Establishment profile
DIAMOND MATERIALS
ROUTE 7 AND KIRKWOOD HIGHWAY, NEWARK, DE, 19713
Operated by Noble Corp plc · 1 of 185 establishments
237310 — Highway, Street, and Bridge Construction
Summary
DIAMOND MATERIALS has accumulated 0 OSHA violations across 1 inspection over 23 years of recorded history.
The most recent federal enforcement activity was recorded 23 years ago.
Federal records were found in 1 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
DIAMOND 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
Peer comparison
Fewer violations than most other employers in NAICS 2373 within DE. Peer group: 4,939 employers. This establishment has 0 OSHA violations; peer median is 2.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for DIAMOND 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
Self-reported events under 29 CFR 1904.39 (24-hour notification of hospitalization, amputation, or loss of an eye) · May 2020
Most frequent event: Other fall to lower level less than 6 feet
Source: OSHA Severe Injury Reports (federal OSHA only; state-plan states like California, Oregon, and Washington maintain their own programs and do not consistently report into this feed).
Severe injury reports — events
Each row is a hospitalization, amputation, or eye-loss event the employer self-reported to OSHA under 29 CFR 1904.39. Narratives are written by the reporting employer.
| Date | Event | Body part | Outcome | |
|---|---|---|---|---|
| May 12, 2020 | Other fall to lower level less than 6 feet | Thigh(s) | Hospitalized |
Source: OSHA Severe Injury Reports. Federal-OSHA jurisdiction only by default; some state-plan programs report voluntarily.
Activity timeline
No federal enforcement activity has been recorded against this establishment in 23+ years. Most recent activity: 23 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 DIAMOND MATERIALS. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in DE — for Noble Corp plc, 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 Noble Corp plc 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. 6 citations · $621 proposed / $621 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 9419692 | Diamond Materials, LLC Kent, DE | Oct 2019 | — | No | LowNegligence | $121 | $121 |
| 8927720 | Diamond Materials, LLC Kent, DE | Apr 2016 | — | No | ModNegligence | $100 | $100 |
| 8917273 | Diamond Materials, LLC Kent, DE | Dec 2015 | — | No | ModNegligence | $100 | $100 |
| 8917272 | Diamond Materials, LLC Kent, DE | Dec 2015 | — | No | HighNegligence | $100 | $100 |
| 8916060 | Diamond Materials, LLC Kent, DE | Aug 2015 | — | No | HighNegligence | $100 | $100 |
| 8916059 | Diamond Materials, LLC Kent, DE | Aug 2015 | — | 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 DIAMOND 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 DIAMOND MATERIALS. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for DIAMOND MATERIALS. Verify directly with Environmental Protection Agency →
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for DIAMOND MATERIALS. Verify directly with UVA Corporate Prosecution Registry →
Federal contracts
No federal contracts are recorded to this specific location.
Consolidated across all USAspending recipient entities under this corporate parent — not attributable to this single location.
Federal contract activity for the parent corporation. Source: USAspending.gov, net obligations. Recipient address is the SAM registration / HQ address, not necessarily the worksite.
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2002-08-01 | Referral | 0 | — | $0 |
Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.
In the news
Part of a larger organization
DIAMOND MATERIALS is one of 185 establishments rolled up under the parent organization Noble Corp plc.
Federal enforcement records on this page represent activity at this specific establishment only. The full enforcement footprint of Noble Corp plc across all 185 of its tracked locations is viewable on the parent profile.
Other employers in this industry and state
Other employers in highway, street, and bridge construction within DE, ordered by federal enforcement volume:
- DIAMOND MATERIALS, LLCWILMINGTON — 2 federal enforcement records
- GREGGO & FERRARA INC.WILMINGTON — 2 federal enforcement records
- GEORGE & LYNCH INC.DOVER — 2 federal enforcement records
- DIAMOND MATERIALS LLCWILMINGTON — 2 federal enforcement records
- GREGGO & FERRARA, INC.NEW CASTLE — 2 federal enforcement records
- GATEWAY CONSTRUCTION, INC.LEWES — 1 federal enforcement record
- A.P. CROLL & SON, INC.GEORGETOWN — 1 federal enforcement record
- MERIT CONSTRUCTION ENGINEERS, INC.WILMINGTON — 1 federal enforcement record
- DAISY CONSTRUCTION COMPANYDOVER — 1 federal enforcement record
- DIAMOND MATERIALSNEW CASTLE — 1 federal enforcement record
Other locations under this parent
Other establishments operated by Noble Corp plc, ordered by federal enforcement volume:
- DIAMOND MATERIALS, LLCWILMINGTON, DE — 2 federal enforcement records
- DIAMOND MATERIALS LLCWILMINGTON, DE — 2 federal enforcement records
- DIAMOND MATERIALS, LLCNEWARK, DE — 2 federal enforcement records
- DIAMOND MATTRESS INCRANCHO DOMINGUEZ, CA — 2 federal enforcement records
- DIAMOND MATERIALS, LLCKENNETT SQUARE, PA — 2 federal enforcement records
- DIAMOND MANUFACTURING OF BLUFFTON, LTDBLUFFTON, OH — 2 federal enforcement records
- DIAMOND M FIRE PROTECTION INCCOTTONWOOD, CA — 1 federal enforcement record
- NOBLE DRILLING SERVICES, INC.BROWNSVILLE, TX — 1 federal enforcement record
- DIAMOND MANUFACTURING COMPANYWYOMING, PA — 1 federal enforcement record
- DIAMOND METAL PRODUCTS INCANDOVER, MN — 1 federal enforcement record
Related searches
- All Noble Corp plc locationsParent rollup
- Highway, Street, and Bridge ConstructionAll employers in this industry
- Employers in DEState-wide enforcement data
- Highway, Street, and in DEIndustry × state cross-filter
About this data
This profile aggregates federal enforcement records on DIAMOND 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. This establishment resolves to the parent rollup Noble Corp plc, which operates 185 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 DIAMOND MATERIALS's OSHA violation history?
- DIAMOND MATERIALS has 1 OSHA inspection on record with 0 violations and $0 in total penalties.
- How does DIAMOND MATERIALS's safety record compare to its industry?
- DIAMOND MATERIALS operates in the highway, street, and bridge construction industry. The industry average Total Recordable Incident Rate (TRIR) is 1.8.