{"data":{"id":"us/40-cfr-117.3","jurisdiction":"us","citation":"40 CFR 117.3","heading":"Determination of reportable quantities.","body":"Each substance in Table 117.3 that is listed in Table 302.4, 40 CFR part 302, is assigned the reportable quantity listed in Table 302.4 for that substance.\nTable 117.3—Reportable Quantities of Hazardous Substances Designated Pursuant to Section 311 of the Clean Water Act\nNote:\nThe first number under the column headed “RQ” is the reportable quantity in pounds. The number in parentheses is the metric equivalent in kilograms. For convenience, the table contains a column headed “Category” which lists the code letters “X”, “A”, “B”, “C”, and “D” associated with reportable quantities of 1, 10, 100, 1000, and 5000 pounds, respectively.\nTable 117.3—Reportable Quantities of Hazardous Substances Designated Pursuant to Section 311 of the Clean Water Act\nMaterial Category RQ in pounds (kilograms)\nAcetaldehyde C 1,000 (454)\nAcetic acid D 5,000 (2,270)\nAcetic anhydride D 5,000 (2,270)\nAcetone cyanohydrin A 10 (4.54)\nAcetyl bromide D 5,000 (2,270)\nAcetyl chloride D 5,000 (2,270)\nAcrolein X 1 (0.454)\nAcrylonitrile B 100 (45.4)\nAdipic acid D 5,000 (2,270)\nAldrin X 1 (0.454)\nAllyl alcohol B 100 (45.4)\nAllyl chloride C 1,000 (454)\nAluminum sulfate D 5,000 (2,270)\nAmmonia B 100 (45.4)\nAmmonium acetate D 5,000 (2,270)\nAmmonium benzoate D 5,000 (2,270)\nAmmonium bicarbonate D 5,000 (2,270)\nAmmonium bichromate A 10 (4.54)\nAmmonium bifluoride B 100 (45.4)\nAmmonium bisulfite D 5,000 (2,270)\nAmmonium carbamate D 5,000 (2,270)\nAmmonium carbonate D 5,000 (2,270)\nAmmonium chloride D 5,000 (2,270)\nAmmonium chromate A 10 (4.54)\nAmmonium citrate dibasic D 5,000 (2,270)\nAmmonium fluoborate D 5,000 (2,270)\nAmmonium fluoride B 100 (45.4)\nAmmonium hydroxide C 1,000 (454)\nAmmonium oxalate D 5,000 (2,270)\nAmmonium silicofluoride C 1,000 (454)\nAmmonium sulfamate D 5,000 (2,270)\nAmmonium sulfide B 100 (45.4)\nAmmonium sulfite D 5,000 (2,270)\nAmmonium tartrate D 5,000 (2,270)\nAmmonium thiocyanate D 5,000 (2,270)\nAmyl acetate D 5,000 (2,270)\nAniline D 5,000 (2,270)\nAntimony pentachloride C 1,000 (454)\nAntimony potassium tartrate B 100 (45.4)\nAntimony tribromide C 1,000 (454)\nAntimony trichloride C 1,000 (454)\nAntimony trifluoride C 1,000 (454)\nAntimony trioxide C 1,000 (454)\nArsenic disulfide X 1 (0.454)\nArsenic pentoxide X 1 (0.454)\nArsenic trichloride X 1 (0.454)\nArsenic trioxide X 1 (0.454)\nArsenic trisulfide X 1 (0.454)\nBarium cyanide A 10 (4.54)\nBenzene A 10 (4.54)\nBenzoic acid D 5,000 (2,270)\nBenzonitrile