Skip to main content

Establishment profile

MRC ROCK & SAND, LLC

10618 MOJAVE-TROPICO RD, MOJAVE, CA, 93501
212321Construction Sand and Gravel Mining

Download as PDF →

OSHA inspections
3
over 2 years
Violations
6
$1,590 in penalties
Penalties
$1,590
$265 avg
Violations across 2 federal agencies
Enforcement actions from multiple agencies may indicate systemic compliance issues across functions.

Summary

MRC ROCK & SAND, LLC has accumulated 6 OSHA violations across 3 inspections over 2 years of recorded history, with $1,590 in total assessed penalties.

The establishment sits in the 76th percentile for violations within its industry-state peer group of 1,680 employers. Inspection frequency runs at the 54th percentile. The most recent enforcement activity was recorded 3 months ago.

Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.

Agency coverage

MRC ROCK & SAND, LLC appears in OSHA workplace safety and MSHA mine safety records only. No matching records were found in WHD wage enforcement, EPA environmental compliance, NLRB labor relations, OFLC visa and labor certification (historical), FMCSA motor carrier registration, SAM.gov federal debarment, CMS nursing home enforcement, UVA Corporate Prosecution Registry, CPSC product recalls, or NHTSA vehicle recalls.

OSHA workplace safety

Inspections
3
1.5 / yr · last 2 yrs
Violations
6
3.0 / yr
Penalties
$1,590
$265 avg / violation
Inspection trigger · planned
3 of 3

67% of inspections at this establishment produced violations,

Most-cited OSHA standards

Top OSHA standards cited at this employer, ranked by citation count. Standards (CFR sections) cluster citations into safety themes -- machine guarding, lockout-tagout, hazard communication, fall protection, process safety, etc. A concentration on one or two sections reveals a pattern that individual citations don’t. 6 distinct standards shown · 6 citations in this view · $1,590 in penalties.

CFR sectionCitationsInspectionsTotal penaltyFirst citedLast cited
29 CFR 2812.0003 B0211$410Jan 2024Jan 2024
6968(B)11$410Jan 2024Jan 2024
3314(H)(2)(D)11$225Mar 2025Mar 2025
4650(D)11$205Jan 2024Jan 2024
4650(E)11$205Jan 2024Jan 2024
3277(D)(2)11$135Jan 2024Jan 2024

Source: OSHA inspection citations (violation_detail). CFR section codes can be looked up at osha.gov/laws-regs for the formal standard text. Per-inspection detail and the specific violation descriptions are available by expanding individual inspections below.

Peer comparison

76th

Above average violations in NAICS 2123 within CA. Peer group: 1,680 employers. This establishment has 6 OSHA violations; peer median is 2.

Fewer violationsMore violations
Penalty percentile
76th
peer median: $300
Inspection frequency
54th
peer median: 2

Safety self-report (OSHA 300A)

No self-reported injury rates filed with OSHA's Injury Tracking Application for MRC ROCK & SAND, LLC. Verify directly with OSHA Injury Tracking Application

Industry benchmark

Industry avg TRIR
1.5
BLS SOII 2024
Industry avg DART
1.0
BLS SOII 2024
Self-reported TRIR
Not in OSHA ITA

BLS rates reflect industry-wide averages. Self-reported figures come from OSHA’s Injury Tracking Application; absence of self-reported data does not necessarily indicate non-compliance — many establishments fall below the ITA reporting threshold.

Inspection breakdown

Planned
3

Complaint- and accident-triggered inspections are stronger risk signals than routine planned inspections.

OSHA severe injury reports

No severe injury reports (hospitalization, amputation, or loss of an eye) on file under 29 CFR 1904.39 for MRC ROCK & SAND, LLC. Verify directly with Occupational Safety and Health Administration

Activity timeline

Data refreshed
Weekly
First OSHA inspection
Most recent activity
3 months ago

Most recent federal enforcement activity recorded 3 months ago. Data on this page is refreshed weekly.

Wage & Hour Division (WHD)

No WHD wage, overtime, or child-labor enforcement cases on file for MRC ROCK & SAND, LLC. Verify directly with Wage and Hour Division

Mine safety (MSHA)

Company-level in CA — for MRC ROCK & SAND, LLC, not this location alone

Violations
117
Assessed penalties
$62,714

Mine Safety & Health Administration — citations issued at mining operations. MSHA records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other MRC ROCK & SAND, LLC operations in the same state.

MSHA citations

Mine Safety and Health Administration citations. S&S (significant and substantial) marks violations that could reasonably contribute to a serious injury. Negligence rating is MSHA’s operator-culpability assessment (none, low, moderate, high, or reckless disregard). Proposed = assessed at issuance; Paid = post-settlement / appeal. 100 citations · 42S&S · $60,779 proposed / $34,935 paid.

