{"data":{"id":"us/40-cfr-tables-to-part-132","jurisdiction":"us","citation":"40 CFR Tables to Part 132","heading":"Tables to Part 132","body":"Table 1—Acute Water Quality Criteria for Protection of Aquatic Life in Ambient Water\nEPA recommends that metals criteria be expressed as dissolved concentrations (see appendix A, I.A.4 for more information regarding metals criteria).\n(a)\nChemical CMC (µg/L) Conversion factor (CF)\nArsenic (III) a b 339.8 1.000\nChromium (VI) a b 16.02 0.982\nCyanide c 22 n/a\nDieldrin d 0.24 n/a\nEndrin d 0.086 n/a\nLindane d 0.95 n/a\nMercury (II) a b 1.694 0.85\nParathion d 0.065 n/a\na CMC = CMCtr.\nb CMCd = (CMCtr) CF. The CMCd shall be rounded to two significant digits.\nc CMC should be considered free cyanide as CN.\nd CMC = CMCt.\nNotes:\nThe term “n/a” means not applicable.\nCMC is Criterion Maximum Concentration.\nCMCtr is the CMC expressed as total recoverable.\nCMCd is the CMC expressed as a dissolved concentration.\nCMCt is the CMC expressed as a total concentration.\n(b)\nChemical mA bA Conversion factor (CF)\nCadmium a b 1.128 −3.6867 0.85\nChromium (III) a b 0.819 + 3.7256 0.316\nCopper a b 0.9422 −1.700 0.960\nNickel a b 0.846 + 2.255 0.998\nPentachlorophenol c 1.005 −4.869 n/a\nZinc a b 0.8473 + 0.884 0.978\na CMCtr = exp {mA [ln (hardness)] + bA}.\nb CMCd = (CMCtr) CF. The CMCd shall be rounded to two significant digits.\nc CMCt = exp mA {[pH] + bA}. The CMCt shall be rounded to two significant digits.\nNotes:\nThe term “exp” represents the base e exponential function.\nThe term “n/a” means not applicable.\nCMC is Criterion Maximum Concentration.\nCMCtr is the CMC expressed as total recoverable.\nCMCd is the CMC expressed as a dissolved concentration.\nCMCt is the CMC expressed as a total concentration.\nTable 2—Chronic Water Quality Criteria for Protection of Aquatic Life in Ambient Water\nEPA recommends that metals criteria be expressed as dissolved concentrations (see appendix A, I.A.4 for more information regarding metals criteria).\n(a)\nChemical CCC (µg/L) Conversion factor (CF)\nArsenic (III) a b 147.9 1.000\nChromium (VI) a b 10.98 0.962\nCyanide c 5.2 n/a\nDieldrin d 0.056 n/a\nEndrin d 0.036 n/a\nMercury (II) a b 0.9081 0.85\nParathion d 0.013 n/a\nSelenium a b 5 0.922\na CCC = CCCtr.\nb CCCd = (CCCtr) CF. The CCCd shall be rounded to two significant digits.\nc CCC should be considered free cyanide as CN.\nd CCC = CCCt.\nNotes:\nThe term “n/a” means not applicable.\nCCC is Criterion Continuous Concentration.\nCCCtr is the CCC expressed as total recoverable.\nCCCd is the CCC expressed as a dissolved concentration.\nCCCt is the CCC expressed as a total concentration.\n(b)\nChemical mc bc Conversion factor (CF)\nCadmium a b 0.7852 −2.715 0.850\nChromium (III) a b 0.819 + 0.6848 0.860\nCopper a b 0.8545 −1.702 0.960\nNickel a b 0.846 + 0.0584 0.997\nPentachlorophenol c 1.005 −5.134 n/a\nZinc a b 0.8473 + 0.884 0.986\na CCCtr = exp {mc[ln (hardness)] + bc}.\nb CCCd = (CCCtr) (CF). The CCCd shall be rounded to two significant digits.\nc CMCt = exp {mA[pH] + bA}. The CMCt shall be rounded to two significant digits.\nNotes:\nThe term “exp” represents the base e exponential function.\nThe term “n/a” means not applicable.\nCCC is Criterion Continuous Concentration.\nCCCtr is the CCC expressed as total recoverable.\nCCCd is the CCC expressed as a dissolved concentration.\nCCCt is the CCC expressed as a total concentration.\nTable 3—Water Quality Criteria for Protection of Human Health\nChemical HNV (µg/L) HCV (µg/L)\nDrinking Nondrinking Drinking Nondrinking\nBenzene 1.9E1 5.1E2 1.2E1 3.1E2\nChlordane 1.4E-3 1.4E-3 2.5E-4 2.5E-4\nChlorobenzene 4.7E2 3.2E3\nCyanides 6.0E2 4.8E4\nDDT 2.0E-3 2.0E-3 1.5E-4 1.5E-4\nDieldrin 4.1E-4 4.1E-4 6.5E-6 6.5E-6\n2,4-Dimethylphenol 4.5E2 8.7E3\n2,4-Dinitrophenol 5.5E1 2.8E3\nHexachlorobenzene 4.6E-2 4.6E-2 4.5E-4 4.5E-4\nHexachloroethane 6.0 7.6 5.3 6.7\nLindane 4.7E-1 5.0E-1\nMercury 1 1.8E-3 1.8E-3\nMethylene chloride 1.6E3 9.0E4 4.7E1 2.6E3\n2,3,7,8-TCDD 6.7E-8 6.7E-8 8.6E-9 8.6E-9\nToluene 5.6E3 5.1E4\nToxaphene 6.8E-5 6.8E-5\nTrichloroethylene 2.9E1 3.7E2\n1 Includes methylmercury.