D 5,000 (2,270)\nBenzoyl chloride C 1,000 (454)\nBenzyl chloride B 100 (45.4)\nBeryllium chloride X 1 (0.454)\nBeryllium fluoride X 1 (0.454)\nBeryllium nitrate X 1 (0.454)\nButyl acetate D 5,000 (2,270)\nButylamine C 1,000 (454)\nn-Butyl phthalate A 10 (4.54)\nButyric acid D 5,000 (2,270)\nCadmium acetate A 10 (4.54)\nCadmium bromide A 10 (4.54)\nCadmium chloride A 10 (4.54)\nCalcium arsenate X 1 (0.454)\nCalcium arsenite X 1 (0.454)\nCalcium carbide A 10 (4.54)\nCalcium chromate A 10 (4.54)\nCalcium cyanide A 10 (4.54)\nCalcium dodecylbenzenesulfonate C 1,000 (454)\nCalcium hypochlorite A 10 (4.54)\nCaptan A 10 (4.54)\nCarbaryl B 100 (45.4)\nCarbofuran A 10 (4.54)\nCarbon disulfide B 100 (45.4)\nCarbon tetrachloride A 10 (4.54)\nChlordane X 1 (0.454)\nChlorine A 10 (4.54)\nChlorobenzene B 100 (45.4)\nChloroform A 10 (4.54)\nChlorosulfonic acid C 1,000 (454)\nChlorpyrifos X 1 (0.454)\nChromic acetate C 1,000 (454)\nChromic acid A 10 (4.54)\nChromic sulfate C 1,000 (454)\nChromous chloride C 1,000 (454)\nCobaltous bromide C 1,000 (454)\nCobaltous formate C 1,000 (454)\nCobaltous sulfamate C 1,000 (454)\nCoumaphos A 10 (4.54)\nCresol B 100 (45.4)\nCrotonaldehyde B 100 (45.4)\nCupric acetate B 100 (45.4)\nCupric acetoarsenite X 1 (0.454)\nCupric chloride A 10 (4.54)\nCupric nitrate B 100 (45.4)\nCupric oxalate B 100 (45.4)\nCupric sulfate A 10 (4.54)\nCupric sulfate, ammoniated B 100 (45.4)\nCupric tartrate B 100 (45.4)\nCyanogen chloride A 10 (4.54)\nCyclohexane C 1,000 (454)\n2,4-D Acid B 100 (45.4)\n2,4-D Esters B 100 (45.4)\nDDT X 1 (0.454)\nDiazinon X 1 (0.454)\nDicamba C 1,000 (454)\nDichlobenil B 100 (45.4)\nDichlone X 1 (0.454)\nDichlorobenzene B 100 (45.4)\nDichloropropane C 1,000 (454)\nDichloropropene B 100 (45.4)\nDichloropropene-Dichloropropane (mixture) B 100 (45.4)\n2,2-Dichloropropionic acid D 5,000 (2,270)\nDichlorvos A 10 (4.54)\nDicofol A 10 (4.54)\nDieldrin X 1 (0.454)\nDiethylamine B 100 (45.4)\nDimethylamine C 1,000 (454)\nDinitrobenzene (mixed) B 100 (45.4)\nDinitrophenol A 10 (45.4)\nDinitrotoluene A 10 (4.54)\nDiquat C 1,000 (454)\nDisulfoton X 1 (0.454)\nDiuron B 100 (45.4)\nDodecylbenzenesulfonic acid C 1,000 (454)\nEndosulfan X 1 (0.454)\nEndrin X 1 (0.454)\nEpichlorohydrin B 100 (45.4)\nEthion A 10 (4.54)\nEthylbenzene C 1,000 (454)\nEthylenediamine D 5,000 (2,270)\nEthylenediamine-tetraacetic acid (EDTA) D 5,000 (2,270)\nEthylene dibromide X 1 (0.454)\nEthylene dichloride B 100 (45.4)\nFerric ammonium citrate C 1,000 (454)\nFerric ammonium oxalate C 1,000 (454)\nFerric chloride C 1,000 (454)\nFerric fluoride B 100 (45.4)\nFerric