CMC Steel Sc
310 New State Rd, Cayce, SC 29033, Lexington County
A manufacturing facility in Cayce, South Carolina, listed in EPA records under iron and steel mills and ferroalloy manufacturing (NAICS 331110) and also ground or treated mineral and earth manufacturing and all other miscellaneous nonmetallic mineral product manufacturing. It is one of 2,359 active manufacturing facilities in EPA records in South Carolina.
- Industry
- Primary metals
- NAICS 331
- TRI reporter
- Yes
- Inspections, 5 yr
- 4
- EPA registry ID
- 110000351887
- Revised
- November 1, 2026
What's made here
- Iron and Steel Mills and Ferroalloy Manufacturing (NAICS 331110)
- Ground or Treated Mineral and Earth Manufacturing (NAICS 327992)
- All Other Miscellaneous Nonmetallic Mineral Product Manufacturing (NAICS 327999)
- Fabricated Structural Metal Manufacturing (NAICS 332312)
Public EPA records
| Toxics Release Inventory | Reports to the TRI (facility ID 29033MSDVT31NEW, 29033WNLCT310NE, 29171SPRYF31NEW). |
|---|---|
| Clean Air Act | Listed as a minor source of air emissions. |
| Clean Water Act | A non-major water discharge permit (NPDES). |
| Hazardous waste (RCRA) | Listed as a large quantity generator of hazardous waste (1,000 kg or more a month); and a site with a past hazardous waste treatment, storage or disposal unit (legacy TSDF). |
| Greenhouse gas reporting | Reports to the Greenhouse Gas Reporting Program. |
| Inspections | 4 in the last five years; most recent May 21, 2025. |
EPA ECHO, November 1, 2026; not a rating. EPA report ยท About these records