Establishment profile
HANSEN BROS. ENTERPRISES
12685 MULE CANYON RD, GRASS VALLEY, CA, 95945
212321 — Construction Sand and Gravel Mining
EIN 941521901
Summary
HANSEN BROS. ENTERPRISES has accumulated 28 OSHA violations across 34 inspections over 37 years of recorded history, with $12,050 in total assessed penalties.
The establishment sits in the 98th 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 5 months ago.
Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
HANSEN BROS. ENTERPRISES 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
44% 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. 20 distinct standards shown · 21 citations in this view · $11,490 in penalties.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 4002 A | 2 | 2 | $335 | Jun 2006 | Nov 2011 |
| 342(A) | 1 | 1 | $5,000 | Aug 2024 | Aug 2024 |
| 3942 A | 1 | 1 | $485 | May 2007 | May 2007 |
| 3234 E01 | 1 | 1 | $450 | Jun 2006 | Jun 2006 |
| 7046 C | 1 | 1 | $450 | Apr 2006 | Apr 2006 |
| 3277(F)(2) | 1 | 1 | $420 | Mar 2026 | Mar 2026 |
| 29 CFR 2340.0027 | 1 | 1 | $400 | Jun 2022 | Jun 2022 |
| 3221(B)(1) | 1 | 1 | $375 | May 2019 | May 2019 |
| 7055(M) | 1 | 1 | $375 | May 2019 | May 2019 |
| 3314(G)(2)(A) | 1 | 1 | $375 | Sep 2018 | Sep 2018 |
| 3277 J03 | 1 | 1 | $335 | Jun 2006 | Jun 2006 |
| 3210 B | 1 | 1 | $335 | Apr 2006 | Apr 2006 |
| 4851 E02 | 1 | 1 | $335 | Apr 2006 | Apr 2006 |
| 3276(E)(3) | 1 | 1 | $300 | Jun 2022 | Jun 2022 |
| 461 A | 1 | 1 | $300 | Apr 2006 | Apr 2006 |
| 3395(I)(1) | 1 | 1 | $250 | Sep 2018 | Sep 2018 |
| 5572(C) | 1 | 1 | $250 | Sep 2018 | Sep 2018 |
| 3999 B | 1 | 1 | $250 | Jun 2000 | Jun 2000 |
| 3232 F | 1 | 1 | $245 | May 2007 | May 2007 |
| 4650 F | 1 | 1 | $225 | Nov 2008 | Nov 2008 |
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 nearly every other employer in NAICS 2123 within CA. Peer group: 1,687 employers. This establishment has 28 OSHA violations; peer median is 2.
Safety self-report (OSHA 300A)
Recordable injury rates the employer filed with OSHA’s Injury Tracking Application. DART covers cases with days away, restricted, or transferred; TRIR is the total recordable case rate.
Reported for 104 average annual employees at this establishment.
Source: OSHA ITA Form 300A (employer self-reported). Rates are per 100 full-time equivalent workers. Establishments below the ~10-FTE threshold are not required to report.
Industry benchmark
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
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 HANSEN BROS. ENTERPRISES. 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.
| Date | Event | Injuries | Hospitalized | Fatalities | |
|---|---|---|---|---|---|
| Jul 27, 2011 | PORTABLE POWER TOOL,STEEL TUBE,CONSTRUCTION,SAW,LACERATION,PIPE,STRUCK BY,ARM,HAND TOOL | 1 | 1 | — |
Source: OSHA accident investigations. Narratives are recorded by the inspecting officer and may be truncated.
Activity timeline
Most recent federal enforcement activity recorded 5 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 HANSEN BROS. ENTERPRISES. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in CA — for HANSEN BROS. ENTERPRISES, 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 HANSEN BROS. ENTERPRISES 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. 57 citations · 18S&S · $8,495 proposed / $8,495 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 8612733 | Bear River Plant Nevada, CA | Dec 2011 | — | Yes | HighNegligence | $2,000 | $2,000 |
| 8612737 | Bear River Plant Nevada, CA | Dec 2011 | — | Yes | HighNegligence | $392 | $392 |
| 8612732 | Bear River Plant Nevada, CA | Dec 2011 | — | Yes | ModNegligence | $263 | $263 |
| 8603437 | Bear River Plant Nevada, CA | Mar 2011 | — | Yes | ModNegligence | $263 | $263 |
| 8561067 | Bear River Plant Nevada, CA | Jun 2010 | — | Yes | ModNegligence | $263 | $263 |
| 9680946 | Ridge Rock Quarry Nevada, CA | Oct 2025 | — | No | LowNegligence | $151 | $151 |
| 9689200 | Ridge Rock Quarry Nevada, CA | Jan 2025 | — | No | LowNegligence | $151 | $151 |