nitrate C 1,000 (454)\nFerric sulfate C 1,000 (454)\nFerrous ammonium sulfate C 1,000 (454)\nFerrous chloride B 100 (45.4)\nFerrous sulfate C 1,000 (454)\nFormaldehyde B 100 (45.4)\nFormic acid D 5,000 (2,270)\nFumaric acid D 5,000 (2,270)\nFurfural D 5,000 (2,270)\nGuthion X 1 (0.454)\nHeptachlor X 1 (0.454)\nHexachlorocyclopentadiene A 10 (4.54)\nHydrochloric acid D 5,000 (2,270)\nHydrofluoric acid B 100 (45.4)\nHydrogen cyanide A 10 (4.54)\nHydrogen sulfide B 100 (45.4)\nIsoprene B 100 (45.4)\nIsopropanolamine dodecylbenzenesulfonate C 1,000 (454)\nKepone X 1 (0.454)\nLead acetate A 10 (4.54)\nLead arsenate X 1 (0.454)\nLead chloride A 10 (4.54)\nLead fluoborate A 10 (4.54)\nLead fluoride A 10 (4.54)\nLead iodide A 10 (4.54)\nLead nitrate A 10 (4.54)\nLead stearate A 10 (4.54)\nLead sulfate A 10 (4.54)\nLead sulfide A 10 (4.54)\nLead thiocyanate A 10 (4.54)\nLindane X 1 (0.454)\nLithium chromate A 10 (4.54)\nMalathion B 100 (45.4)\nMaleic acid D 5,000 (2,270)\nMaleic anhydride D 5,000 (2,270)\nMercaptodimethur A 10 (4.54)\nMercuric cyanide X 1 (0.454)\nMercuric nitrate A 10 (4.54)\nMercuric sulfate A 10 (4.54)\nMercuric thiocyanate A 10 (4.54)\nMercurous nitrate A 10 (4.54)\nMethoxychlor X 1 (0.454)\nMethyl mercaptan B 100 (45.4)\nMethyl methacrylate C 1,000 (454)\nMethyl parathion B 100 (45.4)\nMevinphos A 10 (4.54)\nMexacarbate C 1,000 (454)\nMonoethylamine B 100 (45.4)\nMonomethylamine B 100 (45.4)\nNaled A 10 (4.54)\nNaphthalene B 100 (45.4)\nNaphthenic acid B 100 (45.4)\nNickel ammonium sulfate B 100 (45.4)\nNickel chloride B 100 (45.4)\nNickel hydroxide A 10 (4.54)\nNickel nitrate B 100 (45.4)\nNickel sulfate B 100 (45.4)\nNitric acid C 1,000 (454)\nNitrobenzene C 1,000 (454)\nNitrogen dioxide A 10 (4.54)\nNitrophenol (mixed) B 100 (45.4)\nNitrotoluene C 1,000 (454)\nParaformaldehyde C 1,000 (454)\nParathion A 10 (4.54)\nPentachlorophenol A 10 (4.54)\nPhenol C 1,000 (454)\nPhosgene A 10 (4.54)\nPhosphoric acid D 5,000 (2,270)\nPhosphorus X 1 (0.454)\nPhosphorus oxychloride C 1,000 (454)\nPhosphorus pentasulfide B 100 (45.4)\nPhosphorus trichloride C 1,000 (454)\nPolychlorinated biphenyls X 1 (0.454)\nPotassium arsenate X 1 (0.454)\nPotassium arsenite X 1 (0.454)\nPotassium bichromate A 10 (4.54)\nPotassium chromate A 10 (4.54)\nPotassium cyanide A 10 (4.54)\nPotassium hydroxide C 1,000 (454)\nPotassium permanganate B 100 (45.4)\nPropargite A 10 (4.54)\nPropionic acid D 5,000 (2,270)\nPropionic anhydride D 5,000 (2,270)\nPropylene oxide B 100 (45.4)\nPyrethrins X 1 (0.454)\nQuinoline D 5,000 (2,270)\nResorcinol D 5,000 (2,270)\nSelenium oxide A 10 (4.54)\nSilver