Oliver De Silva Inc · Fall from ladders
CLIMBED DOWN A 5 FT LADDER IMPROPERLY (FACING OUT) SLIPPED CAUSING A STRAIN TO BACK.
Curtner Quarry Metal/Non-Metal
DeSilva Gates Construction, LLC
· Surface
Controlled by
De Silva Holding Company Inc; Richard B Gates
Milpitas,
Santa Clara County,
CA
·
Intermittent
MSHA Mine ID: 0405337
Curtner Quarry has $4K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 3
- Years on record
- 1997–2002
- Latest incident
- Nov 2002
Compliance record
MSHA citations since 2000
35
citations
11
significant & substantial
$4,168
proposed penalties
$3,557
paid to date
85% of proposed penalties paid to date, a $611 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
26
inspections on record
341
inspection hours
n/a
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Rate withheld: 341 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Curtner Quarry has $4K in proposed MSHA penalties and $0 outstanding across 3 contested dockets.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
35 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2022-08-31.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 1,288 | 0 | 0 | 0.0 |
| 2025 Q3 | 1,160 | 0 | 0 | 0.0 |
| 2025 Q2 | 3,990 | 0 | 0 | 0.0 |
| 2025 Q1 | 313 | 0 | 0 | 0.0 |
| 2024 Q4 | 1,170 | 0 | 0 | 0.0 |
| 2024 Q3 | 3,778 | 0 | 0 | 0.0 |
| 2024 Q2 | 3,951 | 0 | 0 | 0.0 |
| 2024 Q1 | 0 | 0 | 0 |
Show 50 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 4,130 | 0 | 0 | 0.0 |
| 2023 Q3 | 5,587 | 0 | 0 | 0.0 |
| 2023 Q2 | 2,329 | 0 | 0 | 0.0 |
| 2023 Q1 | 1,032 | 0 | 0 | 0.0 |
| 2022 Q4 | 3,683 | 0 | 0 | 0.0 |
| 2022 Q3 | 4,586 | 1 | 0 | 218.1 |
| 2022 Q2 | 6,807 | 0 | 0 | 0.0 |
| 2011 Q2 | 64 | 0 | 0 | 0.0 |
| 2011 Q1 | 32 | 0 | 0 | 0.0 |
| 2010 Q4 | 32 | 0 | 0 | 0.0 |
| 2010 Q2 | 32 | 0 | 0 | 0.0 |
| 2010 Q1 | 32 | 0 | 0 | 0.0 |
| 2009 Q4 | 32 | 0 | 0 | 0.0 |
| 2009 Q3 | 32 | 0 | 0 | 0.0 |
| 2009 Q2 | 12 | 0 | 0 | 0.0 |
| 2009 Q1 | 12 | 0 | 0 | 0.0 |
| 2008 Q4 | 199 | 3 | 1 | 15075.4 |
| 2008 Q3 | 0 | 0 | 0 | |
| 2008 Q2 | 0 | 0 | 0 | |
| 2008 Q1 | 0 | 2 | 2 | |
| 2007 Q4 | 0 | 0 | 0 | |
| 2007 Q3 | 0 | 0 | 0 | |
| 2007 Q2 | 1,703 | 3 | 0 | 1761.6 |
| 2007 Q1 | 1,260 | 0 | 0 | 0.0 |
| 2006 Q4 | 1,672 | 0 | 0 | 0.0 |
| 2006 Q3 | 1,726 | 2 | 0 | 1158.7 |
| 2006 Q2 | 2,343 | 0 | 0 | 0.0 |
| 2005 Q4 | 0 | 0 | 0 | |
| 2005 Q3 | 0 | 0 | 0 | |
| 2005 Q1 | 0 | 0 | 0 | |
| 2004 Q4 | 0 | 0 | 0 | |
| 2004 Q3 | 103 | 0 | 0 | 0.0 |
| 2004 Q2 | 5,338 | 0 | 0 | 0.0 |
| 2004 Q1 | 3,707 | 0 | 0 | 0.0 |
| 2003 Q4 | 8,314 | 0 | 0 | 0.0 |
| 2003 Q3 | 11,306 | 0 | 0 | 0.0 |
| 2003 Q2 | 11,035 | 1 | 0 | 90.6 |
| 2003 Q1 | 10,492 | 0 | 0 | 0.0 |
| 2002 Q4 | 13,106 | 5 | 1 | 381.5 |
| 2002 Q3 | 16,354 | 0 | 0 | 0.0 |
| 2002 Q2 | 15,973 | 4 | 1 | 250.4 |
| 2002 Q1 | 10,850 | 8 | 4 | 737.3 |
| 2001 Q4 | 10,350 | 0 | 0 | 0.0 |
| 2001 Q3 | 16,010 | 0 | 0 | 0.0 |
| 2001 Q2 | 14,542 | 0 | 0 | 0.0 |
| 2001 Q1 | 13,372 | 1 | 1 | 74.8 |
| 2000 Q4 | 14,498 | 0 | 0 | 0.0 |
| 2000 Q3 | 14,676 | 0 | 0 | 0.0 |
| 2000 Q2 | 16,820 | 5 | 1 | 297.3 |
| 2000 Q1 | 12,985 | 0 | 0 | 0.0 |
No fatalities recorded at this mine.
Reportable incidents
3 on file2002 · 1 incident
2000 · 1 incident
July 7, 2000
CA · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
HANDTOOLS (NONPOWERED)
Oliver De Silva Inc · Struck by... (Not Elsewhere Classified)
WHILE ATTEMPTING TO STRIKE A FILTER HOUSING WITH A HAMMER, THE HAMMER GLANCED OFF OF A HOSE DIRECTING THE HAMMER TO STRIKE HIS LEFT THUMB.
1997 · 1 incident
September 10, 1997
CA · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
HANDTOOLS (NONPOWERED)
Oliver De Silva Inc · Caught in, under or between (Not Elsewhere Classified)
EMPLOYEE WAS USING A PRY BAR TO DISLODGE A ROCK STUCK BETWEEN STEEL SPREADER BAR ON FEED HOPPER AND GRIZZLEY. BAR SLIPPED AND HIS FINGER WAS CAUGHT BETWEEN THE BAR AND FEED HOPPER WALL.
For insurers, brokers, and safety consultants
The full compliance file on Curtner Quarry
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.