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Treasure Canyon Quarry #2: 73 MSHA citations Metal/Non-Metal

Controlled by Brenda Moosman
Preston, Franklin County, ID  ·  Intermittent
MSHA Mine ID: 1001358

Treasure Canyon Quarry #2 has $11K in proposed MSHA penalties and $151 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
8
Years on record
2000–2023
Latest incident
Jun 2023
Compliance record
MSHA citations since 2001
73
citations
18
significant & substantial
$10,863
proposed penalties
$10,712
paid to date
99% of proposed penalties paid to date, a $151 gap.
Source: MSHA violations data, updated weekly.
See Treasure Canyon Calcium Co's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
46
inspections on record
662
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: 662 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Treasure Canyon Quarry #2 has $11K in proposed MSHA penalties and $151 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.
$11K
proposed penalties
$11K
current assessed
$11K
paid to date
$151
outstanding
70 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-07-15.
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.
25.4%
significant & substantial
1.4%
high negligence or reckless
25.4%
reasonably likely or greater
71.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 5.6% low, 93.0% moderate, 1.4% 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: 2024-08-07
5%
of limit-tested samples over the exposure limit
28
samples
21
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz91 over
  • Respirable dust, <.1mg7
  • Nuisance dust, respirable, <1% Qtz6
  • Nuisance dust, total, <1% Qtz6
Show the individual readings (28)
Date Contaminant Concentration Limit Conc / limit Occupation
2005-07-20 Quartz, respirable, >1% Qtz 2.31 0.96 2.41 Front-end Loader Operator
2024-08-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-08-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-08-07 Respirable dust, <.1mg 0 Truck Driver
2023-09-13 Nuisance dust, respirable, <1% Qtz 0.27 10 0.03 Jackhammer Operator
2023-09-13 Nuisance dust, total, <1% Qtz 0.2 10 0.02 Crusher Oper/Worker
2023-09-13 Nuisance dust, respirable, <1% Qtz 0.16 10 0.02 Drill Operator, Rotary
2023-09-13 Nuisance dust, respirable, <1% Qtz 0.14 10 0.01 Front-end Loader Operator
2019-07-31 Nuisance dust, total, <1% Qtz 1.65 10 0.17 Truck Driver
2019-07-31 Nuisance dust, total, <1% Qtz 1.63 10 0.16 Bulldozer Operator
2019-07-31 Nuisance dust, total, <1% Qtz 3.81 10 0.38 Crusher Oper/Worker
2019-07-31 Nuisance dust, total, <1% Qtz 0.69 10 0.07 Front-end Loader Operator
2019-07-31 Nuisance dust, total, <1% Qtz 4.59 10 0.46 Drill Operator, Rotary Air
2014-05-21 Nuisance dust, respirable, <1% Qtz 0.32 10 0.03 Front-end Loader Operator
2014-05-21 Quartz, respirable, >1% Qtz 0.59 2.05 0.29 Crusher Oper/Worker
2014-05-21 Respirable dust, <.1mg 0 Drill Operator, Rotary
2014-05-21 Respirable dust, <.1mg 0 Backhoe Operator
2011-09-08 Respirable dust, <.1mg 0 Bulldozer Operator
2011-09-08 Nuisance dust, respirable, <1% Qtz 0.18 10 0.02 Front-end Loader Operator
2011-09-08 Respirable dust, <.1mg 0 Truck Driver
2011-09-08 Quartz, respirable, >1% Qtz 0.19 0.49 0.39 Backhoe Operator
2011-09-08 Quartz, respirable, >1% Qtz 0.66 2.18 0.30 Crusher Oper/Worker
2006-06-20 Quartz, respirable, >1% Qtz 0.69 2.24 0.31 Crusher Oper/Worker
2006-06-20 Nuisance dust, respirable, <1% Qtz 0.16 10 0.02 Front-end Loader Operator
2005-07-20 Quartz, respirable, >1% Qtz 0.4 0.91 0.44 Jackhammer Operator
2005-07-20 Quartz, respirable, >1% Qtz 0.58 1.02 0.57 Truck Driver
2005-07-20 Quartz, respirable, >1% Qtz 0.46 1.05 0.44 Crusher Oper/Worker
2005-07-20 Quartz, respirable, >1% Qtz 0.5 2.88 0.17 Drill Operator, Rotary Air
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. Treasure Canyon Calcium Co 1978 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 4
2023 4
2022 4
2021 4
2020 4
2019 4
2018 4
2017 4
2016 4
2015 4
2014 5
2013 4
2012 5
2011 3
2010 5
2009 4
2008 7
2007 6
2006 7
2005 7
2004 5
2003 8
2002 7
2001 5
2000 5
Source: MSHA quarterly employment and production, updated weekly.

