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

Watch this mine

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

Compliance record

MSHA citations since 2003

citations

significant & substantial

$10,586

proposed penalties

$10,586

paid to date

Source: MSHA violations data, updated weekly.

Quarterly safety rates

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

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

No fatalities recorded at this mine.

1 on file

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.