Calmat CO safety record at a glance
Calmat CO has been the subject of 102 Cal/OSHA inspections in California since 2000, opened between Aug 15, 2000 and Sep 11, 2026. 91 of them were planned inspections. 27 of them produced citations, 44 in all: 2 serious. Inspectors proposed $46,900 in penalties; after appeals and settlements the current total is $30,960. The largest single penalty, $17,500, came from an inspection opened Nov 16, 2023 in Napa. That places the employer at #3,354 of 122,854 California employers in the database by penalties.
Industry as coded by the inspecting office: Mining, Quarrying, and Oil and Gas Extraction; Manufacturing. Worksites in Sun Valley, Pleasanton, San Diego, Sanger, Chula Vista, Napa, Indio, San Bernardino.
Every inspection, newest first
Click a date for the citations in that inspection.
| Opened | City | Why | Result | Proposed | Penalty | Closed |
|---|---|---|---|---|---|---|
| Sep 11, 2026 | Sun Valley | Planned | no inspection made | 0 | 0 | Sep 14, 2026 |
| Jul 2, 2026 | Pleasanton | Planned | no citations | 0 | 0 | Sep 11, 2026 |
| Apr 22, 2026 | San Diego | Complaint | no citations | 0 | 0 | Jul 15, 2026 |
| Apr 8, 2026 | Sanger | Planned | no citations | 0 | 0 | Jul 16, 2026 |
| Apr 8, 2026 | Chula Vista | Planned | no citations | 0 | 0 | Jul 13, 2026 |
| Apr 3, 2026 | Napa | Planned | no citations | 0 | 0 | Jul 7, 2026 |
| Feb 26, 2026 | Indio | Planned | no citations | 0 | 0 | Apr 22, 2026 |
| Feb 5, 2026 | San Bernardino | Complaint | 1 citation | $280 | $280 | open |
| Jan 29, 2026 | Palmdale | Planned | no citations | 0 | 0 | Apr 1, 2026 |
| Dec 3, 2025 | Bakersfield | Planned | no citations | 0 | 0 | Jan 12, 2026 |
| Nov 7, 2025 | Vallejo | Planned | no citations | 0 | 0 | Dec 22, 2025 |
| Jul 24, 2025 | Corona | Planned | 1 citation | $560 | $560 | Jan 5, 2026 |
| May 21, 2025 | Cupertino | Planned | no citations | 0 | 0 | Jul 31, 2025 |
| Apr 9, 2025 | San Bernardino | Planned | no citations | 0 | 0 | Jun 24, 2025 |
| Mar 19, 2025 | Irwindale | Planned | 2 citations | $840 | $840 | Oct 20, 2025 |
| Dec 6, 2024 | Irwindale | Planned | no citations | 0 | 0 | May 19, 2025 |
| Sep 19, 2024 | Chula Vista | Planned | no citations | 0 | 0 | Jan 17, 2025 |
| May 16, 2024 | Littlerock | Planned | no citations | 0 | 0 | Aug 27, 2024 |
| May 13, 2024 | Duarte | Planned | no citations | 0 | 0 | Jul 12, 2024 |
| Mar 6, 2024 | Irwindale | Planned | no citations | 0 | 0 | Jun 5, 2024 |
| Feb 29, 2024 | Bakersfield | Planned | 1 citation | $185 | $185 | Jun 24, 2024 |
| Jan 24, 2024 | Irwindale | Planned | no citations | 0 | 0 | Apr 26, 2024 |
| Dec 27, 2023 | Campbell | Accident | no citations | 0 | 0 | Jun 5, 2024 |
| Nov 16, 2023 | Napa | Accident | 3 citations 1 serious | $17,500 | $17,500 | Apr 15, 2024 |
| Jun 22, 2023 | Chula Vista | Unprogrammed related | 1 citation | $13,500 | $560 | Sep 3, 2025 |
| Jun 15, 2023 | Littlerock | Planned | no citations | 0 | 0 | Aug 16, 2023 |
| May 2, 2023 | Duarte | Planned | no citations | 0 | 0 | Jun 6, 2023 |
