California waste code 725 Liquid with 20 mg/L of mercury or more.

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Based on California Title 22 and DTSC guidance
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Restricted wasteCalifornia restricted wastes
Restricted mercury liquid

Liquid mercury is 20 mg/L or more, so this restricted entry takes priority.

Restricted hazardous waste for liquids with mercury at 20 mg/L or more. A result of exactly 20 mg/L is included.

Is California code 725 hazardous waste?

Not from the code alone. Code 725 is a restricted waste code, so it wins over any non-restricted code that also fits. Choose it after the hazardous waste determination. It doesn't prove the waste is hazardous or decide its federal RCRA status.

If a shipment needs the Uniform Hazardous Waste Manifest, enter 725 in Item 13 for its waste line. Use one California code, plus the federal RCRA codes when the waste is federally hazardous.

RCRA waste meets a federal listing or characteristic and has no federal exclusion. Non-RCRA waste is hazardous under California rules only. California presumes hazardous waste is RCRA unless the generator shows it isn't, so keep that record.

What does California code 725 cover?

This restricted entry is hazardous liquid with a representative mercury result of 20 mg/L or more. A lower result falls outside this entry but doesn't make the waste nonhazardous.

Threshold: 20 mg/L or more in liquid
Official wording: 22 CCR division 4.5, chapter 11, Appendix XII(b)

Is mercury liquid California code 725 or 132?

Code	When it fits
725	Representative mercury is at least 20 mg/L in the liquid.
132	The aqueous liquid holds mercury but stays below the restricted threshold.

The current Appendix XII threshold includes exactly 20 mg/L. DTSC's 2017 guidance says greater than 20 mg/L. If more than one restricted code fits, confirm the single California code for the waste line. The rules give no general tie-breaker.

Which wastes take California code 725?

Waste	When it’s 725
Mercury-bearing waste	Liquid mercury is at or above 20 mg/L

Which codes sit beside California code 725?

Code	What it is
721	Restricted arsenic liquid
722	Restricted cadmium liquid
723	Restricted hexavalent-chromium liquid
724	Restricted lead liquid
726	Restricted nickel liquid
727	Restricted selenium liquid
728	Restricted thallium liquid
731	Restricted PCB liquid