722

Liquids with cadmium >= 100 mg/l

Waste Family

California Restricted Wastes

Waste Code

722

Regulation

22 CCR App. XII

Where code 722 applies

California waste codes come from 22 CCR Division 4.5, Chapter 11, Appendix XII. A California code is required on the hazardous waste manifest for every load generated in or shipped into California — even for wastes that are hazardous only under California law and carry no federal code.

RCRA-regulated streams list a federal RCRA waste code on the manifest alongside code 722.

Related california restricted wastes codes

Liquids and solids over specific constituent thresholds (cyanides, arsenic, cadmium, chromium VI, lead, mercury, nickel, selenium, thallium, PCBs, halogenated organics), strong acids and potential dioxin wastes. Restricted from land disposal.

711Liquids with cyanides >= 1000 mg/l 721Liquids with arsenic >= 500 mg/l 723Liquids with chromium (VI) >= 500 mg/l 724Liquids with lead >= 500 mg/l 725Liquids with mercury >= 20 mg/l 726Liquids with nickel >= 134 mg/l 727Liquids with selenium >= 100 mg/l 728Liquids with thallium >= 130 mg/l

All California waste codes

Where can a 722 stream go?

Recognized recovery routes for this waste family, ranked by typical recovery tier. Which route fits depends on your specific stream — composition, volume and region.

Metals recovery (HTMR / hydrometallurgical)

Medium recovery

Metal-bearing streams route to high temperature metals recovery or hydrometallurgical processing, where the contained metals are extracted and returned to commerce as secondary raw material.

40 CFR 268.42 Table 1 — HTMR technology standard

Specialist treatment below restriction thresholds

Specialist handling

California restricted wastes must be treated below the constituent thresholds before land disposal; treatment residues with metal value can continue to metals recovery.

40 CFR 268.40 — LDR treatment standards

These are the typical routes for california restricted wastes. Your stream's actual options depend on its composition and where it sits.

Get the ranked options for your stream

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