| Feb 15, 2023 | Irwindale | Unprogrammed related | no citations | 0 | 0 | Apr 19, 2023 |
| Dec 15, 2022 | Bakersfield | Planned | no citations | 0 | 0 | Jan 24, 2023 |
| Oct 28, 2022 | Napa | Planned | 3 citations | $980 | $980 | Apr 3, 2023 |
| Aug 3, 2022 | Irwindale | Planned | no citations | 0 | 0 | Nov 8, 2022 |
| May 26, 2022 | Sun Valley | Planned | no citations | 0 | 0 | Oct 19, 2022 |
| Jun 14, 2021 | Irwindale | Planned | no citations | 0 | 0 | Aug 25, 2021 |
| Jul 21, 2020 | San Rafael | Accident | no citations | 0 | 0 | Jan 14, 2021 |
| Mar 17, 2020 | San Diego | Planned | 2 citations | $560 | $560 | Jul 1, 2020 |
| Aug 28, 2019 | Bakersfield | Planned | no citations | 0 | 0 | Sep 6, 2019 |
| Jun 26, 2019 | Sun Valley | Planned | no citations | 0 | 0 | Sep 6, 2019 |
| Jun 18, 2019 | Irwindale | Planned | no citations | 0 | 0 | Oct 2, 2019 |
| Jun 11, 2019 | Duarte | Planned | no citations | 0 | 0 | Jun 17, 2019 |
| Mar 12, 2019 | San Diego | Planned | no citations | 0 | 0 | Mar 20, 2019 |
| Feb 20, 2019 | Pearblossom | Planned | no citations | 0 | 0 | Apr 10, 2019 |
| Jun 27, 2018 | Littlerock | Planned | no citations | 0 | 0 | Oct 1, 2018 |
| Feb 28, 2018 | Duarte | Planned | no citations | 0 | 0 | Jun 8, 2018 |
| Oct 10, 2017 | Bakersfield | Planned | no citations | 0 | 0 | Oct 10, 2017 |
| Sep 25, 2017 | Irwindale | Planned | no citations | 0 | 0 | Sep 25, 2017 |
| Sep 12, 2017 | Pearblossom | Planned | no citations | 0 | 0 | Oct 6, 2017 |
| Apr 18, 2017 | Sun Valley | Planned | 1 citation | $280 | $280 | Jun 16, 2017 |
| Mar 23, 2017 | Littlerock | Planned | no citations | 0 | 0 | Mar 28, 2017 |
| Jan 10, 2017 | Chula Vista | Planned | no citations | 0 | 0 | Jan 19, 2017 |
| Dec 6, 2016 | Irwindale | Planned | 3 citations | $840 | $840 | Jan 23, 2017 |
| Nov 16, 2016 | Chula Vista | Planned | no inspection made | 0 | 0 | Dec 14, 2016 |
| Nov 15, 2016 | San Diego | Planned | no citations | 0 | 0 | Jan 17, 2017 |
| Oct 25, 2016 | Duarte | Planned | no citations | 0 | 0 | Nov 15, 2016 |
| Sep 16, 2016 | Pearblossom | Planned | no citations | 0 | 0 | Sep 16, 2016 |
| Aug 1, 2016 | Bakersfield | Planned | no citations | 0 | 0 | Aug 1, 2016 |
| Jul 27, 2016 | Irwindale | Planned | 1 citation | $300 | $300 | Oct 31, 2016 |
| May 16, 2016 | Chula Vista | Unprogrammed related | no citations | 0 | 0 | Jul 22, 2016 |
| Mar 17, 2016 | Sun Valley | Unprogrammed related | no citations | 0 | 0 | Sep 6, 2016 |
| Mar 9, 2016 | Chula Vista | Planned | 1 citation | $280 | $280 | Apr 27, 2016 |
| Feb 29, 2016 | San Diego | Planned | no citations | 0 | 0 | Apr 7, 2016 |
| Jan 5, 2016 | Sun Valley | Planned | no citations | 0 | 0 | Jan 20, 2016 |
| Dec 18, 2015 | Littlerock | Planned | no citations | 0 | 0 | Jan 4, 2016 |
| Nov 19, 2015 | Bakersfield | Planned | no citations | 0 | 0 | Dec 8, 2015 |
| Nov 18, 2015 | Bakersfield | Planned | no citations | 0 | 0 | Nov 18, 2015 |
| Nov 4, 2015 | Pearblossom | Planned | no citations | 0 | 0 | Nov 4, 2015 |
| Sep 28, 2015 | Irwindale | Planned | no citations | 0 | 0 | Oct 1, 2015 |
