Key Takeaway
Yosemite Slate Quarry is a intermittent surface mine producing Stone, located in mariposa, Mariposa County, CA. It has 19 violations on record (6 S&S) and $3K in proposed penalties. Operated by Mariposa Yosemite Slate Quarry.
Yosemite Slate Quarry
Operator: Mariposa Yosemite Slate Quarry
Controller: David R Butler
Location: mariposa, Mariposa County, CA
Employees: 6
Recent Violations
View all 19 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 06/25/2024 | 50.30(a) | Non-S&S | LowNegligence | $147 |
| 06/25/2024 | 50.30(a) | Non-S&S | LowNegligence | $147 |
| 06/25/2024 | 50.30(a) | Non-S&S | LowNegligence | $147 |
| 06/25/2024 | 50.30(a) | Non-S&S | LowNegligence | $147 |
| 12/06/2017 | 50.30(a) | Non-S&S | ModNegligence | $118 |
| 10/13/2016 | 56.9300(a) | S&S | ModNegligence | $300 |
| 06/14/2016 | 56.14100(c) | Non-S&S | ModNegligence | $114 |
| 10/20/2015 | 50.30(a) | Non-S&S | ModNegligence | $100 |
| 05/06/2014 | 56.14100(b) | S&S | HighNegligence | $263 |
| 02/26/2013 | 56.9300(b) | S&S | LowNegligence | $243 |
| 03/11/2009 | 50.30(a) | Non-S&S | LowNegligence | $100 |
| 08/28/2007 | 50.30(a) | Non-S&S | ModNegligence | $100 |
| 08/28/2007 | 56.14101(a)(2) | Non-S&S | ModNegligence | $100 |
| 08/28/2007 | 56.14132(a) | Non-S&S | ModNegligence | $100 |
| 02/14/2007 | 50.30(a) | Non-S&S | LowNegligence | $60 |
| 03/09/2005 | 56.5001(a)/.5005 | S&S | ModNegligence | $99 |
| 03/09/2005 | 56.5002 | S&S | ModNegligence | $99 |
| 02/21/2001 | 56.14101(a)(2) | S&S | ModNegligence | $113 |
| 02/21/2001 | 56.14115(b) | Non-S&S | ModNegligence | $55 |
Accidents & Injuries
View all 1 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/20/2006 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 11d lost |
Inspections
View all 50 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 12/09/2024 | 12/09/2024 | 3.50 | 1 |
| 06/24/2024 | 06/25/2024 | 18.00 | 1 |
| 08/10/2023 | 08/10/2023 | 4.50 | 1 |
| 09/22/2022 | 09/23/2022 | 16.50 | 1 |
| 08/25/2022 | 08/25/2022 | 7.00 | 1 |
| 09/08/2021 | 09/09/2021 | 15.25 | 1 |
| 03/03/2020 | 03/03/2020 | 7.25 | 1 |
| 09/03/2019 | 09/04/2019 | 13.50 | 1 |
| 11/27/2018 | 11/27/2018 | 7.75 | 1 |
| 06/11/2018 | 06/12/2018 | 18.50 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Yosemite Slate Quarry have?
Yosemite Slate Quarry has 19 MSHA violations on record, of which 6 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $3K.
What type of mine is Yosemite Slate Quarry?
Yosemite Slate Quarry is a Surface mine producing Stone, located in mariposa, Mariposa County, CA. It currently has 6 employees.
Has anyone been injured or killed at Yosemite Slate Quarry?
According to MSHA records, Yosemite Slate Quarry has 1 reported accident/injury records and 0 fatalities on file.
Who operates Yosemite Slate Quarry?
Yosemite Slate Quarry is operated by Mariposa Yosemite Slate Quarry and controlled by David R Butler. MSHA Mine ID: 0400357.