Key Takeaway

Curtner Quarry is a intermittent surface mine producing SandAndGravel, located in Milpitas, Santa Clara County, CA. It has 35 violations on record (11 S&S) and $4K in proposed penalties. Operated by DeSilva Gates Construction, LLC.

Curtner Quarry

Intermittent Surface SandAndGravel

Operator: DeSilva Gates Construction, LLC

Controller: De Silva Holding Company Inc; Richard B Gates

Location: Milpitas, Santa Clara County, CA

Employees: 5

35
Violations
11
S&S Violations
2
Accidents
$4K
Penalties

Recent Violations

View all 35 →
Date Section S&S Negligence Penalty
08/31/2022 56.14101(a)(1) Non-S&S ModNegligence $133
10/28/2008 56.14132(a) S&S ModNegligence $243
10/28/2008 56.14100(a) Non-S&S ModNegligence $100
10/28/2008 46.9(g) Non-S&S ModNegligence $100
03/10/2008 56.14107(a) S&S ModNegligence $108
03/10/2008 56.9300(a) S&S ModNegligence $100
05/22/2007 56.13021 Non-S&S ModNegligence $100
05/21/2007 56.14107(a) Non-S&S ModNegligence $100
05/21/2007 56.14107(a) Non-S&S ModNegligence $100
07/27/2006 56.11012 Non-S&S ModNegligence $60
07/26/2006 56.4201(a)(2) Non-S&S ModNegligence $60
04/02/2003 56.14132(a) Non-S&S LowNegligence $55
10/31/2002 56.4101 Non-S&S ModNegligence $55
10/31/2002 56.4200(b)(2) Non-S&S ModNegligence $55
10/31/2002 56.14107(a) Non-S&S ModNegligence $173
10/31/2002 56.14130(g) S&S LowNegligence $150
10/30/2002 56.14132(a) Non-S&S LowNegligence $55
06/20/2002 56.6306(a) Non-S&S LowNegligence $55
06/20/2002 56.6202(a)(4) Non-S&S ModNegligence $55
06/20/2002 56.6306(c) Non-S&S ModNegligence $55

Accidents & Injuries

View all 2 →
Date Classification Injury Days Lost
11/04/2002 SLIP OR FALL OF PERSON DAYS AWAY FROM WORK ONLY 37d lost
07/07/2000 HANDTOOLS (NONPOWERED) DAYS RESTRICTED ACTIVITY ONLY 25d restricted

Inspections

View all 26 →
Begin End Hours Inspectors
11/03/2025 11/03/2025 6.75 1
01/23/2025 01/23/2025 6.50 1
05/06/2024 05/08/2024 6.50 1
06/11/2023 06/12/2023 14.50 1
06/05/2023 06/06/2023 3.75 1
08/31/2022 08/31/2022 3.75 1
08/29/2011 08/31/2011 9.75 1
08/23/2011 08/23/2011 4.25 1
10/28/2008 10/29/2008 12.25 1
03/10/2008 03/11/2008 11.75 1

Mine Details

MSHA Mine ID0405337
Mine TypeSurface
StatusIntermittent
CommoditySandAndGravel
SIC DescriptionConstruction Sand and Gravel
Employees5
Days/Week5.0
Hours/Shift8.0
Coordinates37.4677780, -121.8900000
Nearest TownMilpitas

Frequently Asked Questions

How many MSHA violations does Curtner Quarry have?

Curtner Quarry has 35 MSHA violations on record, of which 11 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $4K.

What type of mine is Curtner Quarry?

Curtner Quarry is a Surface mine producing SandAndGravel, located in Milpitas, Santa Clara County, CA. It currently has 5 employees.

Has anyone been injured or killed at Curtner Quarry?

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

Who operates Curtner Quarry?

Curtner Quarry is operated by DeSilva Gates Construction, LLC and controlled by De Silva Holding Company Inc; Richard B Gates. MSHA Mine ID: 0405337.