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Mining, Quarrying, Oil & Gas · Redlands, 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 ranks #43,105 of 99,447 penalized U.S. employers by total current penalty, with a concerning safety record: 14 violations across 7 inspections.

Upper half by penalty0% serious
$7,575
OSHA penalties
14
Violations cited
7
OSHA inspections
#43,105
of 99,447 penalized employers

Robertson's Ready Mix, LTD, a California Limited Partnership in Redlands, CA has been the subject of 7 OSHA workplace inspections and 14 citations since 2010, according to enforcement records from the U.S. Department of Labor. Total penalties assessed: $7,575. 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 7 times over 7 years, roughly annually. These inspections resulted in 14 violations, averaging 2.0 per inspection, above what's typical for a single visit. According to OSHA enforcement records, its total current penalty ranks #43,105 of 99,447 penalized U.S. employers (the upper half of penalized employers nationally). Against the Mining, Quarrying, Oil & Gas industry average of 2 inspections per employer, this runs well above peers (3.1x the sector average) on inspection frequency. For comparison, Mattlock Drilling in Rankin, TX is another mining, quarrying, oil & gas employer with 2 OSHA inspections on record and $7,623 in current penalties.

2.0
violations per inspection
0.0%
of violations were serious
#43,105
of 99,447 penalized employers

Compliance score

D 61/100
  • D OSHA safety compliance: 14 violations across 7 OSHA inspections (2.0 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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How this employer compares on OSHA penalties

Total current penalty vs the Mining, Quarrying, Oil & Gas per-employer average

in penalties

What this shows Robertson's Ready Mix, LTD, a California Limited Partnership runs moderately above peers (1.7x the sector average) in total OSHA penalties.

Source U.S. Department of Labor, OSHA enforcement extracts As of 2026

Where this penalty ranks nationally

Total current OSHA penalty vs every U.S. employer with a nonzero penalty

$7,575 Bottom 43% least affordable more affordable than 43% of 99,447 U.S. employers with a penalty

$0–$5,000: 43,959 U.S. employers with a penalty (44%). Below this entry. $5,000–$10,000: 20,304 U.S. employers with a penalty (20%). This entry sits in this band. $10,000–$15,000: 11,027 U.S. employers with a penalty (11%). Above this entry. $15,000–$20,000: 6,546 U.S. employers with a penalty (7%). Above this entry. $20,000–$25,000: 4,175 U.S. employers with a penalty (4%). Above this entry. $25,000–$30,000: 2,877 U.S. employers with a penalty (3%). Above this entry. $30,000–$35,000: 2,036 U.S. employers with a penalty (2%). Above this entry. $35,000–$40,000: 1,493 U.S. employers with a penalty (2%). Above this entry. $40,000–$45,000: 1,095 U.S. employers with a penalty (1%). Above this entry. $45,000–$50,000: 785 U.S. employers with a penalty (1%). Above this entry. $50,000–$55,000: 5,150 U.S. employers with a penalty (5%). Above this entry. This employer $0 $55,000 every penalized U.S. employer, bucketed by value

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

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 Robertson's Ready Mix, LTD, a California Limited Partnership.

