Establishment profile
PETRA DRILLING AND BLASTING INC.
14600 AVE. 420, OROSI, CA, 93647
212321 — Construction Sand and Gravel Mining
Summary
PETRA DRILLING AND BLASTING INC. has accumulated 1 OSHA violation across 1 inspection, with $500 in total assessed penalties.
The establishment sits in the 31st percentile for violations within its industry-state peer group of 1,687 employers. The most recent enforcement activity was recorded 7 months ago.
Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
PETRA DRILLING AND BLASTING 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
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 · $500 in penalties.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 5276(F) | 1 | 1 | $500 | Feb 2026 | Feb 2026 |
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 2123 within CA. Peer group: 1,687 employers. This establishment has 1 OSHA violation; peer median is 2.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for PETRA DRILLING AND BLASTING 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 PETRA DRILLING AND BLASTING INC.. Verify directly with Occupational Safety and Health Administration →
Activity timeline
Most recent federal enforcement activity recorded 7 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 PETRA DRILLING AND BLASTING INC.. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in CA — for PETRA DRILLING AND BLASTING 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 PETRA DRILLING AND BLASTING 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. 9 citations · 1S&S · 9 contractor · $1,319 proposed / $1,319 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 9684694 | LEBEC CEMENT PLANT Kern, CA contractor: Petra Drilling & Blasting | Oct 2023 | — | Yes | LowNegligence | $295 | $295 |
| 9681766 | ORO GRANDE QUARRY San Bernardino, CA contractor: Petra Drilling & Blasting | Jul 2022 | — | No | ModNegligence | $133 | $133 |
| 9681702 | Soledad Mountain Project Kern, CA contractor: Petra Drilling & Blasting | May 2022 | — | No | ModNegligence | $133 | $133 |
| 9681701 | Soledad Mountain Project Kern, CA contractor: Petra Drilling & Blasting | May 2022 | — | No | ModNegligence | $133 | $133 |
| 9681399 | Soledad Mountain Project Kern, CA contractor: Petra Drilling & Blasting | May 2022 | — | No | ModNegligence | $133 | $133 |
| 9500396 | Orosi Quarry Tulare, CA contractor: Petra Drilling & Blasting | Jul 2020 | — | No | HighNegligence | $123 | $123 |
| 9500395 | Orosi Quarry Tulare, CA contractor: Petra Drilling & Blasting | Apr 2020 | — | No | HighNegligence | $123 | $123 |
| 9500394 | Orosi Quarry Tulare, CA contractor: Petra Drilling & Blasting | Jan 2020 | — | No | HighNegligence | $123 | $123 |
| 9500393 | Orosi Quarry Tulare, CA contractor: Petra Drilling & Blasting | Oct 2019 | — | No | HighNegligence | $123 | $123 |
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 PETRA DRILLING AND BLASTING 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 PETRA DRILLING AND BLASTING INC.. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for PETRA DRILLING AND BLASTING INC.. Verify directly with Environmental Protection Agency →
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for PETRA DRILLING AND BLASTING INC.. Verify directly with UVA Corporate Prosecution Registry →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2025-12-12 | Referral | 1 | — | $500 |
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 PETRA DRILLING AND BLASTING 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 PETRA DRILLING AND BLASTING INC.'s OSHA violation history?
- PETRA DRILLING AND BLASTING INC. has 1 OSHA inspection on record with 1 violation and $500 in total penalties.
- How does PETRA DRILLING AND BLASTING INC.'s safety record compare to its industry?
- PETRA DRILLING AND BLASTING INC. operates in the construction sand and gravel mining industry. The industry average Total Recordable Incident Rate (TRIR) is 1.5.