Mining Incidents

Pacific Heights Pit Metal/Non-Metal

Weimer and Sons · Surface
Controlled by John A Weimer
Oroville, Butte County, CA  ·  Active
MSHA Mine ID: 0401929

Pacific Heights Pit has $22K in proposed MSHA penalties and $4K outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
18
Years on record
1983–2016
Latest incident
Jun 2016
Compliance record
MSHA citations since 2000
133
citations
16
significant & substantial
$22,319
proposed penalties
$18,728
paid to date
84% of proposed penalties paid to date, a $3,591 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
51
inspections on record
707
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: 707 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Pacific Heights Pit has $22K in proposed MSHA penalties and $4K 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.
$22K
proposed penalties
$22K
current assessed
$19K
paid to date
$4K
outstanding
129 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-15.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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 4,240 9 0 2122.6
2025 Q3 5,111 0 0 0.0
2025 Q2 4,231 1 0 236.4
2025 Q1 2,489 0 0 0.0
2024 Q4 3,279 1 0 305.0
2024 Q3 4,299 0 0 0.0
2024 Q2 6,282 8 0 1273.5
2024 Q1 1,966 0 0 0.0
Show 87 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 3,799 3 0 789.7
2023 Q3 5,701 5 1 877.0
2023 Q2 4,177 0 0 0.0
2023 Q1 1,536 0 0 0.0
2022 Q4 2,128 0 0 0.0
2022 Q3 6,232 8 0 1283.7
2022 Q2 4,460 0 0 0.0
2022 Q1 1,821 0 0 0.0
2021 Q4 1,993 0 0 0.0
2021 Q3 4,027 0 0 0.0
2021 Q2 1,400 0 0 0.0
2021 Q1 640 4 0 6250.0
2020 Q4 2,779 0 0 0.0
2020 Q3 3,468 0 0 0.0
2020 Q2 2,064 4 0 1938.0
2020 Q1 1,036 0 0 0.0
2019 Q4 639 0 0 0.0
2019 Q3 1,096 0 0 0.0
2019 Q2 1,063 0 0 0.0
2018 Q3 1,319 0 0 0.0
2018 Q2 2,965 0 0 0.0
2018 Q1 2,167 2 0 922.9
2017 Q4 3,349 0 0 0.0
2017 Q3 3,909 0 0 0.0
2017 Q2 3,318 0 0 0.0
2017 Q1 1,649 1 0 606.4
2016 Q4 3,501 1 0 285.6
2016 Q3 4,229 0 0 0.0
2016 Q2 4,300 5 1 1162.8
2016 Q1 1,854 0 0 0.0
2015 Q4 2,724 0 0 0.0
2015 Q3 2,419 0 0 0.0
2015 Q2 2,352 0 0 0.0
2015 Q1 2,044 0 0 0.0
2014 Q4 1,633 0 0 0.0
2014 Q3 1,690 0 0 0.0
2014 Q2 1,948 0 0 0.0
2012 Q2 0 0 0
2012 Q1 0 0 0
2011 Q4 1,078 1 0 927.6
2011 Q3 1,850 0 0 0.0
2011 Q2 0 0 0
2011 Q1 0 0 0
2010 Q4 2,398 0 0 0.0
2010 Q3 5,533 0 0 0.0
2010 Q2 5,362 6 2 1119.0
2010 Q1 2,718 3 0 1103.8
2009 Q4 2,583 0 0 0.0
2009 Q3 5,048 0 0 0.0
2009 Q2 3,945 0 0 0.0
2009 Q1 0 0 0
2008 Q4 5,330 0 0 0.0
2008 Q3 8,796 0 0 0.0
2008 Q2 7,605 0 0 0.0
2008 Q1 8,748 4 0 457.2
2007 Q4 12,666 0 0 0.0
2007 Q3 20,952 0 0 0.0
2007 Q2 17,164 2 0 116.5
2007 Q1 11,927 0 0 0.0
2006 Q4 13,877 3 0 216.2
2006 Q3 18,269 0 0 0.0
2006 Q2 12,834 3 0 233.8
2006 Q1 7,371 2 0 271.3
2005 Q4 11,471 0 0 0.0
2005 Q3 15,085 0 0 0.0
2005 Q2 13,210 0 0 0.0
2005 Q1 8,467 0 0 0.0
2004 Q4 8,449 1 0 118.4
2004 Q3 21,475 0 0 0.0
2004 Q2 11,311 3 0 265.2
2004 Q1 6,622 0 0 0.0
2003 Q4 8,202 3 0 365.8
2003 Q3 15,185 0 0 0.0
2003 Q2 13,884 0 0 0.0
2003 Q1 9,880 0 0 0.0
2002 Q4 13,001 2 0 153.8
2002 Q3 17,376 0 0 0.0
2002 Q2 17,500 0 0 0.0
2002 Q1 11,196 1 0 89.3
2001 Q4 16,508 4 0 242.3
2001 Q3 20,565 5 3 243.1
2001 Q2 19,041 0 0 0.0
2001 Q1 16,282 4 0 245.7
2000 Q4 16,664 0 0 0.0
2000 Q3 18,698 0 0 0.0
2000 Q2 18,158 22 5 1211.6
2000 Q1 10,752 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

