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: 570 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Bonny Doon Quarry has $9K 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.
$9K
proposed penalties
$9K
current assessed
$9K
paid to date
$0
outstanding
62 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2010-01-12.
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.
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: 2005-08-31, 20 years ago
0%
of limit-tested samples over the exposure limit
6
samples
2
limit-tested
Most sampled contaminants
Respirable dust, <.1mg4
Quartz, respirable, >1% Qtz2
Show the individual readings (6)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2005-08-31
Quartz, respirable, >1% Qtz
0.2
1.8
0.11
Truck Driver
2005-08-31
Quartz, respirable, >1% Qtz
0.25
1.84
0.14
Crusher Oper/Worker
2005-08-31
Respirable dust, <.1mg
0
Truck Driver
2005-08-31
Respirable dust, <.1mg
0
Front-end Loader Operator
2002-06-20
Respirable dust, <.1mg
0
Drill Operator, Rotary
2002-06-20
Respirable dust, <.1mg
0
Crusher Oper/Worker
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.
Bonny Doon Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 2008.
Injury rate, 2008
ⓘThis rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 3.15 and the all-US-mining average was 3.61 cases per 100 workers.
In California, metal and nonmetal mining averaged 3.34 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year
total case rate
days-away
fatal
2008 *
0.00
0.00
0.000
2007 *
0.00
0.00
0.000
2006 *
15.90
0.00
0.000
2005 *
0.00
0.00
0.000
2004 *
0.00
0.00
0.000
2003 *
0.00
0.00
0.000
2002 *
0.00
0.00
0.000
2001 *
7.35
3.68
0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2010
1
2009
4
2008
14
2007
16
2006
17
2005
19
2004
25
2003
16
2002
23
2001
19
2000
21
Source: MSHA quarterly employment and production, updated weekly.
Bonny Doon Quarry sits in Santa Cruz County, California, where the Census mining category is 0.0% 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.
Santa Cruz County, California · Population 266,021
0.0%
Mining share of county employment
$109,266
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
2010 Q1
153
5
0
32679.7
2009 Q4
90
0
0
0.0
2009 Q3
70
1
0
14285.7
2009 Q2
0
2
0
2009 Q1
4,594
0
0
0.0
2008 Q4
6,275
2
1
318.7
2008 Q3
6,669
9
1
1349.5
2008 Q2
7,234
0
0
0.0
Show 33 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2008 Q1
7,544
1
0
132.6
2007 Q4
11,802
0
0
0.0
2007 Q3
10,560
2
0
189.4
2007 Q2
6,816
0
0
0.0
2007 Q1
9,943
4
0
402.3
2006 Q4
10,032
0
0
0.0
2006 Q3
8,701
0
0
0.0
2006 Q2
9,601
5
2
520.8
2006 Q1
9,403
3
0
319.0
2005 Q4
12,632
0
0
0.0
2005 Q3
9,490
4
1
421.5
2005 Q2
12,299
0
0
0.0
2005 Q1
11,627
3
0
258.0
2004 Q4
12,668
0
0
0.0
2004 Q3
11,233
0
0
0.0
2004 Q2
11,949
0
0
0.0
2004 Q1
12,818
2
0
156.0
2003 Q4
9,982
0
0
0.0
2003 Q3
11,680
5
2
428.1
2003 Q2
12,166
2
1
164.4
2003 Q1
10,685
0
0
0.0
2002 Q4
9,501
0
0
0.0
2002 Q3
10,787
0
0
0.0
2002 Q2
11,937
2
1
167.5
2002 Q1
12,957
5
3
385.9
2001 Q4
12,296
0
0
0.0
2001 Q3
13,344
0
0
0.0
2001 Q2
16,598
0
0
0.0
2001 Q1
12,174
4
0
328.6
2000 Q4
13,981
0
0
0.0
2000 Q3
11,162
0
0
0.0
2000 Q2
11,863
0
0
0.0
2000 Q1
9,444
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
23 on file
2006 · 3 incidents
August 16, 2006CA · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverSLIP OR FALL OF PERSON
EE was climbing into this 50 ton haul truck from the ground. He had walked through some mud and had buildup on his feet. As he climbed the ladder his feet slipped and he fell while holding onto the ladder. He bruised his arm and strained his shoulder. He was seen by Doctor's on Duty and placed on light duty.
May 8, 2006CA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorDISORDERS (REPEATED TRAUMA)
Employee backed a D10 dozer over the berm on Bench 8 and fell to Bench 9, 35 feet below. He suffered minor lacerations on his face and a strained shoulder. He was placed on light duty.
2001 · 2 incidents
August 15, 2001CA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDLING OF MATERIALS
EMPLOYEE WAS OBSERVING A ROCK BREAKER BUST BOULDERS IN THE LIMESTONE CRUSHER HOPPER. A SMALL ROCK SHEARED OFF THE BOULDER AND STRUCK EMPLOYEE IN THE MOUTH. LACERATIONS TO HIS UPPER AND LOWER L IPS.
