,950 0 0 0.0
2016 Q3 3,943 1 0 253.6
2016 Q2 3,917 0 0 0.0
2016 Q1 4,110 0 0 0.0
2015 Q4 4,115 14 4 3402.2
2015 Q3 4,352 11 5 2527.6
2015 Q2 4,217 0 0 0.0
2015 Q1 3,735 5 0 1338.7
2014 Q4 4,694 0 0 0.0
2014 Q3 3,990 9 1 2255.6
2014 Q2 3,836 0 0 0.0
2014 Q1 3,822 6 3 1569.9
2013 Q4 4,194 0 0 0.0
2013 Q3 4,074 13 5 3191.0
2013 Q2 4,120 0 0 0.0
2013 Q1 4,042 8 2 1979.2
2012 Q4 3,964 1 0 252.3
2012 Q3 4,223 0 0 0.0
2012 Q2 4,027 6 4 1489.9
2012 Q1 3,945 0 0 0.0
2011 Q4 3,919 3 2 765.5
2011 Q3 4,755 0 0 0.0
2011 Q2 4,740 2 0 421.9
2011 Q1 4,814 0 0 0.0
2010 Q4 4,769 2 0 419.4
2010 Q3 6,297 0 0 0.0
2010 Q2 5,298 0 0 0.0
2010 Q1 4,453 3 0 673.7
2009 Q4 4,548 0 0 0.0
2009 Q3 4,940 1 0 202.4
2009 Q2 5,136 7 1 1362.9
2009 Q1 5,056 0 0 0.0
2008 Q4 5,769 5 0 866.7
2008 Q3 6,665 0 0 0.0
2008 Q2 6,749 3 0 444.5
2008 Q1 6,110 4 0 654.7
2007 Q4 6,154 0 0 0.0
2007 Q3 6,698 1 1 149.3
2007 Q2 6,173 2 0 324.0
2007 Q1 4,523 0 0 0.0
2006 Q4 6,545 0 0 0.0
2006 Q3 5,154 0 0 0.0
2006 Q2 4,625 0 0 0.0
2006 Q1 4,060 0 0 0.0
2005 Q4 4,279 11 3 2570.7
2005 Q3 4,949 0 0 0.0
2005 Q2 4,919 2 0 406.6
2005 Q1 3,437 0 0 0.0
2004 Q4 4,242 0 0 0.0
2004 Q3 3,733 0 0 0.0
2004 Q2 4,603 0 0 0.0
2004 Q1 3,260 0 0 0.0
2003 Q4 5,258 0 0 0.0
2003 Q3 4,844 0 0 0.0
2003 Q2 4,383 0 0 0.0
2003 Q1 4,397 0 0 0.0
2002 Q4 5,308 0 0 0.0
2002 Q3 6,376 9 1 1411.5
2002 Q2 6,737 1 1 148.4
2002 Q1 6,460 0 0 0.0
2001 Q4 6,008 0 0 0.0
2001 Q3 4,536 0 0 0.0
2001 Q2 4,859 0 0 0.0
2001 Q1 3,140 0 0 0.0
2000 Q4 4,066 0 0 0.0
2000 Q3 3,727 0 0 0.0
2000 Q2 3,772 0 0 0.0
2000 Q1 2,468 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

6 on file

2022 · 1 incident

January 28, 2022 AZ · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Tri County Materials Inc · Struck against a moving object

On 1/28/22 a Ready mix concrete truck descended down a 10% grade mine road when the brakes of the truck became compromised. The driver lost control and the truck tipped over. IE was a passenger in training and suffered a broken leg in the accident.

2019 · 1 incident

April 2, 2019 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Tri County Materials Inc · Struck against stationary object

Working on replacing belts on crusher. A ratchet slipped off the bolt head, another bolt that had not been removed was sticking out below, employee's thumb struck it and severely lacerated below the nail.

2017 · 2 incidents

February 28, 2017 AZ · Metal/Non-Metal trespasser POWERED HAULAGE
Tri County Materials Inc · Struck against a moving object

On Feb 28 at about 6:30 the loader operator discovered a fatal vehicle accident on the south side of the mine pit. The vehicle crashed onto mine site from a public road.

February 23, 2017 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Tri County Materials Inc · Struck by falling object

Employee was helping change out troughing rollers on the crusher. One was standing on end, the wind gusted and blew it over onto employee's foot.

2006 · 1 incident

July 9, 2006 AZ · Metal/Non-Metal mechanic helper HANDTOOLS (NONPOWERED)
Tri County Materials Inc · Struck by... (Not Elsewhere Classified)

Employee states while holding tube while fellow employee hammered same with bowling pin, he was struck by pin.

1984 · 1 incident

December 19, 1984 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
W A Morris Sand & Gravel Company Inc · Caught in, under or between (Not Elsewhere Classified)

BELT QUIT WE WERE TRYING TO GET IT STARTED, OVERALL OR GLOVE GOT CAUGHT IN BELT TO HEADPULLY

For insurers, brokers, and safety consultants

The full compliance file on Tri County Materials Inc.

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.

Get the report ($149) See a sample report Monitor a whole book of operators, $99/mo