CitationMineDateSectionS&SNegligenceProposedPaid
9892772
Mojave Rock Mine
Kern, CA
Apr 2025NoModNegligence$12,403$755
9890494
Mojave Rock Mine
Kern, CA
Jan 2026YesHighNegligence$5,144
9684468
Limo Rock Remediation
Ventura, CA
May 2023YesModNegligence$4,483$905
9684462
Limo Rock Remediation
Ventura, CA
Apr 2023NoHighNegligence$3,006$607
9506391
Cucamonga Creek Mine
San Bernardino, CA
Sep 2021YesHighNegligence$2,493$2,493
9892715
Mojave Rock Mine
Kern, CA
Feb 2025YesLowNegligence$1,679$1,679
9681958
Mojave Rock Mine
Kern, CA
Oct 2023YesModNegligence$1,463$439
9506990
Limo Rock Remediation
Ventura, CA
Apr 2022YesHighNegligence$1,358$1,358
9506989
Limo Rock Remediation
Ventura, CA
Apr 2022YesHighNegligence$1,358$1,358
9506986
Limo Rock Remediation
Ventura, CA
Apr 2022YesHighNegligence$1,358$1,358
9506983
Limo Rock Remediation
Ventura, CA
Apr 2022YesHighNegligence$1,358$1,358
9506814
Mojave Rock Mine
Kern, CA
Oct 2021YesHighNegligence$1,179$1,179
9506813
Mojave Rock Mine
Kern, CA
Oct 2021YesHighNegligence$1,179$1,179
9506808
Mojave Rock Mine
Kern, CA
Oct 2021YesHighNegligence$1,179$1,179
9681964
Mojave Rock Mine
Kern, CA
Oct 2023YesLowNegligence$1,089$477
9375959
Limo Rock Remediation
Ventura, CA
Aug 2019YesHighNegligence$977$977
9684458
Limo Rock Remediation
Ventura, CA
Apr 2023YesModNegligence$905$905
9892771
Mojave Rock Mine
Kern, CA
Apr 2025YesLowNegligence$755$755
9892716
Mojave Rock Mine
Kern, CA
Feb 2025YesLowNegligence$755$755
9681819
Mojave Rock Mine
Kern, CA
Oct 2022YesLowNegligence$442$442
9681962
Mojave Rock Mine
Kern, CA
Oct 2023YesModNegligence$439$439
9681957
Mojave Rock Mine
Kern, CA
Oct 2023YesModNegligence$439$439
9509598
Mojave Rock Mine
Kern, CA
Aug 2024NoModNegligence$421$421
9506991
Limo Rock Remediation
Ventura, CA
Apr 2022YesHighNegligence$407$407
9506987
Limo Rock Remediation
Ventura, CA
Apr 2022YesHighNegligence$407$407
9892669
Cucamonga Creek Mine
San Bernardino, CA
Oct 2024YesModNegligence$388$388
9892039
Cucamonga Creek Mine
San Bernardino, CA
Mar 2024YesModNegligence$388$388
7954344
Limo Rock Remediation
Ventura, CA
Mar 2021YesModNegligence$383$383
9506811
Mojave Rock Mine
Kern, CA
Oct 2021YesHighNegligence$355$355
9375563
Mojave Rock Mine
Kern, CA
Apr 2021YesModNegligence$355$355
9892770
Mojave Rock Mine
Kern, CA
Apr 2025NoLowNegligence$336
9892769
Mojave Rock Mine
Kern, CA
Apr 2025NoLowNegligence$336$104
9892768
Mojave Rock Mine
Kern, CA
Apr 2025NoLowNegligence$336$336
9375502
Cucamonga Creek Mine
San Bernardino, CA
Dec 2020YesModNegligence$328$328
9432195
Mojave Rock Mine
Kern, CA
Oct 2019YesHighNegligence$293$293
9506988
Limo Rock Remediation
Ventura, CA
Apr 2022NoHighNegligence$273$273
9684460
Limo Rock Remediation
Ventura, CA
Apr 2023NoLowNegligence$271$271
9684457
Limo Rock Remediation
Ventura, CA
Apr 2023NoModNegligence$271$271
9681019
Cucamonga Creek Mine
San Bernardino, CA
Jan 2022NoHighNegligence$252$252
9681018
Cucamonga Creek Mine
San Bernardino, CA
Jan 2022NoHighNegligence$252$252
9892714
Mojave Rock Mine
Kern, CA
Feb 2025NoModNegligence$226$226
9375501
Cucamonga Creek Mine
San Bernardino, CA
Dec 2020NoHighNegligence$220$220
6398300
Cucamonga Creek Mine
San Bernardino, CA
Mar 2020NoHighNegligence$217$217
5165620
Mojave Rock Mine
Kern, CA
Apr 2026YesLowNegligence$209
9890496
Mojave Rock Mine
Kern, CA
Jan 2026NoModNegligence$209
5165445
Cucamonga Creek Mine
San Bernardino, CA
Jul 2025YesLowNegligence$209$209
9684063
Mojave Rock Mine
Kern, CA
May 2023YesModNegligence$198$198
9681822
Mojave Rock Mine
Kern, CA
Oct 2022NoModNegligence$198$198
9681733
Mojave Rock Mine
Kern, CA
Jun 2022YesLowNegligence$198$198
9375891
Cucamonga Creek Mine
San Bernardino, CA
