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Establishment profile

TRIANGLE ROCK PRODUCTS, INC.

22101 W. SUNSET AVE., LOS BANOS, CA, 93635
Operated by Vulcan Materials CO · 1 of 303 establishments
212321Construction Sand and Gravel Mining

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OSHA inspections
16
over 27 years
Violations
18
$1,250 in penalties
Penalties
$1,250
$69 avg
Violations across 2 federal agencies
Enforcement actions from multiple agencies may indicate systemic compliance issues across functions.
Accident investigations on record
1 OSHA follow-up

Summary

TRIANGLE ROCK PRODUCTS, INC. has accumulated 18 OSHA violations across 16 inspections over 27 years of recorded history, with $1,250 in total assessed penalties.

The establishment sits in the 95th percentile for violations within its industry-state peer group of 1,681 employers. Inspection frequency runs at the 95th percentile. The most recent enforcement activity was recorded 7 years ago.

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

Agency coverage

TRIANGLE ROCK PRODUCTS, INC. 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
16
0.6 / yr · last 27 yrs
Violations
18
0.7 / yr
Penalties
$1,250
$69 avg / violation
Inspection trigger · planned
15 of 16
Inspection trigger · follow-up
1 of 16

63% 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. 15 distinct standards shown · 18 citations in this view · $1,250 in penalties.

CFR sectionCitationsInspectionsTotal penaltyFirst citedLast cited
7046 D22$225Jun 2003Aug 2006
704022$110Aug 2000Jan 2002
7046 F22Nov 2008Jun 2010
3234 G0111$225Jun 2011Jun 2011
450 A0111$225Jul 2004Jul 2004
6973 A11$165Aug 2006Aug 2006
7030 B11$150Jun 2003Jun 2003
5162 D11$150Aug 2000Aug 2000
3942 B11Jun 2011Jun 2011
7055 B11Jun 2011Jun 2011
470 D11Sep 2007Sep 2007
1596 G0411Sep 2007Sep 2007
3203 A0411Jul 2004Jul 2004
461 A11Jan 2002Jan 2002
4050 A11Mar 1999Mar 1999

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

95th

Worse on violations than nearly every other employer in NAICS 2123 within CA. Peer group: 1,681 employers. This establishment has 18 OSHA violations; peer median is 2.

Fewer violationsMore violations
Penalty percentile
72nd
peer median: $300
Inspection frequency
95th
peer median: 2

Safety self-report (OSHA 300A)

No self-reported injury rates filed with OSHA's Injury Tracking Application for TRIANGLE ROCK PRODUCTS, INC.. 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
15
Follow-up
1

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 TRIANGLE ROCK PRODUCTS, INC.. Verify directly with Occupational Safety and Health Administration

Activity timeline

Data refreshed
Weekly
First OSHA inspection
Most recent activity
7 years ago

No federal enforcement activity has been recorded against this establishment in 7+ years. Most recent activity: 7 years ago. Data on this page is refreshed weekly.

Wage & Hour Division (WHD)

No WHD wage, overtime, or child-labor enforcement cases on file for TRIANGLE ROCK PRODUCTS, INC.. Verify directly with Wage and Hour Division

Mine safety (MSHA)

Company-level in CA — for Vulcan Materials CO, not this location alone

Violations
124
Assessed penalties
$19,903

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 Vulcan Materials CO 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 · 18S&S · $17,703 proposed / $17,653 paid.

