California Code of Regulations
Title 22 - Social Security
Division 4.5 - Environmental Health Standards for the Management of Hazardous Waste
Chapter 11 - Identification and Listing of Hazardous Waste
Article 5 - Categories of Hazardous Waste
Section 66261.113 - Total Threshold Limit Concentration Values of Persistent and Bioaccumulative Toxic Substances in Extremely Hazardous Wastes
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
(a) Any waste containing a substance listed in subsection (b) of this section at a concentration equal to or exceeding its listed total threshold limit concentration is an extremely hazardous waste.
(b) List of Persistent and Bioaccumulative Toxic Substances and Their Total Threshold Limit Concentration (TTLC) Values:
| Substance | TTLC (Wet-Weight in mg/kg) |
| Aldrin | 140 |
| Arsenic and/or arsenic compounds | 50,000 (as As) |
| Beryllium and/or beryllium compounds* | 7,500 (as Be) |
| Cadmium and/or cadmium compounds* | 10,000 (as Cd) |
| Chlordane | 250 |
| 2,4-Dichlorophenoxyacetic acid | 10,000 |
| Dieldrin | 800 |
| Dioxin (2,3,7,8-TCDD) | 1 |
| Endrin | 20 |
| Heptachlor | 470 |
| Kepone | 2,100 |
| Lead compounds, organic | 1,300 (dry weight basis; as Pb) |
| Lindane | 400 |
| Mercury and/or mercury compounds | 2,000 (as Hg) |
| Mirex | 2,100 |
| Polychlorinated biphenyls (PCBs) | 5,000 |
| Selenium and/or selenium compounds* | 10,000 (as Se) |
| Thallium and/or thallium compounds* | 70,000 (as Tl) |
| Toxaphene | 500 |
| 2,4,5-Trichlorophenoxypropionic acid | 1,000 |
* In the case of elemental metals, the specified concentration limits apply only if the metals are in a friable, powdered or finely divided state.
1. New section filed 5-24-91; effective 7-1-91 (Register 91, No. 22).
Note: Authority cited: Sections 208 and 25141, Health and Safety Code. Reference: Sections 25115, 25117 and 25141, Health and Safety Code.
