Key Takeaway

Coast Aggregates Big Rock Creek is a active surface mine producing SandAndGravel, located in Pearblossom, Los Angeles County, CA. It has 146 violations on record (56 S&S) and $187K in proposed penalties. Operated by Coast Aggregates.

Coast Aggregates Big Rock Creek

Active Surface SandAndGravel

Operator: Coast Aggregates

Controller: Kurt Caillier; Randy Caillier

Location: Pearblossom, Los Angeles County, CA

Employees: 22

146
Violations
56
S&S Violations
6
Accidents
$187K
Penalties

Recent Violations

View all 146 →
Date Section S&S Negligence Penalty
02/26/2026 56.14100(b) Non-S&S LowNegligence $0
02/26/2026 56.14109 S&S ModNegligence $0
02/26/2026 56.14107(a) S&S ModNegligence $0
02/25/2026 56.12004 Non-S&S LowNegligence $0
08/05/2025 56.14100(b) Non-S&S LowNegligence $165
04/17/2025 56.12028 Non-S&S LowNegligence $151
04/16/2025 56.20003(a) Non-S&S ModNegligence $151
04/16/2025 56.12008 Non-S&S LowNegligence $193
11/13/2024 56.14107(a) Non-S&S LowNegligence $535
11/13/2024 56.12008 Non-S&S LowNegligence $172
11/13/2024 56.20003(a) S&S LowNegligence $576
11/13/2024 56.14107(a) Non-S&S LowNegligence $797
11/13/2024 56.14112(b) Non-S&S LowNegligence $172
11/13/2024 56.12008 Non-S&S ModNegligence $260
11/13/2024 56.14112(a)(1) Non-S&S LowNegligence $147
11/13/2024 56.14107(a) Non-S&S HighNegligence $5,884
11/13/2024 56.14112(b) Non-S&S LowNegligence $172
06/13/2024 56.12028 Non-S&S ModNegligence $861
06/12/2024 56.11002 Non-S&S ModNegligence $1,287
06/12/2024 56.18002(b) Non-S&S ModNegligence $147

Accidents & Injuries

View all 6 →
Date Classification Injury Days Lost
05/10/2024 HANDLING OF MATERIALS DYS AWY FRM WRK & RESTRCTD ACT 19d lost, 67d restricted
04/05/2023 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 9d restricted
07/21/2022 DISORDERS (PHYSICAL AGENTS) OCCUPATNAL ILLNESS NOT DEG 1-6 None
06/21/2021 MACHINERY DAYS AWAY FROM WORK ONLY 4d lost
10/22/2019 POWERED HAULAGE DAYS AWAY FROM WORK ONLY 169d lost
01/31/2018 HANDLING OF MATERIALS DAYS RESTRICTED ACTIVITY ONLY 7d restricted

Inspections

View all 33 →
Begin End Hours Inspectors
02/25/2026 02/27/2026 20.50 1
09/05/2025 09/05/2025 6.00 1
08/05/2025 08/05/2025 17.00 1
04/28/2025 04/29/2025 1.00 1
04/14/2025 04/18/2025 27.50 1
11/12/2024 11/14/2024 43.25 3
06/12/2024 06/14/2024 34.00 1
06/11/2024 06/17/2024 22.00 1
10/26/2023 10/26/2023 2.00 1
10/23/2023 10/27/2023 57.00 1

Mine Details

MSHA Mine ID0405908
Mine TypeSurface
StatusActive
CommoditySandAndGravel
SIC DescriptionSand, Common
Employees22
Days/Week5.0
Hours/Shift8.0
Coordinates34.5397220, -117.8927780
Nearest TownPearblossom

Frequently Asked Questions

How many MSHA violations does Coast Aggregates Big Rock Creek have?

Coast Aggregates Big Rock Creek has 146 MSHA violations on record, of which 56 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $187K.

What type of mine is Coast Aggregates Big Rock Creek?

Coast Aggregates Big Rock Creek is a Surface mine producing SandAndGravel, located in Pearblossom, Los Angeles County, CA. It currently has 22 employees.

Has anyone been injured or killed at Coast Aggregates Big Rock Creek?

According to MSHA records, Coast Aggregates Big Rock Creek has 6 reported accident/injury records and 0 fatalities on file.

Who operates Coast Aggregates Big Rock Creek?

Coast Aggregates Big Rock Creek is operated by Coast Aggregates and controlled by Kurt Caillier; Randy Caillier. MSHA Mine ID: 0405908.