Key Takeaway

Portable #2 is a intermittent surface mine producing Stone, located in Milpitas, Santa Clara County, CA. It has 6 violations on record (1 S&S) and $743 in proposed penalties. Operated by Kroeker Inc.

Portable #2

Intermittent Surface Stone

Operator: Kroeker Inc

Controller: Jeff Kroeker; Jill L. Kroeker

Location: Milpitas, Santa Clara County, CA

Employees: 2

6
Violations
1
S&S Violations
0
Accidents
$743
Penalties

Recent Violations

View all 6 →
Date Section S&S Negligence Penalty
05/22/2012 56.14100(b) Non-S&S ModNegligence $100
05/09/2011 56.12004 Non-S&S ModNegligence $100
05/09/2011 56.14107(a) Non-S&S HighNegligence $100
05/09/2011 56.14107(a) Non-S&S ModNegligence $100
05/09/2011 56.11002 S&S ModNegligence $243
05/09/2011 56.9301 Non-S&S HighNegligence $100

Inspections

View all 3 →
Begin End Hours Inspectors
07/14/2025 07/15/2025 4.00 1
05/22/2012 05/23/2012 21.50 1
05/09/2011 05/10/2011 16.75 1

Mine Details

MSHA Mine ID0405824
Mine TypeSurface
StatusIntermittent
CommodityStone
SIC DescriptionCrushed, Broken Stone NEC
Employees2
Days/Week5.0
Hours/Shift8.0
Coordinates37.4666670, -121.8894440
Nearest TownMilpitas

Frequently Asked Questions

How many MSHA violations does Portable #2 have?

Portable #2 has 6 MSHA violations on record, of which 1 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $743.

What type of mine is Portable #2?

Portable #2 is a Surface mine producing Stone, located in Milpitas, Santa Clara County, CA. It currently has 2 employees.

Has anyone been injured or killed at Portable #2?

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

Who operates Portable #2?

Portable #2 is operated by Kroeker Inc and controlled by Jeff Kroeker; Jill L. Kroeker. MSHA Mine ID: 0405824.