CitationMineDateSectionS&SNegligenceProposedPaid
8873836
TRP-Sacramento Plant
Sacramento, CA
Sep 2015YesHighNegligence$2,300$2,300
9535624
TRP Table Mountain Plant
Butte, CA
Aug 2022YesModNegligence$840$840
6443185
TRP-Los Banos Plant
Merced, CA
Jan 2009YesModNegligence$745$745
6486965
TRP-Sacramento Plant
Sacramento, CA
Nov 2009YesModNegligence$687$687
6345458
TRP Table Mountain Plant
Butte, CA
Jun 2013YesModNegligence$634$634
8695864
TRP Table Mountain Plant
Butte, CA
Oct 2012NoLowNegligence$425$375
6345568
TRP Table Mountain Plant
Butte, CA
Jan 2014YesModNegligence$308$308
8879350
TRP Table Mountain Plant
Butte, CA
Apr 2016YesLowNegligence$285$285
8793915
TRP-Sacramento Plant
Sacramento, CA
Aug 2016YesModNegligence$235$235
8793691
TRP-Los Banos Plant
Merced, CA
Apr 2015YesModNegligence$190$190
6481345
TRP-Sacramento Plant
Sacramento, CA
Aug 2013YesModNegligence$190$190
8603815
TRP Table Mountain Plant
Butte, CA
Mar 2011YesModNegligence$190$190
8703398
TRP-Los Banos Plant
Merced, CA
Jul 2014YesModNegligence$176$176
8703308
TRP-Los Banos Plant
Merced, CA
Dec 2013YesModNegligence$176$176
8603925
TRP-Los Banos Plant
Merced, CA
Nov 2011YesModNegligence$176$176
8561935
TRP-Los Banos Plant
Merced, CA
Dec 2010YesModNegligence$176$176
6432505
TRP Table Mountain Plant
Butte, CA
Apr 2008YesModNegligence$162$162
8991297
TRP-Sacramento Plant
Sacramento, CA
Jan 2017NoModNegligence$160$160
9890918
TRP-Los Banos Plant
Merced, CA
Nov 2025NoLowNegligence$151$151
9890917
TRP-Los Banos Plant
Merced, CA
Nov 2025NoModNegligence$151$151
5106061
TRP Table Mountain Plant
Butte, CA
Oct 2025NoLowNegligence$151$151
9680850
TRP-Sacramento Plant
Sacramento, CA
Oct 2025NoLowNegligence$151$151
9999573
TRP-Sacramento Plant
Sacramento, CA
Jul 2025NoLowNegligence$151$151
9680825
TRP-Sacramento Plant
Sacramento, CA
Jul 2025NoLowNegligence$151$151
9890200
TRP-Los Banos Plant
Merced, CA
Jun 2025NoModNegligence$151$151
9999572
TRP-Sacramento Plant
Sacramento, CA
Jan 2025NoLowNegligence$151$151
9990808
TRP-Los Banos Plant
Merced, CA
Dec 2024NoModNegligence$151$151
9372023
TRP Table Mountain Plant
Butte, CA
Mar 2017NoModNegligence$148$148
8912575
TRP-Sacramento Plant
Sacramento, CA
Nov 2024NoModNegligence$147$147
8912574
TRP-Sacramento Plant
Sacramento, CA
Nov 2024NoLowNegligence$147$147
8912573
TRP-Sacramento Plant
Sacramento, CA
Nov 2024NoLowNegligence$147$147
9619658
TRP-Sacramento Plant
Sacramento, CA
Jul 2023NoModNegligence$143$143
9619657
TRP-Sacramento Plant
Sacramento, CA
Jul 2023NoModNegligence$143$143
9619656
TRP-Sacramento Plant
Sacramento, CA
Jul 2023NoModNegligence$143$143
8702529
TRP-Sacramento Plant
Sacramento, CA
Oct 2013NoModNegligence$142$142
6486963
TRP-Sacramento Plant
Sacramento, CA
Nov 2009NoModNegligence$138$138
6484099
TRP-Sacramento Plant
Sacramento, CA
Jun 2009NoModNegligence$138$138
6484098
TRP-Sacramento Plant
Sacramento, CA
Jun 2009NoModNegligence$138$138
9509098
TRP-Sacramento Plant
Sacramento, CA
Jan 2022NoModNegligence$133$133
9509097
TRP-Sacramento Plant
Sacramento, CA
Jan 2022NoLowNegligence$133$133
6487086
TRP Table Mountain Plant
Butte, CA
May 2010NoModNegligence$127$127
6487085
TRP Table Mountain Plant
Butte, CA
May 2010NoModNegligence$127$127
6487084
TRP Table Mountain Plant
Butte, CA
May 2010NoModNegligence$127$127
6487037
TRP-Sacramento Plant
Sacramento, CA
Apr 2010NoModNegligence$127$127
6487036
TRP-Sacramento Plant
Sacramento, CA
Apr 2010NoModNegligence$127$127
9530698
TRP-Los Banos Plant
Merced, CA
Aug 2021NoLowNegligence$125$125
8690441
TRP-Los Banos Plant
Merced, CA
Mar 2021NoLowNegligence$125$125
9502220
TRP-Sacramento Plant
Sacramento, CA
Feb 2020NoModNegligence$123$123
8779094
TRP-Sacramento Plant
Sacramento, CA
Nov 2019NoModNegligence$121$121
8609464
TRP-Sacramento Plant
Sacramento, CA
Aug 2011NoModNegligence$117$117
