Mining, Quarrying, Oil & Gas · Rialto, CA
Robertson's Ready Mix LTD a California Limited Partnership
According to OSHA enforcement records (2010–2026), Robertson's Ready Mix LTD a California Limited Partnership 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
Robertson's Ready Mix LTD a California Limited Partnership in Rialto, 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 Robertson's Ready Mix LTD a California Limited Partnership 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, Sand Materials & Aggregate Sales, INC. in Palmdale, CA 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
What the Data Says About Robertson's Ready Mix LTD a California Limited Partnership
The federal enforcement record for Robertson's Ready Mix LTD a California Limited Partnership in Rialto, CA shows 2 OSHA inspections with 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 Robertson's Ready Mix LTD a California Limited Partnership to date. The Mining, Quarrying, Oil & Gas sector average runs $4,394 per employer.
Inspection activity spans from 2020-01-10 to 2021-12-09, a window of roughly 2 years.
Enforcement detail
OSHA Inspection History
Total Inspections
2
First Inspection
2020-01-10
Last Inspection
2021-12-09
Inspection Span
2 yrs
Violations / Inspection
0.0
Avg Penalty / Inspection
$0
Industry Avg / Inspection
$2,034
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 $2,034.
Industry Safety Context: Mining, Quarrying, Oil & Gas
How Robertson's Ready Mix LTD a California Limited Partnership compares to the Mining, Quarrying, Oil & Gas sector, which has 2,359 employers tracked by PlainWorker.
| Metric | Robertson's Ready Mix LTD a California Limited Partnership | Industry Avg |
|---|---|---|
| Inspections | 2 | 2.2 |
| Violations | 0 | 3.1 |
| Total Penalty | $0 | $4,394 |
| Avg Penalty per Inspection | $0 | $2,034 |
Nearby & Similar Employers in Mining, Quarrying, Oil & Gas
Frequently Asked Questions
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What to check next
Robertson's Ready Mix LTD a California Limited Partnership's record is one establishment in a larger pattern. Use it as a research checklist, not a verdict on the employer overall.
- See how Robertson's Ready Mix LTD a California Limited Partnership compares to the 2,359 other employers in Mining, Quarrying, Oil & Gas. Mining, Quarrying, Oil & Gas record
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- Review the full OSHA & wage-enforcement picture for CA. CA state record
These figures are the federal enforcement record on file and reflect past inspections, not a statement about current workplace conditions. See the disclaimer for how to read them.
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.