Frequently inspected, many findingsRarely inspected, many findingsFrequently inspected, clean recordBelow median on both4.85.76.57.38.206.813.720.527.3OSHA inspectionsViolations citedSMITHBRIDGE GUAM, INC., OSHA inspections: 7 · Violations cited: 10BP EXPLORATION (ALAS…, OSHA inspections: 7 · Violations cited: 26PEAK OILFIELD SERVICES, OSHA inspections: 7 · Violations cited: 12NORAM DRILLING COMPANY, OSHA inspections: 7 · Violations cited: 10BIG OX ENERGY SIOUXL…, OSHA inspections: 7 · Violations cited: 19ENI PETROLEUM, OSHA inspections: 7 · Violations cited: 10HELMERICH & PAYNE IN…, OSHA inspections: 7 · Violations cited: 8WATERFLEET, LLC, OSHA inspections: 6 · Violations cited: 2TREND SERVICES INC., OSHA inspections: 6 · Violations cited: 7CACTUS DRILLING COMP…, OSHA inspections: 8 · Violations cited: 8TOP BRAND, INC., OSHA inspections: 6 · Violations cited: 25Shell Oil Products U…, OSHA inspections: 8 · Violations cited: 10PACIFIC INTERNATIONA…, OSHA inspections: 6 · Violations cited: 0PIONEER NATURAL RESO…, OSHA inspections: 6 · Violations cited: 5TANMAR RENTALS, LLC, OSHA inspections: 6 · Violations cited: 10EUREKA RESOURCES LLC, OSHA inspections: 6 · Violations cited: 18DOYON DRILLING INC, OSHA inspections: 6 · Violations cited: 7DOYON UNIVERSAL SERV…, OSHA inspections: 6 · Violations cited: 4ESS SUPPORT SERVICES, OSHA inspections: 5 · Violations cited: 5HELMERICH & PAYNE IN…, OSHA inspections: 5 · Violations cited: 9Robertson's Ready Mi…, OSHA inspections: 7 · Violations cited: 14
Robertson's Ready Mix, LTD, a California Limited Partnership has 7 OSHA inspections on record and 14 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.

Robertson's Ready Mix, LTD, a California Limited Partnership in the Mining, Quarrying, Oil & Gas enforcement ledger

Among 1,117 Mining, Quarrying, Oil & Gas employers with OSHA penalties on file, Robertson's Ready Mix, LTD, a California Limited Partnership ranks #363 at $7,575 current penalty.

How Robertson's Ready Mix, LTD, a California Limited Partnership Compares

Robertson's Ready Mix, LTD, a California Limited Partnership's 2.00 violations per inspection compares to the Mining, Quarrying, Oil & Gas sector average of 3.1 violations per employer.

Against the Mining, Quarrying, Oil & Gas industry average of $4,539 per employer, this employer's current OSHA penalty runs moderately above peers (1.7x the sector average).

Enforcement detail

OSHA Inspection History

Total Inspections

7

First Inspection

2016-02-29

Last Inspection

2023-08-01

Inspection Span

7 yrs

Violations / Inspection

2.0

Avg Penalty / Inspection

$1,082

Industry Avg / Inspection

$2,042

What this shows 7 inspections over 7 years, averaging 2.0 violations per visit. That's $1,082 per inspection vs. the Mining, Quarrying, Oil & Gas average of $2,042.

Enforcement detail

Violation Breakdown

0

Serious

0.0% of total

0

Willful

0.0% of total

3

Repeat

21.4% of total

11

Other-Than-Serious

78.6% 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

$7,575

Current Penalty Amount

$7,575

Penalty Reduction

None

What this shows No reduction on record. The current penalty matches the original OSHA assessment.

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 2,294 employers tracked by PlainWorker.

Metric Robertson's Ready Mix, LTD, a California Limited Partnership Industry Avg
Inspections 7 2.2
Violations 14 3.1
Total Penalty $7,575 $4,539
Avg Penalty per Inspection $1,082 $2,042
View all 2,294 employers in Mining, Quarrying, Oil & Gas →

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

Two OSHA-record peer sets for Robertson's Ready Mix, LTD, a California Limited Partnership, both outside CA so the neighborhoods are not geographic containment.

Similar current OSHA penalty

Nearest same-sector employers by current assessed penalty ($7,575 here).

Tanmar Companies, L.L.C. $7,574 TX Magna Energy Services, LLC $7,530 CO Mattlock Drilling $7,623 TX Cudd Pressure Control, INC. $7,500 OK

Similar OSHA inspection count

Same-sector employers with a comparable inspection history outside this state (7 inspections here).

