Mining Incidents

Esmeralda Project/Martinez-Chesco: 13 MSHA citations Metal/Non-Metal

Hawthorne, Mineral County, NV  ·  Abandoned
MSHA Mine ID: 2602517

Esmeralda Project/Martinez-Chesco has $911 in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
8
Years on record
2003–2004
Latest incident
Apr 2004
Compliance record
MSHA citations since 2003
13
citations
4
significant & substantial
$911
proposed penalties
$911
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2003
14
inspections on record
354
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: 354 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Esmeralda Project/Martinez-Chesco has $911 in proposed MSHA penalties and $0 outstanding across 0 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.
$911
proposed penalties
$911
current assessed
$911
paid to date
$0
outstanding
13 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2004-05-11.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
30.8%
significant & substantial
0.0%
high negligence or reckless
30.8%
reasonably likely or greater
76.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 100.0% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2004-05-11, 22 years ago
50%
of limit-tested samples over the exposure limit
9
samples
6
limit-tested
Most sampled contaminants
  • Total Carbon,TC43 over
  • Total Carbon,calculated from elemental carbon.42 over
  • Cristobalite, respirable2
  • Quartz, respirable, >1% Qtz2
Show the individual readings (13)
Date Contaminant Concentration Limit Conc / limit Occupation
2004-03-24 Total Carbon,calculated from elemental carbon. 837.57 400 2.09 Mucking Mach. Operator
2004-03-24 Total Carbon,TC 895.83 400 2.24 Truck Driver
2004-03-24 Total Carbon,calculated from elemental carbon. 598.94 400 1.50 Truck Driver
2004-03-24 Total Carbon,TC 758.48 400 1.90 Mucking Mach. Operator
2003-04-02 Total Carbon,TC 524.08 400 1.31 Complete Load-Haul-Dump
2004-05-11 Cristobalite, respirable 0 Mucking Mach. Operator
2004-05-11 Quartz, respirable, >1% Qtz 0.7 1.75 0.40 Truck Driver
2004-05-11 Cristobalite, respirable 0 Truck Driver
2004-05-11 Quartz, respirable, >1% Qtz 0.87 1.2 0.73 Mucking Mach. Operator
2003-11-05 Unlisted Particulate, respirable, <1% Qtz 6.17 Cement/Concrete Man
2003-04-02 Total Carbon,calculated from elemental carbon. 5 400 0.01 Drill Operator, Jumbo Perc.
2003-04-02 Total Carbon,calculated from elemental carbon. 247.47 400 0.62 Complete Load-Haul-Dump
2003-04-02 Total Carbon,TC 30.94 400 0.08 Drill Operator, Jumbo Perc.
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Ownership history
  1. Metallic Ventures (U. S.), Inc. 2003 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2005 0
2004 12
2003 19
Source: MSHA quarterly employment and production, updated weekly.

Esmeralda Project/Martinez-Chesco sits in Mineral County, Nevada, where the Census mining category is 6.2% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Mineral County, Nevada · Population 4,557
6.2%
Mining share of county employment
$50,584
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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
2005 Q2 0 0 0
2005 Q1 0 0 0
2004 Q4 0 0 0
2004 Q3 0 0 0
2004 Q2 12,316 3 0 243.6
2004 Q1 6,736 3 0 445.4
2003 Q4 7,079 2 0 282.5
2003 Q3 9,030 2 1 221.5
Show 1 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2003 Q2 6,653 1 1 150.3
No fatalities recorded at this mine.

Reportable incidents

8 on file

2004 · 3 incidents

February 24, 2004 NV · Metal/Non-Metal section foreman, bullgang foreman, labor foreman, leadman, shift boss HANDLING OF MATERIALS
Metallic Ventures (U. S.), Inc. · Over-exertion in pulling or pushing objects

HE WAS PUTTING AIR HOSE DOWN CASTING TO BLOW OUT WATER. WHEN HE WENT TO PULL THE HOSES AND CUT HIS FINGER ON DAMAGED PART OF CASING.

January 29, 2004 NV · Metal/Non-Metal laborer, bull gang, faceman, parts runner, roustabout, roof trimmer/scaler HANDLING OF MATERIALS
Metallic Ventures (U. S.), Inc. · Struck by... (Not Elsewhere Classified)

EE WAS UNLOADING TIMBER & GOT A SPLINTER IN THE BACK OF HIS RIGHT HAND.

2003 · 5 incidents

August 27, 2003 NV · Metal/Non-Metal

WHILE MOVING SHOTCRETE MACHINE WITH TWO OTHER MINERS THE INJURED MINER STRAINED A MUSCLE IN HIS LOWER BACK AT 8 PM. TOLD SHIFT BOSS HE WAS FINE. AT 11 PM THE SAME MINER WAS WALKING BY A PALLET WITH (2) 1/2 YD BAGS OF SHOTCRETE ON IT & HE SAYS ONE SLIPPED OFF & PINNED HIS FOOT. AGAIN HE TOLD HIS SHIFT BOSS HE WAS OK. AT END OF HIS WORK SHIFT WE TOOK HIM TO HOSPITAL TO BE CHECKED. DR

June 11, 2003 NV · Metal/Non-Metal miner, nec MACHINERY
Metallic Ventures (U. S.), Inc. · Struck by... (Not Elsewhere Classified)

WHILE ROCKDUSTING WITH SPLIT SET ROCKBOLTS AT THE FACE OF THE DECLINE, A ROCK APPROX 6" BY 6" FELL FROM THE BACK, STRUCK THE JACK LEG DRILL AND RICHCETED OFF TO STRIKE EE IN THE FRONT OF H IS LEFT THIGH, CAUSING A BRUISE. THIS IS REPORTABLE ONLY BECAUSE DR GAVE HIM A PRESCRIPTION MUSCLE RELAXANT.

April 24, 2003 NV · Metal/Non-Metal mine manager, mine foreman, mine owner MACHINERY
Metallic Ventures (U. S.), Inc. · Struck by... (Not Elsewhere Classified)

WHILE CLEANING SHOTCRETE POD, EE'S FINGER WAS INSIDE POD, WHEN ACCIDENTALLY TURNED AIR BACK ON, NIPPING A SMALL PIECE OF FINGER TIP.

April 21, 2003 NV · Metal/Non-Metal miner, nec HANDLING OF MATERIALS
Metallic Ventures (U. S.), Inc. · Struck by rolling or sliding object

WHEN INSTALLING VENT LINE, THE VENT LINE SLID DOWN ON BACK OF SCISSOR'S DECK AND SMASHED EMPLOYEE'S HAND WHILE IT WAS ON THE DECK CONTROL LEVER.