Establishment profile
MT GAINES ROCK
7176 MT GAINES RD, HORNITOS, CA, 95325
212399 — All Other Nonmetallic Mineral Mining
Summary
MT GAINES ROCK has accumulated 1 OSHA violation across 6 inspections over 23 years of recorded history.
The establishment sits in the 31st percentile for violations within its industry-state peer group of 1,680 employers. Inspection frequency runs at the 75th percentile. The most recent enforcement activity was recorded 1 year ago.
Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
MT GAINES ROCK 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, CPSC product recalls, or NHTSA vehicle recalls.
OSHA workplace safety
17% 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.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 462 M04 | 1 | 1 | — | May 2009 | May 2009 |
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: 1,680 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 MT GAINES ROCK. 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 MT GAINES ROCK. Verify directly with Occupational Safety and Health Administration →
Activity timeline
Most recent federal enforcement activity recorded 1 year ago. Data on this page is refreshed weekly.
Wage & Hour Division (WHD)
No WHD wage, overtime, or child-labor enforcement cases on file for MT GAINES ROCK. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in CA — for MT GAINES ROCK, 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 MT GAINES ROCK 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. 52 citations · 4S&S · $6,794 proposed / $5,737 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 5102255 | MT. GAINES MINE Mariposa, CA | May 2025 | — | Yes | ModNegligence | $407 | $407 |
| 8879606 | MT. GAINES MINE Mariposa, CA | Jun 2016 | — | Yes | ModNegligence | $276 | $276 |
| 6489349 | MT. GAINES MINE Mariposa, CA | Feb 2010 | — | Yes | ModNegligence | $263 | $263 |
| 5106662 | MT. GAINES MINE Mariposa, CA | Jun 2026 | — | No | LowNegligence | $151 | — |
| 5106661 | MT. GAINES MINE Mariposa, CA | Jun 2026 | — | No | LowNegligence | $151 | — |
| 5106622 | MT. GAINES MINE Mariposa, CA | Mar 2026 | — | No | HighNegligence | $151 | — |
| 9890921 | MT. GAINES MINE Mariposa, CA | Feb 2026 | — | No | ModNegligence | $151 | — |
| 5106603 | MT. GAINES MINE Mariposa, CA | Feb 2026 | — | No | LowNegligence | $151 | — |
| 5106602 | MT. GAINES MINE Mariposa, CA | Feb 2026 | — | No | LowNegligence | $151 | — |
| 5106601 | MT. GAINES MINE Mariposa, CA | Feb 2026 | — | No | LowNegligence | $151 | — |
| 5102254 | MT. GAINES MINE Mariposa, CA | May 2025 | — | No | LowNegligence | $151 | $151 |
| 5102253 | MT. GAINES MINE Mariposa, CA | May 2025 | — | No | ModNegligence | $151 | $151 |
| 9999622 | MT. GAINES MINE Mariposa, CA | Aug 2024 | — | No | LowNegligence | $147 | $147 |
| 9619921 | MT. GAINES MINE Mariposa, CA | Sep 2023 | — | No | ModNegligence | $143 | $143 |
| 9619920 | MT. GAINES MINE Mariposa, CA | Sep 2023 | — | No | LowNegligence | $143 | $143 |
| 9619919 | MT. GAINES MINE Mariposa, CA | Sep 2023 | — | No | LowNegligence | $143 | $143 |
| 9619918 | MT. GAINES MINE Mariposa, CA | Sep 2023 | — | No | ModNegligence | $143 | $143 |
| 9234365 | MT. GAINES MINE Mariposa, CA | Aug 2021 | — | No | ModNegligence | $125 | $125 |
| 9502990 | MT. GAINES MINE Mariposa, CA | Mar 2021 | — | No | ModNegligence | $125 | $125 |
| 9502839 | MT. GAINES MINE Mariposa, CA | Jun 2020 | — | No | ModNegligence | $123 | $123 |
| 9502838 | MT. GAINES MINE Mariposa, CA | Jun 2020 | — | No | ModNegligence | $123 | $123 |
| 9502531 | MT. GAINES MINE Mariposa, CA | Mar 2020 | — | No | ModNegligence | $123 | $123 |
| 9437850 | MT. GAINES MINE Mariposa, CA | Aug 2019 | — | No | ModNegligence | $121 | $121 |
| 9377300 | MT. GAINES MINE Mariposa, CA | Dec 2017 | — | No | ModNegligence | $118 | $118 |
| 8879885 | MT. GAINES MINE Mariposa, CA | Aug 2017 | — | No | ModNegligence | $116 | $116 |
| 8785517 | MT. GAINES MINE Mariposa, CA | Sep 2016 | — | No | ModNegligence | $114 | $114 |
