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Establishment profile

UNITED ROCK PRODUCTS CORPORATION

1245 E. ARROW HWY, IRWINDALE, CA, 91706
212321Construction Sand and Gravel Mining

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OSHA inspections
37
over 35 years
Violations
70
$33,085 in penalties
Penalties
$33,085
$473 avg
Violations across 3 federal agencies
Enforcement actions from multiple agencies may indicate systemic compliance issues across functions.
Accident investigations on record
1 fatality · 2 hospitalizations · 1 National Emphasis Program inspections · 2 OSHA follow-ups

Summary

UNITED ROCK PRODUCTS CORPORATION has accumulated 70 OSHA violations across 37 inspections over 35 years of recorded history, with $33,085 in total assessed penalties.

The establishment sits in the 100th percentile for violations within its industry-state peer group of 1,687 employers. Inspection frequency runs at the 100th percentile. The most recent enforcement activity was recorded 4 months ago.

Federal records were found in 3 of 15 sources. Sources without matching records returned empty for this establishment.

Agency coverage

UNITED ROCK PRODUCTS CORPORATION appears in OSHA workplace safety, MSHA mine safety, and NLRB labor relations records only. No matching records were found in WHD wage enforcement, EPA environmental compliance, 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
37
1.1 / yr · last 35 yrs
Violations
70
2.0 / yr
Penalties
$33,085
$473 avg / violation
3% serious97% other
Inspection trigger · planned
28 of 37
Inspection trigger · accident
7 of 37

59% of inspections at this establishment produced violations, with 2 inspections producing serious-or-greater 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. 20 distinct standards shown · 34 citations in this view · $27,520 in penalties.

CFR sectionCitationsInspectionsTotal penaltyFirst citedLast cited
3209 A55$1,760Sep 2003Apr 2008
29 CFR 2340.002344$790Mar 2005Jun 2007
7030(B)22$2,850Apr 2015Jul 2024
3314(G)(2)(A)22$1,035Apr 2015May 2017
7031 C22$575Jan 2007May 2009
461 A22$575Mar 2003May 2009
4002 A22$450Mar 2005Sep 2005
7030 B22$450Sep 2003Mar 2005
497322$340Jan 2007Jul 2024
3314 C11$9,000Nov 2005Nov 2005
3314(D)11$4,050Apr 2015Apr 2015
4070(A)11$2,025Nov 2022Nov 2022
7014 G11$1,500Jan 1997Jan 1997
5204(C)11$335Nov 2022Nov 2022
5204(F)(2)(A)11$335Nov 2022Nov 2022
4845(Q)11$335May 2016May 2016
461(A)11$325May 2017May 2017
7055 C11$310Mar 2003Mar 2003
3273(C)11$240May 2026May 2026
7046(B)11$240May 2026May 2026

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

100th

Worse on violations than nearly every other employer in NAICS 2123 within CA. Peer group: 1,687 employers. This establishment has 70 OSHA violations; peer median is 2.

Fewer violationsMore violations
Penalty percentile
98th
peer median: $300
Inspection frequency
100th
peer median: 2

Safety self-report (OSHA 300A)

No self-reported injury rates filed with OSHA's Injury Tracking Application for UNITED ROCK PRODUCTS CORPORATION. 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
28
Complaint
2
Accident
7

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 UNITED ROCK PRODUCTS CORPORATION. Verify directly with Occupational Safety and Health Administration

OSHA accident events

Accidents, fatalities, and catastrophes documented during OSHA inspections at this employer. Each entry links to the inspection that recorded it.

DateEventInjuriesHospitalizedFatalities
Oct 22, 2005UNCONSCIOUSNESS,HEART ATTACKFatality11
Sep 13, 2005WIRE ROPE,CAUGHT BY,MECH MAT HANDLING,ARM,ENTANGLED,WINCH11
Aug 20, 1996FRONT END LOADER,GUARDRAIL,EQUIPMENT OPERATOR,LOADING RAMP,DRIVER,BACK,FALL,LOADER,BACKING UP11

Source: OSHA accident investigations. Narratives are recorded by the inspecting officer and may be truncated.

