Key Takeaway

PORTABLE GRIZZLY #2 is a intermittent surface mine producing Stone, located in Clayton, Clayton County, IA. It has 12 violations on record (0 S&S) and $1K in proposed penalties. Operated by C J MOYNA & SONS LLC.

PORTABLE GRIZZLY #2

Intermittent Surface Stone

Operator: C J MOYNA & SONS LLC

Controller: John P Moyna

Location: Clayton, Clayton County, IA

Employees: 2

12
Violations
0
S&S Violations
0
Accidents
$1K
Penalties

Recent Violations

View all 12 →
Date Section S&S Negligence Penalty
03/12/2014 57.1000 Non-S&S ModNegligence $100
03/12/2014 57.15001 Non-S&S ModNegligence $100
01/22/2009 48.25(a) Non-S&S HighNegligence $293
01/22/2009 48.25(a) Non-S&S ModNegligence $100
01/14/2009 57.12006 Non-S&S LowNegligence $100
01/14/2009 57.14132(b)(1) Non-S&S ModNegligence $100
01/13/2009 57.12025 Non-S&S LowNegligence $100
07/29/2008 57.1000 Non-S&S ModNegligence $100
07/29/2008 57.14112(b) Non-S&S ModNegligence $100
07/29/2008 57.14100(c) Non-S&S ModNegligence $100
07/29/2008 57.14100(c) Non-S&S ModNegligence $100
07/29/2008 57.14100(c) Non-S&S ModNegligence $100

Inspections

View all 20 →
Begin End Hours Inspectors
08/04/2025 08/04/2025 3.25 1
08/12/2024 08/12/2024 3.75 1
05/11/2023 05/11/2023 5.50 1
07/17/2019 07/17/2019 0.50 1
04/17/2018 04/17/2018 6.00 1
08/02/2017 08/02/2017 2.50 1
09/15/2016 09/16/2016 17.50 1
08/16/2016 08/16/2016 1.50 1
06/23/2015 06/23/2015 4.00 1
03/12/2014 03/12/2014 22.50 1

Mine Details

MSHA Mine ID1302373
Mine TypeSurface
StatusIntermittent
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees2
Days/Week5.0
Hours/Shift8.0
Coordinates42.8538890, -91.4052780
Nearest TownClayton

Frequently Asked Questions

How many MSHA violations does PORTABLE GRIZZLY #2 have?

PORTABLE GRIZZLY #2 has 12 MSHA violations on record, of which 0 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $1K.

What type of mine is PORTABLE GRIZZLY #2?

PORTABLE GRIZZLY #2 is a Surface mine producing Stone, located in Clayton, Clayton County, IA. It currently has 2 employees.

Has anyone been injured or killed at PORTABLE GRIZZLY #2?

According to MSHA records, PORTABLE GRIZZLY #2 has 0 reported accident/injury records and 0 fatalities on file.

Who operates PORTABLE GRIZZLY #2?

PORTABLE GRIZZLY #2 is operated by C J MOYNA & SONS LLC and controlled by John P Moyna. MSHA Mine ID: 1302373.