Nov 2018NoHighNegligence$191$191
9375890
Cucamonga Creek Mine
San Bernardino, CA
Nov 2018NoHighNegligence$191$191
9506985
Limo Rock Remediation
Ventura, CA
Apr 2022YesModNegligence$183$183
9684470
Limo Rock Remediation
Ventura, CA
May 2023NoModNegligence$182$182
5166607
Ojai Quarry
Ventura, CA
Mar 2026NoModNegligence$168$168
9684463
Limo Rock Remediation
Ventura, CA
Apr 2023109(a)NoHighNegligence$167$167
9892666
Cucamonga Creek Mine
San Bernardino, CA
Oct 2024NoHighNegligence$164$164
5166606
Ojai Quarry
Ventura, CA
Mar 2026NoLowNegligence$151$151
9890497
Mojave Rock Mine
Kern, CA
Jan 2026NoLowNegligence$151
9890495
Mojave Rock Mine
Kern, CA
Jan 2026NoLowNegligence$151
9890493
Mojave Rock Mine
Kern, CA
Jan 2026NoLowNegligence$151
5165446
Cucamonga Creek Mine
San Bernardino, CA
Jul 2025NoModNegligence$151$151
5166605
Ojai Quarry
Ventura, CA
Jul 2025NoHighNegligence$151$151
5165447
Cucamonga Creek Mine
San Bernardino, CA
Jul 2025NoHighNegligence$151$151
9892717
Mojave Rock Mine
Kern, CA
Feb 2025NoModNegligence$151$151
9892668
Cucamonga Creek Mine
San Bernardino, CA
Oct 2024NoLowNegligence$147$147
9892667
Cucamonga Creek Mine
San Bernardino, CA
Oct 2024YesLowNegligence$147$147
9509597
Mojave Rock Mine
Kern, CA
Aug 2024NoLowNegligence$147$147
9892273
Ojai Quarry
Ventura, CA
Mar 2024NoModNegligence$147$147
9892386
Cucamonga Creek Mine
San Bernardino, CA
Jan 2024NoHighNegligence$147$147
9375574
Cucamonga Creek Mine
San Bernardino, CA
May 2021YesModNegligence$146$146
6398299
Cucamonga Creek Mine
San Bernardino, CA
Mar 2020YesLowNegligence$144$144
9681965
Mojave Rock Mine
Kern, CA
Oct 2023NoModNegligence$143$143
9681961
Mojave Rock Mine
Kern, CA
Oct 2023NoLowNegligence$143$143
9681960
Mojave Rock Mine
Kern, CA
Oct 2023NoModNegligence$143$143
9681959
Mojave Rock Mine
Kern, CA
Oct 2023NoLowNegligence$143$143
9681956
Mojave Rock Mine
Kern, CA
Oct 2023YesModNegligence$143$143
9681955
Mojave Rock Mine
Kern, CA
Oct 2023NoModNegligence$143$143
9681929
Mojave Rock Mine
Kern, CA
Oct 2023NoModNegligence$143$143
9684062
Mojave Rock Mine
Kern, CA
May 2023YesLowNegligence$143$143
9684469
Limo Rock Remediation
Ventura, CA
May 2023NoLowNegligence$143$143
9684461
Limo Rock Remediation
Ventura, CA
Apr 2023NoModNegligence$143$143
9684456
Limo Rock Remediation
Ventura, CA
Apr 2023NoLowNegligence$143$143
9375504
Cucamonga Creek Mine
San Bernardino, CA
Dec 2020NoHighNegligence$139$139
9681821
Mojave Rock Mine
Kern, CA
Oct 2022NoLowNegligence$133$133
9681820
Mojave Rock Mine
Kern, CA
Oct 2022NoLowNegligence$133$133
9681756
Cucamonga Creek Mine
San Bernardino, CA
Jul 2022NoHighNegligence$133$133
9681755
Cucamonga Creek Mine
San Bernardino, CA
Jul 2022NoModNegligence$133$133
9681732
Mojave Rock Mine
Kern, CA
Jun 2022NoHighNegligence$133$133
9506984
Limo Rock Remediation
Ventura, CA
Apr 2022NoModNegligence$133$133
9681757
Cucamonga Creek Mine
San Bernardino, CA
Jan 2022NoHighNegligence$133$133
9681020
Cucamonga Creek Mine
San Bernardino, CA
Jan 2022NoModNegligence$133$133
9506992
Limo Rock Remediation
Ventura, CA
Jan 2021NoLowNegligence$133$133
9375963
Limo Rock Remediation
Ventura, CA
Aug 2019YesModNegligence$132$132
9375960
Limo Rock Remediation
Ventura, CA
Aug 2019YesLowNegligence$132$132
9506812
Mojave Rock Mine
Kern, CA
Oct 2021NoHighNegligence$125$125
9506810
Mojave Rock Mine
Kern, CA
Oct 2021NoModNegligence$125$125
9506809
Mojave Rock Mine
Kern, CA
Oct 2021NoLowNegligence$125$125
9506392
Cucamonga Creek Mine
San Bernardino, CA
Sep 2021NoHighNegligence$125$125
9375575
Cucamonga Creek Mine
San Bernardino, CA
May 2021YesModNegligence$125$125
7954343
Limo Rock Remediation
Ventura, CA
Mar 2021NoModNegligence$125$125

