N R Hamm Quarry LLC · Fall onto or against objects
Employee was attempting to rotate a conveyor tail pulley with a bar; the bar slipped from pulley causing employee to lunge forward hitting EE's chin on the side of conveyor frame.
Olathe Quarry Metal/Non-Metal
Martin Marietta Materials, Inc.
· Surface
Controlled by
Martin Marietta Materials Inc
Olathe,
Johnson County,
KS
·
Active
MSHA Mine ID: 1401704
Olathe Quarry has $23K in proposed MSHA penalties and $0 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 Olathe Quarry.
- Fatalities
- 0
- Total incidents
- 4
- Years on record
- 2014–2026
- Latest incident
- Feb 2026
Compliance record
MSHA citations since 2009
68
citations
13
significant & substantial
$22,559
proposed penalties
$18,995
paid to date
84% of proposed penalties paid to date, a $3,564 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2009
40
inspections on record
642
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: 642 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Olathe Quarry has $23K in proposed MSHA penalties and $0 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.$23K
proposed penalties
$19K
current assessed
$19K
paid to date
$0
outstanding
65 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2026-01-29.
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 | 7,537 | 0 | 0 | 0.0 |
| 2025 Q3 | 12,517 | 0 | 0 | 0.0 |
| 2025 Q2 | 9,434 | 0 | 0 | 0.0 |
| 2025 Q1 | 7,154 | 0 | 0 | 0.0 |
| 2024 Q4 | 8,785 | 0 | 0 | 0.0 |
| 2024 Q3 | 11,260 | 0 | 0 | 0.0 |
| 2024 Q2 | 11,729 | 0 | 0 | 0.0 |
| 2024 Q1 | 10,971 | 0 | 0 | 0.0 |
Show 59 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 11,931 | 5 | 0 | 419.1 |
| 2023 Q3 | 11,540 | 0 | 0 | 0.0 |
| 2023 Q2 | 9,673 | 10 | 6 | 1033.8 |
| 2023 Q1 | 9,215 | 0 | 0 | 0.0 |
| 2022 Q4 | 8,753 | 2 | 0 | 228.5 |
| 2022 Q3 | 11,308 | 3 | 0 | 265.3 |
| 2022 Q2 | 11,170 | 0 | 0 | 0.0 |
| 2022 Q1 | 7,720 | 0 | 0 | 0.0 |
| 2021 Q4 | 11,390 | 0 | 0 | 0.0 |
| 2021 Q3 | 11,966 | 1 | 0 | 83.6 |
| 2021 Q2 | 11,369 | 0 | 0 | 0.0 |
| 2021 Q1 | 8,141 | 1 | 0 | 122.8 |
| 2020 Q4 | 10,732 | 0 | 0 | 0.0 |
| 2020 Q3 | 11,457 | 0 | 0 | 0.0 |
| 2020 Q2 | 8,656 | 2 | 0 | 231.1 |
| 2020 Q1 | 7,042 | 1 | 1 | 142.0 |
| 2019 Q4 | 8,295 | 4 | 0 | 482.2 |
| 2019 Q3 | 10,394 | 0 | 0 | 0.0 |
| 2019 Q2 | 8,547 | 0 | 0 | 0.0 |
| 2019 Q1 | 6,539 | 4 | 0 | 611.7 |
| 2018 Q4 | 6,150 | 0 | 0 | 0.0 |
| 2018 Q3 | 9,344 | 0 | 0 | 0.0 |
| 2018 Q2 | 2,097 | 2 | 0 | 953.7 |
| 2018 Q1 | 1,926 | 1 | 0 | 519.2 |
| 2017 Q4 | 5,683 | 0 | 0 | 0.0 |
| 2017 Q3 | 7,685 | 0 | 0 | 0.0 |
| 2017 Q2 | 7,587 | 7 | 2 | 922.6 |
| 2017 Q1 | 6,807 | 0 | 0 | 0.0 |
| 2016 Q4 | 7,057 | 0 | 0 | 0.0 |
| 2016 Q3 | 7,108 | 1 | 0 | 140.7 |
| 2016 Q2 | 7,595 | 0 | 0 | 0.0 |
| 2016 Q1 | 8,344 | 0 | 0 | 0.0 |
| 2015 Q4 | 7,045 | 2 | 0 | 283.9 |
| 2015 Q3 | 7,650 | 0 | 0 | 0.0 |
| 2015 Q2 | 7,166 | 3 | 0 | 418.6 |
| 2015 Q1 | 7,986 | 0 | 0 | 0.0 |
| 2014 Q4 | 6,979 | 1 | 0 | 143.3 |
| 2014 Q3 | 8,945 | 2 | 1 | 223.6 |
| 2014 Q2 | 7,130 | 0 | 0 | 0.0 |
| 2014 Q1 | 7,113 | 2 | 1 | 281.2 |
| 2013 Q4 | 7,399 | 0 | 0 | 0.0 |
| 2013 Q3 | 9,328 | 0 | 0 | 0.0 |
| 2013 Q2 | 9,284 | 0 | 0 | 0.0 |
| 2013 Q1 | 5,007 | 0 | 0 | 0.0 |
| 2012 Q4 | 7,556 | 0 | 0 | 0.0 |
| 2012 Q3 | 7,538 | 0 | 0 | 0.0 |
| 2012 Q2 | 4,901 | 1 | 0 | 204.0 |
| 2012 Q1 | 1,883 | 0 | 0 | 0.0 |
| 2011 Q4 | 5,092 | 1 | 0 | 196.4 |
| 2011 Q3 | 5,341 | 0 | 0 | 0.0 |
| 2011 Q2 | 7,387 | 0 | 0 | 0.0 |
| 2011 Q1 | 12,213 | 0 | 0 | 0.0 |
| 2010 Q4 | 6,568 | 1 | 1 | 152.3 |
| 2010 Q3 | 3,092 | 0 | 0 | 0.0 |
| 2010 Q2 | 1,143 | 1 | 0 | 874.9 |
| 2010 Q1 | 4,167 | 0 | 0 | 0.0 |
| 2009 Q4 | 3,724 | 4 | 1 | 1074.1 |
| 2009 Q3 | 5,493 | 0 | 0 | 0.0 |
| 2009 Q2 | 3,281 | 2 | 0 | 609.6 |
No fatalities recorded at this mine.
Reportable incidents
4 on file2026 · 1 incident
2021 · 1 incident
October 7, 2021
KS · Metal/Non-Metal
blaster, shooter, shotfirer, explosive worker, powder gang/monkey
HANDLING OF MATERIALS
N R Hamm Quarry LLC · Over-exertion in lifting objects
We had two shots today. Halfway through the 2nd shot, I was moving the hose over some drill cutting piles and I felt pain in my scrotum. I went to the ER to be examined by a Dr. After receiving an ultrasound and CT scan, I was told I have 2 Inguinal Hernias that will require surgery to fix.
2019 · 1 incident
January 8, 2019
KS · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
SLIP OR FALL OF PERSON
N R Hamm Quarry LLC · Over-exertion (Not Elsewhere Classified)
Slipped and lost balance causing employee to stumble backwards and twist ankle.
2014 · 1 incident
August 2, 2014
KS · Metal/Non-Metal
utility man, shift tech, service/dump truck operator
SLIP OR FALL OF PERSON
APAC-Kansas, Inc. · Fall to the walkway or working surface
Employee was using a pry bar on a lodged rock in a pulley when it come loose. The employee fell back on his left leg causing injury to the ankle.
For insurers, brokers, and safety consultants
The full compliance file on Olathe Quarry
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.