RCRA Hazardous Waste (US, 40 CFR 261)
Spent foundry sand is typically not a federal hazardous waste under RCRA unless it exhibits characteristics or contains hazardous residues from the casting or metal process.
Also searched as: casting sand, moulding sand, spent foundry sand
No federal hazardous waste code
Foundry Sand does not carry a federal RCRA hazardous waste code. It is regulated as solid waste under state and local rules, and specifics depend on your state environmental agency.
Not being federally hazardous does not mean it has no value — clean foundry sand is often a recovered commodity with active buyers.
RCRA classifies waste by source, process, and characteristics — not just material. Pick the row that matches how your foundry sand arises; each coded row links to the full waste code definition under 40 CFR Part 261.
Clean foundry sand
Not RCRA hazardous when free of binding compounds
Sand contaminated with hazardous metals
The metal code governs
Source: 40 CFR Part 261 — Identification and Listing of Hazardous Waste
Shipping to the EU?
See the EWC code for foundry sand.
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