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OSBORN WASH: 183 MSHA citations Metal/Non-Metal

Parker, La Paz County, AZ  ·  Active
MSHA Mine ID: 0201315

OSBORN WASH has $53K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
3
Years on record
2006–2010
Latest incident
Sep 2010
Compliance record
MSHA citations since 2000
183
citations
62
significant & substantial
$52,753
proposed penalties
$52,753
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Colorado River Sand and Rock's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
62
inspections on record
675
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: 675 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

OSBORN WASH has $53K 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.
$53K
proposed penalties
$53K
current assessed
$53K
paid to date
$0
outstanding
183 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.
33.9%
significant & substantial
9.3%
high negligence or reckless
33.9%
reasonably likely or greater
54.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 4.9% low, 85.8% moderate, 9.3% high, 0.0% reckless.
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
10
samples
3
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
  • Quartz, respirable, >1% Qtz3
  • Nuisance dust, respirable, <1% Qtz2
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (10)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-06-03 Quartz, respirable, >1% Qtz 0.13 Front-end Loader Operator
2022-07-07 Quartz, respirable, >1% Qtz 0.34 Crusher Oper/Worker
2022-07-07 Unlisted Particulate, respirable, <1% Qtz 0.19 Front-end Loader Operator
2022-07-07 Respirable dust, <.1mg 0 Utility Man
2019-04-02 Nuisance dust, respirable, <1% Qtz 1.42 10 0.14 Mechanic
2019-04-02 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-02-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-02-07 Nuisance dust, respirable, <1% Qtz 0.13 10 0.01 Front-end Loader Operator
2014-10-22 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-03-31 Quartz, respirable, >1% Qtz 0.12 1.48 0.08 Front-end Loader Operator
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.
Ownership history
  1. Tanner Companies 1978 to 1987
  2. Tanner Companies 1987 to 1994
  3. Tanner Companies 1994 to 1998
  4. Colorado River Sand and Rock 1998 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 5
2023 5
2022 5
2021 6
2020 7
2019 7
2018 6
2017 5
2016 7
2015 7
2014 7
2013 7
2012 7
2011 8
2010 7
2009 7
2008 7
2007 6
2006 6
2005 5
2004 4
2003 6
2002 7
2001 7
2000 7
Source: MSHA quarterly employment and production, updated weekly.

OSBORN WASH sits in La Paz County, Arizona, where the Census mining category is 0.3% 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.
La Paz County, Arizona · Population 16,605
0.3%
Mining share of county employment
$49,506
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 1,682 1 0 594.5
2026 Q1 1,758 0 0 0.0
2025 Q4 1,692 1 0 591.0
2025 Q3 1,761 0 0 0.0
2025 Q2 2,403 1 0 416.1
2025 Q1 2,132 0 0 0.0
2024 Q4 2,087 2 2 958.3
2024 Q3 2,689 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,733 3 0 1097.7
2024 Q1 2,217 5 1 2255.3
2023 Q4 2,706 0 0 0.0
2023 Q3 2,493 6 1 2406.7
2023 Q2 2,298 0 0 0.0
2023 Q1 1,556 11 0 7069.4
2022 Q4 1,675 0 0 0.0
2022 Q3 2,204 4 0 1814.9
2022 Q2 2,231 0 0 0.0
2022 Q1 2,677 0 0 0.0
2021 Q4 3,137 0 0 0.0
2021 Q3 2,274 0 0 0.0
2021 Q2 1,493 7 2 4688.5
2021 Q1 1,707 0 0 0.0
2020 Q4 2,195 1 0 455.6
2020 Q3 2,506 0 0 0.0
2020 Q2 2,227 1 0 449.0
2020 Q1 3,318 0 0 0.0
2019 Q4 2,668 5 1 1874.1
2019 Q3 3,600 0 0 0.0
2019 Q2 3,581 0 0 0.0
2019 Q1 2,875 0 0 0.0
2018 Q4 3,004 13 5 4327.6
2018 Q3 1,462 0 0 0.0
2018 Q2 1,130 29 18 25663.7
2018 Q1 2,826 1 0 353.9
2017 Q4 1,625 0 0 0.0
2017 Q3 2,246 0 0 0.0
2017 Q2 2,360 0 0 0.0
2017 Q1 2,060 0 0 0.0
2016 Q4 2,657 2 1 752.7
2016 Q3 3,360 0 0 0.0
2016 Q2 3,275 4 2 1221.4
2016 Q1 3,160 0 0 0.0
2015 Q4 2,763 3 1 1085.8
2015 Q3 2,157 0 0 0.0
2015 Q2 3,571 3 0 840.1
2015 Q1 2,954 0 0 0.0
2014 Q4 2,073 2 0 964.8
2014 Q3 4,100 0 0 0.0
2014 Q2 3,854 0 0 0.0
2014 Q1 3,218 4 1 1243.0
2013 Q4 2,894 0 0 0.0
2013 Q3 2,833 0 0 0.0
2013 Q2 1,997 0 0 0.0
2013 Q1 2,476 11 8 4442.6
2012 Q4 607 0 0 0.0
2012 Q3 915 0 0 0.0
2012 Q2 1,381 0 0 0.0
2012 Q1 832 8 5 9615.4
2011 Q4 466 0 0 0.0
2011 Q3 2,847 1 0 351.2
2011 Q2 1,399 0 0 0.0
2011 Q1 1,065 12 5 11267.6
2010 Q4 659 0 0 0.0
2010 Q3 1,266 0 0 0.0
2010 Q2 1,294 0 0 0.0
2010 Q1 585 1 0 1709.4
2009 Q4 461 0 0 0.0
2009 Q3 692 0 0 0.0
2009 Q2 1,284 0 0 0.0
2009 Q1 1,163 1 0 859.8
2008 Q4 563 0 0 0.0
2008 Q3 1,011 0 0 0.0
2008 Q2 646 0 0 0.0
2008 Q1 1,054 16 3 15180.3
2007 Q4 596 0 0 0.0
2007 Q3 1,590 0 0 0.0
2007 Q2 3,168 2 0 631.3
2007 Q1 2,443 0 0 0.0
2006 Q4 2,329 0 0 0.0
2006 Q3 2,673 0 0 0.0
2006 Q2 2,660 0 0 0.0
2006 Q1 2,784 2 0 718.4
2005 Q4 2,419 0 0 0.0
2005 Q3 830 0 0 0.0
2005 Q2 2,630 7 4 2661.6
2005 Q1 880 0 0 0.0
2004 Q4 1,885 0 0 0.0
2004 Q3 640 0 0 0.0
2004 Q2 745 2 1 2684.6
2004 Q1 2,160 0 0 0.0
2003 Q4 2,160 0 0 0.0
2003 Q3 2,160 0 0 0.0
2003 Q2 3,160 0 0 0.0
2003 Q1 3,230 4 0 1238.4
2002 Q4 3,540 0 0 0.0
2002 Q3 2,940 0 0 0.0
2002 Q2 3,070 1 0 325.7
2002 Q1 3,200 0 0 0.0
2001 Q4 3,480 0 0 0.0
2001 Q3 3,240 0 0 0.0
2001 Q2 3,280 4 0 1219.5
2001 Q1 3,280 0 0 0.0
2000 Q4 3,258 0 0 0.0
2000 Q3 3,230 0 0 0.0
2000 Q2 3,180 2 1 628.9
2000 Q1 2,880 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2010 · 1 incident

September 23, 2010 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Colorado River Sand and Rock · Fall onto or against objects

EE SAID HE SLIPPED OFF THE LOADER WHILE FUELING HE MISJUDGED HIS FOOTING ,FELL HITTING HIS HEAD ON THE MACHINE

2009 · 1 incident

September 29, 2009 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Colorado River Sand and Rock · Struck against a moving object

EMPLOYEE SAID THE SEAT IN THE 980 LOADER WAS MAKING HIS BACK SORE AND THAT IT WAS BROKEN. NOT SURE WHEN ACCIDENT OCCURRED. SEAT WAS REPLACED. EMPLOYEE IS CURRENTLY OFF WORK AND RECEIVING PHYSICAL THERAPY.

2006 · 1 incident

August 25, 2006 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Colorado River Sand and Rock · Struck against stationary object

While assisting in the repairs of a 30" feed belt, ee cut the knuckle of his left index finger after coming into contact with a sharp v-belt pulley. He at first refused medical treatment, but was later convinced he should go. He received 4 stitches.