Establishment profile
CALAVERAS MATERIALS INC
28983 S. MACARTHUR DR., TRACY, CA, 95376
333131 — Mining Machinery and Equipment Manufacturing
Summary
CALAVERAS MATERIALS INC has accumulated 0 OSHA violations across 1 inspection over 18 years of recorded history.
The most recent federal enforcement activity was recorded 18 years ago.
Federal records were found in 2 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, CPSC product recalls, or NHTSA vehicle recalls.
OSHA workplace safety
Peer comparison
Fewer violations than most other employers in NAICS 3331 within CA. Peer group: 154 employers. This establishment has 0 OSHA violations; peer median is 2.
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 →
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 CALAVERAS MATERIALS INC. Verify directly with Occupational Safety and Health Administration →
Activity timeline
No federal enforcement activity has been recorded against this establishment in 18+ years. Most recent activity: 18 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 →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2008-02-05 | Complaint | 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 mining machinery and equipment manufacturing within CA, ordered by federal enforcement volume:
- NORBERG CRUSHINGSAN MARCOS — 2 federal enforcement records
- CENTRAL CONCRETE SUPPLY CO., INC.,BRENTWOOD — 1 federal enforcement record
- COMPASS EQUIPMENT INC.TRACY — 1 federal enforcement record
- ROCK ENGINEERED MACHINERY CO, INC. DBA REMCOLIVERMORE — 1 federal enforcement record
- COASTAL RANGECARLSBAD — 1 federal enforcement record
- SPAULDING EQUIPMENT COPERRIS — 1 federal enforcement record
Related searches
- Mining Machinery and Equipment ManufacturingAll employers in this industry
- Employers in CAState-wide enforcement data
- Mining Machinery and in CAIndustry × state cross-filter
About this data
This profile aggregates federal enforcement records on CALAVERAS MATERIALS INC from every major federal compliance and enforcement source. 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 1 OSHA inspection on record with 0 violations and $0 in total penalties.
- How does CALAVERAS MATERIALS INC's safety record compare to its industry?
- CALAVERAS MATERIALS INC operates in the mining machinery and equipment manufacturing industry. The industry average Total Recordable Incident Rate (TRIR) is 2.5.