California sludge codes Alum, lime, phosphate, sulfur, paint & degreasing sludge.

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California Title 22 and DTSC guidance
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Sludges 9

Sludges
Alum or gypsum sludge
When to use 411
Sludges
Lime sludge
When to use 421
Sludges
Phosphate sludge
When to use 431
Sludges
Sulfur sludge
When to use 441
Sludges
Sludge from degreasing
When to use 451
Sludges
Paint sludge
When to use 461
Sludges
Paper-processing sludge or pulp
When to use 471
Sludges
Tetraethyl-lead sludge
When to use 481

411 alum or gypsum, 421 lime, 431 phosphate, 441 sulfur, 451 degreasing, 461 paint, 471 paper pulp & 481 tetraethyl lead.

Which California codes cover sludge?

The 4xx entries cover named process sludges. Metal sludge (171), oil separator sludge (222) and sewage sludge (321) sit in other categories.

The codes are 411, 421, 431, 441, 451, 461, 471, 481 and 491.

How do you tell California sludge codes apart?

Use the process records and test results to tell them apart.

What can change the route for California sludge?

The industrial wastewater discharge exclusion doesn't cover wastewater that is collected, stored or treated before discharge. It doesn't cover treatment sludge either.

Reclamation alone doesn't exempt sludge. Use a state recycling exclusion only when you can prove every condition.

The classification and shipping rules still apply.

Sludges: 9 codes

Each code links to its page.

Sludges 9 codes