Key Takeaway
Littlerock Quarry is a active surface mine producing SandAndGravel, located in Littlerock, Los Angeles County, CA. It has 265 violations on record (93 S&S) and $124K in proposed penalties. Operated by Hi-Grade Materials Co.
Littlerock Quarry
Operator: Hi-Grade Materials Co
Controller: Robar Enterprises Inc
Location: Littlerock, Los Angeles County, CA
Employees: 13
Recent Violations
View all 265 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 01/08/2025 | 56.4203 | Non-S&S | LowNegligence | $151 |
| 01/08/2025 | 56.14100(b) | Non-S&S | LowNegligence | $151 |
| 01/08/2025 | 56.12008 | Non-S&S | LowNegligence | $432 |
| 01/08/2025 | 56.14112(b) | Non-S&S | LowNegligence | $193 |
| 01/07/2025 | 56.12018 | Non-S&S | LowNegligence | $151 |
| 01/07/2025 | 56.16006 | Non-S&S | LowNegligence | $151 |
| 01/07/2025 | 56.14205 | Non-S&S | LowNegligence | $151 |
| 01/07/2025 | 56.16006 | Non-S&S | LowNegligence | $151 |
| 01/07/2025 | 56.11003 | Non-S&S | LowNegligence | $151 |
| 01/07/2025 | 56.11012 | Non-S&S | ModNegligence | $288 |
| 10/16/2024 | 50.30(a) | Non-S&S | HighNegligence | $147 |
| 08/14/2024 | 56.14107(a) | S&S | ModNegligence | $2,253 |
| 08/13/2024 | 56.12004 | Non-S&S | LowNegligence | $147 |
| 08/13/2024 | 56.12008 | Non-S&S | LowNegligence | $260 |
| 08/13/2024 | 56.14112(b) | Non-S&S | LowNegligence | $260 |
| 08/13/2024 | 56.20003(a) | S&S | LowNegligence | $388 |
| 08/13/2024 | 56.12004 | S&S | LowNegligence | $1,287 |
| 08/13/2024 | 56.14112(a)(1) | Non-S&S | LowNegligence | $147 |
| 08/13/2024 | 56.20003(a) | S&S | LowNegligence | $388 |
| 08/13/2024 | 46.9(c)(1)(ii) | Non-S&S | HighNegligence | $172 |
Accidents & Injuries
View all 26 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 06/14/2024 | FIRE | FATALITY | Fatal |
| 03/11/2023 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 324d lost |
| 03/25/2021 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 12/16/2020 | MACHINERY | ACCIDENT ONLY | None |
| 10/03/2020 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 179d lost |
| 05/02/2016 | HANDTOOLS (NONPOWERED) | DYS AWY FRM WRK & RESTRCTD ACT | 61d lost, 52d restricted |
| 02/04/2016 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 64d restricted |
| 05/20/2014 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 13d restricted |
| 10/16/2013 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 48d restricted |
| 07/09/2012 | HANDTOOLS (NONPOWERED) | DYS AWY FRM WRK & RESTRCTD ACT | 30d lost, 14d restricted |
Inspections
View all 117 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 11/20/2025 | 11/20/2025 | 4.25 | 1 |
| 09/02/2025 | 09/05/2025 | 21.00 | 1 |
| 08/14/2025 | 08/14/2025 | 4.50 | 1 |
| 06/04/2025 | 06/04/2025 | 4.50 | 1 |
| 03/18/2025 | 03/19/2025 | 4.50 | 1 |
| 01/06/2025 | 01/08/2025 | 47.75 | 2 |
| 11/05/2024 | 11/06/2024 | 2.75 | 1 |
| 08/20/2024 | 08/20/2024 | 4.50 | 1 |
| 08/19/2024 | 12/09/2024 | 2.00 | 1 |
| 08/12/2024 | 08/15/2024 | 26.50 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Littlerock Quarry have?
Littlerock Quarry has 265 MSHA violations on record, of which 93 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $124K.
What type of mine is Littlerock Quarry?
Littlerock Quarry is a Surface mine producing SandAndGravel, located in Littlerock, Los Angeles County, CA. It currently has 13 employees.
Has anyone been injured or killed at Littlerock Quarry?
According to MSHA records, Littlerock Quarry has 26 reported accident/injury records and 1 fatalities on file.
Who operates Littlerock Quarry?
Littlerock Quarry is operated by Hi-Grade Materials Co and controlled by Robar Enterprises Inc. MSHA Mine ID: 0404802.