Activity timeline

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

Most recent federal enforcement activity recorded 4 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 UNITED ROCK PRODUCTS CORPORATION. Verify directly with Wage and Hour Division

Mine safety (MSHA)

Company-level in CA — for UNITED ROCK PRODUCTS CORPORATION, not this location alone

Violations
436
Assessed penalties
$416,677

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 UNITED ROCK PRODUCTS CORPORATION 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 · 52S&S · $355,241 proposed / $234,026 paid.

CitationMineDateSectionS&SNegligenceProposedPaid
8567103
IRWINDALE PLANT
Los Angeles, CA
Aug 2010YesHighNegligence$33,400$11,403
8555211
IRWINDALE PLANT
Los Angeles, CA
Nov 2009YesHighNegligence$18,271$9,500
8555210
IRWINDALE PLANT
Los Angeles, CA
Nov 2009YesHighNegligence$18,271$14,000
8555209
IRWINDALE PLANT
Los Angeles, CA
Nov 2009NoLowNegligence$18,271$9,500
9500729
IRWINDALE PLANT
Los Angeles, CA
Feb 2020NoHighNegligence$16,343$3,666
8995051
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesHighNegligence$15,351$15,351
8995048
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesHighNegligence$15,351$15,351
7964550
IRWINDALE PLANT
Los Angeles, CA
Sep 2007YesHighNegligence$6,624$2,500
5165604
IRWINDALE PLANT
Los Angeles, CA
Feb 2026YesModNegligence$6,037
6485166
IRWINDALE PLANT
Los Angeles, CA
Aug 2009NoHighNegligence$5,961$5,655
9892622
IRWINDALE PLANT
Los Angeles, CA
Jul 2024NoModNegligence$5,884$1,189
9892085
IRWINDALE PLANT
Los Angeles, CA
Jul 2024YesModNegligence$5,884$1,773
9509154
IRWINDALE PLANT
Los Angeles, CA
Aug 2023NoModNegligence$5,699$155
8555207
IRWINDALE PLANT
Los Angeles, CA
Nov 2009NoModNegligence$5,503$4,500
8995797
IRWINDALE PLANT
Los Angeles, CA
Feb 2018NoHighNegligence$4,717$1,429
8995796
IRWINDALE PLANT
Los Angeles, CA
Feb 2018YesHighNegligence$4,717$4,717
8995060
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesModNegligence$4,623$4,623
8995052
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesHighNegligence$4,623$4,623
8995047
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesHighNegligence$4,623$4,623
8995044
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesHighNegligence$4,623$4,623
8995043
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesHighNegligence$4,623$4,623
8995041
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesModNegligence$4,623$4,623
8781633
IRWINDALE PLANT
Los Angeles, CA
Apr 2014NoHighNegligence$3,996$2,800
8781632
IRWINDALE PLANT
Los Angeles, CA
Apr 2014NoHighNegligence$3,996$2,800
8607794
IRWINDALE PLANT
Los Angeles, CA
Sep 2012NoModNegligence$3,996$807
8613726
IRWINDALE PLANT
Los Angeles, CA
Feb 2012NoModNegligence$3,996$2,700
8567104
IRWINDALE PLANT
Los Angeles, CA
