Mojave Plant & Quarry
Active
Facility
Stone
Operator: Calportland
Controller: Taiheiyo Cement Corp
Location: Mojave, Kern County, CA
Employees: 133
958
Violations
287
S&S Violations
250
Accidents
$550K
Penalties
Recent Violations
View all 958 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 12/08/2025 | 56.20003(a) | S&S | ModNegligence | $697 |
| 12/08/2025 | 56.12004 | Non-S&S | ModNegligence | $151 |
| 12/08/2025 | 56.12018 | Non-S&S | LowNegligence | $209 |
| 12/04/2025 | 46.6 | Non-S&S | ModNegligence | $168 |
| 12/04/2025 | 56.18002(b) | Non-S&S | ModNegligence | $151 |
| 12/04/2025 | 50.30(a) | Non-S&S | ModNegligence | $151 |
| 12/04/2025 | 56.4104(b) | Non-S&S | LowNegligence | $151 |
| 12/03/2025 | 56.14107(a) | S&S | ModNegligence | $883 |
| 12/03/2025 | 56.15005 | S&S | LowNegligence | $226 |
| 12/03/2025 | 56.12004 | Non-S&S | ModNegligence | $398 |
| 12/03/2025 | 56.14112(b) | S&S | ModNegligence | $1,818 |
| 12/03/2025 | 56.12028 | Non-S&S | ModNegligence | $177 |
| 12/03/2025 | 56.12004 | Non-S&S | LowNegligence | $151 |
| 12/02/2025 | 56.14112(b) | Non-S&S | LowNegligence | $209 |
| 12/02/2025 | 56.20003(a) | Non-S&S | LowNegligence | $151 |
| 12/02/2025 | 56.12008 | Non-S&S | LowNegligence | $151 |
| 12/02/2025 | 56.14112(a)(1) | Non-S&S | LowNegligence | $151 |
| 12/01/2025 | 56.14107(a) | Non-S&S | LowNegligence | $151 |
| 12/01/2025 | 56.12034 | Non-S&S | LowNegligence | $151 |
| 11/25/2025 | 56.17001 | Non-S&S | ModNegligence | $151 |
Accidents & Injuries
View all 250 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/22/2026 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 1d lost |
| 11/25/2025 | OTHER | INJURIES DUE TO NATURAL CAUSES | None |
| 08/27/2025 | IGNITION OR EXPLOSION OF GAS OR DUST | ACCIDENT ONLY | None |
| 04/19/2025 | IGNITION OR EXPLOSION OF GAS OR DUST | ACCIDENT ONLY | None |
| 12/05/2023 | OTHER | DAYS RESTRICTED ACTIVITY ONLY | 4d restricted |
| 09/25/2023 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 3d lost |
| 08/11/2023 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 08/01/2023 | HANDTOOLS (NONPOWERED) | DAYS RESTRICTED ACTIVITY ONLY | 3d restricted |
| 06/20/2023 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 255d lost |
| 06/06/2023 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 7d lost |
Inspections
View all 152 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 12/01/2025 | 12/08/2025 | 134.50 | 4 |
| 11/25/2025 | 11/25/2025 | 0.50 | 1 |
| 11/25/2025 | 83.50 | 3 | |
| 08/27/2025 | 12/19/2025 | 62.00 | 1 |
| 06/09/2025 | 06/11/2025 | 31.75 | 1 |
| 05/21/2025 | 05/22/2025 | 18.25 | 1 |
| 04/21/2025 | 04/24/2025 | 119.25 | 3 |
| 02/10/2025 | 02/13/2025 | 114.50 | 3 |
| 09/03/2024 | 09/11/2024 | 165.25 | 4 |
| 07/08/2024 | 07/09/2024 | 12.50 | 1 |
Mine Details
MSHA Mine ID0400036
Mine TypeFacility
StatusActive
CommodityStone
SIC DescriptionCement
Employees133
Days/Week7.0
Hours/Shift10.0
Coordinates35.0383330, -118.2947220
Nearest TownMojave
Related Mines
Boron Operations
Boron, Kern County, CA
1,981 violations
Active
LEBEC CEMENT PLANT
lebec, Kern County, CA
1,852 violations
Active
ORO GRANDE QUARRY
Oro Grande, San Bernardino County, CA
1,514 violations
Active
Tehachapi Cement, LLC.
Tehachapi, Kern County, CA
1,221 violations
Active
Redding Plant
Redding, Shasta County, CA
1,197 violations
Active
RILLITO PLANT
Rillito, Pima County, AZ
735 violations
Active
Colton Plant & Quarry
Colton, San Bernardino County, CA
428 violations
Abandoned
Santosh DBA CalPortland
Portland, Columbia County, OR
402 violations
Active
Frequently Asked Questions
How many MSHA violations does Mojave Plant & Quarry have?
Mojave Plant & Quarry has 958 MSHA violations on record, of which 287 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $550K.
What type of mine is Mojave Plant & Quarry?
Mojave Plant & Quarry is a Facility mine producing Stone, located in Mojave, Kern County, CA. It currently has 133 employees.
Has anyone been injured or killed at Mojave Plant & Quarry?
According to MSHA records, Mojave Plant & Quarry has 250 reported accident/injury records and 1 fatalities on file.
Who operates Mojave Plant & Quarry?
Mojave Plant & Quarry is operated by Calportland and controlled by Taiheiyo Cement Corp. MSHA Mine ID: 0400036.