Hazardous Waste Determination, RCRA Hazardous Waste Regulations 40 CFR 261.4(a)(1) – The RCRA Exclusion for Domestic Sewage Daniel Stoehr September 28, 2013 ← 40 CFR 261.4(a)(5) – The Hazardous Waste Exclusion for In Situ Mining Waste Is a By-Product a Solid Waste When Recycled by Reclamation? →