Hazardous wastes are generated in the production of nine pesticides: MSMA and cacodylic acid, chlordane, creosote, disulfoton, phorate, toxaphene, 2,4,5-T, 2,4-D, and eth-ylenebisdithiocarbamic acid and its salts. In MSMA and cacodylic acid production, hazardous waste is generated as by-product salts (K031). In chlordane production, hazardous wastes include: wastewater treatment sludge (K032); wastewater and scrub water from the chlorination of cyclopentadiene (K033); filter solids from the filtration of hexachlorocyclopentadiene (K034); and vacuum stripper discharge from the chlordane chlorinator (K097). Wastewater treatment sludges generated in creosote production (K035) are also defined as hazardous waste. Hazardous wastes from the production of disulfoton are still bottoms from toluene reclamation distillation (K036), and wastewater treatment sludges (K037). Phorate production generates hazardous wastes from washing and stripping wastewater (K038), wastewater treatment sludge (K040), and filter cake from filtration of diethylphospho-rodithioic acid (K039).

Wastewater treatment sludge (K041) and untreated process wastewater (K098) from toxaphene production and heavy ends, or distillation residues from tetra-chlorobenzene in 2,4,5-T production (K042) are hazardous wastes. Similarly, 2,6-dichlorophenol waste (K043) and untreated wastewater (K099) from 2,4-D production are hazardous wastes.

Hazardous wastes from the production of ethylenebis-dithiocarbamic acid and its salts are: process wastewaters (including supernates, filtrates, and washwaters) (K123); reactor vent scrubber water (K124); filtration, evaporation, and centrifugation solids (K125); and baghouse dust and floor sweepings in milling and packaging operations (K126).

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