Today, the EPA published a direct final rule (76 FR 34147) and proposal (76 FR 34200) on LDRs for “Carbamate” production wastes and commercial chemical products containing carbamates. As existing test methods are inadequate, and it is difficult to determine the concentration of carbamates at the limits specified for land disposal, this rule modifies the treatment standards for the following hazardous wastes by providing technology-based treatment options as alternatives to constituent concentration limits for certain carbamate chemicals. This rule also removes certain carbamate chemicals from the Universal Treatment Standards table.
This is a direct final rule and self-implementing under HWSA, It will enter into effect in all States on August 12, 2011, unless the EPA receives adverse comment before July 13, 2011, in which case the action will enter into a formal rulemaking period.
The rule modifies the treatment standards for the following hazardous wastes from specific sources: K156 Organic waste (including heavy ends, still bottoms, light ends, spent solvents, filtrates, and decantates) from the production of carbamates and carbamoyl; K157 Wastewaters (including scrubber waters, condenser waters, washwaters, and separation waters) from the production of carbamates and carbamoyl oximes; K158 Bag house dusts and filter/separation solids from the production of carbamates and carbamoyl oximes; K159 Organics from the treatment of thiocarbamate wastes; and K161 Purification solids (including filtration, evaporation, and centrifugation solids), baghouse dust and floor sweepings from the production of dithiocarbamate acids and their salts.
The rule modifies the treatment standards for the following acutely hazardous commercial chemical products: P127 Carbofuran; P128 Mexacarbate; P185 Tirpate; P188 Physostigmine salicylate; P189 Carbosulfan; P190 Metolcarb; P191 Dimetilan; P192 Isolan; P194 Oxamyl; P196 Manganese dimethyldithio-carbamate; P197 Formparanate; P198 Formetanate hydrochloride; P199 Methiocarb; P201 Promecarb; P202 m-Cumenyl methylcarbamate; P203 Aldicarb sulfone; P204 Physostigmine; and P205 Ziram.
The rule modifies the treatment standards for the following hazardous commercial chemical products; U271 Benomyl; U278 Bendiocarb; U279 Carbaryl; U280 Barban; U364 Bendiocarb phenol; U367 Carbofuran phenol; U372 Carbendazim; U373 Propham; U387 Prosulfocarb; U389 Triallate; U394 A2213; U395 Diethylene glycol, dicarbamate; U404 Triethylamine; U409 Thiophanate-methyl; U410 Thiodicarb; U411 Propoxur.
The rule removes the following carbamate chemicals from the Universal Treatment Standards table: Aldicarb sulfone, Barban, Bendiocarb, Benomyl, Butylate, Carbaryl, Carbenzadim, Carbofuran, Carbofuran phenol, Carbosulfan, m-Cumenyl methylcarbamate, Dithiocarbamates (total), EPTC (Eptam), Formetanate hydrochloride, Methiocarb, Methomyl, Metolcarb, Mexacarbate, Molinate, Oxamyl, Pebulate, Physostigmine, Physostigmine salicylate, Promecarb, Propham, Propoxur, Prosulfocarb, Thiodicarb, Thiophanate-methyl, Triallate, Triethylamin, and Vemolate.
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