Establishment profile
TWIN MOUNTAIN ROCK VENTURE, LLC.
1000 CINDER ROAD, LITTLE LAKE, CA, 93542
212399 — All Other Nonmetallic Mineral Mining
Summary
TWIN MOUNTAIN ROCK VENTURE, LLC. has accumulated 14 OSHA violations across 6 inspections over 30 years of recorded history, with $2,420 in total assessed penalties.
The establishment sits in the 91st percentile for violations within its industry-state peer group of 1,687 employers. Inspection frequency runs at the 75th percentile. The most recent enforcement activity was recorded 3 years ago.
Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
TWIN MOUNTAIN ROCK VENTURE, LLC. 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
83% 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. 13 distinct standards shown · 14 citations in this view · $2,420 in penalties.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 4851(E)(2) | 2 | 2 | $1,010 | Aug 2018 | Apr 2021 |
| 4851(D)(2) | 1 | 1 | $185 | Aug 2018 | Aug 2018 |
| 7016(I) | 1 | 1 | $150 | Aug 2018 | Aug 2018 |
| 3942(A) | 1 | 1 | $150 | Nov 2016 | Nov 2016 |
| 4839(A)(8) | 1 | 1 | $130 | Dec 2022 | Dec 2022 |
| 4838(A) | 1 | 1 | $130 | Dec 2022 | Dec 2022 |
| 3209(A) | 1 | 1 | $130 | Dec 2022 | Dec 2022 |
| 3943(C) | 1 | 1 | $130 | Oct 2019 | Oct 2019 |
| 3702(M) | 1 | 1 | $130 | Oct 2019 | Oct 2019 |
| 3366(A) | 1 | 1 | $125 | Nov 2016 | Nov 2016 |
| 3395(I) | 1 | 1 | $100 | Nov 2016 | Nov 2016 |
| 7181(C) | 1 | 1 | $50 | Nov 2016 | Nov 2016 |
| 3234(E)(6) | 1 | 1 | — | Aug 2018 | Aug 2018 |
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 most other employers in NAICS 2123 within CA. Peer group: 1,687 employers. This establishment has 14 OSHA violations; peer median is 2.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for TWIN MOUNTAIN ROCK VENTURE, LLC.. 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 TWIN MOUNTAIN ROCK VENTURE, LLC.. Verify directly with Occupational Safety and Health Administration →
Activity timeline
No federal enforcement activity has been recorded against this establishment in 3+ years. Most recent activity: 3 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 TWIN MOUNTAIN ROCK VENTURE, LLC.. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in CA — for TWIN MOUNTAIN ROCK VENTURE, LLC., 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 TWIN MOUNTAIN ROCK VENTURE, LLC. 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. 66 citations · 14S&S · $10,828 proposed / $10,663 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 9506595 | Twin Mountain Rock Inyo, CA | Nov 2021 | — | Yes | HighNegligence | $1,089 | $1,089 |
| 8989100 | Twin Mountain Rock Inyo, CA | May 2016 | — | Yes | HighNegligence | $873 | $873 |
| 8996817 | Twin Mountain Rock Inyo, CA | May 2017 | — | Yes | LowNegligence | $330 | $330 |
| 9432769 | Twin Mountain Rock Inyo, CA | Jun 2021 | — | Yes | ModNegligence | $328 | $328 |
| 9500266 | Twin Mountain Rock Inyo, CA | Nov 2019 | — | Yes | ModNegligence | $319 | $319 |
| 9500265 | Twin Mountain Rock Inyo, CA | Nov 2019 | — | Yes | ModNegligence | $319 | $319 |
| 7983701 | Twin Mountain Rock Inyo, CA | Aug 2000 | — | Yes | ModNegligence | $224 | $224 |
| 7983700 | Twin Mountain Rock Inyo, CA | Aug 2000 | — | Yes | ModNegligence | $224 | $224 |
| 8996288 | Twin Mountain Rock Inyo, CA | Jan 2017 | — | No | LowNegligence | $220 | $220 |
| 8996287 | Twin Mountain Rock Inyo, CA | Jan 2017 | — | No | LowNegligence | $220 | $220 |
| 8996286 | Twin Mountain Rock Inyo, CA | Jan 2017 | — | No | LowNegligence | $220 | $220 |
| 9684367 | Twin Mountain Rock Inyo, CA | May 2023 | — | Yes | LowNegligence | $167 | $167 |
| 9684365 | Twin Mountain Rock Inyo, CA | May 2023 | — | Yes | LowNegligence | $167 | $167 |
| 5165136 | Twin Mountain Rock Inyo, CA | Feb 2026 | — | No | HighNegligence | $165 | — |
| 9507999 | Twin Mountain Rock Inyo, CA | Mar 2025 | — | No | LowNegligence | $151 | $151 |
