Key Takeaway

Plant #8 is a active surface mine producing Stone, located in Greenfield, Adair County, IA. It has 112 violations on record (22 S&S) and $29K in proposed penalties. Operated by Schildberg Construction Company Inc.

Plant #8

Active Surface Stone

Operator: Schildberg Construction Company Inc

Controller: Mark Schildberg

Location: Greenfield, Adair County, IA

Employees: 10

112
Violations
22
S&S Violations
10
Accidents
$29K
Penalties

Recent Violations

View all 112 →
Date Section S&S Negligence Penalty
06/11/2025 56.14107(a) Non-S&S ModNegligence $151
06/11/2025 47.44(b) Non-S&S ModNegligence $151
06/11/2025 56.14116(a) Non-S&S ModNegligence $151
05/22/2024 56.14207 Non-S&S ModNegligence $147
05/22/2024 56.14107(a) Non-S&S HighNegligence $189
02/21/2024 56.14107(a) Non-S&S LowNegligence $147
04/05/2023 56.6202(a)(4) Non-S&S ModNegligence $143
05/04/2022 56.11003 Non-S&S ModNegligence $133
06/10/2021 56.14132(a) Non-S&S LowNegligence $125
04/07/2021 56.14211(c) S&S HighNegligence $3,917
12/15/2020 56.12004 Non-S&S ModNegligence $125
12/15/2020 56.14107(a) Non-S&S ModNegligence $125
12/15/2020 56.14112(b) Non-S&S ModNegligence $125
12/15/2020 56.14112(b) Non-S&S ModNegligence $125
12/15/2020 56.14112(b) Non-S&S ModNegligence $125
02/05/2020 56.12004 Non-S&S ModNegligence $123
02/05/2020 56.12008 Non-S&S ModNegligence $123
02/05/2020 56.12028 Non-S&S ModNegligence $123
02/05/2020 56.14101(a)(2) Non-S&S LowNegligence $123
02/05/2020 56.4102 Non-S&S ModNegligence $123

Accidents & Injuries

View all 10 →
Date Classification Injury Days Lost
08/21/2023 DISORDERS (PHYSICAL AGENTS) OCCUPATNAL ILLNESS NOT DEG 1-6 None
08/18/2015 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 112d restricted
06/30/2011 DISORDERS (PHYSICAL AGENTS) OCCUPATNAL ILLNESS NOT DEG 1-6 5d lost
11/08/2010 SLIP OR FALL OF PERSON DAYS AWAY FROM WORK ONLY 13d lost
09/02/2009 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None
07/01/2008 HANDTOOLS (NONPOWERED) ALL OTHER CASES (INCL 1ST AID) None
05/12/2008 MACHINERY DAYS AWAY FROM WORK ONLY 3d lost
03/13/2006 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 18d lost
01/16/2004 HANDTOOLS (NONPOWERED) DAYS AWAY FROM WORK ONLY 2d lost
01/24/2000 HANDLING OF MATERIALS PERM TOT OR PERM PRTL DISABLTY 18d lost

Inspections

View all 63 →
Begin End Hours Inspectors
12/08/2025 12/10/2025 32.50 1
06/11/2025 06/12/2025 18.00 1
02/03/2025 02/04/2025 21.00 1
05/22/2024 05/22/2024 1.00 1
05/22/2024 05/22/2024 7.50 1
02/20/2024 02/21/2024 18.50 1
04/05/2023 04/05/2023 13.50 1
10/05/2022 10/06/2022 14.25 1
05/03/2022 05/05/2022 12.25 1
03/01/2022 03/02/2022 9.25 1

Mine Details

MSHA Mine ID1302178
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees10
Days/Week5.0
Hours/Shift10.0
Coordinates41.3050000, -94.4533330
Nearest TownGreenfield

Frequently Asked Questions

How many MSHA violations does Plant #8 have?

Plant #8 has 112 MSHA violations on record, of which 22 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $29K.

What type of mine is Plant #8?

Plant #8 is a Surface mine producing Stone, located in Greenfield, Adair County, IA. It currently has 10 employees.

Has anyone been injured or killed at Plant #8?

According to MSHA records, Plant #8 has 10 reported accident/injury records and 0 fatalities on file.

Who operates Plant #8?

Plant #8 is operated by Schildberg Construction Company Inc and controlled by Mark Schildberg. MSHA Mine ID: 1302178.