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Establishment profile

NORTHERN AGGREGATES, INC.

16410 N HIGHWAY 101, WILLITS, CA, 95490
212319Other Crushed and Broken Stone Mining and Quarrying

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OSHA inspections
21
over 35 years
Violations
51
$38,245 in penalties
SVEP
YES
Severe violator program
Violations across 2 federal agencies
Enforcement actions from multiple agencies may indicate systemic compliance issues across functions.
Accident investigations on record
1 hospitalizations · 1 National Emphasis Program inspections · 1 OSHA follow-up

Summary

NORTHERN AGGREGATES, INC. has accumulated 51 OSHA violations across 21 inspections over 35 years of recorded history, with $38,245 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 98th percentile. The most recent enforcement activity was recorded 1 year ago.

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

Agency coverage

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

OSHA workplace safety

Inspections
21
0.6 / yr · last 35 yrs
Violations
51
1.5 / yr
Penalties
$38,245
$750 avg / violation
12% serious88% other
Inspection trigger · planned
17 of 21
Inspection trigger · accident
2 of 21

71% of inspections at this establishment produced violations, with 5 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 · 23 citations in this view · $33,535 in penalties.

CFR sectionCitationsInspectionsTotal penaltyFirst citedLast cited
7014 H22$1,160Jul 2006Apr 2007
6984 C22$335Aug 1999Jul 2006
29 CFR 2340.0022 A22$200Sep 2008Aug 2012
3583(D)11$10,800May 2017May 2017
3314(L)(1)11$5,400Aug 2016Aug 2016
3314(G)(1)(B)11$5,400Aug 2016Aug 2016
3314(G)(2)(A)11$5,400Aug 2016Aug 2016
6966 C11$655Apr 2007Apr 2007
342 A11$560Jul 2006Jul 2006
3395(H)(2)11$450Aug 2016Aug 2016
3395(H)(1)11$450Aug 2016Aug 2016
6151 C0111$420Jul 2006Jul 2006
3395(G)(1)11$375Aug 2016Aug 2016
3214 C11$335Jul 2006Jul 2006
3277 D0211$335Jul 2006Jul 2006
4050 A11$335Jul 2006Jul 2006
7046 B11$250Jul 2006Jul 2006
3314(J)11$225Aug 2016Aug 2016
3221(C)11$225Aug 2016Aug 2016
3395(G)(2)11$225Aug 2016Aug 2016

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 51 OSHA violations; peer median is 2.

Fewer violationsMore violations
Penalty percentile
99th
peer median: $300
Inspection frequency
98th
peer median: 2

Safety self-report (OSHA 300A)

No self-reported injury rates filed with OSHA's Injury Tracking Application for NORTHERN AGGREGATES, INC.. Verify directly with OSHA Injury Tracking Application

Industry benchmark

Industry avg TRIR
1.8
BLS SOII 2024
Industry avg DART
1.3
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
17
Complaint
1
Accident
2
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 NORTHERN AGGREGATES, INC.. 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
Mar 9, 2017Arm,Forearm,Grinder,Grinding Machine,Grinding Wheel,Kick Back,Laceration,Metal Strip,Portable Power Tool,Steel11

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
1 year ago

Most recent federal enforcement activity recorded 1 year ago. Data on this page is refreshed weekly.

Wage & Hour Division (WHD)

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

Mine safety (MSHA)

Company-level in CA — for NORTHERN AGGREGATES, INC., not this location alone

Violations
139
Assessed penalties
$23,984

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 NORTHERN AGGREGATES, INC. 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 · 35S&S · $21,162 proposed / $21,162 paid.