| 9372980 | Ridge Rock Quarry Nevada, CA | Jul 2024 | — | No | ModNegligence | $147 | $147 |
| 9372979 | Ridge Rock Quarry Nevada, CA | Jul 2024 | — | No | ModNegligence | $147 | $147 |
| 9372944 | Ridge Rock Quarry Nevada, CA | Feb 2024 | — | No | ModNegligence | $147 | $147 |
| 9372943 | Ridge Rock Quarry Nevada, CA | Feb 2024 | — | No | LowNegligence | $147 | $147 |
| 9619669 | Ridge Rock Quarry Nevada, CA | Aug 2023 | — | No | ModNegligence | $143 | $143 |
| 9507683 | Ridge Rock Quarry Nevada, CA | Dec 2022 | — | No | ModNegligence | $143 | $143 |
| 9507682 | Ridge Rock Quarry Nevada, CA | Dec 2022 | — | No | ModNegligence | $143 | $143 |
| 7998774 | Bear River Plant Nevada, CA | Jan 2003 | — | Yes | ModNegligence | $140 | $140 |
| 7998773 | Bear River Plant Nevada, CA | Jan 2003 | — | Yes | ModNegligence | $140 | $140 |
| 7998771 | Bear River Plant Nevada, CA | Jan 2003 | — | Yes | ModNegligence | $140 | $140 |
| 6489061 | Bear River Plant Nevada, CA | Oct 2009 | — | Yes | ModNegligence | $127 | $127 |
| 6432251 | Bear River Plant Nevada, CA | Nov 2007 | — | Yes | ModNegligence | $127 | $127 |
| 9502936 | Ridge Rock Quarry Nevada, CA | Nov 2020 | — | No | ModNegligence | $123 | $123 |
| 6337071 | Bear River Plant Nevada, CA | Apr 2002 | — | Yes | ModNegligence | $113 | $113 |
| 7998772 | Bear River Plant Nevada, CA | Jan 2003 | — | Yes | ModNegligence | $104 | $104 |
| 8858922 | Bear River Plant Nevada, CA | Feb 2015 | — | No | ModNegligence | $100 | $100 |
| 8698752 | Bear River Plant Nevada, CA | Jan 2013 | — | No | ModNegligence | $100 | $100 |
| 8698751 | Bear River Plant Nevada, CA | Jan 2013 | — | No | ModNegligence | $100 | $100 |
| 8698750 | Bear River Plant Nevada, CA | Jan 2013 | — | No | LowNegligence | $100 | $100 |
| 8698749 | Bear River Plant Nevada, CA | Jan 2013 | — | No | LowNegligence | $100 | $100 |
| 8612736 | Bear River Plant Nevada, CA | Dec 2011 | — | No | ModNegligence | $100 | $100 |
| 8612735 | Bear River Plant Nevada, CA | Dec 2011 | — | Yes | ModNegligence | $100 | $100 |
| 8612734 | Bear River Plant Nevada, CA | Dec 2011 | — | No | ModNegligence | $100 | $100 |
| 8609185 | Bear River Plant Nevada, CA | Jul 2011 | — | Yes | ModNegligence | $100 | $100 |
| 8609184 | Bear River Plant Nevada, CA | Jul 2011 | — | Yes | ModNegligence | $100 | $100 |
| 8609183 | Bear River Plant Nevada, CA | Jul 2011 | — | No | LowNegligence | $100 | $100 |
| 8561066 | Bear River Plant Nevada, CA | Jun 2010 | — | No | LowNegligence | $100 | $100 |
| 8561065 | Bear River Plant Nevada, CA | Jun 2010 | — | No | ModNegligence | $100 | $100 |
| 6489060 | Bear River Plant Nevada, CA | Oct 2009 | — | No | ModNegligence | $100 | $100 |
| 6489059 | Bear River Plant Nevada, CA | Oct 2009 | — | No | ModNegligence | $100 | $100 |
| 6484063 | Bear River Plant Nevada, CA | Apr 2009 | — | No | ModNegligence | $100 | $100 |
| 6353749 | Bear River Plant Nevada, CA | Dec 2008 | — | No | ModNegligence | $100 | $100 |
| 6353748 | Bear River Plant Nevada, CA | Dec 2008 | — | No | ModNegligence | $100 | $100 |
| 6353747 | Bear River Plant Nevada, CA | Dec 2008 | — | No | ModNegligence | $100 | $100 |
| 6432252 | Bear River Plant Nevada, CA | Nov 2007 | — | No | ModNegligence | $100 | $100 |
| 6432250 | Bear River Plant Nevada, CA | Nov 2007 | — | No | LowNegligence | $100 | $100 |
| 7958829 | Bear River Plant Nevada, CA | May 2007 | — | No | ModNegligence | $100 | $100 |
| 7958828 | Bear River Plant Nevada, CA | May 2007 | — | No | ModNegligence | $100 | $100 |
| 6337070 | Bear River Plant Nevada, CA | Apr 2002 | — | Yes | ModNegligence | $90 | $90 |
| 6337100 | Bear River Plant Nevada, CA | Jun 2002 | — | Yes | ModNegligence | $66 | $66 |
| 6393316 | Bear River Plant Nevada, CA | Oct 2006 | — | No | ModNegligence | $60 | $60 |
| 6393229 | Bear River Plant Nevada, CA | May 2006 | — | No | ModNegligence | $60 | $60 |
| 6370013 | Bear River Plant Nevada, CA | Feb 2006 | — | No | ModNegligence | $60 | $60 |
