Establishment profile
NORTHERN AGGREGATES INC
PM 6.74 HIGHWAY 101, HOPLAND, CA, 95449
Summary
NORTHERN AGGREGATES INC has accumulated 8 OSHA violations across 6 inspections over 28 years of recorded history, with $450 in total assessed penalties.
The establishment sits in the 92nd percentile for violations within its industry-state peer group of 119,381 employers. Inspection frequency runs at the 99th percentile. The most recent enforcement activity was recorded 23 years 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 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
83% 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. 8 distinct standards shown · 8 citations in this view · $450 in penalties.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 5097 C10 | 1 | 1 | $150 | Jan 2002 | Jan 2002 |
| 29 CFR 2500.0009 A | 1 | 1 | $150 | Feb 2000 | Feb 2000 |
| 7010 I | 1 | 1 | $75 | Jan 2002 | Jan 2002 |
| 3214 A05 | 1 | 1 | $75 | Jul 1997 | Jul 1997 |
| 7046 E | 1 | 1 | — | Sep 2000 | Sep 2000 |
| 7010 A | 1 | 1 | — | Sep 2000 | Sep 2000 |
| 29 CFR 2500.0008 A | 1 | 1 | — | Feb 2000 | Feb 2000 |
| 4184 A | 1 | 1 | — | Oct 1998 | Oct 1998 |
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
Worse on violations than most other employers. Peer group: 119,381 employers. This establishment has 8 OSHA violations; peer median is 1.
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 →
Inspection breakdown
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 →
Activity timeline
No federal enforcement activity has been recorded against this establishment in 23+ years. Most recent activity: 23 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 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
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 / $20,969 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 9372133 | Harris Quarry Mendocino, CA | Jan 2018 | — | Yes | HighNegligence | $2,487 | $2,487 |
| 9617433 | Harris Quarry Mendocino, CA | Jun 2025 | — | Yes | ModNegligence | $1,037 | $1,037 |
| 6337611 | Harris Quarry Mendocino, CA | Jun 2002 | — | Yes | HighNegligence | $1,000 | $1,000 |
| 6337610 | Harris Quarry Mendocino, CA | Jun 2002 | — | Yes | HighNegligence | $1,000 | $1,000 |
| 8873878 | Harris Quarry Mendocino, CA | Feb 2016 | — | Yes | LowNegligence | $946 | $946 |
| 8873877 | Harris Quarry Mendocino, CA | Feb 2016 | — | Yes | ModNegligence | $634 | $634 |
| 6386007 | Harris Quarry Mendocino, CA | Sep 2006 | — | Yes | HighNegligence | $524 | $524 |
| 9617434 | Harris Quarry Mendocino, CA | Jun 2025 | — | Yes | HighNegligence | $465 | $465 |
| 9507575 | Harris Quarry Mendocino, CA | Jun 2022 | — | Yes | ModNegligence | $378 | $378 |
| 9377532 | Harris Quarry Mendocino, CA | Sep 2018 | — | Yes | ModNegligence | $336 | $336 |
| 9377531 | Harris Quarry Mendocino, CA | Sep 2018 | — | Yes | ModNegligence | $336 | $336 |
| 9377529 | Harris Quarry Mendocino, CA | Sep 2018 | — | Yes | ModNegligence | $336 | $336 |
| 6386009 | Harris Quarry Mendocino, CA | Sep 2006 | — | Yes | HighNegligence | $305 | $305 |
| 6386008 | Harris Quarry Mendocino, CA | Sep 2006 | — | Yes | HighNegligence | $305 | $305 |
| 7958398 | Harris Quarry Mendocino, CA | Jun 2007 | — | Yes | ModNegligence | $285 | $285 |
| 7958243 | Harris Quarry Mendocino, CA | Dec 2006 | — | Yes | ModNegligence | $268 | $268 |
| 8793000 | Harris Quarry Mendocino, CA | Oct 2014 | — | Yes | ModNegligence | $263 | $263 |
| 5102602 | Harris Quarry Mendocino, CA | Dec 2025 | — | No | ModNegligence | $209 | $209 |
| 5102157 | Harris Quarry Mendocino, CA | May 2026 | — | No | ModNegligence | $193 | — |
| 8858966 | Harris Quarry Mendocino, CA | Mar 2015 | — | No | ModNegligence | $190 | $190 |
| 7958213 | Harris Quarry Mendocino, CA | Oct 2006 | — | Yes | ModNegligence | $165 | $165 |
| 6337915 | Harris Quarry Mendocino, CA | Jan 2003 | — | Yes | ModNegligence | $161 | $161 |
| 6337914 | Harris Quarry Mendocino, CA | Jan 2003 | — | Yes | ModNegligence | $161 | $161 |
| 6379700 | Harris Quarry Mendocino, CA | Dec 2005 | — | Yes | ModNegligence | $154 | $154 |
| 9617438 | Harris Quarry Mendocino, CA | Jun 2025 | — | No | LowNegligence | $151 | $151 |
| 9617437 | Harris Quarry Mendocino, CA | Jun 2025 | — | No | ModNegligence | $151 | $151 |
| 9617436 | Harris Quarry Mendocino, CA | Jun 2025 | — | No | ModNegligence | $151 | $151 |
| 9617435 | Harris Quarry Mendocino, CA | Jun 2025 | — | No | ModNegligence | $151 | $151 |
| 9680418 | Harris Quarry Mendocino, CA | Mar 2025 | — | No | ModNegligence | $151 | $151 |
| 9680417 | Harris Quarry Mendocino, CA | Mar 2025 | — | No | ModNegligence | $151 | $151 |
| 9680416 | Harris Quarry Mendocino, CA | Mar 2025 | — | No | ModNegligence | $151 | $151 |
| 9680415 | Harris Quarry Mendocino, CA | Mar 2025 | — | No | ModNegligence | $151 | $151 |
| 9507516 | Harris Quarry Mendocino, CA | Mar 2022 | — | No | ModNegligence | $148 | $148 |
| 9890027 | Harris Quarry Mendocino, CA | May 2024 | — | No | LowNegligence | $147 | $147 |
| 6393027 | Harris Quarry Mendocino, CA | Apr 2006 | — | Yes | ModNegligence | $144 | $144 |
| 8912414 | Harris Quarry Mendocino, CA | Jul 2023 | — | No | ModNegligence | $143 | $143 |
| 7998342 | Harris Quarry Mendocino, CA | Oct 2001 | — | Yes | ModNegligence | $140 | $140 |
| 7998341 | Harris Quarry Mendocino, CA | Oct 2001 | — | Yes | ModNegligence | $140 | $140 |
| 7998340 | Harris Quarry Mendocino, CA | Oct 2001 | — | Yes | ModNegligence | $140 | $140 |
| 6366925 | Harris Quarry Mendocino, CA | Apr 2005 | — | Yes | ModNegligence | $135 | $135 |
| 9507579 | Harris Quarry Mendocino, CA | Jun 2022 | — | No | ModNegligence | $133 | $133 |
| 9507578 | Harris Quarry Mendocino, CA | Jun 2022 | — | No | ModNegligence | $133 | $133 |
| 9507577 | Harris Quarry Mendocino, CA | Jun 2022 | — | No | ModNegligence | $133 | $133 |
| 9507515 | Harris Quarry Mendocino, CA | Mar 2022 | — | No | ModNegligence | $133 | $133 |
| 9507514 | Harris Quarry Mendocino, CA | Mar 2022 | — | No | ModNegligence | $133 | $133 |
| 7998343 | Harris Quarry Mendocino, CA | Oct 2001 | — | Yes | ModNegligence | $129 | $129 |
| 8873880 | Harris Quarry Mendocino, CA | Feb 2016 | — | No | ModNegligence | $127 | $127 |
| 8873879 | Harris Quarry Mendocino, CA | Feb 2016 | — | No | ModNegligence | $127 | $127 |
| 8603691 | Harris Quarry Mendocino, CA | May 2011 | — | No | ModNegligence | $127 | $127 |
| 6443491 | Harris Quarry Mendocino, CA | Apr 2009 | — | Yes | ModNegligence | $127 | $127 |
| 9502960 | Harris Quarry Mendocino, CA | Jan 2021 | — | No | ModNegligence | $125 | $125 |
| 6379703 | Harris Quarry Mendocino, CA | Dec 2005 | — | Yes | ModNegligence | $124 | $124 |
| 6379702 | Harris Quarry Mendocino, CA | Dec 2005 | — | Yes | ModNegligence | $124 | $124 |
| 9437984 | Harris Quarry Mendocino, CA | Jun 2020 | — | No | LowNegligence | $123 | $123 |
| 9502032 | Harris Quarry Mendocino, CA | Nov 2019 | — | No | ModNegligence | $121 | $121 |
| 9433145 | Harris Quarry Mendocino, CA | Apr 2019 | — | No | ModNegligence | $121 | $121 |
| 9433043 | Harris Quarry Mendocino, CA | Oct 2018 | — | No | ModNegligence | $118 | $118 |
| 9433042 | Harris Quarry Mendocino, CA | Oct 2018 | — | No | ModNegligence | $118 | $118 |
| 9377530 | Harris Quarry Mendocino, CA | Sep 2018 | — | No | ModNegligence | $118 | $118 |
| 9372132 | Harris Quarry Mendocino, CA | Jan 2018 | — | No | ModNegligence | $118 | $118 |
| 3914501 | Harris Quarry Mendocino, CA | Oct 2014 | — | Yes | ModNegligence | $117 | $117 |
| 8603692 | Harris Quarry Mendocino, CA | May 2011 | — | No | ModNegligence | $117 | $117 |
| 8603690 | Harris Quarry Mendocino, CA | May 2011 | — | No | ModNegligence | $117 | $117 |
| 6489846 | Harris Quarry Mendocino, CA | May 2010 | — | No | ModNegligence | $117 | $117 |
| 6489845 | Harris Quarry Mendocino, CA | May 2010 | — | No | ModNegligence | $117 | $117 |
| 6487261 | Harris Quarry Mendocino, CA | Jan 2010 | — | Yes | ModNegligence | $117 | $117 |
