Key Takeaway

Santee Aggregates is a active surface mine producing Stone, located in Santee, San Diego County, CA. It has 142 violations on record (33 S&S) and $36K in proposed penalties. Operated by Martin Marietta San Diego Aggregates, LLC.

Santee Aggregates

Active Surface Stone

Operator: Martin Marietta San Diego Aggregates, LLC

Controller: Martin Marietta Materials Inc

Location: Santee, San Diego County, CA

Employees: 10

142
Violations
33
S&S Violations
17
Accidents
$36K
Penalties

Recent Violations

View all 142 →
Date Section S&S Negligence Penalty
02/12/2026 56.12008 Non-S&S LowNegligence $0
05/14/2025 56.20003(c) Non-S&S LowNegligence $151
05/14/2025 56.16001 Non-S&S LowNegligence $151
04/16/2025 50.30(a) Non-S&S ModNegligence $151
02/11/2025 56.14132(b) Non-S&S LowNegligence $151
02/11/2025 56.14112(a)(1) Non-S&S LowNegligence $151
02/11/2025 56.20003(a) S&S LowNegligence $151
04/17/2024 56.12028 Non-S&S HighNegligence $147
04/16/2024 56.4200(b)(2) Non-S&S ModNegligence $147
02/22/2024 56.12032 S&S LowNegligence $221
02/21/2024 56.14107(a) Non-S&S LowNegligence $147
02/21/2024 56.20003(a) Non-S&S ModNegligence $147
07/12/2023 56.4201(a)(2) Non-S&S ModNegligence $143
07/11/2023 56.14107(a) Non-S&S LowNegligence $143
04/16/2023 50.30(a) Non-S&S HighNegligence $143
02/28/2023 56.12030 S&S LowNegligence $518
08/10/2022 56.14112(b) Non-S&S LowNegligence $133
04/20/2021 56.4200(b)(2) Non-S&S LowNegligence $125
04/20/2021 56.16006 Non-S&S ModNegligence $125
04/20/2021 56.4603(c) Non-S&S LowNegligence $125

Accidents & Injuries

View all 17 →
Date Classification Injury Days Lost
08/14/2020 POWERED HAULAGE DAYS AWAY FROM WORK ONLY 65d lost
12/15/2016 HANDTOOLS (NONPOWERED) DAYS AWAY FROM WORK ONLY 134d lost
06/29/2016 OTHER NO DYS AWY FRM WRK,NO RSTR ACT None
10/25/2014 MACHINERY DAYS RESTRICTED ACTIVITY ONLY 4d restricted
06/05/2012 HANDTOOLS (NONPOWERED) DAYS RESTRICTED ACTIVITY ONLY 36d restricted
12/28/2009 POWERED HAULAGE DAYS RESTRICTED ACTIVITY ONLY 60d restricted
06/19/2009 MACHINERY DYS AWY FRM WRK & RESTRCTD ACT 2d lost, 67d restricted
03/26/2009 MACHINERY DYS AWY FRM WRK & RESTRCTD ACT 2d lost, 1d restricted
10/14/2008 OTHER NO DYS AWY FRM WRK,NO RSTR ACT None
02/07/2008 SLIP OR FALL OF PERSON DYS AWY FRM WRK & RESTRCTD ACT 1d lost, 7d restricted

Inspections

View all 56 →
Begin End Hours Inspectors
02/11/2026 02/13/2026 21.25 1
05/14/2025 05/15/2025 20.50 1
02/11/2025 02/11/2025 18.50 1
04/15/2024 04/17/2024 25.75 1
02/20/2024 02/22/2024 32.25 1
07/10/2023 07/12/2023 23.50 1
02/27/2023 03/01/2023 24.25 1
08/10/2022 08/12/2022 18.75 1
03/01/2022 03/01/2022 12.00 1
04/19/2021 04/20/2021 31.50 1

Mine Details

MSHA Mine ID0405564
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Stone NEC
Employees10
Days/Week5.0
Hours/Shift8.0
Coordinates32.8680560, -117.0269440
Nearest TownSantee

Frequently Asked Questions

How many MSHA violations does Santee Aggregates have?

Santee Aggregates has 142 MSHA violations on record, of which 33 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $36K.

What type of mine is Santee Aggregates?

Santee Aggregates is a Surface mine producing Stone, located in Santee, San Diego County, CA. It currently has 10 employees.

Has anyone been injured or killed at Santee Aggregates?

According to MSHA records, Santee Aggregates has 17 reported accident/injury records and 0 fatalities on file.

Who operates Santee Aggregates?

Santee Aggregates is operated by Martin Marietta San Diego Aggregates, LLC and controlled by Martin Marietta Materials Inc. MSHA Mine ID: 0405564.