August 15, 1997CA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON
WHILE OPERATING THE WATER TRUCK, THE EE STRUCK ALARGE ROCK WHILE TRAVELING AT SLOW SPEED. HE WASTHROWN FORWARD & STRUCK HIS STERNUM (CHEST) AGAINST THE WHEEL.
1996 · 1 incident
October 2, 1996CA · Metal/Non-Metalmine manager, mine foreman, mine ownerHANDLING OF MATERIALS
Cemex · Caught in, under or between (Not Elsewhere Classified)
EE WAS WORKING ON LOADER HYDRAULIC PUMP. WHEN THE PUMP PISTON WAS BEING RE-INSERTED IN THE PUMP BODY THE PISTON CAUGHT THE TIP OF THE EE'S LEFT INDEX FINGER BETWEEN THE PISTON AND HOUSING, SEV ERING THE TIP OF IT.
1995 · 1 incident
May 8, 1995CA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
EMPLOYEE WAS USING A SHOVEL TO CLEAN THE AREAS AROUND THE TAIL PULLEY OF 9 BELT AT THE SHALE CRUSHER. WHILE PUSHING THE SHOVEL SHE FELT A "POP" IN HER LOWER BACK. SHE RECEIVED CHIROPRACTIC CAR E AND FOLLOW-UP CARE.
1994 · 4 incidents
October 28, 1994CA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerMACHINERY
EE WAS OPERATING A MOTOR GRADER. WHEN HE TURNED TO LOOK BEHIND HIM HE FELT A TWINGE IN HIS LOWER BACK. EE WAS UNDER CURRENT CARE FOR A NON WORK RELATED INJURY TREATMENT FOR PREVIOUS 6 WEEKS.
EE WAS OPERATING A HAUL TRUCK ACROSS A ROUGH SECTION OF ROAD. HE WAS JOSTLED IN HIS SEAT, BOUNCUNG UP AND DOWN. HE WAS WEARING HIS SEATBELT. HE FELT A PAIN IN HIS LOWER BACK.
February 16, 1994CA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
EMPLOYEE WAS ASSISTING DURING A CONCRETE POUR.EMPLOYEE ALONG WITH TWO OTHER EMPLOYEES WERE HOLDING A FORM IN PLACE.THE FOLLOWING DAY,THE EMPLOYEEWAS TAKEN TO DOCTORS ON DUTY WITH A BACK SPRAIN .
February 1, 1994CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Cemex · Over-exertion in pulling or pushing objects
EMPLOYEE WAS PUSHING WITH HIS FFET AGAINST THE SHALE CRUSHER WHEN HIS KNEE POPPED OUT OF JOINT.THIS IS THE FOURTH TIME THIS HAS OCCURRED.
1993 · 2 incidents
July 22, 1993CA · Metal/Non-Metalblaster, shooter, shotfirer, explosive worker, powder gang/monkeyHANDLING OF MATERIALS
EMPLOYEE WAS LIFTING 30 LB. SACKS OF EXPLOSIVES INTO PICKUP TRUCK. HE DOES NOT REMEMBER ANY SPECIFIC INCIDENT BUT FELT SLIGHT SENSATION ACROSS HIS SHOULDER WHILE LIFTING THE BAGS.
July 14, 1993CA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerPOWERED HAULAGE
EMPLOYEE WAS DRIVING A LOADED 50-TON CAPACITY CATERPILLAR HAUL (DUMP) TRUCK ON THE HAUL ROAD OF THE BONNY DOON LIMESTONE QUARRY WHEN HE LOST CONTROL OF THE VEHICLE AS IT BEGAN TO SLIDE AND THE N OVERTURNED LANDING ON ITS RIGHT SIDE. HEAD CONCUSSION, SCALP LACERATION, MULTIPLE SOFT TISSUE INJURIES. NO RESTRICTED WORK AS EMPLOYEE IS OFF FROM 7-15-93 THROUGH 7-25-93. RELEASED 7-26-93.
1992 · 2 incidents
December 3, 1992CA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerSLIP OR FALL OF PERSON
Cemex · Fall to lower level, (Not Elsewhere Classified)
WHILE EMPLOYEE WAS PLAYING BASKETBALL DURING HIS LUNCH BREAK,HE STEPPED BACK INTO A DEPRESSION IN THE FLOOR AND FELL DOWN,PULLING HIS ACHILLES TENDON.HE WAS PLACED IN A TOE SHORT CAST,GIVEN CR UTCHES AND PLACED ON RESTRICTED DUTY.
February 7, 1992CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
EMPL WAS REACHING INTO A STEEL LOCKER TO GET A REPORT AND BUMPED L ELBOW ON STEEL LOCKER
March 19, 1989CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS