Key Takeaway

Plant #9 is a active surface mine producing Stone, located in Greenfield, Adair County, IA. It has 110 violations on record (15 S&S) and $17K in proposed penalties. Operated by Schildberg Construction Company Inc.

Plant #9

Active Surface Stone

Operator: Schildberg Construction Company Inc

Controller: Mark Schildberg

Location: Greenfield, Adair County, IA

Employees: 13

110
Violations
15
S&S Violations
14
Accidents
$17K
Penalties

Recent Violations

View all 110 →
Date Section S&S Negligence Penalty
01/06/2026 56.14100(c) Non-S&S ModNegligence $151
06/03/2025 56.14101(a)(2) Non-S&S ModNegligence $151
06/03/2025 56.14100(c) Non-S&S ModNegligence $151
01/29/2025 56.4130(b) Non-S&S LowNegligence $151
07/30/2024 56.14207 Non-S&S ModNegligence $147
05/21/2024 56.4402 Non-S&S ModNegligence $147
05/21/2024 56.12004 Non-S&S ModNegligence $147
05/21/2024 56.12004 Non-S&S ModNegligence $147
05/21/2024 56.14107(a) Non-S&S ModNegligence $147
02/07/2024 56.14205 Non-S&S LowNegligence $147
02/06/2024 56.14131(a) S&S ModNegligence $679
02/06/2024 56.11017 Non-S&S LowNegligence $147
02/06/2024 56.12004 Non-S&S HighNegligence $453
03/28/2023 56.12004 Non-S&S ModNegligence $143
03/27/2023 56.12017 Non-S&S ModNegligence $143
03/27/2023 56.14112(a)(1) Non-S&S ModNegligence $143
10/26/2022 56.14101(a)(2) Non-S&S ModNegligence $133
10/26/2022 56.14112(b) Non-S&S ModNegligence $133
10/26/2022 56.12025 Non-S&S ModNegligence $133
04/13/2022 47.41(a) Non-S&S ModNegligence $133

Accidents & Injuries

View all 14 →
Date Classification Injury Days Lost
09/11/2021 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None
07/15/2020 SLIP OR FALL OF PERSON DYS AWY FRM WRK & RESTRCTD ACT 64d lost, 116d restricted
08/17/2018 OTHER INJURIES DUE TO NATURAL CAUSES None
09/20/2017 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None
08/21/2014 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 2d lost
07/08/2014 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 54d restricted
06/25/2009 SLIP OR FALL OF PERSON DAYS AWAY FROM WORK ONLY 1d lost
03/25/2009 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 1d lost
11/29/2007 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 16d restricted
10/26/2007 HANDLING OF MATERIALS DYS AWY FRM WRK & RESTRCTD ACT 12d lost, 20d restricted

Inspections

View all 64 →
Begin End Hours Inspectors
01/12/2026 01/12/2026 4.00 1
01/05/2026 01/06/2026 16.00 1
06/02/2025 06/05/2025 17.50 1
01/29/2025 01/30/2025 15.50 1
07/30/2024 07/31/2024 13.75 1
05/20/2024 05/21/2024 20.00 1
02/06/2024 02/08/2024 26.75 1
06/05/2023 06/05/2023 6.25 1
03/27/2023 03/28/2023 15.50 1
10/26/2022 10/27/2022 21.00 1

Mine Details

MSHA Mine ID1302216
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees13
Days/Week5.0
Hours/Shift11.0
Coordinates41.3050000, -94.4533330
Nearest TownGreenfield

Frequently Asked Questions

How many MSHA violations does Plant #9 have?

Plant #9 has 110 MSHA violations on record, of which 15 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $17K.

What type of mine is Plant #9?

Plant #9 is a Surface mine producing Stone, located in Greenfield, Adair County, IA. It currently has 13 employees.

Has anyone been injured or killed at Plant #9?

According to MSHA records, Plant #9 has 14 reported accident/injury records and 0 fatalities on file.

Who operates Plant #9?

Plant #9 is operated by Schildberg Construction Company Inc and controlled by Mark Schildberg. MSHA Mine ID: 1302216.