18 on file

2016 · 1 incident

June 17, 2016 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer FALLING/SLIDING/ROLLING MATERIALS
Franklin Construction, Inc. · Struck by falling object

EE was inspecting the portable crushing/screen. EE's hand was resting on the I-Beam when a rock struck EE's finger tip resulting in a laceration. The rock fell from the screen above approximately three feet striking EE's finger tip.

2006 · 1 incident

March 13, 2006 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Granite Construction Company · Caught in, under or between (Not Elsewhere Classified)

EE pulled on v-belt and caught his right hand finger in pulley. Equipment was locked/tagged out.

2001 · 1 incident

June 5, 2001 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
Robinson Construction Company Inc · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE WAS HELPING TO CLEAR THE COBBLE BELT AT THE SCREEN PLANT. HE WAS COMING BACK DOWN THE SIDE OF THE BELT. HE RUBBED HIS HAND OVER A WASP NEST THAT WAS UNDER THE BELT. THIS CAUSED WASPS TO STING HIM SEVEN TIMES BEFORE HE COULD GET AWAY FROM THEM. NO ACTION WAS TAKEN OTHER THAN TO WARN EMPLOYEES TO BE AWARE OF THE NESTS AND TO SPRAY THEM FOR ERADICATION OF WASPS.

2000 · 3 incidents

March 13, 2000 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (REPEATED TRAUMA)
Robinson Construction Company Inc · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS A DRIVER ON A HEAVY HAUL TRUCK (EUCLID B70. IN MAY 1999 EMPLOYEE COMPLAINED OF BACK PAIN DUE TO THE TRUCK. WE TRANSFERRED EMPLOYEE TO THE SHOP AS A MECHANIC.

January 25, 2000 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Robinson Construction Company Inc · Over-exertion in lifting objects

EMPLOYEE WAS LIFTING AT THE SCREEN PLANT WHILE REPAIRING AND PULLED A MUSCLE IN STOMACH.

1996 · 1 incident

February 6, 1996 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Robinson Construction Company Inc · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS CLEANING AN ASPHALT SHUTE AT THE HOT PLANT. METAL SCRAPING BAR GOT CAUGHT ON A SLATCAUSING IT TO SLAP EMP UP BESIDE THE HEAD BREAKING RT JAW BONE. A GUARD HAD BEEN REMOVED TO PERF ORM THIS JOB. IT HAS BEEN REPLACED.

