Mining Incidents
Search Operators Mines Alerts Research Controllers Fatalgrams About
English Español
← Back to search

Whale Rock Quarry Metal/Non-Metal

Negranti & Sons · Surface
Controlled by Nicholas E Negranti
Cayucos, San Luis Obispo County, CA  ·  Active
MSHA Mine ID: 0404635

Whale Rock Quarry has $11K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Whale Rock Quarry.

Fatalities
0
Total incidents
1
Years on record
2016
Latest incident
Mar 2016
Compliance record
MSHA citations since 2003
77
citations
20
significant & substantial
$10,586
proposed penalties
$10,586
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
52
inspections on record
958
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: 958 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Whale Rock Quarry has $11K in proposed MSHA penalties and $0 outstanding across 1 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.
$11K
proposed penalties
$11K
current assessed
$11K
paid to date
$0
outstanding
77 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2026-03-03.
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 3,093 0 0 0.0
2025 Q3 3,592 0 0 0.0
2025 Q2 3,886 1 1 257.3
2025 Q1 4,097 0 0 0.0
2024 Q4 4,287 0 0 0.0
2024 Q3 3,794 2 1 527.1
2024 Q2 3,914 0 0 0.0
2024 Q1 3,642 0 0 0.0
Show 84 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 3,165 0 0 0.0
2023 Q3 3,145 0 0 0.0
2023 Q2 3,542 2 0 564.7
2023 Q1 3,043 2 0 657.2
2022 Q4 2,978 0 0 0.0
2022 Q3 2,955 0 0 0.0
2022 Q2 2,891 2 0 691.8
2022 Q1 2,866 1 0 348.9
2021 Q4 2,721 0 0 0.0
2021 Q3 2,230 7 3 3139.0
2021 Q2 2,536 0 0 0.0
2021 Q1 2,646 1 0 377.9
2020 Q4 2,560 0 0 0.0
2020 Q3 2,466 1 0 405.5
2020 Q2 2,625 0 0 0.0
2020 Q1 2,693 1 0 371.3
2019 Q4 2,449 0 0 0.0
2019 Q3 2,469 0 0 0.0
2019 Q2 1,786 0 0 0.0
2019 Q1 2,547 0 0 0.0
2018 Q4 1,998 0 0 0.0
2018 Q3 2,044 0 0 0.0
2018 Q2 2,283 0 0 0.0
2018 Q1 2,358 0 0 0.0
2017 Q4 2,402 0 0 0.0
2017 Q3 1,982 0 0 0.0
2017 Q2 2,677 1 1 373.6
2017 Q1 2,127 3 2 1410.4
2016 Q4 1,902 0 0 0.0
2016 Q3 1,631 1 0 613.1
2016 Q2 1,693 0 0 0.0
2016 Q1 2,300 2 0 869.6
2015 Q4 2,035 0 0 0.0
2015 Q3 2,301 1 0 434.6
2015 Q2 2,387 0 0 0.0
2015 Q1 2,241 2 0 892.5
2014 Q4 1,655 0 0 0.0
2014 Q3 1,845 3 0 1626.0
2014 Q2 2,047 0 0 0.0
2014 Q1 2,202 2 0 908.3
2013 Q4 2,137 0 0 0.0
2013 Q3 1,421 0 0 0.0
2013 Q2 1,321 1 0 757.0
2013 Q1 1,823 3 2 1645.6
2012 Q4 1,850 0 0 0.0
2012 Q3 1,945 2 0 1028.3
2012 Q2 1,800 0 0 0.0
2012 Q1 2,273 0 0 0.0
2011 Q4 1,810 2 1 1105.0
2011 Q3 2,071 0 0 0.0
2011 Q2 1,966 1 0 508.6
2011 Q1 1,954 0 0 0.0
2010 Q4 1,798 1 0 556.2
2010 Q3 1,960 1 1 510.2
2010 Q2 1,989 0 0 0.0
2010 Q1 1,903 1 0 525.5
2009 Q4 2,081 0 0 0.0
2009 Q3 2,100 2 0 952.4
2009 Q2 1,961 0 0 0.0
2009 Q1 1,472 4 0 2717.4
2008 Q4 2,147 0 0 0.0
2008 Q3 2,195 0 0 0.0
2008 Q2 2,216 1 0 451.3
2008 Q1 2,533 0 0 0.0
2007 Q4 2,794 3 2 1073.7
2007 Q3 3,064 0 0 0.0
2007 Q2 2,296 0 0 0.0
2007 Q1 2,467 2 0 810.7
2006 Q4 2,807 0 0 0.0
2006 Q3 3,045 4 2 1313.6
2006 Q2 3,133 0 0 0.0
2006 Q1 2,635 4 0 1518.0
2005 Q4 2,110 0 0 0.0
2005 Q3 2,409 2 1 830.2
2005 Q2 2,430 0 0 0.0
2005 Q1 2,136 0 0 0.0
2004 Q4 1,784 2 0 1121.1
2004 Q3 2,009 0 0 0.0
2004 Q2 1,880 1 0 531.9
2004 Q1 1,898 0 0 0.0
2003 Q4 2,041 0 0 0.0
2003 Q3 1,789 0 0 0.0
2003 Q2 1,924 4 3 2079.0
2003 Q1 2,213 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2016 · 1 incident

March 30, 2016 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Negranti & Sons · Struck by... (Not Elsewhere Classified)

Grinding metal when grinder bit and jumped out of employee's hand causing a small laceration on the side of the left hand.

For insurers, brokers, and safety consultants

The full compliance file on Whale Rock 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.

Get the report ($149) See a sample report Monitor a whole book of operators, $99/mo