Treasure Canyon Quarry #2 sits in Franklin County, Idaho, where the Census mining category is 0.7% 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.
Franklin County, Idaho · Population 14,715
0.7%
Mining share of county employment
$65,991
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 1,689 0 0 0.0
2026 Q1 0 0 0
2025 Q4 1,809 0 0 0.0
2025 Q3 3,991 0 0 0.0
2025 Q2 2,031 0 0 0.0
2025 Q1 0 0 0
2024 Q4 1,614 3 0 1858.7
2024 Q3 3,775 3 0 794.7
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,254 0 0 0.0
2024 Q1 0 0 0
2023 Q4 3,122 0 0 0.0
2023 Q3 4,517 4 0 885.5
2023 Q2 1,561 0 0 0.0
2023 Q1 0 0 0
2022 Q4 1,939 0 0 0.0
2022 Q3 4,099 1 0 244.0
2022 Q2 1,664 0 0 0.0
2022 Q1 0 0 0
2021 Q4 2,151 0 0 0.0
2021 Q3 3,975 0 0 0.0
2021 Q2 1,497 0 0 0.0
2021 Q1 0 0 0
2020 Q4 2,013 0 0 0.0
2020 Q3 4,884 0 0 0.0
2020 Q2 2,361 1 1 423.5
2020 Q1 0 0 0
2019 Q4 1,845 0 0 0.0
2019 Q3 3,884 1 0 257.5
2019 Q2 2,050 0 0 0.0
2019 Q1 0 0 0
2018 Q4 1,776 0 0 0.0
2018 Q3 3,905 0 0 0.0
2018 Q2 2,332 1 0 428.8
2018 Q1 0 0 0
2017 Q4 1,738 0 0 0.0
2017 Q3 4,495 0 0 0.0
2017 Q2 2,343 0 0 0.0
2017 Q1 0 0 0
2016 Q4 2,468 0 0 0.0
2016 Q3 3,879 1 0 257.8
2016 Q2 2,418 0 0 0.0
2016 Q1 0 0 0
2015 Q4 1,850 0 0 0.0
2015 Q3 4,144 0 0 0.0
2015 Q2 1,822 2 0 1097.7
2015 Q1 0 0 0
2014 Q4 2,258 0 0 0.0
2014 Q3 4,126 0 0 0.0
2014 Q2 2,298 6 1 2611.0
2014 Q1 0 0 0
2013 Q4 1,447 0 0 0.0
2013 Q3 3,661 0 0 0.0
2013 Q2 2,237 0 0 0.0
2013 Q1 0 0 0
2012 Q4 1,419 0 0 0.0
2012 Q3 3,828 0 0 0.0
2012 Q2 2,781 0 0 0.0
2012 Q1 0 0 0
2011 Q4 1,752 0 0 0.0
2011 Q3 3,280 2 1 609.8
2011 Q2 24 0 0 0.0
2011 Q1 0 0 0
2010 Q4 978 0 0 0.0
2010 Q3 3,736 0 0 0.0
2010 Q2 721 2 0 2773.9
2010 Q1 0 0 0
2009 Q4 620 0 0 0.0
2009 Q3 4,897 6 5 1225.2
2009 Q2 607 0 0 0.0
2009 Q1 0 0 0
2008 Q4 2,562 0 0 0.0
2008 Q3 5,338 0 0 0.0
2008 Q2 1,162 0 0 0.0
2008 Q1 0 0 0
2007 Q4 2,650 3 0 1132.1
2007 Q3 5,422 0 0 0.0
2007 Q2 3,091 6 0 1941.1
2007 Q1 0 0 0
2006 Q4 1,882 0 0 0.0
2006 Q3 5,783 0 0 0.0
2006 Q2 2,380 7 0 2941.2
2006 Q1 0 0 0
2005 Q4 3,449 0 0 0.0
2005 Q3 5,145 9 2 1749.3
2005 Q2 641 0 0 0.0
2005 Q1 0 0 0
2004 Q4 931 0 0 0.0
2004 Q3 5,154 0 0 0.0
2004 Q2 2,624 0 0 0.0
2004 Q1 0 0 0
2003 Q4 3,667 0 0 0.0
2003 Q3 4,514 0 0 0.0
2003 Q2 2,517 6 4 2383.8
2003 Q1 0 0 0
2002 Q4 3,388 0 0 0.0
2002 Q3 4,637 6 3 1293.9
2002 Q2 1,887 0 0 0.0
2002 Q1 0 0 0
2001 Q4 1,202 0 0 0.0
2001 Q3 5,389 0 0 0.0
2001 Q2 2,180 2 1 917.4
2001 Q1 0 0 0
2000 Q4 1,543 0 0 0.0
2000 Q3 3,390 0 0 0.0
2000 Q2 213 0 0 0.0
2000 Q1 0 0 0
No fatalities recorded at this mine.