| 8879611 | MT. GAINES MINE Mariposa, CA | Jun 2016 | — | No | ModNegligence | $114 | $114 |
| 8879610 | MT. GAINES MINE Mariposa, CA | Jun 2016 | — | No | ModNegligence | $114 | $114 |
| 8879609 | MT. GAINES MINE Mariposa, CA | Jun 2016 | — | No | ModNegligence | $114 | $114 |
| 8879608 | MT. GAINES MINE Mariposa, CA | Jun 2016 | — | No | ModNegligence | $114 | $114 |
| 8879607 | MT. GAINES MINE Mariposa, CA | Jun 2016 | — | No | ModNegligence | $114 | $114 |
| 6353839 | MT. GAINES MINE Mariposa, CA | May 2007 | — | No | HighNegligence | $112 | $112 |
| 8793351 | MT. GAINES MINE Mariposa, CA | Oct 2015 | — | No | ModNegligence | $100 | $100 |
| 8793350 | MT. GAINES MINE Mariposa, CA | Oct 2015 | — | No | ModNegligence | $100 | $100 |
| 8695625 | MT. GAINES MINE Mariposa, CA | Nov 2014 | — | No | ModNegligence | $100 | $100 |
| 8611437 | MT. GAINES MINE Mariposa, CA | Feb 2014 | — | No | LowNegligence | $100 | $100 |
| 8699143 | MT. GAINES MINE Mariposa, CA | Apr 2013 | — | No | ModNegligence | $100 | $100 |
| 8699142 | MT. GAINES MINE Mariposa, CA | Apr 2013 | — | Yes | ModNegligence | $100 | $100 |
| 8699141 | MT. GAINES MINE Mariposa, CA | Apr 2013 | — | No | ModNegligence | $100 | $100 |
| 8603923 | MT. GAINES MINE Mariposa, CA | Nov 2011 | — | No | LowNegligence | $100 | $100 |
| 8603922 | MT. GAINES MINE Mariposa, CA | Nov 2011 | — | No | ModNegligence | $100 | $100 |
| 8603921 | MT. GAINES MINE Mariposa, CA | Nov 2011 | — | No | ModNegligence | $100 | $100 |
| 8561965 | MT. GAINES MINE Mariposa, CA | Feb 2011 | — | No | ModNegligence | $100 | $100 |
| 8561964 | MT. GAINES MINE Mariposa, CA | Feb 2011 | — | No | ModNegligence | $100 | $100 |
| 8561644 | MT. GAINES MINE Mariposa, CA | Jul 2010 | — | No | ModNegligence | $100 | $100 |
| 6489348 | MT. GAINES MINE Mariposa, CA | Feb 2010 | — | No | ModNegligence | $100 | $100 |
| 6443206 | MT. GAINES MINE Mariposa, CA | Mar 2009 | — | No | ModNegligence | $100 | $100 |
| 6353880 | MT. GAINES MINE Mariposa, CA | Aug 2007 | — | No | ModNegligence | $100 | $100 |
| 6353879 | MT. GAINES MINE Mariposa, CA | Aug 2007 | — | No | ModNegligence | $100 | $100 |
| 6353878 | MT. GAINES MINE Mariposa, CA | Aug 2007 | — | No | LowNegligence | $100 | $100 |
| 6353840 | MT. GAINES MINE Mariposa, CA | May 2007 | — | No | ModNegligence | $100 | $100 |
| 6353838 | MT. GAINES MINE Mariposa, CA | May 2007 | — | No | HighNegligence | $100 | $100 |
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 MT GAINES ROCK. 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 MT GAINES ROCK. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for MT GAINES ROCK. 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). 2 facilities.
| Facility | Permits | Status | Inspections | Formal actions | Penalties | Last inspected | ECHO |
|---|---|---|---|---|---|---|---|
MT GAINES ROCK 1 MT GAINES ROAD · HORNITOS, CA, 95325 | Water | No Violation Identified | 0 | 0 | — | — | View → |
MT GAINES ROCK 7176 MT GAINES ROCK · HORNITOS, CA, 95325 | 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.
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2025-01-30 | Planned | 0 | — | $0 | |
| 2014-03-27 | Planned | 0 | — | $0 | |
| 2012-08-01 | Planned | 0 | — | $0 | |
| 2010-10-05 | Planned | 0 | — | $0 | |
| 2009-04-16 | Planned | 1 | — | $0 | |
| 2003-07-31 | 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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- 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
- LAS VEGAS PAVING CORPORATIONMOUNTAIN PASS — 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 MT GAINES ROCK 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 MT GAINES ROCK's OSHA violation history?
- MT GAINES ROCK has 6 OSHA inspections on record with 1 violation and $0 in total penalties.
- How does MT GAINES ROCK's safety record compare to its industry?
- MT GAINES ROCK operates in the all other nonmetallic mineral mining industry. The industry average Total Recordable Incident Rate (TRIR) is 1.5.