Aug 2010YesHighNegligence$3,996$3,596
6485161
IRWINDALE PLANT
Los Angeles, CA
Aug 2009NoModNegligence$3,996$1,575
6485160
IRWINDALE PLANT
Los Angeles, CA
Aug 2009NoModNegligence$3,996$3,000
6485159
IRWINDALE PLANT
Los Angeles, CA
Aug 2009YesModNegligence$3,996$3,000
6485157
IRWINDALE PLANT
Los Angeles, CA
Aug 2009YesHighNegligence$3,996$3,996
6485155
IRWINDALE PLANT
Los Angeles, CA
Aug 2009YesModNegligence$3,996$3,000
6485154
IRWINDALE PLANT
Los Angeles, CA
Aug 2009YesModNegligence$3,996$3,000
5166422
IRWINDALE PLANT
Los Angeles, CA
Aug 2025NoLowNegligence$3,448$697
8555325
IRWINDALE PLANT
Los Angeles, CA
Jun 2010YesModNegligence$3,143$1,052
8555324
IRWINDALE PLANT
Los Angeles, CA
Jun 2010NoHighNegligence$3,143$2,321
9892625
IRWINDALE PLANT
Los Angeles, CA
Aug 2024NoModNegligence$2,862$577
5165603
IRWINDALE PLANT
Los Angeles, CA
Feb 2026YesModNegligence$2,712
9890651
IRWINDALE PLANT
Los Angeles, CA
Mar 2025NoLowNegligence$2,712$549
9432189
IRWINDALE PLANT
Los Angeles, CA
Sep 2019NoHighNegligence$2,550$2,550
7980030
IRWINDALE PLANT
Los Angeles, CA
Jan 2009YesHighNegligence$2,473$2,473
9500727
IRWINDALE PLANT
Los Angeles, CA
Feb 2020YesLowNegligence$2,211$2,211
9432184
IRWINDALE PLANT
Los Angeles, CA
Sep 2019YesModNegligence$2,172$2,172
8995059
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesModNegligence$2,077$2,077
8995037
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesModNegligence$2,077$2,077
9892550
IRWINDALE PLANT
Los Angeles, CA
Mar 2025YesModNegligence$1,818$1,818
9890652
IRWINDALE PLANT
Los Angeles, CA
Mar 2025YesModNegligence$1,818$1,818
8613723
IRWINDALE PLANT
Los Angeles, CA
Feb 2012YesLowNegligence$1,795$1,500
8613722
IRWINDALE PLANT
Los Angeles, CA
Feb 2012YesLowNegligence$1,795$1,500
9892621
IRWINDALE PLANT
Los Angeles, CA
Jul 2024YesModNegligence$1,773$1,773
9892619
IRWINDALE PLANT
Los Angeles, CA
Jul 2024YesModNegligence$1,773$1,773
9509150
IRWINDALE PLANT
Los Angeles, CA
Aug 2023NoModNegligence$1,717$143
7980027
IRWINDALE PLANT
Los Angeles, CA
Jan 2009YesHighNegligence$1,657$1,657
8874163
IRWINDALE PLANT
Los Angeles, CA
Nov 2016NoModNegligence$1,633$1,633
8874160
IRWINDALE PLANT
Los Angeles, CA
Nov 2016YesModNegligence$1,607$1,607
7964552
IRWINDALE PLANT
Los Angeles, CA
Sep 2007NoHighNegligence$1,530$800
8995784
IRWINDALE PLANT
Los Angeles, CA
Feb 2018YesModNegligence$1,421$1,421
8995783
IRWINDALE PLANT
Los Angeles, CA
Feb 2018YesModNegligence$1,421$1,421
8995782
IRWINDALE PLANT
Los Angeles, CA
Feb 2018YesModNegligence$1,421$1,421
8995781
IRWINDALE PLANT
Los Angeles, CA
Feb 2018YesModNegligence$1,421$1,421
6364673
IRWINDALE PLANT
Los Angeles, CA
Sep 2004YesHighNegligence$1,402$1,402
9892091
IRWINDALE PLANT
Los Angeles, CA
Aug 2024NoModNegligence$1,395$437
9892090
IRWINDALE PLANT
Los Angeles, CA