| 9500571 | Twin Mountain Rock Inyo, CA | Aug 2024 | — | No | ModNegligence | $147 | $147 |
| 9500570 | Twin Mountain Rock Inyo, CA | Aug 2024 | — | No | ModNegligence | $147 | $147 |
| 9500569 | Twin Mountain Rock Inyo, CA | Aug 2024 | — | No | LowNegligence | $147 | $147 |
| 9500568 | Twin Mountain Rock Inyo, CA | Aug 2024 | — | No | LowNegligence | $147 | $147 |
| 9500567 | Twin Mountain Rock Inyo, CA | Aug 2024 | — | Yes | LowNegligence | $147 | $147 |
| 9500566 | Twin Mountain Rock Inyo, CA | Aug 2024 | — | No | LowNegligence | $147 | $147 |
| 9500565 | Twin Mountain Rock Inyo, CA | Aug 2024 | — | No | ModNegligence | $147 | $147 |
| 9500564 | Twin Mountain Rock Inyo, CA | Aug 2024 | — | No | LowNegligence | $147 | $147 |
| 9500563 | Twin Mountain Rock Inyo, CA | Aug 2024 | — | No | LowNegligence | $147 | $147 |
| 9509449 | Twin Mountain Rock Inyo, CA | Mar 2024 | — | No | LowNegligence | $147 | $147 |
| 9432768 | Twin Mountain Rock Inyo, CA | Jun 2021 | — | Yes | LowNegligence | $146 | $146 |
| 9684366 | Twin Mountain Rock Inyo, CA | May 2023 | — | No | ModNegligence | $143 | $143 |
| 9681695 | Twin Mountain Rock Inyo, CA | Dec 2022 | — | No | LowNegligence | $143 | $143 |
| 9681694 | Twin Mountain Rock Inyo, CA | Dec 2022 | — | No | LowNegligence | $143 | $143 |
| 9681693 | Twin Mountain Rock Inyo, CA | Dec 2022 | — | No | LowNegligence | $143 | $143 |
| 9681531 | Twin Mountain Rock Inyo, CA | Jul 2022 | — | No | LowNegligence | $133 | $133 |
| 9681530 | Twin Mountain Rock Inyo, CA | Jul 2022 | — | No | LowNegligence | $133 | $133 |
| 9506594 | Twin Mountain Rock Inyo, CA | Nov 2021 | — | No | HighNegligence | $125 | $125 |
| 9506593 | Twin Mountain Rock Inyo, CA | Nov 2021 | — | No | ModNegligence | $125 | $125 |
| 9506592 | Twin Mountain Rock Inyo, CA | Nov 2021 | — | No | LowNegligence | $125 | $125 |
| 9500361 | Twin Mountain Rock Inyo, CA | May 2020 | — | No | LowNegligence | $123 | $123 |
| 9500360 | Twin Mountain Rock Inyo, CA | May 2020 | — | No | HighNegligence | $123 | $123 |
| 9500359 | Twin Mountain Rock Inyo, CA | May 2020 | — | No | LowNegligence | $123 | $123 |
| 9500362 | Twin Mountain Rock Inyo, CA | Jan 2020 | — | No | HighNegligence | $123 | $123 |
| 9500264 | Twin Mountain Rock Inyo, CA | Nov 2019 | — | No | LowNegligence | $121 | $121 |
| 9500063 | Twin Mountain Rock Inyo, CA | Jul 2019 | — | No | ModNegligence | $121 | $121 |
| 9375386 | Twin Mountain Rock Inyo, CA | Feb 2019 | — | No | ModNegligence | $121 | $121 |
| 9375385 | Twin Mountain Rock Inyo, CA | Feb 2019 | — | No | ModNegligence | $121 | $121 |
| 9374707 | Twin Mountain Rock Inyo, CA | Jun 2018 | — | No | ModNegligence | $118 | $118 |
| 8996168 | Twin Mountain Rock Inyo, CA | Dec 2017 | — | No | ModNegligence | $118 | $118 |
| 8996167 | Twin Mountain Rock Inyo, CA | Dec 2017 | — | No | ModNegligence | $118 | $118 |
| 8996289 | Twin Mountain Rock Inyo, CA | Jan 2017 | — | No | LowNegligence | $116 | $116 |
| 8989102 | Twin Mountain Rock Inyo, CA | May 2016 | — | Yes | LowNegligence | $100 | $100 |
| 8989101 | Twin Mountain Rock Inyo, CA | May 2016 | — | No | ModNegligence | $100 | $100 |
| 8989099 | Twin Mountain Rock Inyo, CA | May 2016 | — | No | HighNegligence | $100 | $100 |
| 8989098 | Twin Mountain Rock Inyo, CA | May 2016 | — | No | HighNegligence | $100 | $100 |
| 8871937 | Twin Mountain Rock Inyo, CA | Jan 2016 | — | No | LowNegligence | $100 | $100 |
| 8871882 | Twin Mountain Rock Inyo, CA | Sep 2015 | — | No | ModNegligence | $100 | $100 |
| 8871516 | Twin Mountain Rock Inyo, CA | Jun 2015 | — | No | LowNegligence | $100 | $100 |
| 8871515 | Twin Mountain Rock Inyo, CA | Jun 2015 | — | No | LowNegligence | $100 | $100 |
| 8871514 | Twin Mountain Rock Inyo, CA | Jun 2015 | — | No | LowNegligence | $100 | $100 |
| 8871513 | Twin Mountain Rock Inyo, CA | Jun 2015 | — | No | LowNegligence | $100 | $100 |
| 7960057 | Twin Mountain Rock Inyo, CA | Jul 2001 | — | Yes | ModNegligence | $97 | $97 |