Source: MSHA citation database. “Contractor” annotations indicate the cited party was on-site at the mine but not the mine’s operator -- responsibility attaches to the contractor LLC, not the mine’s owner. Section codes reference 30 CFR (the Mine Safety and Health regulations).

Labor relations (NLRB)

No NLRB unfair labor practice charges or union representation cases on file for MRC ROCK & SAND, LLC. Verify directly with National Labor Relations Board

Visa & labor certification (OFLC) — historical

No H-1B, H-2A, or H-2B labor condition applications on file (historical data only — DOL ended OFLC publication) for MRC ROCK & SAND, LLC. Verify directly with Office of Foreign Labor Certification

Environmental compliance (EPA)

No EPA inspections or formal enforcement actions on file for MRC ROCK & SAND, LLC. Verify directly with Environmental Protection Agency

EPA-registered facilities

Every EPA ECHO facility associated with this employer, sorted most-significant first. Each row links to EPA’s Detailed Facility Report for the source-of-truth record. Permits column lists active programs (Air = Clean Air Act, Water = Clean Water Act, RCRA = hazardous waste, TRI = Toxics Release Inventory reporting). 1 facility.

FacilityPermitsStatusInspectionsFormal actionsPenaltiesLast inspectedECHO
MRC ROCK & SAND
10618 MOJAVE-TROPICO RD · MOJAVE, CA, 93501
RCRANo Violation Identified00View →

Source: EPA ECHO (Enforcement and Compliance History Online). Compliance status follows EPA’s own labels (“Sig Violation” = significant noncompliance; QNCR = quarters of noncompliance over the recent reporting window). Inactive facilities (struck through) retain historical enforcement records even after operations ceased.

Federal criminal prosecution record

No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for MRC ROCK & SAND, LLC. Verify directly with UVA Corporate Prosecution Registry

Inspection history

DateTriggerViolationsSeriousPenalty
2026-02-26Planned0$0
2024-11-25Planned1$225
2023-11-15Planned5$1,365

Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.

In the news

Other employers in this industry and state

Other employers in construction sand and gravel mining within CA, ordered by federal enforcement volume:

Related searches

About this data

This profile aggregates federal enforcement records on MRC ROCK & SAND, LLC from every major federal compliance and enforcement source plus the UVA Corporate Prosecution Registry. OSHA workplace safety inspections, WHD wage cases, MSHA mine safety, EPA environmental enforcement, NLRB labor relations, OFLC visa/labor certification, FMCSA motor carrier registration, SAM.gov debarments, CMS nursing-home records, BLS industry safety benchmarks, OSHA ITA self-reported injury rates, SEC enforcement and financial disclosures, CPSC and NHTSA recalls.

Establishments are matched across agencies using normalized employer name, state, and ZIP code.

OSHA citations typically appear 3–8 months after the inspection, so very recent enforcement actions may not yet be reflected. Profiles may be incomplete if the establishment operates under multiple legal names or files under variations our entity-matching rules don’t yet cover. To report a missing record or correction, email corrections@fastdol.com.

Need API access, bulk download, or licensed redistribution? The website is free. Programmatic and licensed access is handled separately.

Contact sales →

Frequently asked

What is MRC ROCK & SAND, LLC's OSHA violation history?
MRC ROCK & SAND, LLC has 3 OSHA inspections on record with 6 violations and $1,590 in total penalties.
How does MRC ROCK & SAND, LLC's safety record compare to its industry?
MRC ROCK & SAND, LLC operates in the construction sand and gravel mining industry. The industry average Total Recordable Incident Rate (TRIR) is 1.5.