California aqueous waste codes Water-based liquids, from caustic baths to restricted metal & cyanide liquids.

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Aqueous waste codes 19

Inorganics
Alkaline liquid with listed metals
When to use 121
Inorganics
Alkaline liquid without listed metals
When to use 122
Inorganics
Other alkaline liquid
When to use 123
Inorganics
Reactive-anion water-based liquid
When to use 131
Inorganics
Metal-bearing water-based liquid
When to use 132
Inorganics
High-organic water-based liquid
When to use 133
Inorganics
Low-organic water-based liquid
When to use 134
Inorganics
Other water-based hazardous liquid
When to use 135

Alkaline liquids are 121 to 123 and water-based liquids 131 to 135. Restricted liquids start at 711 for cyanide.

Which California codes cover aqueous waste?

131 covers specified reactive anions and 132 covers metals. 133 has organic residues of 10% or more, 134 has less than 10%, and 135 covers other aqueous solutions.

The codes are 121, 122, 123, 131, 132, 133, 134, 135, 711, 721, 722, 723, 724, 725, 726, 727, 728, 791 and 792.

How do you tell California aqueous waste codes apart?

Go by the formulation and test results. The 121 and 122 pages explain the disputed pH boundaries.

What can change the route for California aqueous waste?

Coolant or cutting fluid that is filtered to extend its useful life can stay outside discarded waste under the state process-stream conditions. The point-source discharge exclusion doesn't cover wastewater held before discharge.

It doesn't cover treatment sludge either.

The classification and shipping rules still apply.

Aqueous waste codes: 19 codes

Each code links to its page.

Aqueous waste codes 19 codes