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Morris Ravine Mine Metal/Non-Metal

Controlled by MRLLC Investors LTD
oroville, Butte County, CA  ·  Active
MSHA Mine ID: 0405407

Morris Ravine Mine has $132K in proposed MSHA penalties and $27K outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
7
Years on record
2001–2014
Latest incident
May 2014
Compliance record
MSHA citations since 2001
285
citations
58
significant & substantial
$132,491
proposed penalties
$91,007
paid to date
69% of proposed penalties paid to date, a $41,484 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
104
inspections on record
1,536
inspection hours
18.6
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.
285 citations across 1,536 inspection hours.
Source: MSHA inspections data, updated weekly.

Morris Ravine Mine has $132K in proposed MSHA penalties and $27K outstanding across 5 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.
$132K
proposed penalties
$118K
current assessed
$91K
paid to date
$27K
outstanding
269 assessments are final orders; 5 contested dockets.
As of the most recent assessment on 2026-04-23.
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 3,013 3 0 995.7
2025 Q3 4,554 0 0 0.0
2025 Q2 4,603 3 0 651.7
2025 Q1 1,877 3 0 1598.3
2024 Q4 2,766 0 0 0.0
2024 Q3 3,404 0 0 0.0
2024 Q2 3,051 1 0 327.8
2024 Q1 2,471 0 0 0.0
Show 94 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 3,009 10 0 3323.4
2023 Q3 2,859 0 0 0.0
2023 Q2 3,469 11 1 3170.9
2023 Q1 2,293 7 1 3052.8
2022 Q4 3,332 0 0 0.0
2022 Q3 3,770 3 3 795.8
2022 Q2 2,781 0 0 0.0
2022 Q1 3,571 0 0 0.0
2021 Q4 4,044 4 0 989.1
2021 Q3 5,400 0 0 0.0
2021 Q2 4,470 3 0 671.1
2021 Q1 3,116 2 1 641.8
2020 Q4 3,158 0 0 0.0
2020 Q3 1,592 1 0 628.1
2020 Q2 2,087 0 0 0.0
2020 Q1 1,745 11 2 6303.7
2019 Q4 1,853 0 0 0.0
2019 Q3 1,038 6 0 5780.3
2019 Q2 2,978 0 0 0.0
2019 Q1 6,315 0 0 0.0
2018 Q4 13,535 9 5 664.9
2018 Q3 14,426 0 0 0.0
2018 Q2 10,013 6 1 599.2
2018 Q1 7,655 8 2 1045.1
2017 Q4 8,474 0 0 0.0
2017 Q3 8,666 0 0 0.0
2017 Q2 7,964 5 1 627.8
2017 Q1 7,410 0 0 0.0
2016 Q4 5,615 10 1 1780.9
2016 Q3 6,602 0 0 0.0
2016 Q2 5,788 23 4 3973.7
2016 Q1 5,686 8 1 1407.0
2015 Q4 7,354 0 0 0.0
2015 Q3 7,672 0 0 0.0
2015 Q2 9,495 8 2 842.5
2015 Q1 9,384 13 3 1385.3
2014 Q4 9,824 0 0 0.0
2014 Q3 8,647 7 1 809.5
2014 Q2 11,510 13 1 1129.5
2014 Q1 10,177 0 0 0.0
2013 Q4 9,348 18 1 1925.5
2013 Q3 5,780 0 0 0.0
2013 Q2 5,846 6 3 1026.3
2013 Q1 3,505 0 0 0.0
2012 Q4 3,330 8 3 2402.4
2012 Q3 4,420 0 0 0.0
2012 Q2 5,700 7 2 1228.1
2012 Q1 4,374 4 1 914.5
2011 Q4 5,610 0 0 0.0
2011 Q3 5,756 9 6 1563.6
2011 Q2 3,655 0 0 0.0
2011 Q1 4,315 4 1 927.0
2010 Q4 6,048 0 0 0.0
2010 Q3 5,843 0 0 0.0
2010 Q2 4,736 3 0 633.4
2010 Q1 5,170 2 0 386.8
2009 Q4 4,262 0 0 0.0
2009 Q3 5,161 0 0 0.0
2009 Q2 3,963 0 0 0.0
2009 Q1 5,679 4 3 704.3
2008 Q4 6,017 1 0 166.2
2008 Q3 7,220 0 0 0.0
2008 Q2 5,845 2 0 342.2
2008 Q1 6,299 1 0 158.8
2007 Q4 5,551 0 0 0.0
2007 Q3 5,729 2 0 349.1
2007 Q2 5,116 0 0 0.0
2007 Q1 4,971 0 0 0.0
2006 Q4 4,647 2 1 430.4
2006 Q3 6,023 0 0 0.0
2006 Q2 2,495 0 0 0.0
2006 Q1 7,566 1 1 132.2
2005 Q4 6,013 0 0 0.0
2005 Q3 4,082 0 0 0.0
2005 Q2 3,935 0 0 0.0
2005 Q1 3,196 0 0 0.0
2004 Q4 3,590 0 0 0.0
2004 Q3 3,592 0 0 0.0
2004 Q2 3,576 0 0 0.0
2004 Q1 3,880 0 0 0.0
2003 Q4 4,384 2 0 456.2
2003 Q3 4,704 0 0 0.0
2003 Q2 4,531 2 1 441.4
2003 Q1 3,702 0 0 0.0
2002 Q4 2,276 2 0 878.7
2002 Q3 0 0 0
2002 Q2 0 4 0
2002 Q1 0 4 0
2001 Q4 0 0 0
2001 Q3 0 5 1
2001 Q2 0 0 0
2000 Q4 0 0 0
2000 Q3 0 0 0
2000 Q2 3,705 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

7 on file

2014 · 1 incident

May 4, 2014 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Mineral Resources LLC · Over-exertion in pulling or pushing objects

At 7:00 AM employee injured his shoulder while turning a valve on the plant clarifier.

2011 · 1 incident

March 18, 2011 CA · Metal/Non-Metal ledgeman/hand, quarry man SLIP OR FALL OF PERSON
Mineral Resources LLC · Fall from machine

Employee was climbing over a conveyor belt and slipped and jumped down aprox 4' to concrete slab, resulting in a fracture to the heel.

2009 · 1 incident

August 23, 2009 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER
Mineral Resources LLC · (Not Elsewhere Classified)

Unknown back strain.

2008 · 1 incident

May 24, 2008 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Mineral Resources LLC · Fall from machine

While working on the screen in the plant, he slipped and landed on his back side.

2003 · 1 incident

August 25, 2003 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Mineral Resources LLC · Over-exertion in lifting objects

WHILE SHOVELING SAND TWISTED TO THE SIDE AND STRAINED BACK (LUMBAR STRAIN)

2002 · 1 incident

2001 · 1 incident

October 16, 2001 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Mineral Resources LLC · Fall onto or against objects

WORKER WAS REMOVING FORMS AND STUMBLED OVER A ROCK. CAUGHT FALL WITH LEFT HAND, SPRAINING WRIST.

For insurers, brokers, and safety consultants

The full compliance file on Morris Ravine Mine

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.

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