| 9372619 | Harris Quarry Mendocino, CA | Aug 2017 | — | No | ModNegligence | $116 | $116 |
| 8873740 | Harris Quarry Mendocino, CA | Nov 2016 | — | No | LowNegligence | $114 | $114 |
| 8879770 | Harris Quarry Mendocino, CA | Jun 2016 | — | No | ModNegligence | $114 | $114 |
| 8879769 | Harris Quarry Mendocino, CA | Jun 2016 | — | No | ModNegligence | $114 | $114 |
| 6393026 | Harris Quarry Mendocino, CA | Apr 2006 | — | Yes | ModNegligence | $107 | $107 |
| 8793006 | Harris Quarry Mendocino, CA | Oct 2014 | — | No | ModNegligence | $100 | $100 |
| 8793005 | Harris Quarry Mendocino, CA | Oct 2014 | — | No | ModNegligence | $100 | $100 |
| 8793004 | Harris Quarry Mendocino, CA | Oct 2014 | — | No | ModNegligence | $100 | $100 |
| 8793003 | Harris Quarry Mendocino, CA | Oct 2014 | — | No | ModNegligence | $100 | $100 |
| 8793002 | Harris Quarry Mendocino, CA | Oct 2014 | — | No | ModNegligence | $100 | $100 |
| 8793001 | Harris Quarry Mendocino, CA | Oct 2014 | — | No | HighNegligence | $100 | $100 |
| 8703500 | Harris Quarry Mendocino, CA | Oct 2014 | — | No | ModNegligence | $100 | $100 |
| 3914504 | Harris Quarry Mendocino, CA | Oct 2014 | — | No | ModNegligence | $100 | $100 |
| 3914503 | Harris Quarry Mendocino, CA | Oct 2014 | — | No | ModNegligence | $100 | $100 |
| 3914502 | Harris Quarry Mendocino, CA | Oct 2014 | — | Yes | ModNegligence | $100 | $100 |
| 8702966 | Harris Quarry Mendocino, CA | May 2014 | — | No | ModNegligence | $100 | $100 |
| 8702965 | Harris Quarry Mendocino, CA | Apr 2014 | — | No | ModNegligence | $100 | $100 |
| 8702928 | Harris Quarry Mendocino, CA | Jan 2014 | — | No | ModNegligence | $100 | $100 |
| 8702927 | Harris Quarry Mendocino, CA | Jan 2014 | — | No | LowNegligence | $100 | $100 |
| 8612691 | Harris Quarry Mendocino, CA | Aug 2013 | — | No | ModNegligence | $100 | $100 |
| 8698544 | Harris Quarry Mendocino, CA | Nov 2012 | — | No | ModNegligence | $100 | $100 |
| 8698543 | Harris Quarry Mendocino, CA | Nov 2012 | — | No | ModNegligence | $100 | $100 |
| 8698542 | Harris Quarry Mendocino, CA | Nov 2012 | — | No | LowNegligence | $100 | $100 |
| 8698541 | Harris Quarry Mendocino, CA | Nov 2012 | — | Yes | ModNegligence | $100 | $100 |
| 8698540 | Harris Quarry Mendocino, CA | Nov 2012 | — | No | ModNegligence | $100 | $100 |
| 8698539 | Harris Quarry Mendocino, CA | Nov 2012 | — | No | ModNegligence | $100 | $100 |
| 8603357 | Harris Quarry Mendocino, CA | Feb 2012 | — | No | ModNegligence | $100 | $100 |
| 8603356 | Harris Quarry Mendocino, CA | Feb 2012 | — | No | ModNegligence | $100 | $100 |
| 8568244 | Harris Quarry Mendocino, CA | Dec 2010 | — | No | ModNegligence | $100 | $100 |
| 8568243 | Harris Quarry Mendocino, CA | Dec 2010 | — | No | ModNegligence | $100 | $100 |
| 8568242 | Harris Quarry Mendocino, CA | Dec 2010 | — | No | ModNegligence | $100 | $100 |
| 8568241 | Harris Quarry Mendocino, CA | Dec 2010 | — | No | ModNegligence | $100 | $100 |
| 8568240 | Harris Quarry Mendocino, CA | Dec 2010 | — | No | ModNegligence | $100 | $100 |
| 8568239 | Harris Quarry Mendocino, CA | Dec 2010 | — | No | ModNegligence | $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 →
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 →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2002-10-10 | Planned | 0 | — | $0 | |
| 2001-11-08 | Planned | 2 | — | $225 | |
| 2000-09-14 | Planned | 2 | — | $0 | |
| 2000-01-12 | Planned | 2 | — | $150 | |
| 1998-10-15 | Planned | 1 | — | $0 | |
| 1997-07-15 | Planned | 1 | — | $75 |
Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.
In the news
Related searches
- Employers in CAState-wide enforcement data
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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Contact sales →Frequently asked
- What is NORTHERN AGGREGATES INC's OSHA violation history?
- NORTHERN AGGREGATES INC has 6 OSHA inspections on record with 8 violations and $450 in total penalties.