Smithbridge Guam, INC. 7 insp. Tamuning, GU BP Exploration (Alaska) INC 7 insp. Prudhoe Bay, AK Peak Oilfield Services 7 insp. Pecos, TX Noram Drilling Company 7 insp. Pecos, TX

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

Showing 5 of 2293 other employers tracked in this sector.

Tanmar Companies, L.L.C.
Midland, TX
3 inspections $7,574
Superior Ready Mix Concrete LP
Indio, CA
9 inspections $7,585
Magna Energy Services, LLC
LA Salle, CO
3 inspections $7,530
Mattlock Drilling
Rankin, TX
2 inspections $7,623
Cudd Pressure Control, INC.
Elk City, OK
2 inspections $7,500

Compare Robertson's Ready Mix, LTD, a California Limited Partnership vs Tanmar Companies, L.L.C. side-by-side →

What to do with this record

Use Robertson's Ready Mix, LTD, a California Limited Partnership's enforcement history as one data point, not the whole picture.

  • A single employer's record can look unusual in isolation. Compare Robertson's Ready Mix, LTD, a California Limited Partnership against Tanmar Companies, L.L.C., a similarly-sized employer in the same sector, before drawing conclusions. Compare side-by-side
  • See whether Robertson's Ready Mix, LTD, a California Limited Partnership'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 Robertson's Ready Mix, LTD, a California Limited Partnership safe to work at? ▼
Based on OSHA records, Robertson's Ready Mix, LTD, a California Limited Partnership's workplace safety record is concerning, with multiple serious compliance issues. The employer has 14 violations across 7 inspections. Compared to Mining, Quarrying, Oil & Gas industry peers, this is above average for penalties. Review the full inspection history below for details.
How many OSHA violations does Robertson's Ready Mix, LTD, a California Limited Partnership have? ▼
Robertson's Ready Mix, LTD, a California Limited Partnership has 14 OSHA violations on record, including 0 serious, 0 willful, and 3 repeat violations. The total current penalty amount is $7,575.
How many OSHA inspections has Robertson's Ready Mix, LTD, a California Limited Partnership had? ▼
Robertson's Ready Mix, LTD, a California Limited Partnership has had 7 OSHA inspections, with the first recorded on 2016-02-29 and the most recent on 2023-08-01. This averages 2.0 violations per inspection.
What is the total penalty amount for Robertson's Ready Mix, LTD, a California Limited Partnership? ▼
Robertson's Ready Mix, LTD, a California Limited Partnership has been assessed $7,575 in current OSHA penalties.
Does Robertson's Ready Mix, LTD, a California Limited Partnership have any serious or willful violations? ▼
Yes. Robertson's Ready Mix, LTD, a California Limited Partnership has 0 serious violations, and 3 repeat violations. Serious violations involve hazards likely to cause death or serious physical harm. Willful violations indicate the employer intentionally or knowingly disregarded the law.
What industry does Robertson's Ready Mix, LTD, a California Limited Partnership operate in? ▼
Robertson's Ready Mix, LTD, a California Limited Partnership 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.
Where does Robertson's Ready Mix, LTD, a California Limited Partnership rank nationally on OSHA penalties? ▼
Among the 99,447 U.S. employers with a nonzero current OSHA penalty in PlainWorker's corpus, Robertson's Ready Mix, LTD, a California Limited Partnership ranks #43,105 (the upper half of penalized employers nationally). The ordinal is a live COUNT of employers with a lower total_current_penalty; see the methodology page for the exact derivation.
How does Robertson's Ready Mix, LTD, a California Limited Partnership's safety record compare to industry average? ▼
Robertson's Ready Mix, LTD, a California Limited Partnership's total OSHA penalty of $7,575 is above the Mining, Quarrying, Oil & Gas industry average of $4,539 per employer (1.7x the average). The employer has 7 inspections compared to the industry average of 2.2 per employer. For a direct comparison, Mattlock Drilling in Rankin, TX is a similar mining, quarrying, oil & gas employer with $7,623 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.

Verify with OSHA establishment search →

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 7 inspections on record. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.