Establishment profile
MATRIX SERVICE, INC.
DAVIS LAKE, DAVIS DAM, PORTOLA, CA, 94025
Operated by MATRIX SERVICE CO · 1 of 41 establishments
Summary
MATRIX SERVICE, INC. has accumulated 1 OSHA violation across 1 inspection over 28 years of recorded history, with $150 in total assessed penalties.
The establishment sits in the 36th percentile for violations within its industry-state peer group of 119,386 employers. The most recent enforcement activity was recorded 28 years ago.
Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
MATRIX SERVICE, 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 · $150 in penalties.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 1509 C | 1 | 1 | $150 | Sep 1997 | Sep 1997 |
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. Peer group: 119,386 employers. This establishment has 1 OSHA violation; peer median is 1.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for MATRIX SERVICE, INC.. Verify directly with OSHA Injury Tracking Application →
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 MATRIX SERVICE, INC.. Verify directly with Occupational Safety and Health Administration →
Activity timeline
No federal enforcement activity has been recorded against this establishment in 28+ years. Most recent activity: 28 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 MATRIX SERVICE, INC.. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in CA — for MATRIX SERVICE CO, 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 MATRIX SERVICE CO 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 · 9 contractor · $1,008 proposed / $825 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 9430687 | Castle Mountain Mine San Bernardino, CA contractor: Matrix Service Inc | Apr 2020 | — | No | LowNegligence | $123 | — |
| 9432321 | Boron Operations Kern, CA contractor: Matrix Service Inc | Jul 2019 | — | No | HighNegligence | $121 | $121 |
| 9372652 | Permanente Cement Plant & Quarry Santa Clara, CA contractor: Matrix Service Inc | Jan 2018 | — | No | LowNegligence | $118 | $118 |
| 9372649 | Permanente Cement Plant & Quarry Santa Clara, CA contractor: Matrix Service Inc | Jan 2018 | — | No | ModNegligence | $118 | $118 |
| 9377413 | Permanente Cement Plant & Quarry Santa Clara, CA contractor: Matrix Service Inc | Jan 2018 | — | No | LowNegligence | $118 | $118 |
| 9372641 | Permanente Cement Plant & Quarry Santa Clara, CA contractor: Matrix Service Inc | Jan 2018 | — | No | ModNegligence | $118 | $118 |
| 9372227 | Permanente Cement Plant & Quarry Santa Clara, CA contractor: Matrix Service Inc | Jul 2017 | — | No | LowNegligence | $116 | $116 |
| 9372225 | Permanente Cement Plant & Quarry Santa Clara, CA contractor: Matrix Service Inc | Jul 2017 | — | No | LowNegligence | $116 | $116 |
| 6381271 | 3M CORONA PLANT Riverside, CA contractor: Matrix Service Inc | Jan 2006 | — | No | ModNegligence | $60 | — |
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 MATRIX SERVICE, 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 MATRIX SERVICE, INC.. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for MATRIX SERVICE, INC.. Verify directly with Environmental Protection Agency →
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for MATRIX SERVICE, INC.. Verify directly with UVA Corporate Prosecution Registry →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 1997-08-26 | Complaint | 1 | — | $150 |
Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.
In the news
Part of a larger organization
MATRIX SERVICE, INC. is one of 41 establishments rolled up under the parent organization MATRIX SERVICE CO.
Federal enforcement records on this page represent activity at this specific establishment only. The full enforcement footprint of MATRIX SERVICE CO across all 41 of its tracked locations is viewable on the parent profile.
Other locations under this parent
Other establishments operated by MATRIX SERVICE CO, ordered by federal enforcement volume:
- Matrix ServiceOrange, CA — 3 federal enforcement records
- MATRIX SERVICE INCSAN DIEGO, CA — 2 federal enforcement records
- MATRIX SERVICE INCCARSON, CA — 2 federal enforcement records
- MATRIX SERVICE INCWILMINGTON, CA — 2 federal enforcement records
- MATRIX SERVICE INCEL SEGUNDO, CA — 2 federal enforcement records
- MATRIX SERVICE INC.NEWBERRY SPRINGS, CA — 2 federal enforcement records
- MATRIX SERVICE INCPORTLAND, OR — 1 federal enforcement record
- MATRIX SERVICEMT. ENTERPRISE, TX — 1 federal enforcement record
- MATRIX SERVICE INC.ST JAMES, LA — 1 federal enforcement record
- MATRIX SERVICE COMPANYBLAINE, WA — 1 federal enforcement record
Related searches
- All MATRIX SERVICE CO locationsParent rollup
- Employers in CAState-wide enforcement data
About this data
This profile aggregates federal enforcement records on MATRIX SERVICE, 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. This establishment resolves to the parent rollup MATRIX SERVICE CO, which operates 41 establishments in our dataset.
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 MATRIX SERVICE, INC.'s OSHA violation history?
- MATRIX SERVICE, INC. has 1 OSHA inspection on record with 1 violation and $150 in total penalties.