CitationMineDateSectionS&SNegligenceProposedPaid
9372133
Harris Quarry
Mendocino, CA
Jan 2018YesHighNegligence$2,487$2,487
9617433
Harris Quarry
Mendocino, CA
Jun 2025YesModNegligence$1,037$1,037
6337611
Harris Quarry
Mendocino, CA
Jun 2002YesHighNegligence$1,000$1,000
6337610
Harris Quarry
Mendocino, CA
Jun 2002YesHighNegligence$1,000$1,000
8873878
Harris Quarry
Mendocino, CA
Feb 2016YesLowNegligence$946$946
8873877
Harris Quarry
Mendocino, CA
Feb 2016YesModNegligence$634$634
6386007
Harris Quarry
Mendocino, CA
Sep 2006YesHighNegligence$524$524
9617434
Harris Quarry
Mendocino, CA
Jun 2025YesHighNegligence$465$465
9507575
Harris Quarry
Mendocino, CA
Jun 2022YesModNegligence$378$378
9377532
Harris Quarry
Mendocino, CA
Sep 2018YesModNegligence$336$336
9377531
Harris Quarry
Mendocino, CA
Sep 2018YesModNegligence$336$336
9377529
Harris Quarry
Mendocino, CA
Sep 2018YesModNegligence$336$336
6386009
Harris Quarry
Mendocino, CA
Sep 2006YesHighNegligence$305$305
6386008
Harris Quarry
Mendocino, CA
Sep 2006YesHighNegligence$305$305
7958398
Harris Quarry
Mendocino, CA
Jun 2007YesModNegligence$285$285
7958243
Harris Quarry
Mendocino, CA
Dec 2006YesModNegligence$268$268
8793000
Harris Quarry
Mendocino, CA
Oct 2014YesModNegligence$263$263
5102602
Harris Quarry
Mendocino, CA
Dec 2025NoModNegligence$209$209
5102157
Harris Quarry
Mendocino, CA
May 2026NoModNegligence$193$193
8858966
Harris Quarry
Mendocino, CA
Mar 2015NoModNegligence$190$190
7958213
Harris Quarry
Mendocino, CA
Oct 2006YesModNegligence$165$165
6337915
Harris Quarry
Mendocino, CA
Jan 2003YesModNegligence$161$161
6337914
Harris Quarry
Mendocino, CA
Jan 2003YesModNegligence$161$161
6379700
Harris Quarry
Mendocino, CA
Dec 2005YesModNegligence$154$154
9617438
Harris Quarry
Mendocino, CA
Jun 2025NoLowNegligence$151$151
9617437
Harris Quarry
Mendocino, CA
Jun 2025NoModNegligence$151$151
9617436
Harris Quarry
Mendocino, CA
Jun 2025NoModNegligence$151$151
9617435
Harris Quarry
Mendocino, CA
Jun 2025NoModNegligence$151$151
9680418
Harris Quarry
Mendocino, CA
Mar 2025NoModNegligence$151$151
9680417
Harris Quarry
Mendocino, CA
Mar 2025NoModNegligence$151$151
9680416
Harris Quarry
Mendocino, CA
Mar 2025NoModNegligence$151$151
9680415
Harris Quarry
Mendocino, CA
Mar 2025NoModNegligence$151$151
9507516
Harris Quarry
Mendocino, CA
Mar 2022NoModNegligence$148$148
9890027
Harris Quarry
Mendocino, CA
May 2024NoLowNegligence$147$147
6393027
Harris Quarry
Mendocino, CA
Apr 2006YesModNegligence$144$144
8912414
Harris Quarry
Mendocino, CA
Jul 2023NoModNegligence$143$143
7998342
Harris Quarry
Mendocino, CA
Oct 2001YesModNegligence$140$140
7998341
Harris Quarry
Mendocino, CA
Oct 2001YesModNegligence$140$140
7998340
Harris Quarry
Mendocino, CA
Oct 2001YesModNegligence$140$140
6366925
Harris Quarry
Mendocino, CA
Apr 2005YesModNegligence$135$135
9507579
Harris Quarry
Mendocino, CA
Jun 2022NoModNegligence$133$133
9507578
Harris Quarry
Mendocino, CA
Jun 2022NoModNegligence$133$133
9507577
Harris Quarry
Mendocino, CA
Jun 2022NoModNegligence$133$133
9507515
Harris Quarry
Mendocino, CA
Mar 2022NoModNegligence$133$133
9507514
Harris Quarry
Mendocino, CA
Mar 2022NoModNegligence$133$133
7998343
Harris Quarry
Mendocino, CA
Oct 2001YesModNegligence$129$129
8873880
Harris Quarry
Mendocino, CA
Feb 2016NoModNegligence$127$127
8873879
Harris Quarry
Mendocino, CA
Feb 2016NoModNegligence$127$127
8603691
Harris Quarry
Mendocino, CA
May 2011NoModNegligence$127$127
6443491
Harris Quarry
Mendocino, CA
Apr 2009YesModNegligence$127$127
9502960
Harris Quarry
Mendocino, CA
Jan 2021NoModNegligence$125$125
