Mining, Quarrying, Oil & Gas · Pearblossom, CA

Calmat CO DBA Vulcan Materials Company

According to OSHA enforcement records (2010–2026), Calmat CO DBA Vulcan Materials Company has a relatively clean safety record: 0 violations across 2 inspections. See the full breakdown below.

$0
OSHA penalties
0
Violations cited
2
OSHA inspections

Calmat CO DBA Vulcan Materials Company in Pearblossom, CA has been the subject of 2 OSHA workplace inspections and 0 citations since 2010, according to enforcement records from the U.S. Department of Labor. All enforcement data below is sourced from the DOL public enforcement databases at data.dol.gov.

The record in one line

OSHA has inspected Calmat CO DBA Vulcan Materials Company 2 times over 2 years, roughly annually. None of these inspections resulted in a citation. Against the Mining, Quarrying, Oil & Gas industry average of 2 inspections per employer, this sits roughly in line with peers (0.9x the sector average) on inspection frequency. For comparison, Quest Drilling in Kendall, KS is another mining, quarrying, oil & gas employer with 2 OSHA inspections on record and $0 in current penalties.

0.0
violations per inspection
0.0%
of violations were serious

Compliance score

A 90/100
  • A OSHA safety compliance: 0 violations across 2 OSHA inspections (0.0 per inspection), vs. national p10 0.0 (best) / p90 5.5 (worst) among 145,626 inspected employers.

Channels are separate federal datasets: a dimension marked not applicable simply has no record in that dataset for this employer, not a good or bad score.

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Does more inspection scrutiny mean more findings?

Each dot is one of 21 Mining, Quarrying, Oil & Gas employers with an OSHA inspection on record, placed by inspections and violations cited. The highlighted dot is Calmat CO DBA Vulcan Materials Company.

Frequently inspected, many findingsRarely inspected, many findingsFrequently inspected, clean recordBelow median on both1.92.022.02.002.65.37.910.5OSHA inspectionsViolations citedMURFIN DRILLING CO. INC., OSHA inspections: 2 · Violations cited: 3ENSIGN US SOUTHERN DRILLING LLC, OSHA inspections: 2 · Violations cited: 4WESTERN WELL SERVICE, LLC., OSHA inspections: 2 · Violations cited: 4FOSSIL DRILLING, INC., OSHA inspections: 2 · Violations cited: 5UNIT DRILLING COMPANY, OSHA inspections: 2 · Violations cited: 1HESS CORPORATION, OSHA inspections: 2 · Violations cited: 0ABRAXAS PETROLEUM CORPORATION, OSHA inspections: 2 · Violations cited: 0MDC ENERGY, LLC, OSHA inspections: 2 · Violations cited: 0DEVON ENERGY CORPORATION, OSHA inspections: 2 · Violations cited: 0COG OPERATING, LLC, OSHA inspections: 2 · Violations cited: 0DESTA DRILLING CO., OSHA inspections: 2 · Violations cited: 6HELMERICH & PAYNE INTERNATIONAL DRILLING CO., OSHA inspections: 2 · Violations cited: 10NATIONAL OILWELL DHT, L.P., OSHA inspections: 2 · Violations cited: 1HORIZON ENERGY SERVICES, LLC, OSHA inspections: 2 · Violations cited: 4ENTERPRISE HYDROCARBONS L.P., OSHA inspections: 2 · Violations cited: 2MURFIN DRILLING COMPANY, INC., OSHA inspections: 2 · Violations cited: 0PALM BEACH AGGREGATES, OSHA inspections: 2 · Violations cited: 0CLAYTON WILLIAMS ENERGY INC., OSHA inspections: 2 · Violations cited: 0RINKER MATERIALS CORPORATION, OSHA inspections: 2 · Violations cited: 4COMPLETE ENERGY SERVICES, INC., OSHA inspections: 2 · Violations cited: 7Calmat CO DBA Vulcan Materials Company, OSHA inspections: 2 · Violations cited: 0
Calmat CO DBA Vulcan Materials Company has 2 OSHA inspections on record and 0 violations cited. The crosshair marks the median among these Mining, Quarrying, Oil & Gas peers. Across this sector's tracked employers, more inspections is moderately associated with more violations found -- not a coincidence, but not a guarantee either.

How Calmat CO DBA Vulcan Materials Company Compares

2 OSHA inspections on record for Calmat CO DBA Vulcan Materials Company in Pearblossom, CA, zero violations cited, a cleaner record than the Mining, Quarrying, Oil & Gas sector average of 3.1 violations per employer.

No OSHA penalty has been assessed against Calmat CO DBA Vulcan Materials Company to date. The Mining, Quarrying, Oil & Gas sector average runs $4,539 per employer.

Enforcement detail

OSHA Inspection History

Total Inspections

2

First Inspection

2012-10-05

Last Inspection

2014-04-25

Inspection Span

2 yrs

Violations / Inspection

0.0

Avg Penalty / Inspection

$0

Industry Avg / Inspection

$2,042

What this shows 2 inspections over 2 years, averaging 0.0 violations per visit. That's $0 per inspection vs. the Mining, Quarrying, Oil & Gas average of $2,042.