| 6340441 | Twin Mountain Rock Inyo, CA | May 2002 | — | No | ModNegligence | $55 | $55 |
| 6340440 | Twin Mountain Rock Inyo, CA | May 2002 | — | No | LowNegligence | $55 | $55 |
| 7960056 | Twin Mountain Rock Inyo, CA | Jul 2001 | — | No | LowNegligence | $55 | $55 |
| 7983704 | Twin Mountain Rock Inyo, CA | Aug 2000 | — | No | ModNegligence | $55 | $55 |
| 7983702 | Twin Mountain Rock Inyo, CA | Aug 2000 | — | No | ModNegligence | $55 | $55 |
| 7983699 | Twin Mountain Rock Inyo, CA | Aug 2000 | — | No | ModNegligence | $55 | $55 |
| 7983698 | Twin Mountain Rock Inyo, CA | Aug 2000 | — | No | ModNegligence | $55 | $55 |
| 7983697 | Twin Mountain Rock Inyo, CA | Aug 2000 | — | No | ModNegligence | $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 TWIN MOUNTAIN ROCK VENTURE, LLC.. 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 TWIN MOUNTAIN ROCK VENTURE, LLC.. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for TWIN MOUNTAIN ROCK VENTURE, LLC.. Verify directly with Environmental Protection Agency →
EPA-registered facilities
Every EPA ECHO facility associated with this employer, sorted most-significant first. Each row links to EPA’s Detailed Facility Report for the source-of-truth record. Permits column lists active programs (Air = Clean Air Act, Water = Clean Water Act, RCRA = hazardous waste, TRI = Toxics Release Inventory reporting). 1 facility.
| Facility | Permits | Status | Inspections | Formal actions | Penalties | Last inspected | ECHO |
|---|---|---|---|---|---|---|---|
TWIN MOUNTAIN ROCK VENTURE LLC 1000 CINDER RD · LITTLE LAKE, CA, 93542 | RCRA | No Violation Identified | 0 | 0 | — | — | View → |
Source: EPA ECHO (Enforcement and Compliance History Online). Compliance status follows EPA’s own labels (“Sig Violation” = significant noncompliance; QNCR = quarters of noncompliance over the recent reporting window). Inactive facilities (struck through) retain historical enforcement records even after operations ceased.
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for TWIN MOUNTAIN ROCK VENTURE, LLC.. Verify directly with UVA Corporate Prosecution Registry →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2022-10-17 | Planned | 3 | — | $390 | |
| 2021-02-11 | Planned | 1 | — | $900 | |
| 2019-08-26 | Planned | 2 | — | $260 | |
| 2018-07-23 | Planned | 4 | — | $445 | |
| 2016-10-27 | Planned | 4 | — | $425 | |
| 1995-09-05 | 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 all other nonmetallic mineral mining within CA, ordered by federal enforcement volume:
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- CEMEX CALIFORNIA CEMENT LLCVICTORVILLE — 3 federal enforcement records
- RIVERSIDE CEMENT COMPANYRIVERSIDE — 3 federal enforcement records
- CEMEX CALIFORNIA CEMENT LLCAPPLE VALLEY — 3 federal enforcement records
- RIVERSIDE CEMENT COMPANYRIVERSIDE — 3 federal enforcement records
- CEMEX CONSTRUCTION MATERIALS LPLITTLE LAKE — 3 federal enforcement records
- OMYA, INC.LUCERNE VALLEY — 3 federal enforcement records
- KROEKER, INC.PLEASANTON — 3 federal enforcement records
- MP MINE OPERATIONS LLCMOUNTAIN PASS — 2 federal enforcement records
- RIO TINTO MINERALS, INC.WILMINGTON — 2 federal enforcement records
Related searches
- All Other Nonmetallic Mineral MiningAll employers in this industry
- Employers in CAState-wide enforcement data
- All Other Nonmetallic in CAIndustry × state cross-filter
About this data
This profile aggregates federal enforcement records on TWIN MOUNTAIN ROCK VENTURE, LLC. 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 TWIN MOUNTAIN ROCK VENTURE, LLC.'s OSHA violation history?
- TWIN MOUNTAIN ROCK VENTURE, LLC. has 6 OSHA inspections on record with 14 violations and $2,420 in total penalties.
- How does TWIN MOUNTAIN ROCK VENTURE, LLC.'s safety record compare to its industry?
- TWIN MOUNTAIN ROCK VENTURE, LLC. operates in the all other nonmetallic mineral mining industry. The industry average Total Recordable Incident Rate (TRIR) is 1.5.