6379703
Harris Quarry
Mendocino, CA
Dec 2005YesModNegligence$124$124
6379702
Harris Quarry
Mendocino, CA
Dec 2005YesModNegligence$124$124
9437984
Harris Quarry
Mendocino, CA
Jun 2020NoLowNegligence$123$123
9502032
Harris Quarry
Mendocino, CA
Nov 2019NoModNegligence$121$121
9433145
Harris Quarry
Mendocino, CA
Apr 2019NoModNegligence$121$121
9433043
Harris Quarry
Mendocino, CA
Oct 2018NoModNegligence$118$118
9433042
Harris Quarry
Mendocino, CA
Oct 2018NoModNegligence$118$118
9377530
Harris Quarry
Mendocino, CA
Sep 2018NoModNegligence$118$118
9372132
Harris Quarry
Mendocino, CA
Jan 2018NoModNegligence$118$118
3914501
Harris Quarry
Mendocino, CA
Oct 2014YesModNegligence$117$117
8603692
Harris Quarry
Mendocino, CA
May 2011NoModNegligence$117$117
8603690
Harris Quarry
Mendocino, CA
May 2011NoModNegligence$117$117
6489846
Harris Quarry
Mendocino, CA
May 2010NoModNegligence$117$117
6489845
Harris Quarry
Mendocino, CA
May 2010NoModNegligence$117$117
6487261
Harris Quarry
Mendocino, CA
Jan 2010YesModNegligence$117$117
9372619
Harris Quarry
Mendocino, CA
Aug 2017NoModNegligence$116$116
8873740
Harris Quarry
Mendocino, CA
Nov 2016NoLowNegligence$114$114
8879770
Harris Quarry
Mendocino, CA
Jun 2016NoModNegligence$114$114
8879769
Harris Quarry
Mendocino, CA
Jun 2016NoModNegligence$114$114
6393026
Harris Quarry
Mendocino, CA
Apr 2006YesModNegligence$107$107
8793006
Harris Quarry
Mendocino, CA
Oct 2014NoModNegligence$100$100
8793005
Harris Quarry
Mendocino, CA
Oct 2014NoModNegligence$100$100
8793004
Harris Quarry
Mendocino, CA
Oct 2014NoModNegligence$100$100
8793003
Harris Quarry
Mendocino, CA
Oct 2014NoModNegligence$100$100
8793002
Harris Quarry
Mendocino, CA
Oct 2014NoModNegligence$100$100
8793001
Harris Quarry
Mendocino, CA
Oct 2014NoHighNegligence$100$100
8703500
Harris Quarry
Mendocino, CA
Oct 2014NoModNegligence$100$100
3914504
Harris Quarry
Mendocino, CA
Oct 2014NoModNegligence$100$100
3914503
Harris Quarry
Mendocino, CA
Oct 2014NoModNegligence$100$100
3914502
Harris Quarry
Mendocino, CA
Oct 2014YesModNegligence$100$100
8702966
Harris Quarry
Mendocino, CA
May 2014NoModNegligence$100$100
8702965
Harris Quarry
Mendocino, CA
Apr 2014NoModNegligence$100$100
8702928
Harris Quarry
Mendocino, CA
Jan 2014NoModNegligence$100$100
8702927
Harris Quarry
Mendocino, CA
Jan 2014NoLowNegligence$100$100
8612691
Harris Quarry
Mendocino, CA
Aug 2013NoModNegligence$100$100
8698544
Harris Quarry
Mendocino, CA
Nov 2012NoModNegligence$100$100
8698543
Harris Quarry
Mendocino, CA
Nov 2012NoModNegligence$100$100
8698542
Harris Quarry
Mendocino, CA
Nov 2012NoLowNegligence$100$100
8698541
Harris Quarry
Mendocino, CA
Nov 2012YesModNegligence$100$100
8698540
Harris Quarry
Mendocino, CA
Nov 2012NoModNegligence$100$100
8698539
Harris Quarry
Mendocino, CA
Nov 2012NoModNegligence$100$100
8603357
Harris Quarry
Mendocino, CA
Feb 2012NoModNegligence$100$100
8603356
Harris Quarry
Mendocino, CA
Feb 2012NoModNegligence$100$100
8568244
Harris Quarry
Mendocino, CA
Dec 2010NoModNegligence$100$100
8568243
Harris Quarry
Mendocino, CA
Dec 2010NoModNegligence$100$100
8568242
Harris Quarry
Mendocino, CA
Dec 2010NoModNegligence$100$100
8568241
Harris Quarry
Mendocino, CA
Dec 2010NoModNegligence$100$100
8568240
Harris Quarry
Mendocino, CA
Dec 2010NoModNegligence$100$100
8568239
Harris Quarry
Mendocino, CA
Dec 2010NoModNegligence$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 NORTHERN AGGREGATES, 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 NORTHERN AGGREGATES, INC.. Verify directly with Office of Foreign Labor Certification