| Aug 25, 2015 | Duarte | Planned | no citations | 0 | 0 | Sep 18, 2015 |
| Aug 13, 2015 | Irwindale | Planned | no citations | 0 | 0 | Aug 19, 2015 |
| Jun 10, 2015 | San Diego | Planned | no citations | 0 | 0 | Jul 2, 2015 |
| May 14, 2015 | Chula Vista | Planned | no citations | 0 | 0 | May 29, 2015 |
| Feb 13, 2015 | Sun Valley | Planned | no citations | 0 | 0 | Mar 24, 2015 |
| Dec 30, 2014 | Irwindale | Planned | 1 citation | $300 | $300 | Dec 28, 2015 |
| Dec 5, 2014 | Pearblossom | Planned | no citations | 0 | 0 | Dec 5, 2014 |
| Nov 17, 2014 | Bakersfield | Planned | no citations | 0 | 0 | Nov 17, 2014 |
| Nov 14, 2014 | Bakersfield | Planned | no citations | 0 | 0 | Nov 14, 2014 |
| Nov 6, 2014 | Duarte | Planned | 2 citations | $500 | $500 | Dec 28, 2015 |
| Oct 23, 2014 | Irwindale | Planned | 2 citations | $450 | $450 | Dec 28, 2015 |
| Aug 27, 2014 | Sanger | Planned | 1 citation | $300 | $300 | Jan 6, 2016 |
| Aug 22, 2014 | Littlerock | Planned | no citations | 0 | 0 | Aug 22, 2014 |
| Apr 25, 2014 | Pearblossom | Planned | no citations | 0 | 0 | Apr 25, 2014 |
| Oct 5, 2012 | Pearblossom | Planned | no citations | 0 | 0 | Oct 5, 2012 |
| Sep 12, 2012 | Chula Vista | Planned | no citations | 0 | 0 | Nov 2, 2012 |
| Jul 17, 2012 | Wheeler Ridge | Planned | no citations | 0 | 0 | Jul 17, 2012 |
| Jan 26, 2012 | Fresno | Planned | 1 citation | 0 | 0 | Feb 17, 2012 |
| Jul 17, 2008 | Canyon Country | Planned | no citations | 0 | 0 | Aug 5, 2008 |
| Mar 5, 2008 | Canyon Country | Planned | no inspection made | 0 | 0 | Mar 5, 2008 |
| Jan 15, 2008 | Sun Valley | Programmed related | 1 citation | $135 | $135 | May 13, 2008 |
| Jan 10, 2008 | Bakersfield | Planned | no citations | 0 | 0 | Feb 21, 2008 |
| Dec 13, 2007 | Pleasanton | Planned | 1 citation | $485 | $485 | Jun 20, 2008 |
| Jun 12, 2007 | Sanger | Planned | no citations | 0 | 0 | Jul 12, 2007 |
| Feb 21, 2007 | Canyon Country | Planned | 1 citation | $280 | $280 | Jul 12, 2007 |
| Nov 1, 2006 | Sun Valley | Planned | no citations | 0 | 0 | Nov 2, 2006 |
| Oct 25, 2006 | Pleasanton | Planned | 2 citations | $850 | $850 | May 18, 2007 |
| Feb 23, 2006 | Pleasanton | Planned | 1 citation | 0 | 0 | May 30, 2006 |
| May 24, 2005 | Pleasanton | Planned | no citations | 0 | 0 | Jun 13, 2005 |
| Feb 3, 2005 | Sun Valley | Planned | 2 citations | $3,560 | $560 | Jul 20, 2006 |
| Jun 4, 2003 | Pleasanton | Planned | 1 citation | $335 | $335 | Jul 12, 2006 |
| Jun 25, 2002 | Sun Valley | Planned | no citations | 0 | 0 | Jul 26, 2002 |
| Mar 5, 2002 | Pleasanton | Planned | 2 citations | $225 | $225 | Jul 2, 2002 |
| Apr 14, 2001 | Pleasanton | Accident | 2 citations 1 serious | $3,000 | $3,000 | Aug 26, 2003 |
| Apr 5, 2001 | Sun Valley | Planned | no citations | 0 | 0 | May 2, 2001 |
| Aug 15, 2000 | Pleasanton | Planned | 4 citations | $375 | $375 | May 25, 2007 |