nitrate X 1 (0.454)\nSodium A 10 (4.54)\nSodium arsenate X 1 (0.454)\nSodium arsenite X 1 (0.454)\nSodium bichromate A 10 (4.54)\nSodium bifluoride B 100 (45.4)\nSodium bisulfite D 5,000 (2,270)\nSodium chromate A 10 (4.54)\nSodium cyanide A 10 (4.54)\nSodium dodecylbenzenesulfonate C 1,000 (454)\nSodium fluoride C 1,000 (454)\nSodium hydrosulfide D 5,000 (2,270)\nSodium hydroxide C 1,000 (454)\nSodium hypochlorite B 100 (45.4)\nSodium methylate C 1,000 (454)\nSodium nitrite B 100 (45.4)\nSodium phosphate, dibasic D 5,000 (2,270)\nSodium phosphate, tribasic D 5,000 (2,270)\nSodium selenite B 100 (45.4)\nStrontium chromate A 10 (4.54)\nStrychnine A 10 (4.54)\nStyrene C 1,000 (454)\nSulfuric acid C 1,000 (454)\nSulfur monochloride C 1,000 (454)\n2,4,5-T acid C 1,000 (454)\n2,4,5-T amines D 5,000 (2,270)\n2,4,5-T esters C 1,000 (454)\n2,4,5-T salts C 1,000 (454)\nTDE X 1 (0.454)\n2,4,5-TP acid B 100 (45.4)\n2,4,5-TP acid esters B 100 (45.4)\nTetraethyl lead A 10 (4.54)\nTetraethyl pyrophosphate A 10 (4.54)\nThallium sulfate B 100 (45.4)\nToluene C 1,000 (454)\nToxaphene X 1 (0.454)\nTrichlorfon B 100 (45.4)\nTrichloroethylene B 100 (45.4)\nTrichlorophenol A 10 (4.54)\nTriethanolamine dodecylbenzenesulfonate C 1,000 (454)\nTriethylamine D 5,000 (2,270)\nTrimethylamine B 100 (45.4)\nUranyl acetate B 100 (45.4)\nUranyl nitrate B 100 (45.4)\nVanadium pentoxide C 1,000 (454)\nVanadyl sulfate C 1,000 (454)\nVinyl acetate D 5,000 (2,270)\nVinylidene chloride B 100 (45.4)\nXylene (mixed) B 100 (45.4)\nXylenol C 1,000 (454)\nZinc acetate C 1,000 (454)\nZinc ammonium chloride C 1,000 (454)\nZinc borate C 1,000 (454)\nZinc bromide C 1,000 (454)\nZinc carbonate C 1,000 (454)\nZinc chloride C 1,000 (454)\nZinc cyanide A 10 (4.54)\nZinc fluoride C 1,000 (454)\nZinc formate C 1,000 (454)\nZinc hydrosulfite C 1,000 (454)\nZinc nitrate C 1,000 (454)\nZinc phenolsulfonate D 5,000 (2,270)\nZinc phosphide B 100 (45.4)\nZinc silicofluoride D 5,000 (2,270)\nZinc sulfate C 1,000 (454)\nZirconium nitrate D 5,000 (2,270)\nZirconium potassium fluoride C 1,000 (454)\nZirconium sulfate D 5,000 (2,270)\nZirconium tetrachloride D 5,000 (2,270)","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER D—WATER PROGRAMS","PART 117—DETERMINATION OF REPORTABLE QUANTITIES FOR HAZARDOUS SUBSTANCES","Subpart A—General Provisions"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"c32ae41adf94390058be7540463e954b5cb3dce78e0f439c34198a452bb7a39f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-117.2","next":"us/40-cfr-117.11"},"notice":"GroundRules: Original legal text. Not legal advice."}