| 6366780 | Bear River Plant Nevada, CA | May 2005 | — | No | ModNegligence | $60 | $60 |
| 6366681 | Bear River Plant Nevada, CA | Oct 2004 | — | No | ModNegligence | $60 | $60 |
| 6348522 | Bear River Plant Nevada, CA | Jul 2003 | — | No | ModNegligence | $60 | $60 |
| 6337102 | Bear River Plant Nevada, CA | Jun 2002 | — | No | ModNegligence | $55 | $55 |
| 6337101 | Bear River Plant Nevada, CA | Jun 2002 | — | No | ModNegligence | $55 | $55 |
| 6337069 | Bear River Plant Nevada, CA | Apr 2002 | — | No | ModNegligence | $55 | $55 |
| 6366781 | Bear River Plant Nevada, CA | May 2005 | — | Yes | LowNegligence | — | — |
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 HANSEN BROS. ENTERPRISES. 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 HANSEN BROS. ENTERPRISES. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for HANSEN BROS. ENTERPRISES. Verify directly with Environmental Protection Agency →
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for HANSEN BROS. ENTERPRISES. Verify directly with UVA Corporate Prosecution Registry →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2026-02-13 | Planned | 2 | — | $605 | |
| 2024-05-09 | Planned | 1 | — | $5,000 | |
| 2022-03-18 | Planned | 2 | — | $700 | |
| 2019-04-22 | Planned | 2 | — | $750 | |
| 2018-04-24 | Planned | 3 | — | $875 | |
| 2014-07-08 | Planned | 0 | — | $0 | |
| 2014-01-13 | Planned | 0 | — | $0 | |
| 2013-01-14 | Planned | 0 | — | $0 | |
| 2012-08-30 | Planned | 0 | — | $0 | |
| 2011-11-03 | Planned | 1 | — | $0 | |
| 2011-08-25 | Accident | 0 | — | $0 | |
| 2011-07-14 | Planned | 0 | — | $0 | |
| 2010-10-12 | Planned | 0 | — | $0 | |
| 2010-05-18 | Planned | 0 | — | $0 | |
| 2009-06-17 | Planned | 0 | — | $0 | |
| 2008-10-28 | Planned | 1 | — | $225 | |
| 2008-07-22 | Planned | 0 | — | $0 | |
| 2007-06-06 | Complaint | 0 | — | $0 | |
| 2007-05-18 | Planned | 0 | — | $0 | |
| 2007-04-05 | Planned | 2 | — | $730 | |
| 2006-05-24 | Planned | 3 | — | $1,120 | |
| 2006-03-28 | Planned | 5 | — | $1,645 | |
| 2005-04-14 | Planned | 1 | — | $0 | |
| 2005-04-13 | Planned | 2 | — | $150 | |
| 2001-01-24 | Planned | 1 | — | $0 | |
| 2000-10-16 | Planned | 0 | — | $0 | |
| 2000-06-06 | Referral | 1 | — | $250 | |
| 1999-09-15 | Planned | 0 | — | $0 | |
| 1998-01-23 | Planned | 0 | — | $0 | |
| 1996-08-20 | Planned | 1 | — | $0 | |
| 1995-08-17 | Planned | 0 | — | $0 | |
| 1995-07-13 | Unprogrammed Related | 0 | — | $0 | |
| 1988-08-15 | Planned | 0 | — | $0 | |
| 1988-08-15 | Planned | 0 | — | $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:
- HUMBOLDT REDWOOD COMPANY LLCSCOTIA — 4 federal enforcement records
- CALAVERAS MATERIALS, INC.MERCED — 4 federal enforcement records
- BCJ SAND & ROCK, INC.OROVILLE — 4 federal enforcement records
- GRANITE ROCK COMPANYHOLLISTER — 3 federal enforcement records
- CEMEX, INC.FRIANT — 3 federal enforcement records
- BCJ SAND AND ROCK, INCSACRAMENTO — 3 federal enforcement records
- CALPORTLAND COMPANYMOORPARK — 3 federal enforcement records
- GRANITE CONSTRUCTION COMPANYLLANO — 3 federal enforcement records
- CALMAT COBAKERSFIELD — 3 federal enforcement records
- PYRAMID CONSTRUCTION AND AGGREGATES, INC.HEBER — 3 federal enforcement records
Related searches
- Construction Sand and Gravel MiningAll employers in this industry
- Employers in CAState-wide enforcement data
- Construction Sand and in CAIndustry × state cross-filter
About this data
This profile aggregates federal enforcement records on HANSEN BROS. ENTERPRISES 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 HANSEN BROS. ENTERPRISES's OSHA violation history?
- HANSEN BROS. ENTERPRISES has 34 OSHA inspections on record with 28 violations and $12,050 in total penalties.
- How does HANSEN BROS. ENTERPRISES's safety record compare to its industry?
- HANSEN BROS. ENTERPRISES operates in the construction sand and gravel mining industry. The industry average Total Recordable Incident Rate (TRIR) is 1.5. HANSEN BROS. ENTERPRISES's self-reported DART rate is 6.11 compared to an industry average of 1.