Summary
CALAVERAS MATERIALS INC has accumulated 3 OSHA violations across 3 inspections over 27 years of recorded history, with $412 in total assessed penalties.
The establishment sits in the 67th percentile for violations within its industry-state peer group of 119,381 employers. Inspection frequency runs at the 95th percentile. The most recent enforcement activity was recorded 24 years ago.
Federal records were found in 3 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
CALAVERAS MATERIALS INC 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
67% 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. 3 distinct standards shown · 3 citations in this view · $412 in penalties.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 5021 A02 | 1 | 1 | $300 | Jan 2002 | Jan 2002 |
| 3999 B | 1 | 1 | $112 | Dec 1999 | Dec 1999 |
| 451 B | 1 | 1 | — | Jan 2002 | Jan 2002 |
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
Above average violations. Peer group: 119,381 employers. This establishment has 3 OSHA violations; peer median is 1.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for CALAVERAS MATERIALS 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 CALAVERAS MATERIALS INC. Verify directly with Occupational Safety and Health Administration →
Activity timeline
No federal enforcement activity has been recorded against this establishment in 24+ years. Most recent activity: 24 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 CALAVERAS MATERIALS INC. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in CA — for CALAVERAS MATERIALS 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 CALAVERAS MATERIALS 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 · 58S&S · 97 contractor · $71,160 proposed / $54,463 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 8613314 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Apr 2012 | — | No | LowNegligence | $9,634 | $873 |
| 8611451 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2014 | — | No | ModNegligence | $4,329 | $874 |
| 6387375 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Apr 2011 | — | No | ModNegligence | $4,329 | $3,329 |
| 8873331 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jul 2015 | — | No | LowNegligence | $1,944 | $1,944 |
| 8561938 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Dec 2010 | — | Yes | LowNegligence | $1,944 | $1,650 |
| 9437242 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Apr 2019 | — | Yes | ModNegligence | $1,577 | $1,577 |
| 9437241 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Apr 2019 | — | Yes | ModNegligence | $1,577 | $1,577 |
| 9437240 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Apr 2019 | — | Yes | ModNegligence | $1,577 | $1,577 |
| 8696380 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | May 2013 | — | Yes | ModNegligence | $1,412 | $1,412 |
| 6357887 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | May 2009 | — | Yes | ModNegligence | $1,412 | $1,412 |
| 8613316 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Apr 2012 | — | No | LowNegligence | $1,304 | $117 |
| 6387374 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Apr 2011 | — | No | HighNegligence | $1,304 | $1,304 |
| 6387371 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Apr 2011 | — | Yes | ModNegligence | $1,304 | $1,304 |
| 8568745 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Dec 2010 | — | Yes | LowNegligence | $1,203 | $601 |
| 8568743 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Nov 2010 | — | Yes | ModNegligence | $1,203 | $1,203 |
| 8603931 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Nov 2011 | — | No | ModNegligence | $1,111 | $1,111 |
| 6486688 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2010 | — | No | HighNegligence | $1,026 | $1,026 |
| 7996668 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Apr 2001 | — | Yes | ModNegligence | $993 | $557 |
| 9502514 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Feb 2020 | — | Yes | ModNegligence | $941 | $941 |
| 8873332 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jul 2015 | — | No | ModNegligence | $873 | $873 |
| 8613315 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Apr 2012 | — | No | LowNegligence | $873 | $392 |
| 8613313 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Apr 2012 | — | No | LowNegligence | $873 | $392 |
| 8561940 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Dec 2010 | — | No | ModNegligence | $873 | $873 |
| 8568746 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Dec 2010 | — | No | ModNegligence | $807 | $807 |
| 8568744 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Dec 2010 | — | No | HighNegligence | $807 | $807 |
| 8568742 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Nov 2010 | — | No | HighNegligence | $807 | $807 |