Reportable incidents

8 on file

2023 · 1 incident

June 12, 2023 ID · Metal/Non-Metal miner, prospector, nec SLIP OR FALL OF PERSON
Treasure Canyon Calcium Co · Fall onto or against objects

Miner was walking down a slop with loose rocks slipped and fell cutting right forearm on a rock. EE received 9 stitches on the forearm and came back to work with no work restrictions.

2017 · 1 incident

September 11, 2017 ID · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker HANDTOOLS (NONPOWERED)
Treasure Canyon Calcium Co · Struck against stationary object

While pushing crushed rock with a bar in a plugged chute the victim struck right hand against a metal brace causing it to bruise. The victim thought the hand was broken so was transported to a nearby doctor for examination. The doctor had an x-ray done. After examining the x-ray the doctor determined that the injury was not a broken bone but just a bruise.

2014 · 2 incidents

November 11, 2014 ID · Metal/Non-Metal assayer, geologist, metallurgist, engineer, engineer management OTHER
Treasure Canyon Calcium Co · Struck by flying object

While collecting drill cuttings from an exploratory drill hole a gust of wind blew dust from the drill' s dust collector discharge into the eye of the miner. The dust scratched his right eye. The next day his spouse asked him why his eye was red. A doctor prescribed topical antibiotics and steroids to treat the eye. He did not experience any loss of vision.

May 19, 2014 ID · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
Treasure Canyon Calcium Co · Caught in, under or between a moving and a stationary object

Miner was replacing v-belts on jaw crusher drive. While rolling the new v-belts into place, sheave turned and pinched miner's finger between v-belt and sheave. Miner received 6 stitches to tip of ring finger on his right hand.

2008 · 1 incident

October 16, 2008 ID · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
Treasure Canyon Calcium Co · Struck by falling object

While clearing trees and brush the miner was struck by a falling tree in his back which resulted in a broken rib.

2005 · 1 incident

August 22, 2005 ID · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Treasure Canyon Calcium Co · Over-exertion (Not Elsewhere Classified)

WHILE TRYING TO ENTER A LARGE PIECE OF MOBILE EQUIPMENT, THE VICTIM STEPPED UP ONTO A SURFACE AND HEARD A LOAD "POP". WHEN HE TRIED TO PUT WEIGHT ON HIS RIGHT FOOT IT WOULD NOT SUPPORT HIM.

2003 · 1 incident

June 17, 2003 ID · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Treasure Canyon Calcium Co · Caught in, under or between (Not Elsewhere Classified)

WHILE REPLACING V-BELT ON A DRIVE PULLEY, THE FINGER WAS PINCHED BETWEEN THE V-BELT AND THE PULLEY. THE LEFT HAND RING FINGER WAS BROKEN AND THE FINGER NAIL WAS DISPLACED AND THE SKIN WAS CUT.

2000 · 1 incident

July 5, 2000 ID · Metal/Non-Metal miner, nec HANDTOOLS (NONPOWERED)
Treasure Canyon Calcium Co · Over-exertion in pulling or pushing objects

THE EMPLOYEE STRAINED HIS ELBOW PULLING ON A WRENCH WHILE PERFORMING MAINTENANCE WORK ON A PIECE OF MACHINERY. THE DOCTOR DESCRIBE THE CONDITION AS "TENNIS ELBOW." THE DOCTOR PRESCRIBED AND AN TI-INFLAMMATORY AND PAINKILLER.