Data / Workplace safety / Pennsylvania / NTP Marble Inc.
NTP Marble Inc., King of Prussia, PA: 17 OSHA citations, $45,400 in penalties (2023 to 2025)
OSHA recorded 2 inspections at NTP Marble Inc., 475 South Henderson Road, King of Prussia, PA 19406, between December 20, 2023 and July 7, 2025. 2 inspections ended in citations: 17 citations with $72,071 in initial penalties and $45,400 in current penalties. The latest citation was issued December 31, 2025.
SpecStream is the live web data engine for teams and agents. It reads OSHA inspections and citations from the US Department of Labor's enforcement data, and this page is that reading. Ask for the employers you check by industry, state or standard and new inspections and citations arrive in your sheet, CRM, Slack or agent as they are posted.
- Site
- 475 South Henderson Road, King of Prussia, PA 19406
- Industry
- 327991 Cut Stone and Stone Product Manufacturing
- Ownership
- Private
- Employees at the site
- 90 (as recorded at the latest inspection)
- Inspections
- 2, of which 2 with citations
- Citations
- 17
- Penalties
- $72,071 initial, $45,400 current
Inspections
Every inspection OSHA opened at this site since November 3, 2021.
| Opened | Closed | Type | Scope | Focus | Citations | Current penalties | Source |
|---|---|---|---|---|---|---|---|
| July 7, 2025 | Referral | Partial | Safety | 3 | $6,000 | osha.gov | |
| December 20, 2023 | Planned | Partial | Health | 14 | $39,400 | osha.gov |
Citations
One row for each citation, newest first. Gravity is OSHA's level of gravity for serious violations.
| Inspection opened | Standard cited | Standard title | Type | Gravity | Issued | Initial penalty | Current penalty | Source |
|---|---|---|---|---|---|---|---|---|
| July 7, 2025 | 1910.303(g)(1) | General | Other than serious | Not listed | December 31, 2025 | $0 | $0 | osha.gov |
| July 7, 2025 | 1926.21(b)(2) | Safety training and education | Serious | 10 | December 31, 2025 | $0 | $0 | osha.gov |
| July 7, 2025 | OSH Act section 5(a)(1) | General duty clause | Serious | 10 | December 31, 2025 | $9,847 | $6,000 | osha.gov |
| December 20, 2023 | 1904.41(a)(1)(i) | Electronic submission of Employer Identification Number (EIN) and injury and illness records to OSHA | Other than serious | Not listed | June 13, 2024 | $2,074 | $2,000 | osha.gov |
| December 20, 2023 | 1904.40(a) | Providing records to government representatives | Other than serious | Not listed | June 13, 2024 | $2,074 | $0 | osha.gov |
| December 20, 2023 | 1910.1200(h)(1) | Hazard communication | Other than serious | 1 | June 13, 2024 | $0 | $0 | osha.gov |
| December 20, 2023 | 1910.1200(e)(1) | Hazard communication | Other than serious | 5 | June 13, 2024 | $0 | $0 | osha.gov |
| December 20, 2023 | 1910.1053(j)(3)(i) | Respirable crystalline silica | Other than serious | 10 | June 13, 2024 | $0 | $0 | osha.gov |
| December 20, 2023 | 1910.1053(j)(1) | Respirable crystalline silica | Other than serious | 10 | June 13, 2024 | $14,518 | $7,000 | osha.gov |
| December 20, 2023 | 1910.1053(i)(1)(i) | Respirable crystalline silica | Serious | 5 | June 13, 2024 | $10,372 | $10,000 | osha.gov |
| December 20, 2023 | 1910.1053(d)(5) | Respirable crystalline silica | Other than serious | 5 | June 13, 2024 | $10,372 | $0 | osha.gov |
| December 20, 2023 | 1910.134(c)(1) | Respiratory protection | Serious | 10 | June 13, 2024 | $0 | $0 | osha.gov |
| December 20, 2023 | 1910.1053(g)(1)(iii) | Respirable crystalline silica | Serious | 10 | June 13, 2024 | $0 | $0 | osha.gov |
| December 20, 2023 | 1910.1053(f)(2)(i) | Respirable crystalline silica | Other than serious | 10 | June 13, 2024 | $0 | $0 | osha.gov |
| December 20, 2023 | 1910.1053(e)(1) | Respirable crystalline silica | Other than serious | 10 | June 13, 2024 | $0 | $0 | osha.gov |
| December 20, 2023 | 1910.1053(c) | Respirable crystalline silica | Other than serious | 10 | June 13, 2024 | $14,518 | $14,000 | osha.gov |
| December 20, 2023 | 1910.132(d)(2) | General requirements | Serious | 5 | June 13, 2024 | $8,296 | $6,400 | osha.gov |
Also on SpecStream
- All OSHA citations in Other Nonmetallic Mineral Product Manufacturing in Pennsylvania
- OSHA citations in Pennsylvania
- 29 CFR 1910.1053, Respirable crystalline silica: all citations
- 29 CFR 1910.1200, Hazard communication: all citations
- 29 CFR 1926.21, Safety training and education: all citations
Updated November 3, 2026. Read from US Department of Labor, OSHA enforcement data. Public domain (U.S. government work). Penalties are as OSHA records them on the date this page was read and can change after a contest or a settlement. Citations OSHA deleted are left out. Each row links to OSHA's own inspection record. This page uses US Department of Labor data and is not endorsed or certified by the US Department of Labor. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.