Environmental compliance (EPA)

No EPA inspections or formal enforcement actions on file for NORTHERN AGGREGATES, 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). 2 facilities.

FacilityPermitsStatusInspectionsFormal actionsPenaltiesLast inspectedECHO
NORTHERN AGGREGATES INC
16680 N HWY 101 · WILLITS, CA, 95490
RCRANo Violation Identified00View →
NORTHERN AGGREGATES INC
500 CROPLEY LN · WILLITS, CA, 95490
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.

Motor carrier safety (FMCSA)

DOT number
2664421
Operation
A

Federal Motor Carrier Safety Administration — DOT-regulated carrier registration and fleet data.

Federal criminal prosecution record

No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for NORTHERN AGGREGATES, INC.. Verify directly with UVA Corporate Prosecution Registry

Federal contracts

This location

Obligated (5-yr)
$0
Obligated (all-time)
$285K
Awards
9
Top agency
Department of Defense
$181K
Top agencies by obligation (this location)
Department of Defense$181K
Department of Agriculture$65K
Department of the Interior$39K
Largest awards
  • Department of Defense
    TAS::96 3135::TAS ARRA::YES::ARRA RECOVERYPROJECT#::4230::RP# PURCHASE AND DELIVERY OF 3500 TONS OF 18-INCH STONE. THE STONE WILL BE USED TO REPAIR EROSION DAMAGE TO THE COYOTE VALLEY DAM / LAKE MENDOCINO PROJECT S OUTLET WORKS CHANNEL.
    contract · Last action 2010-12-09
    $118,560
  • Department of Defense
    TAS::96 3135::TAS RECOVERY --- DRY CREEK OUTLET CHANNEL RIPRAP REPLACEMENT
    contract · Last action 2009-09-24
    $64,875
  • Department of Agriculture
    AAP #05NC08115022 - SUPPLY AND DELIVERY OF 3/4-INCH CRUSHED AGGREGATE BASE ROCK. LAKE RAC.
    contract · Last action 2011-04-04
    $47,494
  • Department of the Interior
    ROCK FOR BLUE OAK PROJECT
    contract · Last action 2013-08-15
    $24,570
  • Department of Agriculture
    IGF::CT::IGF
    contract · Last action 2014-11-21
    $17,920
  • Department of the Interior
    AGGREGATE MATERIAL
    contract · Last action 2012-04-30
    $13,975
  • Department of the Interior
    RIP RAP
    contract · Last action 2008-04-09
    $8,195
  • Department of Defense
    RIP RAP
    contract · Last action 2008-08-22
    $-2,379
  • Department of the Interior
    PO FOR RIPRAP/BACKING
    contract · Last action 2008-03-25
    $-8,095

Federal contract dollars to this establishment. Primary NAICS: 212312 - CRUSHED AND BROKEN LIMESTONE MINING AND QUARRYING. Last action: 2014-11-21. Source: USAspending.gov, net obligations. Recipient address is the SAM registration / HQ address, not necessarily the worksite.

Inspection history

DateTriggerViolationsSeriousPenalty
2025-06-25Planned0$0
2023-01-10Accident0$0
2018-03-28Planned2$350
2017-03-21Accident11$10,800
2016-05-11Planned203$20,415
2014-04-28Planned4$765
2013-12-05Planned0$0
2012-08-09Planned1$0
2008-08-13Planned1$200
2007-04-24Planned2$1,705
2006-09-08Follow-up0$0
2006-05-09Complaint111$3,210
2000-06-28Planned2$300
1999-04-29Planned21$200
1998-04-08Planned1$0
1997-01-23Planned1$0
1996-04-03Planned0$0
1995-04-05Planned1$75
1993-06-03Planned1$75
1992-06-10Planned1$150
1991-02-05Planned0$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 other crushed and broken stone mining and quarrying within CA, ordered by federal enforcement volume:

Related searches

About this data

This profile aggregates federal enforcement records on NORTHERN AGGREGATES, 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.

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 NORTHERN AGGREGATES, INC.'s OSHA violation history?
NORTHERN AGGREGATES, INC. has 21 OSHA inspections on record with 51 violations and $38,245 in total penalties.
How does NORTHERN AGGREGATES, INC.'s safety record compare to its industry?
NORTHERN AGGREGATES, INC. operates in the other crushed and broken stone mining and quarrying industry. The industry average Total Recordable Incident Rate (TRIR) is 1.8.