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 concerning safety record: 11 violations across 2 inspections. See the full breakdown below.
- $4,020
- OSHA penalties
- 11
- Violations cited
- 2
- OSHA inspections
- #61,701
- of 100,495 penalized employers
Robertson's Ready Mix, LTD, a California Limited Partnership in Rialto, CA has been the subject of 2 OSHA workplace inspections and 11 citations since 2010, according to enforcement records from the U.S. Department of Labor. Total penalties assessed: $4,020. 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 1 year - more than twice a year on average. These inspections resulted in 11 violations, averaging 5.5 per inspection - a notably high rate. Its total OSHA penalty ranks in the lower half of penalized employers nationally. 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, Newpark Drilling Fluids in Pyote, TX is another mining, quarrying, oil & gas employer with 2 OSHA inspections on record and $4,000 in current penalties.
- 5.5
- violations per inspection
- 0.0%
- of violations were serious
- 39%
- of penalized employers rank lower
How this employer compares on OSHA penalties
Total current penalty vs the Mining, Quarrying, Oil & Gas per-employer average
- Robertson's Ready Mix,…
Robertson's Ready Mix, LTD, a California Limited Partnership
$4,020 in penalties
- Mining, Quarrying, Oil & Gas avg
Mining, Quarrying, Oil & Gas industry average (per employer)
$4,394 in penalties
What this shows Robertson's Ready Mix, LTD, a California Limited Partnership sits roughly in line with peers (0.9x the sector average) in total OSHA penalties.
Where this penalty ranks nationally
Total current OSHA penalty vs every U.S. employer with a nonzero penalty
$4,020 Top 39% most affordable more affordable than 61% of 100,495 U.S. employers with a penalty
Each bar is a $5K-wide band; taller bars hold more U.S. employers with a penalty. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Department of Labor, OSHA enforcement extracts · 2026
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 includes 2 OSHA inspections and 11 violations, translating to 5.50 violations per inspection. Of those violations, 0 (0.0%) were classified as serious, 0 (0.0%) as willful, and 0 (0.0%) as repeat.
OSHA assessed $5,395 in initial penalties against this employer, later adjusted to a current total of $4,020 - a 25.5% reduction. Average penalty per inspection works out to $2,010. Against the Mining, Quarrying, Oil & Gas industry average of $4,394 per employer, this record sits roughly in line with peers (0.9x the sector average).
Inspection activity spans from 2018-06-14 to 2019-02-25, a window of roughly 1 year.
Enforcement detail
OSHA Inspection History
Total Inspections
2
First Inspection
2018-06-14
Last Inspection
2019-02-25
Inspection Span
1 yr
Violations / Inspection
5.5
Avg Penalty / Inspection
$2,010
Industry Avg / Inspection
$2,034
What this shows 2 inspections over 1 year, averaging 5.5 violations per visit. That's $2,010 per inspection vs. the Mining, Quarrying, Oil & Gas average of $2,034.
Enforcement detail
Violation Breakdown
0
Serious
0.0% of total
0
Willful
0.0% of total
0
Repeat
0.0% of total
11
Other-Than-Serious
100.0% of total
What this shows Serious violations involve hazards that could cause death or serious physical harm. Willful violations indicate intentional or knowing disregard of the law. Repeat violations are for hazards previously cited within the past 5 years.
Enforcement detail
Penalty Analysis
Initial Penalty Assessed
$5,395
Current Penalty Amount
$4,020
Penalty Reduction
25.5%
What this shows Penalties were reduced by $1,375 from the initial assessment of $5,395. Reductions may result from informal settlements, formal contests, or negotiated agreements with OSHA.
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 | 11 | 3.1 |
| Total Penalty | $4,020 | $4,394 |
| Avg Penalty per Inspection | $2,010 | $2,034 |
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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
- Put this employer head-to-head with another on inspections, penalties, and back wages. Compare employers
- 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.