8568981
TRP-Sacramento Plant
Sacramento, CA
Feb 2011NoModNegligence$117$117
8568979
TRP-Sacramento Plant
Sacramento, CA
Feb 2011NoModNegligence$117$117
8568978
TRP-Sacramento Plant
Sacramento, CA
Feb 2011NoModNegligence$117$117
8690330
TRP-Sacramento Plant
Sacramento, CA
Aug 2017NoModNegligence$116$116
8690329
TRP-Sacramento Plant
Sacramento, CA
Aug 2017NoModNegligence$116$116
9372022
TRP Table Mountain Plant
Butte, CA
Mar 2017NoModNegligence$116$116
9372021
TRP Table Mountain Plant
Butte, CA
Mar 2017NoLowNegligence$116$116
8991296
TRP-Sacramento Plant
Sacramento, CA
Jan 2017NoModNegligence$116$116
8991295
TRP-Sacramento Plant
Sacramento, CA
Jan 2017NoModNegligence$116$116
8793919
TRP-Sacramento Plant
Sacramento, CA
Aug 2016NoModNegligence$114$114
8793918
TRP-Sacramento Plant
Sacramento, CA
Aug 2016NoModNegligence$114$114
8793917
TRP-Sacramento Plant
Sacramento, CA
Aug 2016NoModNegligence$114$114
8793916
TRP-Sacramento Plant
Sacramento, CA
Aug 2016NoLowNegligence$114$114
8879349
TRP Table Mountain Plant
Butte, CA
Apr 2016NoModNegligence$100$100
8873543
TRP-Sacramento Plant
Sacramento, CA
Feb 2016NoLowNegligence$100$100
8873653
TRP-Los Banos Plant
Merced, CA
Feb 2016NoLowNegligence$100$100
8793692
TRP-Los Banos Plant
Merced, CA
Apr 2015NoModNegligence$100$100
8703254
TRP-Sacramento Plant
Sacramento, CA
Mar 2015NoLowNegligence$100$100
8785895
TRP Table Mountain Plant
Butte, CA
Nov 2014NoLowNegligence$100$100
8785894
TRP Table Mountain Plant
Butte, CA
Nov 2014NoModNegligence$100$100
8793604
TRP-Sacramento Plant
Sacramento, CA
Aug 2014YesLowNegligence$100$100
8793603
TRP-Sacramento Plant
Sacramento, CA
Aug 2014NoModNegligence$100$100
8703400
TRP-Los Banos Plant
Merced, CA
Jul 2014NoModNegligence$100$100
8703397
TRP-Los Banos Plant
Merced, CA
Jul 2014NoLowNegligence$100$100
8703396
TRP-Los Banos Plant
Merced, CA
Jul 2014NoModNegligence$100$100
6345567
TRP Table Mountain Plant
Butte, CA
Jan 2014NoModNegligence$100$100
8703307
TRP-Los Banos Plant
Merced, CA
Dec 2013NoModNegligence$100$100
8703306
TRP-Los Banos Plant
Merced, CA
Dec 2013NoModNegligence$100$100
8703305
TRP-Los Banos Plant
Merced, CA
Dec 2013NoModNegligence$100$100
6481344
TRP-Sacramento Plant
Sacramento, CA
Aug 2013NoModNegligence$100$100
8698643
TRP-Los Banos Plant
Merced, CA
Mar 2013NoLowNegligence$100$100
8695976
TRP-Sacramento Plant
Sacramento, CA
Nov 2012NoLowNegligence$100$100
8695869
TRP Table Mountain Plant
Butte, CA
Oct 2012NoModNegligence$100$100
8695868
TRP Table Mountain Plant
Butte, CA
Oct 2012NoLowNegligence$100$100
8695867
TRP Table Mountain Plant
Butte, CA
Oct 2012NoLowNegligence$100$100
8695866
TRP Table Mountain Plant
Butte, CA
Oct 2012NoModNegligence$100$100
8695865
TRP Table Mountain Plant
Butte, CA
Oct 2012NoModNegligence$100$100
8613009
TRP-Sacramento Plant
Sacramento, CA
Jun 2012NoModNegligence$100$100
8613351
TRP-Los Banos Plant
Merced, CA
May 2012NoModNegligence$100$100
8613350
TRP-Los Banos Plant
Merced, CA
May 2012NoModNegligence$100$100
8609877
TRP Table Mountain Plant
Butte, CA
Jan 2012NoLowNegligence$100$100
8609467
TRP-Sacramento Plant
Sacramento, CA
Aug 2011NoLowNegligence$100$100
8609466
TRP-Sacramento Plant
Sacramento, CA
Aug 2011NoModNegligence$100$100
8609465
TRP-Sacramento Plant
Sacramento, CA
Aug 2011NoModNegligence$100$100
8609463
TRP-Sacramento Plant
Sacramento, CA
Aug 2011NoModNegligence$100$100
6387383
TRP-Los Banos Plant
Merced, CA
May 2011NoLowNegligence$100$100
6387382
TRP-Los Banos Plant
Merced, CA
May 2011NoModNegligence$100$100
8603814
TRP Table Mountain Plant
Butte, CA
Mar 2011NoLowNegligence$100$100
8603813
TRP Table Mountain Plant
Butte, CA
Mar 2011NoModNegligence$100$100
8568980
TRP-Sacramento Plant
Sacramento, CA
Feb 2011YesLowNegligence$100$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)

