Key Takeaway

MAITRI CANYON PLANT is a active surface mine producing SandAndGravel, located in Corona, Riverside County, CA. It has 273 violations on record (79 S&S) and $125K in proposed penalties. Operated by Foster Sand & Gravel.

MAITRI CANYON PLANT

Active Surface SandAndGravel

Operator: Foster Sand & Gravel

Controller: Eric Werner; Pat Broyles

Location: Corona, Riverside County, CA

Employees: 19

273
Violations
79
S&S Violations
8
Accidents
$125K
Penalties

Recent Violations

View all 273 →
Date Section S&S Negligence Penalty
01/22/2026 56.12032 S&S LowNegligence $0
01/21/2026 56.14100(b) Non-S&S LowNegligence $0
09/18/2025 56.14112(b) Non-S&S LowNegligence $151
09/17/2025 56.12018 Non-S&S LowNegligence $151
09/17/2025 56.20003(a) S&S LowNegligence $151
03/12/2025 56.20003(a) S&S LowNegligence $151
03/12/2025 56.14107(a) Non-S&S LowNegligence $151
09/19/2024 56.11003 S&S ModNegligence $221
09/19/2024 56.14132(b)(3) Non-S&S LowNegligence $147
09/18/2024 56.12002 Non-S&S ModNegligence $147
09/18/2024 56.11012 S&S ModNegligence $736
09/12/2024 56.14112(a)(1) Non-S&S ModNegligence $147
08/18/2023 56.14130(g) S&S ModNegligence $712
08/17/2023 56.14110 Non-S&S ModNegligence $143
08/17/2023 56.11001 Non-S&S LowNegligence $143
12/21/2022 56.14107(a) Non-S&S LowNegligence $143
12/20/2022 56.20003(a) Non-S&S ModNegligence $143
12/20/2022 56.14107(b) Non-S&S ModNegligence $143
12/20/2022 56.20011 Non-S&S ModNegligence $143
12/20/2022 56.14107(a) Non-S&S LowNegligence $143

Accidents & Injuries

View all 8 →
Date Classification Injury Days Lost
10/09/2024 HANDTOOLS (NONPOWERED) NO DYS AWY FRM WRK,NO RSTR ACT None
05/15/2024 SLIP OR FALL OF PERSON DAYS AWAY FROM WORK ONLY 37d lost
11/28/2022 SLIP OR FALL OF PERSON NO DYS AWY FRM WRK,NO RSTR ACT None
04/02/2021 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None
12/03/2019 OTHER INJURIES DUE TO NATURAL CAUSES 2d lost
01/30/2009 SLIP OR FALL OF PERSON DAYS AWAY FROM WORK ONLY 360d lost
10/27/2005 STEPPING OR KNEELING ON OBJECT DAYS AWAY FROM WORK ONLY 161d lost
05/31/2000 HANDTOOLS (NONPOWERED) DAYS AWAY FROM WORK ONLY 12d lost

Inspections

View all 91 →
Begin End Hours Inspectors
01/20/2026 01/23/2026 28.75 1
11/24/2025 11/24/2025 3.00 1
09/17/2025 09/18/2025 22.00 1
09/12/2025 09/12/2025 6.50 1
06/11/2025 06/11/2025 7.00 1
03/20/2025 03/20/2025 7.00 1
03/12/2025 03/13/2025 18.25 1
10/23/2024 10/23/2024 5.00 1
09/11/2024 09/19/2024 46.00 1
03/14/2024 03/14/2024 2.00 1

Mine Details

MSHA Mine ID0403684
Mine TypeSurface
StatusActive
CommoditySandAndGravel
SIC DescriptionConstruction Sand and Gravel
Employees19
Days/Week5.0
Hours/Shift8.0
Coordinates33.7458330, -117.4777780
Nearest TownCorona

Frequently Asked Questions

How many MSHA violations does MAITRI CANYON PLANT have?

MAITRI CANYON PLANT has 273 MSHA violations on record, of which 79 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $125K.

What type of mine is MAITRI CANYON PLANT?

MAITRI CANYON PLANT is a Surface mine producing SandAndGravel, located in Corona, Riverside County, CA. It currently has 19 employees.

Has anyone been injured or killed at MAITRI CANYON PLANT?

According to MSHA records, MAITRI CANYON PLANT has 8 reported accident/injury records and 0 fatalities on file.

Who operates MAITRI CANYON PLANT?

MAITRI CANYON PLANT is operated by Foster Sand & Gravel and controlled by Eric Werner; Pat Broyles. MSHA Mine ID: 0403684.