Establishment profile
SHAMROCK MATERIALS
1677 LUCAS VALLEY ROAD, SAN RAFAEL, CA, 94903
327991 — Cut Stone and Stone Product Manufacturing
Summary
SHAMROCK MATERIALS has accumulated 1 OSHA violation across 1 inspection over 22 years of recorded history, with $300 in total assessed penalties.
The establishment sits in the 31st percentile for violations within its industry-state peer group of 580 employers. The most recent enforcement activity was recorded 22 years ago.
Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
SHAMROCK MATERIALS 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
100% 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. 1 distinct standard shown · 1 citation in this view · $300 in penalties.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 342 A | 1 | 1 | $300 | Aug 2003 | Aug 2003 |
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
Below average violations in NAICS 3279 within CA. Peer group: 580 employers. This establishment has 1 OSHA violation; peer median is 3.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for SHAMROCK MATERIALS. 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 SHAMROCK MATERIALS. Verify directly with Occupational Safety and Health Administration →
Activity timeline
No federal enforcement activity has been recorded against this establishment in 22+ years. Most recent activity: 22 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 SHAMROCK MATERIALS. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in CA — for SHAMROCK MATERIALS, 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 SHAMROCK MATERIALS 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. 26 citations · 4S&S · $1,840 proposed / $1,840 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 7987060 | Cloverdale Plant Sonoma, CA | Apr 2000 | — | Yes | ModNegligence | $131 | $131 |
| 6387829 | Cloverdale Plant Sonoma, CA | Nov 2006 | — | Yes | ModNegligence | $114 | $114 |
| 6432932 | Cloverdale Plant Sonoma, CA | Jan 2009 | — | No | ModNegligence | $100 | $100 |
| 6379151 | Cloverdale Plant Sonoma, CA | Sep 2007 | — | No | ModNegligence | $100 | $100 |
| 6379150 | Cloverdale Plant Sonoma, CA | Sep 2007 | — | No | ModNegligence | $100 | $100 |
| 6348806 | Cloverdale Plant Sonoma, CA | Aug 2003 | — | Yes | ModNegligence | $99 | $99 |
| 6358151 | Cloverdale Plant Sonoma, CA | Apr 2004 | — | Yes | ModNegligence | $91 | $91 |
| 6387830 | Cloverdale Plant Sonoma, CA | Nov 2006 | — | No | LowNegligence | $60 | $60 |
| 6387828 | Cloverdale Plant Sonoma, CA | Nov 2006 | — | No | ModNegligence | $60 | $60 |
| 6387827 | Cloverdale Plant Sonoma, CA | Nov 2006 | — | No | ModNegligence | $60 | $60 |
| 6387207 | Cloverdale Plant Sonoma, CA | Apr 2006 | — | No | ModNegligence | $60 | $60 |
| 6387104 | Cloverdale Plant Sonoma, CA | Oct 2005 | — | No | LowNegligence | $60 | $60 |
| 6358552 | Cloverdale Plant Sonoma, CA | May 2005 | — | No | ModNegligence | $60 | $60 |
| 6358551 | Cloverdale Plant Sonoma, CA | May 2005 | — | No | HighNegligence | $60 | $60 |
| 6358506 | Portable Plant Sonoma, CA | Dec 2004 | — | No | HighNegligence | $60 | $60 |
| 6358505 | Cloverdale Plant Sonoma, CA | Dec 2004 | — | No | HighNegligence | $60 | $60 |
| 6358084 | Cloverdale Plant Sonoma, CA | Jan 2004 | — | No | LowNegligence | $60 | $60 |
| 6348805 | Cloverdale Plant Sonoma, CA | Aug 2003 | — | No | ModNegligence | $60 | $60 |
| 6348804 | Cloverdale Plant Sonoma, CA | Aug 2003 | 109(d) | No | ModNegligence | $60 | $60 |
| 6337601 | Portable Plant Sonoma, CA | May 2002 | — | No | ModNegligence | $55 | $55 |
| 7987173 | Cloverdale Plant Sonoma, CA | May 2001 | — | No | LowNegligence | $55 | $55 |
| 7987117 | Cloverdale Plant Sonoma, CA | Dec 2000 | 103(d) | No | LowNegligence | $55 | $55 |
| 7987116 | Cloverdale Plant Sonoma, CA | Dec 2000 | — | No | LowNegligence | $55 | $55 |
| 7987059 | Cloverdale Plant Sonoma, CA | Apr 2000 | — | No | ModNegligence | $55 | $55 |
| 7987058 | Cloverdale Plant Sonoma, CA | Apr 2000 | — | No | LowNegligence | $55 | $55 |
| 7987057 | Cloverdale Plant Sonoma, CA | Apr 2000 | — | No | LowNegligence | $55 | $55 |
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 SHAMROCK MATERIALS. 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 SHAMROCK MATERIALS. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for SHAMROCK MATERIALS. Verify directly with Environmental Protection Agency →
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for SHAMROCK MATERIALS. Verify directly with UVA Corporate Prosecution Registry →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2003-08-12 | Complaint | 1 | — | $300 |
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 cut stone and stone product manufacturing within CA, ordered by federal enforcement volume:
- SAN DIEGO GRANITE, INC.POWAY — 2 federal enforcement records
- STONE ETC INCGARDENA — 2 federal enforcement records
- RANN VALDEZ STONE INC.CONCORD — 2 federal enforcement records
- MGM GRANITE AND MARBLE INCNORTH HOLLYWOOD — 2 federal enforcement records
- AGI MARBLE COMPANY, INC.LOS ANGELES — 2 federal enforcement records
- U.S. GRANITE CORPORATIONRANCHO CORDOVA — 2 federal enforcement records
- SMG STONE COMPANY, INC.SUN VALLEY — 2 federal enforcement records
- MONSCHEIN INDUSTRIES, INC.RIVERBANK — 2 federal enforcement records
- COLD SPRING GRANITERAYMOND — 2 federal enforcement records
- SUPERIOR STONE PRODUCTS, INC.ANAHEIM — 2 federal enforcement records
Related searches
- Cut Stone and Stone Product ManufacturingAll employers in this industry
- Employers in CAState-wide enforcement data
- Cut Stone and in CAIndustry × state cross-filter
About this data
This profile aggregates federal enforcement records on SHAMROCK MATERIALS 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 SHAMROCK MATERIALS's OSHA violation history?
- SHAMROCK MATERIALS has 1 OSHA inspection on record with 1 violation and $300 in total penalties.
- How does SHAMROCK MATERIALS's safety record compare to its industry?
- SHAMROCK MATERIALS operates in the cut stone and stone product manufacturing industry. The industry average Total Recordable Incident Rate (TRIR) is 6.2.