Key Takeaway
Fort Independence Quarry is a active surface mine producing Nonmetal, located in Fort Independence, Inyo County, CA. It has 20 violations on record (7 S&S) and $8K in proposed penalties. Operated by Grinding Rock Aggregates.
Fort Independence Quarry
Operator: Grinding Rock Aggregates
Controller: Fort Independence Tribe
Location: Fort Independence, Inyo County, CA
Employees: 3
Recent Violations
View all 20 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/12/2026 | 56.14100(c) | S&S | LowNegligence | $0 |
| 02/12/2026 | 56.11002 | Non-S&S | ModNegligence | $0 |
| 02/12/2026 | 56.14112(b) | Non-S&S | LowNegligence | $0 |
| 02/12/2026 | 56.14107(a) | Non-S&S | ModNegligence | $0 |
| 07/17/2024 | 56.14107(a) | S&S | HighNegligence | $4,628 |
| 07/17/2024 | 56.14107(a) | Non-S&S | LowNegligence | $147 |
| 07/17/2024 | 56.18002(b) | Non-S&S | HighNegligence | $172 |
| 07/26/2023 | 46.7(a) | S&S | LowNegligence | $186 |
| 07/25/2023 | 56.20003(a) | Non-S&S | ModNegligence | $143 |
| 07/25/2023 | 56.14107(a) | Non-S&S | LowNegligence | $143 |
| 07/25/2023 | 56.14107(a) | Non-S&S | ModNegligence | $143 |
| 07/25/2023 | 56.14107(a) | Non-S&S | ModNegligence | $143 |
| 07/25/2023 | 56.20003(a) | S&S | ModNegligence | $143 |
| 07/25/2023 | 56.15005 | S&S | ModNegligence | $346 |
| 07/25/2023 | 46.6(b) | Non-S&S | ModNegligence | $159 |
| 07/25/2023 | 56.14110 | S&S | ModNegligence | $143 |
| 07/25/2023 | 56.9300(a) | S&S | HighNegligence | $1,152 |
| 07/25/2023 | 46.9(b)(2) | Non-S&S | HighNegligence | $143 |
| 07/25/2023 | 56.15007 | Non-S&S | LowNegligence | $143 |
| 10/16/2022 | 50.30(a) | Non-S&S | ModNegligence | $143 |
Inspections
View all 7 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/11/2026 | 02/12/2026 | 16.50 | 1 |
| 07/22/2025 | 07/22/2025 | 4.25 | 1 |
| 10/23/2024 | 10/23/2024 | 8.00 | 1 |
| 08/21/2024 | 08/21/2024 | 14.00 | 1 |
| 07/17/2024 | 07/18/2024 | 13.00 | 1 |
| 07/26/2023 | 07/26/2023 | 2.75 | 1 |
| 07/24/2023 | 07/27/2023 | 36.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Fort Independence Quarry have?
Fort Independence Quarry has 20 MSHA violations on record, of which 7 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $8K.
What type of mine is Fort Independence Quarry?
Fort Independence Quarry is a Surface mine producing Nonmetal, located in Fort Independence, Inyo County, CA. It currently has 3 employees.
Has anyone been injured or killed at Fort Independence Quarry?
According to MSHA records, Fort Independence Quarry has 0 reported accident/injury records and 0 fatalities on file.
Who operates Fort Independence Quarry?
Fort Independence Quarry is operated by Grinding Rock Aggregates and controlled by Fort Independence Tribe. MSHA Mine ID: 0405959.