Mining Incidents

Rocky Ridge Quarry: 25 MSHA citations Metal/Non-Metal

Stoneco Inc · Surface
Controlled by CRH PLC
Rocky Ridge, Ottawa County, OH  ·  Abandoned
MSHA Mine ID: 3302696

Rocky Ridge Quarry has $2K 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
11
Years on record
1987–2001
Latest incident
Feb 2001
Compliance record
MSHA citations since 2000
25
citations
6
significant & substantial
$2,194
proposed penalties
$2,194
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
6
inspections on record
92
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: 92 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 Ridge Quarry has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
25 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2002-10-09.
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.
24.0%
significant & substantial
8.0%
high negligence or reckless
24.0%
reasonably likely or greater
32.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 4.0% low, 88.0% moderate, 8.0% 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: 2001-08-01, 25 years ago
0%
of limit-tested samples over the exposure limit
3
samples
1
limit-tested
Most sampled contaminants
  • Unlisted Particulate, respirable, <1% Qtz2
  • Quartz, respirable, >1% Qtz1
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2001-08-01 Quartz, respirable, >1% Qtz 0.52 1.08 0.48 Crusher Oper/Worker
2001-08-01 Unlisted Particulate, respirable, <1% Qtz 0.18 Front-end Loader Operator
2001-08-01 Unlisted Particulate, respirable, <1% Qtz 0.42 Utility 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. Stoneco Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2004 5
2003 5
2002 7
2001 7
2000 11
Source: MSHA quarterly employment and production, updated weekly.

Rocky Ridge Quarry sits in Ottawa County, Ohio, where the Census mining category is 0.3% 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.
Ottawa County, Ohio · Population 40,161
0.3%
Mining share of county employment
$75,728
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
2004 Q1 1,784 0 0 0.0
2003 Q4 1,390 0 0 0.0
2003 Q3 2,139 0 0 0.0
2003 Q2 2,330 0 0 0.0
2003 Q1 1,050 0 0 0.0
2002 Q4 3,927 4 0 1018.6
2002 Q3 3,586 0 0 0.0
2002 Q2 2,794 0 0 0.0
Show 8 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2002 Q1 3,495 5 2 1430.6
2001 Q4 3,477 0 0 0.0
2001 Q3 4,679 7 2 1496.0
2001 Q2 4,643 0 0 0.0
2001 Q1 3,433 0 0 0.0
2000 Q4 3,722 0 0 0.0
2000 Q3 5,712 9 2 1575.6
2000 Q1 5,215 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

11 on file

2001 · 1 incident

February 6, 2001 OH · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
Stoneco Inc · Over-exertion in lifting objects

WHILE LIFTING A SHEET OF STEEL, HERNIA TO LEFT SIDE. DID NOT MISS ANY WORK UNTIL 10/23/01. RETURNED TO WORK 11/5/01. NINE MISSED DAYS TOTAL DUE TO SURGERY.

2000 · 3 incidents

October 21, 2000 OH · Metal/Non-Metal ELECTRICAL
Stoneco Inc · Accident type, without injuries

SOMETIME BETWEEN 5PM ON 10-20-00 AND 7 AM ON 10-21-00 AN ELECTRICAL FIRE OCCURED IN THE PRIMARY PLANT MCC BUILDING. NO COMPANY PERSONNEL WERE ON SITE. AT THE TIM EOF THE FIRE.

September 4, 2000 OH · Metal/Non-Metal blaster, shooter, shotfirer, explosive worker, powder gang/monkey STEPPING OR KNEELING ON OBJECT
Stoneco Inc · Struck against stationary object

I WAS WALKING ALONG THE SHOT BENCH AND STEPPED ON A ROCK AND TWISTED MY ANKLE.

January 19, 2000 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Stoneco Inc · Caught in, under or between a moving and a stationary object

WHILE CHANGING CONVEYOR IDLERS, SMASHED RIGHT MIDDLE AND RING FINGER BETWEEN NEW IDLER AND CONVEYOR APRON.

1999 · 1 incident

November 12, 1999 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Stoneco Inc · Fall to the walkway or working surface

TRIPPED AND FELL ON LEFT KNEE. BRUISED/CONTUSION OFF WORK 1 DAY- 11-13-99 SATURDAY.

1998 · 1 incident

January 13, 1998 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Stoneco Inc · Over-exertion in lifting objects

LIFTING BIT FOR ROCK DRILL OUT OF TRUCK AT SHOP. SLIPPED AND HURT BACK.

1994 · 1 incident

September 19, 1994 OH · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Stoneco Inc · Struck by falling object

MOVING ROCKS FROM JAW TO WEB FEEDER AND A ROCK FELL AND HIT EE RIGHT OUTSIDE ANKLE.

1991 · 2 incidents

August 19, 1991 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Stoneco Inc · Over-exertion in lifting objects

WHILE LIFTING 5" PIPE THAT WEIGHTS APPROX. 300 LBX. (WITH 2 OTHER EMPLOYEES). HE TWISTED WRONG CAUSING PAIN IN LOWER BACK.

March 8, 1991 OH · Metal/Non-Metal pumper SLIP OR FALL OF PERSON
Stoneco Inc · Fall to lower level, (Not Elsewhere Classified)

SHOULDER PULLED SLIPPED DOWN BANKMENT FELL BACK TRIED TO CATCH SELF PUTTING ARM TO BREAK FALL

1988 · 1 incident

July 30, 1988 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Stoneco Inc · Over-exertion in lifting objects

CHANGING A 55 GAL. DRUM OF OIL, PAIN IN LOWER BACK.

1987 · 1 incident

December 15, 1987 OH · Metal/Non-Metal clerk, timekeeper, office worker, director of sales ELECTRICAL
Stoneco Inc · Flash burns (electric)

WIND BLEW OFF T2E COVER OF A 100 440V. AMP. ELECTRIC BOX FOR THE PUMP.(BOX WAS D ENERGIZED) HE WAS REPLACING THE COVER.THE COVER ARCED THE LEAD IN WIRES AND SHORTED.DAMAGE 2ND DEGREE BURNS OF RIGHT ARM,HAND3AND SHOULDER.