Aug 2024NoModNegligence$1,395$437
8995049
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesModNegligence$1,392$1,392
8995040
IRWINDALE PLANT
Los Angeles, CA
Jul 2017YesModNegligence$1,392$1,392
9375342
IRWINDALE PLANT
Los Angeles, CA
Nov 2018NoModNegligence$1,312$1,312
9432408
IRWINDALE PLANT
Los Angeles, CA
Aug 2018NoModNegligence$1,312$1,312
6364795
IRWINDALE PLANT
Los Angeles, CA
Mar 2005YesModNegligence$1,238$1,238
9892553
IRWINDALE PLANT
Los Angeles, CA
Mar 2025NoModNegligence$1,219$1,219
9892552
IRWINDALE PLANT
Los Angeles, CA
Mar 2025NoModNegligence$1,219$1,219
9892548
IRWINDALE PLANT
Los Angeles, CA
Mar 2025NoModNegligence$1,219$1,219
9892545
IRWINDALE PLANT
Los Angeles, CA
Mar 2025NoModNegligence$1,219$1,219
8689778
IRWINDALE PLANT
Los Angeles, CA
Nov 2013NoModNegligence$1,203$900
6361388
IRWINDALE PLANT
Los Angeles, CA
Jul 2004YesHighNegligence$1,096$1,096
9681296
IRWINDALE PLANT
Los Angeles, CA
Aug 2022NoHighNegligence$1,069$215
6431227
IRWINDALE PLANT
Los Angeles, CA
Dec 2007YesModNegligence$1,026$821
7964553
IRWINDALE PLANT
Los Angeles, CA
Sep 2007NoHighNegligence$1,026$230
6380126
IRWINDALE PLANT
Los Angeles, CA
Sep 2005YesModNegligence$963$963
9432409
IRWINDALE PLANT
Los Angeles, CA
Aug 2018NoModNegligence$953$953
9432407
IRWINDALE PLANT
Los Angeles, CA
Aug 2018NoModNegligence$953$953
9432406
IRWINDALE PLANT
Los Angeles, CA
Aug 2018NoHighNegligence$953$953
8995790
IRWINDALE PLANT
Los Angeles, CA
Feb 2018NoModNegligence$953$953
8995789
IRWINDALE PLANT
Los Angeles, CA
Feb 2018NoModNegligence$953$953
8555327
IRWINDALE PLANT
Los Angeles, CA
Jun 2010NoModNegligence$946$800
8555331
IRWINDALE PLANT
Los Angeles, CA
Jun 2010NoModNegligence$946$800
8555319
IRWINDALE PLANT
Los Angeles, CA
Jun 2010NoModNegligence$946$800
8995057
IRWINDALE PLANT
Los Angeles, CA
Jul 2017NoLowNegligence$934$467
8995056
IRWINDALE PLANT
Los Angeles, CA
Jul 2017NoModNegligence$934$934
8995042
IRWINDALE PLANT
Los Angeles, CA
Jul 2017NoHighNegligence$934$934
7980025
IRWINDALE PLANT
Los Angeles, CA
Dec 2008YesModNegligence$873$873
9892549
IRWINDALE PLANT
Los Angeles, CA
Mar 2025YesLowNegligence$818$818
8788119
IRWINDALE PLANT
Los Angeles, CA
Feb 2016YesModNegligence$807$243
8698141
IRWINDALE PLANT
Los Angeles, CA
May 2013NoModNegligence$807$807
8613724
IRWINDALE PLANT
Los Angeles, CA
Feb 2012NoLowNegligence$807$752
6485156
IRWINDALE PLANT
Los Angeles, CA
Aug 2009NoHighNegligence$807$807
8995800
IRWINDALE PLANT
Los Angeles, CA
Feb 2018NoModNegligence$749$749
7980029
IRWINDALE PLANT
Los Angeles, CA
Jan 2009YesModNegligence$745$745
6361389
IRWINDALE PLANT
Los Angeles, CA
Jul 2004YesHighNegligence$723$723
6361387
IRWINDALE PLANT
Los Angeles, CA
Jul 2004YesHighNegligence$723$723
8874161
IRWINDALE PLANT
Los Angeles, CA
Nov 2016NoModNegligence$722$100