| 9377294 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Dec 2017 | — | Yes | ModNegligence | $768 | $768 |
| 8603934 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Nov 2011 | — | No | ModNegligence | $745 | $745 |
| 9377575 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Oct 2018 | — | Yes | ModNegligence | $691 | $691 |
| 9377574 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Oct 2018 | — | Yes | ModNegligence | $691 | $691 |
| 9433025 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Sep 2018 | — | Yes | ModNegligence | $691 | $691 |
| 6486685 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2010 | — | Yes | ModNegligence | $687 | $687 |
| 9372079 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Aug 2017 | — | Yes | ModNegligence | $677 | $677 |
| 9372003 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Feb 2017 | — | Yes | ModNegligence | $677 | $677 |
| 8613340 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | May 2012 | — | No | ModNegligence | $634 | $634 |
| 6442584 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2008 | — | Yes | ModNegligence | $634 | $634 |
| 8873669 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2016 | — | Yes | ModNegligence | $615 | $615 |
| 8561939 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Dec 2010 | — | Yes | LowNegligence | $585 | $585 |
| 6443188 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Feb 2009 | — | Yes | ModNegligence | $585 | $585 |
| 8874137 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Aug 2016 | — | Yes | ModNegligence | $568 | $568 |
| 8703364 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2014 | — | Yes | ModNegligence | $540 | $540 |
| 9535654 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Aug 2022 | — | No | ModNegligence | $481 | $481 |
| 9535650 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Aug 2022 | — | No | ModNegligence | $481 | $481 |
| 6486687 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2010 | — | Yes | ModNegligence | $460 | $460 |
| 6443431 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Jan 2009 | — | No | ModNegligence | $460 | $460 |
| 6442583 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2008 | — | Yes | ModNegligence | $425 | $425 |
| 6442582 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2008 | — | Yes | ModNegligence | $425 | $425 |
| 8695999 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Dec 2012 | — | No | ModNegligence | $403 | $403 |
| 6387373 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Apr 2011 | — | No | ModNegligence | $392 | $392 |
| 6387372 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Apr 2011 | — | No | ModNegligence | $392 | $392 |
| 9502516 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Feb 2020 | — | Yes | ModNegligence | $378 | $378 |
| 9433124 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Mar 2019 | — | Yes | ModNegligence | $344 | $344 |
| 9502776 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2021 | — | Yes | ModNegligence | $328 | $328 |
| 9437243 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Apr 2019 | — | No | ModNegligence | $319 | $319 |
| 9437239 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Apr 2019 | — | No | ModNegligence | $319 | $319 |
| 9433107 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Feb 2019 | — | Yes | ModNegligence | $319 | $319 |
| 6486690 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2010 | — | No | ModNegligence | $308 | $308 |
| 6486689 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2010 | — | No | ModNegligence | $308 | $308 |
| 6486686 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2010 | — | No | ModNegligence | $308 | $308 |
| 9372049 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2017 | — | Yes | ModNegligence | $305 | $305 |
| 6486582 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Oct 2009 | — | Yes | ModNegligence | $285 | $285 |
| 6486581 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Oct 2009 | — | Yes | ModNegligence | $285 | $285 |
| 7998967 | Blackstone Pit & Mill Madera, CA | Jan 2002 | — | Yes | LowNegligence | $277 | $277 |
| 8611450 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Mar 2014 | — | No | ModNegligence | $263 | $263 |
| 8561937 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Dec 2010 | — | No | ModNegligence | $263 | $263 |
| 8561936 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Dec 2010 | — | No | ModNegligence | $263 | $263 |
| 7998965 | Blackstone Pit & Mill Madera, CA | Jan 2002 | — | Yes | ModNegligence | $242 | $242 |
| 6353944 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Nov 2007 | — | Yes | ModNegligence | $224 | $224 |
| 6353943 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Nov 2007 | — | Yes | ModNegligence | $224 | $224 |