Also recorded as: Calmat CO dba Vulcan Materials Western Div; Calmat CO/ dba Vulcan Materials Company; Calmat CO dba Vulcan Materials CO Western Division; Calmat CO dba Vulcan Materials Company; Calmat dba Vulcan Materials CO; Calmat dba Vulcan Materials Company; Calmat CO dba Vulcan Materials Western Division; Calmat CO dba Vulcan Materials CO; Calmat CO dba Vulcan Materials Company West Region; Calmat CO.; Calmat.
The rules this employer was cited under
- 8 CCR 3234: 3 citations, $485
- 8 CCR 3999, Hand tools: 2 citations, 1 serious, $16,850
- 8 CCR 1670, Fall protection (construction): 2 citations, 1 serious, $2,980
- 8 CCR 3203, Injury and Illness Prevention Program: 2 citations, $980
- 8 CCR 4002, Machine guarding, moving parts: 2 citations, $750
- 8 CCR 7046: 2 citations, $645
- 8 CCR 4851: 2 citations, $465
- 8 CCR 6995: 2 citations, $465
Accidents investigated
Local pages: San Diego employment lawyer.
How to read this record
Each row is one inspection by Cal/OSHA (or, rarely, federal OSHA) of one worksite. Why is the reason it was opened. Proposed is the penalty the inspector assessed; penalty is the current figure after any appeal or settlement. "Serious" means a realistic possibility of death or serious harm; "willful" and "repeat" carry penalties up to $162,851 each.
Citations document that the employer was told, in writing, what the rule required and when. That knowledge is often the center of a retaliation case: a worker who complained about the hazard an inspector later cited, and was then fired or cut, has a Labor Code 6310 claim, with lost wages and attorney's fees.
Full explainer: how to read a Cal/OSHA record.
If you work, or worked, at Calmat CO
Write down what you reported, to whom and when, and what changed afterward: shifts, pay, duties, write-ups. Request the inspection file from the Cal/OSHA district office using the activity number on the inspection page. An injury goes through workers' compensation; a firing, demotion or threat after a safety complaint or injury report is an employment claim with a one-year deadline at the Labor Commissioner (Labor Code 6310) and a longer one in court. Free, confidential review: (800) 371-3088 or send what you have.
Source: U.S. Department of Labor OSHA enforcement data, California inspections. Record last checked Nov 1, 2026. Back to the safety tracker.
About this data: Records come from the U.S. Department of Labor's OSHA enforcement datasets (inspection, violation, accident and accident injury tables), which carry Cal/OSHA's state-plan inspections alongside federal ones. We load every inspection of a California worksite opened since January 1, 2000 and refresh it weekly. Employer names, addresses and industry codes are as the inspecting office recorded them; similar names are grouped where they clearly refer to the same employer. A citation can be reduced, vacated or withdrawn on appeal, and an inspection can stay open for months, so a record can change. Penalties shown as "current" reflect the latest status in the federal file. This page is public information about the employer's regulatory record, not legal advice and not a statement that any person was harmed or any law broken beyond what the record states.