1995 · 2 incidents

June 29, 1995 CA · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
Robinson Construction Company Inc · Struck against stationary object

A WASP LANDED IN THE EMPLOYEE'S HAIR, CAUSING HIM TO SWING AT THE WASP.WHILE HIS ARM WAS STILL SWINGING IT CAME INTO CONTACT WITH THE SHARP BOTTOM EDGE OF THE TESTING SCREENS, CAUSING THE INJU RY THAT REQUIRED THREE STITCHES.

April 27, 1995 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Robinson Construction Company Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS HELPING TO REPAIR A CRUSHER AT THE CRUSHING PLANT. A BRASS BUSHING SLIPPED AND CAUGHT HIS RIGHT INDEX FINGER. EMPLOYEE REQUIRED APPROX. 8 STITCHES ON HIS FINGER.

1994 · 1 incident

March 24, 1994 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Robinson Construction Company Inc · Struck by... (Not Elsewhere Classified)

TIGHTENING A PLUG WITH PIPE WRENCH, WRENCH SLIPPED AND CUT KNUCKLE ON RIGHT INDEX FINGER.

1993 · 2 incidents

1992 · 2 incidents

July 9, 1992 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Robinson Construction Company Inc · Struck against stationary object

EMPLOYEE WAS WORKING ON A PIECE OF EQUIPMENT WHEN HIS WRENCH SLIPPED, CAUSING HIS CHIN TO HIT A PIPE. EMPLOYEE CUT INSIDE OF LOWER LIP.

March 26, 1992 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Robinson Construction Company Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS DOING REPAIR WORK AT THE CRUSHER. HE HIT HIS HAND WITH A SLAG HAMMER.

1991 · 2 incidents

April 19, 1991 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Robinson Construction Company Inc · Over-exertion (Not Elsewhere Classified)

EMPL WAS OPERATING CAT DOZER HE STATED THAT SHIFTING GEARS HAD CAUSED LEFT ARM & SHOULDER TO HURT. EMPL STATES HE DID THIS ON OR ABOUT 4/19/91 HOWEVER HE CONTINUED TO WORK. HE WENT TO DR ON SU NDAY 4/21/91. HE AGAIN RETURNED TO WORK WITHOUT INFORMING US. HIS LAST DAY WORKED WAS 5/2/91. RETURNED TO WORK ON 7/1/91 OFF AGAIN ON 7/15/91 BECAUSE EVEN AT MODIFIED WORK HE CONTINUED TO HAV

January 23, 1991 CA · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor OTHER
Robinson Construction Company Inc · (Not Elsewhere Classified)

EMPL WAS WORKING IN SHOP REPAIRING & SUPERVISING REPAIRING WHEN HE BECAME DIZZY & PASSED OUT FOR FEW SECONDS. RUSHED HIM BY AMBULANCE TO EMERGENCY WHERE POSSIBLE HEART ATTACK WAS CONFIRMED. AF TER COMPLETE DIANOSIS WAS FINALIZED DEFINITE HEART ATTACK WAS RULED CAUSE & EMPL HAD OPEN HEART SURGERY PERFORMED.

1984 · 1 incident

April 2, 1984 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Robinson Construction Company Inc · Struck by... (Not Elsewhere Classified)

THERE WERE NO UNSAFE CONDITIONS THAT CONTRIBUTED TO THIS ACCIDENT. ACCIDENT CAUSED BY EMPLOYEES NOT PERFORMING LOCK OUT SAFETY ROCEDURES ON CONVEYORS. ONLY ONE EMPLOYEE INJURED.

1983 · 1 incident

October 17, 1983 CA · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler MACHINERY
Robinson Construction Company Inc · Struck by... (Not Elsewhere Classified)

HAND GRINDER SLIPPED OUT OF EMPLOYEES HAND AND CUT ARM THERE WERE NO UNSAFE CONDITIONS THAT CAUSED THE ACCIDNET

For insurers, brokers, and safety consultants

The full compliance file on Pacific Heights Pit

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.