Industry Safety Context: Mining, Quarrying, Oil & Gas

How Calmat CO DBA Vulcan Materials Company compares to the Mining, Quarrying, Oil & Gas sector, which has 2,294 employers tracked by PlainWorker.

Metric Calmat CO DBA Vulcan Materials Company Industry Avg
Inspections 2 2.2
Violations 0 3.1
Total Penalty $0 $4,539
Avg Penalty per Inspection $0 $2,042

Nationwide Mining, Quarrying, Oil & Gas peers with similar penalties or inspection counts

Two OSHA-record peer sets for Calmat CO DBA Vulcan Materials Company, both outside CA so the neighborhoods are not geographic containment.

Nearby & Similar Employers in Mining, Quarrying, Oil & Gas

Showing 5 of 2293 other employers tracked in this sector.

Compare Calmat CO DBA Vulcan Materials Company vs Quest Drilling side-by-side →

What to do with this record

Use Calmat CO DBA Vulcan Materials Company's enforcement history as one data point, not the whole picture.

  • A single employer's record can look unusual in isolation. Compare Calmat CO DBA Vulcan Materials Company against Quest Drilling, a similarly-sized employer in the same sector, before drawing conclusions. Compare side-by-side
  • See whether Calmat CO DBA Vulcan Materials Company's inspection and penalty record is typical for Mining, Quarrying, Oil & Gas or an outlier against the sector's own average. View the Mining, Quarrying, Oil & Gas sector
  • Before you accept a job or raise a safety concern, search any employer for its own OSHA inspection history the same way you found this one. Search employers

Figures reflect closed OSHA and WHD federal enforcement actions on record (2010–2026); not every workplace issue results in an inspection or investigation.

Frequently Asked Questions

Is Calmat CO DBA Vulcan Materials Company safe to work at? ▼
Based on OSHA records, Calmat CO DBA Vulcan Materials Company's workplace safety record is relatively clean, with fewer violations than typical. The employer has 0 violations across 2 inspections. Compared to Mining, Quarrying, Oil & Gas industry peers, this is below average for penalties. Review the full inspection history below for details.
How many OSHA violations does Calmat CO DBA Vulcan Materials Company have? ▼
Calmat CO DBA Vulcan Materials Company has 0 OSHA violations on record, including 0 serious, 0 willful, and 0 repeat violations. The total current penalty amount is $0.
How many OSHA inspections has Calmat CO DBA Vulcan Materials Company had? ▼
Calmat CO DBA Vulcan Materials Company has had 2 OSHA inspections, with the first recorded on 2012-10-05 and the most recent on 2014-04-25. This averages 0.0 violations per inspection.
What is the total penalty amount for Calmat CO DBA Vulcan Materials Company? ▼
Calmat CO DBA Vulcan Materials Company has been assessed $0 in current OSHA penalties.
What industry does Calmat CO DBA Vulcan Materials Company operate in? ▼
Calmat CO DBA Vulcan Materials Company operates in the Mining, Quarrying, Oil & Gas sector (NAICS code 212321). This industry has 2,294 employers tracked by PlainWorker, with 5,098 total OSHA inspections and $10.41M in cumulative penalties.
How does Calmat CO DBA Vulcan Materials Company's safety record compare to industry average? ▼
Calmat CO DBA Vulcan Materials Company's total OSHA penalty of $0 is below the Mining, Quarrying, Oil & Gas industry average of $4,539 per employer. The employer has 2 inspections compared to the industry average of 2.2 per employer. For a direct comparison, Quest Drilling in Kendall, KS is a similar mining, quarrying, oil & gas employer with $0 in current penalties.
Data Sources & Methodology ▼

Data as of 2026. Source: U.S. Department of Labor (OSHA, WHD).

Source: OSHA Enforcement Data

Inspection and violation records from the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor, covering the period 2010–2026. Includes inspection dates, violation types (serious, willful, repeat, other-than-serious), and penalty amounts. Penalties shown are current assessed amounts and may differ from original citations due to settlement, contest, or reduction.

Source: Wage and Hour Division (WHD)

Compliance actions from the WHD, covering enforcement of the Fair Labor Standards Act (FLSA), including minimum wage, overtime, and child labor violations. Back wages represent amounts owed to affected employees as determined by WHD investigations.

Employer Matching

Employers are matched across OSHA and WHD datasets by name, state, and city. Employers included in PlainWorker have 2 or more OSHA inspections or $1,000+ in WHD back wages. Data is updated monthly from data.dol.gov.

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Every figure on PlainWorker is rendered directly from official U.S. Department of Labor OSHA and Wage & Hour Division enforcement records, no number is typed in by an editor. This employer's ratios (penalty-per-violation, industry comparisons) are computed live from the 2 inspections on record. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.