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Rocky River Quarry: 20 MSHA citations Metal/Non-Metal

Midland, Cabarrus County, NC  ·  Abandoned
MSHA Mine ID: 3102033

Rocky River Quarry has $2K in proposed MSHA penalties and $55 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
5
Years on record
1989–2006
Latest incident
Jul 2006
Compliance record
MSHA citations since 2000
20
citations
3
significant & substantial
$1,550
proposed penalties
$1,495
paid to date
96% of proposed penalties paid to date, a $55 gap.
Source: MSHA violations data, updated weekly.
See Martin Marietta Materials, Inc.'s full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
28
inspections on record
224
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: 224 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Rocky River Quarry has $2K in proposed MSHA penalties and $55 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.
$2K
proposed penalties
$2K
current assessed
$1K
paid to date
$55
outstanding
20 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2018-03-15.
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.
15.0%
significant & substantial
5.0%
high negligence or reckless
15.0%
reasonably likely or greater
45.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 5.0% low, 90.0% moderate, 5.0% 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: 2011-08-02, 15 years ago
4
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
Show the individual readings (4)
Date Contaminant Concentration Limit Conc / limit Occupation
2011-08-02 Respirable dust, <.1mg 0 Supervisor, Co. Official
2010-03-31 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-11-16 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-11-16 Respirable dust, <.1mg 0 Scale Man
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. Martin Marietta Aggregates 1989 to 2007
  2. Martin Marietta Materials, Inc. 2007 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2018 1
2011 1
2010 2
2009 2
2008 2
2007 2
2006 4
2005 3
2004 2
2003 3
2002 3
2001 3
2000 2
Source: MSHA quarterly employment and production, updated weekly.

Rocky River Quarry sits in Cabarrus County, North Carolina, where the Census mining category is 0.2% 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.
Cabarrus County, North Carolina · Population 231,262
0.2%
Mining share of county employment
$86,084
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
2018 Q4 0 0 0
2018 Q3 0 0 0
2018 Q2 74 0 0 0.0
2018 Q1 110 1 0 9090.9
2011 Q1 12 0 0 0.0
2010 Q4 8 0 0 0.0
2010 Q3 884 0 0 0.0
2010 Q2 1,170 0 0 0.0
Show 41 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2010 Q1 1,094 0 0 0.0
2009 Q4 1,074 1 0 931.1
2009 Q3 1,264 0 0 0.0
2009 Q2 1,136 0 0 0.0
2009 Q1 1,080 0 0 0.0
2008 Q4 1,230 0 0 0.0
2008 Q3 1,200 0 0 0.0
2008 Q2 1,334 0 0 0.0
2008 Q1 1,202 0 0 0.0
2007 Q4 1,310 0 0 0.0
2007 Q3 1,332 0 0 0.0
2007 Q2 1,476 1 0 677.5
2007 Q1 1,324 0 0 0.0
2006 Q4 2,740 0 0 0.0
2006 Q3 2,218 4 0 1803.4
2006 Q2 3,064 0 0 0.0
2006 Q1 2,956 0 0 0.0
2005 Q4 2,574 0 0 0.0
2005 Q3 2,030 0 0 0.0
2005 Q2 1,538 0 0 0.0
2005 Q1 1,108 0 0 0.0
2004 Q4 1,256 1 0 796.2
2004 Q3 1,296 0 0 0.0
2004 Q2 1,190 0 0 0.0
2004 Q1 1,206 0 0 0.0
2003 Q4 1,138 0 0 0.0
2003 Q3 1,102 0 0 0.0
2003 Q2 1,132 1 0 883.4
2003 Q1 886 0 0 0.0
2002 Q4 1,224 0 0 0.0
2002 Q3 1,984 3 0 1512.1
2002 Q2 1,674 0 0 0.0
2002 Q1 1,040 0 0 0.0
2001 Q4 1,228 0 0 0.0
2001 Q3 926 0 0 0.0
2001 Q2 836 0 0 0.0
2001 Q1 905 0 0 0.0
2000 Q4 935 2 0 2139.0
2000 Q3 970 0 0 0.0
2000 Q2 973 0 0 0.0
2000 Q1 1,028 1 1 972.8
No fatalities recorded at this mine.

Reportable incidents

5 on file

2006 · 1 incident

July 20, 2006 NC · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

While unlocking a camlock fitting on a pit pump the employee was pulling on the 4 inch female fitting trying to get it lose. When the fitting came loose it struck the employee hitting between the nose and upper lip. *** Resulting in four sutures to his upper lip - justifying a reportable medical injury with no restrictive duty or lost days***

2002 · 2 incidents

August 23, 2002 NC · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER
Martin Marietta Aggregates · (Not Elsewhere Classified)

WHILE DOING ROUTINE PLANT MAINTENANCE HE BECAME DIZZY, VERY HOT, AND SWEATY. DID NOT FEEL WELL.

June 29, 2002 NC · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Martin Marietta Aggregates · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS EXITING SKIDSTEER LOADER. SHE STEPPED DOWN THE WRONG WAY AND TWISTED HER LEFT ANKLE CAUSING INSTANT SWELLING/BRUISING.

2000 · 1 incident

February 26, 2000 NC · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EMPLOYEE STATES WHILE REMOVING 4 BOLTS THAT HOLD THE CABLE TENSIONER UNIT IN PLACE ON A LINK BELT CRANE THE UNIT SUDDENLY MOVED STRIKING EMPLOYEE ON HIS LEFT HAND.

1989 · 1 incident

February 6, 1989 NC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Martin Marietta Aggregates · Fall from machine

EMPLOYEE WAS DISMOUNTING A NEW HOLLAND SKID LOADER. AS HE STEPPED OUT, HIS FOOT SLIPPED (FROM THE MUDDY CONDITIONS) AND CAUGHT BETWEEN THE TIRE AND THE BUCKET.