No NLRB unfair labor practice charges or union representation cases on file for TRIANGLE ROCK PRODUCTS, INC.. 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 TRIANGLE ROCK PRODUCTS, INC.. Verify directly with Office of Foreign Labor Certification

Environmental compliance (EPA)

No EPA inspections or formal enforcement actions on file for TRIANGLE ROCK PRODUCTS, INC.. 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
TRIANGLE ROCK PRODUCTS, LLC
22101 W SUNSET AVENUE · LOS BANOS, CA, 93635
AirWaterRCRANo Violation Identified00Jan 2019View →

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 TRIANGLE ROCK PRODUCTS, INC.. Verify directly with UVA Corporate Prosecution Registry

Federal contracts

No federal contracts are recorded to this specific location.

Company-wide — VULCAN MATERIALS COMPANY (across 12 entities)
Obligated (5-yr)
$12K
Obligated (all-time)
$3.6M
Awards (all-time)
134

Consolidated across all USAspending recipient entities under this corporate parent — not attributable to this single location.

Federal contract activity for the parent corporation. Source: USAspending.gov, net obligations. Recipient address is the SAM registration / HQ address, not necessarily the worksite.

Inspection history

DateTriggerViolationsSeriousPenalty
2019-06-26Planned0$0
2015-04-14Planned0$0
2014-06-05Planned0$0
2013-07-26Planned0$0
2012-10-30Planned0$0
2011-06-09Planned3$225
2010-06-02Planned1$0
2008-10-27Planned1$0
2007-08-30Planned2$0
2006-07-25Planned2$390
2006-07-13Planned0$0
2004-07-01Planned2$225
2003-05-14Planned2$150
2002-01-17Planned2$110
2000-07-18Planned2$150
1999-03-19Follow-up1$0

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

In the news

Part of a larger organization

TRIANGLE ROCK PRODUCTS, INC. is one of 303 establishments rolled up under the parent organization Vulcan Materials CO.

Federal enforcement records on this page represent activity at this specific establishment only. The full enforcement footprint of Vulcan Materials CO across all 303 of its tracked locations is viewable on the parent profile.

Other employers in this industry and state

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

Other locations under this parent

Other establishments operated by Vulcan Materials CO, ordered by federal enforcement volume:

Related searches

About this data

This profile aggregates federal enforcement records on TRIANGLE ROCK PRODUCTS, INC. 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. This establishment resolves to the parent rollup Vulcan Materials CO, which operates 303 establishments in our dataset.

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 TRIANGLE ROCK PRODUCTS, INC.'s OSHA violation history?
TRIANGLE ROCK PRODUCTS, INC. has 16 OSHA inspections on record with 18 violations and $1,250 in total penalties.
How does TRIANGLE ROCK PRODUCTS, INC.'s safety record compare to its industry?
TRIANGLE ROCK PRODUCTS, INC. operates in the construction sand and gravel mining industry. The industry average Total Recordable Incident Rate (TRIR) is 1.5.