Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,992Inspections Most recent open 2026-07-18 Last loaded 2026-07-22

OSHA Inspection: DIAMOND MATERIALS LLC

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of DIAMOND MATERIALS LLC in W 3RD STREET & N BROOM STREET, WILMINGTON, DE 19805 (NAICS 237310). OSHA activity number 345699904.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
W 3RD STREET & N BROOM STREET
City
WILMINGTON
State
DE
ZIP
19805
Mailing
242 N JAMES STREET SUITE 102, NEWPORT, DE 19804
Inspection type
Planned (H)
Scope
Partial (B)
Discipline
Safety
Advance notice
No
Union status
B
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
237310
Employees
100
Ownership type
A

7 citations on file for this inspection.

1910.1200 E01

Serious Gravity 5 1 instance 9 exposed
Issued
Jun 16, 2022
Penalty
Initial $8,702 · Current $6,091 Reduced
29 CFR 1910.1200(e)(1): The employer did not develop, implement, and maintain at the workplace a written hazard communication program which describes how the criteria specified in paragraphs (f), (g), & (h) of this section for labels and other forms of warning, safety data sheets, and employee information and training will be met, and which also includes items (i) and (ii) of this subparagraph:  a) W 3rd Street & N Broom Street (Between N Broom St & N Clayton St): On or about December 22, 2021, the employer did not provide or maintain a hazardous communication program available to include labels and other forms of warning, safety data sheets, and employee information and training as required.  ABATEMENT NOTE: A written program shall include description of how the criteria for the following will be met:  1. Labeling and other forms of warning; 2. Material Safety Data Sheets; 3. Employee information and training  Additionally, a list of hazardous chemicals known to be preset in the workplace must be compiled. Methods used to inform employees of the hazards associated with non-routine tasks and the informing of contractors of workplace hazards, including a description of the labeling system used in the facility and of the availability of material safety data sheets, must also be addressed. The written program must be made available upon request.
Recent events (2)
  • — I (S) $6091.4
  • — Z (S) $8702

1910.1200 E01 I

Serious Gravity 5 1 instance 9 exposed
Issued
Jun 16, 2022
Penalty
Initial $0 · Current $0
29 CFR 1910.1200(e)(1)(i): The employer did not compile a list of the hazardous chemicals known to be present using a product identifier that was referenced on the appropriate safety data sheet.  a) W 3rd Street & N Broom Street (Between N Broom St & N Clayton St): On or about December 22, 2021, the employer did not develop nor maintain a chemical inventory list identifying the hazardous chemicals being used by their employees on site.
Recent events (2)
  • — I (S) $0
  • — Z (S) $0

1910.1200 H01

Serious Gravity 5 1 instance 9 exposed
Issued
Jun 16, 2022
Abate by
Jul 14, 2022
Penalty
Initial $0 · Current $0
29 CFR 1910.1200(h)(1): Employees were not provided effective information and training on hazardous chemicals in their work area at the time of their initial assignment and whenever a new hazard that the employees had not been previously trained about was introduced into their work area:  a) W 3rd Street & N Broom Street (Between N Broom St & N Clayton St): On or about December 22, 2021, the employer did not provide training on hazardous chemicals to be used on the site nor did the employer provide SDS sheets for the employees to reference in case there was an exposure.
Recent events (2)
  • — I (S) $0
  • — Z (S) $0

1926.20 B02

Serious Gravity 10 1 instance 8 exposed
Issued
Jun 16, 2022
Penalty
Initial $10,151 · Current $7,106 Reduced
29 CFR 1926.20(b)(2): The employer did not initiate and maintain programs which provided for frequent and regular inspections of the job site, materials and equipment to be made by a competent person(s):  a) W 3rd Street & N Broom Street (Between N Broom St & N Clayton St): On or about December 22, 2021, the employer failed to ensure frequent and regular inspections of the jobsite and equipment were conducted by a person competent in work zone safety standards, exposing employees to struck by/caught in hazards when they performed site preparation work for concrete improvement.
Recent events (2)
  • — I (S) $7105.7
  • — Z (S) $10151

1926.21 B02

Serious Gravity 10 1 instance 9 exposed
Issued
Jun 16, 2022
Penalty
Initial $10,151 · Current $7,106 Reduced
29 CFR 1926.21(b)(2): The employer did not instruct each employee in the recognition and avoidance of unsafe conditions and the regulations applicable to his/her environment to control or eliminate any hazards or other exposure to illness or injury:  a) W 3rd Street & N Broom Street (Between N Broom St & N Clayton St): On or about December 22, 2021, employer failed to provide signs visible to the public while traveling south on N Broom Street to assist traffic in understanding traffic pattern changes due to concrete improvement for ADA compliant sidewalks. Employees were exposed to multiple hazards onsite including but not limited to struck by/ caught in hazards when they performed site preparation work for concrete improvements.
Recent events (2)
  • — I (S) $7105.7
  • — Z (S) $10151

1926.200 G01

Other-than-serious Gravity 10 1 instance 9 exposed
Issued
Jun 16, 2022
Penalty
Initial $10,151 · Current $7,106 Reduced
29 CFR  1926.200(g)(1): Construction areas were not posted with legible traffic signs at points of hazards:  a) W 3rd Street & N Broom Street (Between N Broom St & N Clayton St): On or about December 22, 2021, employer failed to provide signs visible to the public while traveling south on N Broom Street to assist traffic in understanding traffic pattern changes due to concrete improvement for ADA compliant sidewalks.  Employees were exposed to multiple hazards onsite including but not limited to struck by/ caught in hazards when they performed site preparation work for concrete improvements.
Recent events (2)
  • — I (O) $7105.7
  • — Z (S) $10151

1926.200 G02

Other-than-serious Gravity 10 1 instance 9 exposed
Issued
Jun 16, 2022
Penalty
Initial $10,151 · Current $0 Reduced
29 CFR  1926.200(g)(2): Traffic control signs or devices used for protection of construction workers did not conform to Part VI of the Manual on Uniform Traffic Control Devices for Streets and Highways, 2009 Edition, December 2009 (including Revision 1 dated May 2012 and Revision 2 dated May 2012) - see 1926.6:  a) W 3rd Street & N Broom Street (Between N Broom St & N Clayton S): On or about December 22, 2021, signs were not visible to the public while lying on ground and not posted to assist traffic in understanding traffic pattern changes according to Section 6G.07. Employees were exposed to multiple hazards onsite including but not limited to struck by/ caught in hazards when they performed concrete improvements.
Recent events (2)
  • — I (O) $0
  • — Z (S) $10151

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This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 345699904.

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