Key Takeaway

IROCK Portable #1 is a active surface mine producing Stone, located in Milan, Shelby County, MO. It has 32 violations on record (7 S&S) and $7K in proposed penalties. Operated by Magruder Limestone Co.

IROCK Portable #1

Active Surface Stone

Operator: Magruder Limestone Co

Controller: Mark Magruder

Location: Milan, Shelby County, MO

Employees: 4

32
Violations
7
S&S Violations
3
Accidents
$7K
Penalties

Recent Violations

View all 32 →
Date Section S&S Negligence Penalty
09/17/2025 56.9300(a) Non-S&S ModNegligence $151
03/06/2025 56.14100(b) Non-S&S ModNegligence $151
01/08/2024 56.11003 Non-S&S ModNegligence $147
07/26/2023 56.14207 Non-S&S ModNegligence $143
07/26/2023 41.12 Non-S&S HighNegligence $143
10/05/2021 56.14207 Non-S&S ModNegligence $125
12/02/2020 56.4130(b) Non-S&S ModNegligence $123
02/03/2020 56.14107(a) Non-S&S ModNegligence $123
06/04/2019 56.12034 Non-S&S HighNegligence $121
06/03/2019 56.14112(b) Non-S&S LowNegligence $121
03/07/2019 56.14107(a) Non-S&S LowNegligence $121
03/07/2019 56.11012 Non-S&S LowNegligence $121
06/20/2018 56.11001 Non-S&S ModNegligence $118
06/20/2018 56.4102 Non-S&S ModNegligence $118
06/20/2018 56.12028 Non-S&S ModNegligence $336
06/20/2018 56.4101 Non-S&S ModNegligence $118
10/10/2017 56.9300(a) S&S ModNegligence $116
10/10/2017 56.14101(a)(2) S&S ModNegligence $356
10/10/2017 56.14101(a)(2) S&S ModNegligence $356
05/25/2017 56.12004 Non-S&S ModNegligence $116

Accidents & Injuries

View all 3 →
Date Classification Injury Days Lost
12/05/2024 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 138d lost
03/13/2023 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None
10/06/2017 POWERED HAULAGE DYS AWY FRM WRK & RESTRCTD ACT 14d lost, 54d restricted

Inspections

View all 29 →
Begin End Hours Inspectors
09/17/2025 09/17/2025 10.50 1
03/10/2025 03/10/2025 6.00 1
03/05/2025 03/06/2025 12.50 1
06/26/2024 06/27/2024 3.00 1
06/26/2024 06/27/2024 7.00 1
01/08/2024 01/10/2024 32.00 1
07/24/2023 08/01/2023 26.00 1
03/07/2023 03/08/2023 8.00 1
09/01/2022 09/01/2022 9.00 1
10/05/2021 10/12/2021 21.25 1

Mine Details

MSHA Mine ID2302495
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees4
Days/Week5.0
Hours/Shift9.0
Coordinates39.0213890, -90.9691670
Nearest TownMilan

Frequently Asked Questions

How many MSHA violations does IROCK Portable #1 have?

IROCK Portable #1 has 32 MSHA violations on record, of which 7 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $7K.

What type of mine is IROCK Portable #1?

IROCK Portable #1 is a Surface mine producing Stone, located in Milan, Shelby County, MO. It currently has 4 employees.

Has anyone been injured or killed at IROCK Portable #1?

According to MSHA records, IROCK Portable #1 has 3 reported accident/injury records and 0 fatalities on file.

Who operates IROCK Portable #1?

IROCK Portable #1 is operated by Magruder Limestone Co and controlled by Mark Magruder. MSHA Mine ID: 2302495.