California Residual Pesticide Testing

California Residual Pesticide Testing
August 2, 2018 Jill Ellsworth

The state of California requires all cannabis goods batches to be tested for residual pesticide (s) prior to their release for sale to the public. The full list of tests can be found here, on our California Cannabis Testing page.

The required cannabis residual pesticide testing classifies pesticides into two categories.

Category I residual pesticides must be undetected, meaning under .10 µg/g.

Category I Residual Pesticide CAS No.
Aldicarb 116-06-3
Carbofuran 1563-66-2
Chlordane 57-74-9
Chlorfenapyr 122453-73-0
Chlorpyrifos 2921-88-2
Coumaphos 56-72-4
Daminozide 1596-84-5
DDVP (Dichlorvos) 62-73-7
Dimethoate 60-51-5
Ethoprop(hos) 13194-48-4
Etofenprox 80844-07-1
Fenoxycarb 72490-01-8
Fipronil 120068-37-3
Imazalil 35554-44-0
Methiocarb 2032-65-7
Methyl parathion 298-00-0
Mevinphos 7786-34-7
Paclobutrazol 76738-62-0
Propoxur 114-26-1
Spiroxamine 118134-30-8
Thiacloprid 111988-49-9


Category II residual pesticides must be under their respective action levels.

Action Level µg/g
Category II Residual Pesticide CAS No. Inhalable Other
Abamectin 71751-41-2 0.1 0.3
Acephate 30560-19-1 0.1 5
Acequinocyl 57960-19-7 0.1 4
Acetamiprid 135410-20-7 0.1 5
Azoxystrobin 131860-33-8 0.1 40
Bifenazate 149877-41-8 0.1 5
Bifenthrin 82657-04-3 3 0.5
Boscalid 188425-85-6 0.1 10
Captan 133-06-2 0.7 5
Carbaryl 63-25-2 0.5 0.5
Chlorantraniliprole 500008-45-7 10 40
Clofentezine 74115-24-5 0.1 0.5
Cyfluthrin 68359-37-5 2 1
Cypermethrin 52315-07-8 1 1
Diazinon 333-41-5 0.1 0.2
Dimethomorph 110488-70-5 2 20
Etoxazole 153233-91-1 0.1 1.5
Fenhexamid 126833-17-8 0.1 10
Fenpyroximate 111812-58-9 0.1 2
Flonicamid 158062-67-0 0.1 2
Fludioxonil 131341-86-1 0.1 30
Hexythiazox 78587-05-0 0.1 2
Imidacloprid 138261-41-3 5 3
Kresoxim-methyl 143390-89-0 0.1 1
Malathion 121-75-5 0.5 5
Metalaxyl 57837-19-1 2 15
Methomyl 16752-77-5 1 0.1
Myclobutanil 88671-89-0 0.1 9
Naled 300-76-5 0.1 0.5
Oxamyl 23135-22-0 0.5 0.2
Pentachloronitrobenzene 82-68-8 0.1 0.2
Permethrin 52645-53-1 0.5 20
Phosmet 732-11-6 0.1 0.2
Piperonylbutoxide 51-03-6 3 8
Prallethrin 23031-36-9 0.1 0.4
Propiconazole 60207-90-1 0.1 20
Pyrethrins 8003-34-7 0.5 1
Pyridaben 96489-71-3 0.1 3
Spinetoram 187166-15-0, 187166-40-1 0.1 3
Spinosad 131929-60-7, 131929-63-0 0.1 3
Spiromesifen 283594-90-1 0.1 12
Spirotetramat 203313-25-1 0.1 13
Tebuconazole 107534-96-3 0.1 2
Thiamethoxam 153719-23-4 5 4.5
Trifloxystrobin 141517-21-7 0.1 30

 

In addition to residual pesticide testing, California also tests for residual solvents and processing chemicals. Similar to residual pesticides, solvents and processing chemicals are classified in one of two categories.

Category I solvents and processing chemicals must be undetected, meaning under 1.0 µg/g.

 

Category I Residual solvent or processing chemical CAS No.
1,2-Dichloroethane 107-06-2
Benzene 71-43-2
Chloroform 67-66-3
Ethylene oxide 75-21-8
Methylene chloride 75-09-2
Trichloroethylene 79-01-6

 

Category II solvents and processing chemicals must be under their respective action levels.

Category II Residual solvent or processing chemical CAS No. Action Level µg/g
Acetone 67-64-1 1000
Acetonitrile 75-05-8 80
Butane 106-97-8 1000
Ethanol 64-17-5 1000
Ethyl acetate 141-78-6 1000
Ethyl ether 60-29-7 1000
Heptane 142-82-5 1000
Hexane 110-54-3 60
Isopropyl alcohol 67-63-0 1000
Methanol 67-56-1 600
Pentane 109-66-0 1000

 

For more information on the other mandatory tests required by the state of California, check out our article on California Cannabis Testing. Information on retesting and remediation for failed batches can be found on our California Remediation and Retesting page.

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