| 6353942 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Nov 2007 | — | Yes | ModNegligence | $224 | $224 |
| 6353941 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Nov 2007 | — | Yes | ModNegligence | $224 | $224 |
| 6353940 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Nov 2007 | — | Yes | ModNegligence | $224 | $224 |
| 6353939 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Nov 2007 | — | Yes | ModNegligence | $224 | $224 |
| 6353938 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Nov 2007 | — | Yes | ModNegligence | $224 | $224 |
| 9535652 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Aug 2022 | — | No | ModNegligence | $215 | $215 |
| 9535651 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Aug 2022 | — | No | ModNegligence | $215 | $215 |
| 9535648 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Aug 2022 | — | No | ModNegligence | $215 | $215 |
| 6341543 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Sep 2003 | — | Yes | ModNegligence | $214 | $214 |
| 9377302 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Dec 2017 | — | Yes | ModNegligence | $208 | $208 |
| 6443430 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Jan 2009 | — | No | ModNegligence | $207 | $207 |
| 9372078 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Aug 2017 | — | Yes | ModNegligence | $204 | $204 |
| 9372077 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Aug 2017 | — | Yes | ModNegligence | $204 | $204 |
| 7996732 | Blackstone Pit & Mill Madera, CA | Jun 2001 | — | Yes | ModNegligence | $196 | $196 |
| 6489276 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Nov 2009 | — | Yes | ModNegligence | $176 | $176 |
| 6489275 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Nov 2009 | — | Yes | ModNegligence | $176 | $176 |
| 6370196 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jul 2009 | — | Yes | ModNegligence | $176 | $176 |
| 6443427 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Jan 2009 | — | No | ModNegligence | $176 | $176 |
| 6443426 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Jan 2009 | — | No | ModNegligence | $176 | $176 |
| 6341544 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Sep 2003 | — | Yes | ModNegligence | $176 | $176 |
| 9502837 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Jun 2020 | — | No | ModNegligence | $171 | $171 |
| 9502515 | Sanger Aggregate Plant Fresno, CA contractor: Calaveras Materials LLC | Feb 2020 | — | No | ModNegligence | $171 | $171 |
| 8703365 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2014 | — | Yes | ModNegligence | $162 | $162 |
| 8703363 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2014 | — | Yes | ModNegligence | $162 | $162 |
| 8703362 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2014 | — | Yes | ModNegligence | $162 | $162 |
| 8703360 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2014 | — | Yes | ModNegligence | $162 | $162 |
| 8703357 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2014 | — | Yes | ModNegligence | $162 | $162 |
| 8703356 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2014 | — | No | HighNegligence | $162 | $162 |
| 8703355 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jun 2014 | — | No | HighNegligence | $162 | $162 |
| 8603954 | Hughson Aggregates Stanislaus, CA contractor: Calaveras Materials LLC | Jan 2012 | — | Yes | ModNegligence | $162 | $162 |
| 8603936 | Merced Aggregates Merced, CA contractor: Calaveras Materials LLC | Dec 2011 | — | No | ModNegligence | $162 | $162 |
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 CALAVERAS MATERIALS INC, not this location alone
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 CALAVERAS MATERIALS INC 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 number | Type | Filed | Closed | Status | Region |
|---|---|---|---|---|---|
| 32-RD-001607 | Representation election | May 2011 | Jun 2011 | Closed | Region 32, Oakland, California |
| 32-CA-023356 | Unfair labor practice | Jul 2007 | Jul 2007 | Closed | Region 32, Oakland, 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 CALAVERAS MATERIALS INC. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for CALAVERAS MATERIALS INC. Verify directly with Environmental Protection Agency →
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for CALAVERAS MATERIALS INC. Verify directly with UVA Corporate Prosecution Registry →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2001-11-08 | Planned | 2 | — | $300 | |
| 1999-12-15 | Programmed Related | 1 | — | $112 | |
| 1998-07-23 | Planned | 0 | — | $0 |
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 CALAVERAS MATERIALS 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 CALAVERAS MATERIALS INC's OSHA violation history?
- CALAVERAS MATERIALS INC has 3 OSHA inspections on record with 3 violations and $412 in total penalties.