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)

Company-level in CA — for UNITED ROCK PRODUCTS CORPORATION, not this location alone

Total cases
2
Unfair labor practice
1
Representation (union)
1

National Labor Relations Board — unfair labor practice charges and union representation cases. The NLRB records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other UNITED ROCK PRODUCTS CORPORATION locations in the same state.

NLRB cases

National Labor Relations Board cases involving this employer. Includes unfair labor practice (ULP) filings and representation election proceedings. NLRB enforcement is process-driven; no per-case monetary penalty is assessed (remedies are case-by-case backpay orders, posting requirements, election re-runs, etc.). 2 cases · 1 ULP · 1 representation

Case numberTypeFiledClosedStatusRegion
21-RC-021019Representation electionFeb 2008Apr 2008ClosedRegion 21, Los Angeles, California
21-CA-034508Unfair labor practiceApr 2001Aug 2001ClosedRegion 21, Los Angeles, California

Source: NLRB case files. Rows shown are those the agency has published. Region numbers (1–31) correspond to NLRB's geographic offices.

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 UNITED ROCK PRODUCTS CORPORATION. Verify directly with Office of Foreign Labor Certification

Environmental compliance (EPA)

No EPA inspections or formal enforcement actions on file for UNITED ROCK PRODUCTS CORPORATION. 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). 2 facilities.

FacilityPermitsStatusInspectionsFormal actionsPenaltiesLast inspectedECHO
UNITED ROCK PRODUCTS
4407 AZUSA CANYON RD · BALDWIN PARK, CA, 91706
RCRANo Violation Identified00View →
UNITED ROCK PRODUCTS
1245 ARROW HWY · IRWINDALE, CA, 91706
WaterRCRANo 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 UNITED ROCK PRODUCTS CORPORATION. Verify directly with UVA Corporate Prosecution Registry

Inspection history

DateTriggerViolationsSeriousPenalty
2026-03-04Planned2$480
2024-12-04Planned0$0
2024-03-07Planned3$475
2022-08-01Planned111$3,820
2019-07-26Complaint0$0
2019-05-22Planned2$410
2017-01-27Planned3$1,375
2015-12-03Accident2$485
2015-08-18Planned2$375
2015-02-05Planned5$7,425
2014-03-10Planned3$405
2012-07-12Planned0$0
2012-04-17Planned0$0
2011-11-03Planned0$0
2010-12-01Planned0$0
2009-04-30Planned2$635
2008-03-12Planned4$540
2007-06-08Planned1$160
2006-11-16Planned4$1,205
2005-10-22Accident0$0
2005-09-20Accident41$10,200
2005-07-28Planned4$780
2005-01-13Planned6$1,230
2004-09-15Planned0$0
2003-08-14Planned3$550
2002-12-12Planned2$585
2002-03-27Planned2$300
2001-02-15Planned1$150
1997-08-21Accident0$0
1996-08-22Accident1$1,500
1996-03-20Accident0$0
1994-12-13Planned0$0
1993-01-25Complaint0$0
1992-09-16Planned0$0
1991-11-20Planned0$0
1991-08-22Accident3$0
1990-09-19Planned0$0

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 UNITED ROCK PRODUCTS CORPORATION 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.

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Frequently asked

What is UNITED ROCK PRODUCTS CORPORATION's OSHA violation history?
UNITED ROCK PRODUCTS CORPORATION has 37 OSHA inspections on record with 70 violations and $33,085 in total penalties.
How does UNITED ROCK PRODUCTS CORPORATION's safety record compare to its industry?
UNITED ROCK PRODUCTS CORPORATION operates in the construction sand and gravel mining industry. The industry average Total Recordable Incident Rate (TRIR) is 1.5.
Has UNITED ROCK PRODUCTS CORPORATION had any workplace fatalities?
Yes. Federal records show 1 fatality investigation involving UNITED ROCK PRODUCTS CORPORATION.