\nTable 4—Water Quality Criteria for Protection of Wildlife\nChemical Criteria (µg/L)\nDDT and metabolites 1.1E-5\nMercury (including methylmercury) 1.3E-3\nPCBs (class) 1.2E-4\n2,3,7,8-TCDD 3.1E-9\nTable 5—Pollutants Subject to Federal, State, and Tribal Requirements\nAlkalinity\nAmmonia\nBacteria\nBiochemical oxygen demand (BOD)\nChlorine\nColor\nDissolved oxygen\nDissolved solids\npH\nPhosphorus\nSalinity\nTemperature\nTotal and suspended solids\nTurbidity\nTable 6—Pollutants of Initial Focus in the Great Lakes Water Quality Initiative\nA. Pollutants that are bioaccumulative chemicals of concern (BCCs):\nChlordane\n4,4′-DDD; p,p′-DDD; 4,4′-TDE; p,p′-TDE\n4,4′-DDE; p,p′-DDE\n4,4′-DDT; p,p′-DDT\nDieldrin\nHexachlorobenzene\nHexachlorobutadiene; hexachloro-1, 3-butadiene\nHexachlorocyclohexanes; BHCs\nalpha-Hexachlorocyclohexane; alpha-BHC\nbeta-Hexachlorocyclohexane; beta-BHC\ndelta-Hexachlorocyclohexane; delta-BHC\nLindane; gamma-hexachlorocyclohexane; gamma-BHC\nMercury\nMirex\nOctachlorostyrene\nPCBs; polychlorinated biphenyls\nPentachlorobenzene\nPhotomirex\n2,3,7,8-TCDD; dioxin\n1,2,3,4-Tetrachlorobenzene\n1,2,4,5-Tetrachlorobenzene Toxaphene\nB. Pollutants that are not bioaccumulative chemicals of concern:\nAcenaphthene\nAcenaphthylene\nAcrolein; 2-propenal\nAcrylonitrile\nAldrin\nAluminum\nAnthracene\nAntimony\nArsenic\nAsbestos\n1,2-Benzanthracene; benz[a]anthracene\nBenzene\nBenzidine\nBenzo[a]pyrene; 3,4-benzopyrene\n3,4-Benzofluoranthene; benzo[b]fluoranthene\n11,12-Benzofluoranthene; benzo[k]fluoranthene\n1,12-Benzoperylene; benzo[ghi]perylene\nBeryllium\nBis(2-chloroethoxy) methane\nBis(2-chloroethyl) ether\nBis(2-chloroisopropyl) ether\nBromoform; tribomomethane\n4-Bromophenyl phenyl ether\nButyl benzyl phthalate\nCadmium\nCarbon tetrachloride; tetrachloromethane\nChlorobenzene\np-Chloro-m-cresol; 4-chloro-3-methylphenol\nChlorodibromomethane\nChlorethane\n2-Chloroethyl vinyl ether\nChloroform; trichloromethane\n2-Chloronaphthalene\n2-Chlorophenol\n4-Chlorophenyl phenyl ether\nChlorpyrifos\nChromium\nChrysene\nCopper\nCyanide\n2,4-D; 2,4-Dichlorophenoxyacetic acid\nDEHP; di(2-ethylhexyl) phthalate\nDiazinon\n1,2:5,6-Dibenzanthracene; dibenz[a,h]anthracene\nDibutyl phthalate; di-n-butyl phthalate\n1,2-Dichlorobenzene\n1,3-Dichlorobenzene\n1,4-Dichlorobenzene\n3,3′-Dichlorobenzidine\nDichlorobromomethane; bromodichloromethane\n1,1-Dichloroethane\n1,2-Dichloroethane\n1,1-Dichloroethylene; vinylidene chloride\n1,2-trans-Dichloroethylene\n2,4-Dichlorophenol\n1,2-Dichloropropane\n1,3-Dichloropropene; 1,3-dichloropropylene\nDiethyl phthalate\n2,4-Dimethylphenol; 2,4-xylenol\nDimethyl phthalate\n4,6-Dinitro-o-cresol; 2-methyl-4,6-dinitrophenol\n2,4-Dinitrophenol\n2,4-Dinitrotoluene\n2,6-Dinitrotoluene\nDioctyl phthalate; di-n-octyl phthalate\n1,2-Diphenylhydrazine\nEndosulfan; thiodan\nalpha-Endosulfan\nbeta-Endosulfan\nEndosulfan sulfate\nEndrin\nEndrin aldehyde\nEthylbenzene\nFluoranthene\nFluorene; 9H-fluorene\nFluoride\nGuthion\nHeptachlor\nHeptachlor epoxide\nHexachlorocyclopentadiene\nHexachloroethane\nIndeno[1,2,3-cd]pyrene; 2,3-o-phenylene pyrene\nIsophorone\nLead\nMalathion\nMethoxychlor\nMethyl bromide; bromomethane\nMethyl chloride; chloromethane\nMethylene chloride; dichloromethane\nNapthalene\nNickel\nNitrobenzene\n2-Nitrophenol\n4-Nitrophenol\nN-Nitrosodimethylamine\nN-Nitrosodiphenylamine\nN-Nitrosodipropylamine; N-nitrosodi-n-propylamine\nParathion\nPentachlorophenol\nPhenanthrene\nPhenol\nIron\nPyrene\nSelenium\nSilver\n1,1,2,2-Tetrachloroethane\nTetrachloroethylene\nThallium\nToluene; methylbenzene\n1,2,4-Trichlorobenzene\n1,1,1-Trichloroethane\n1,1,2-Trichloroethane\nTrichloroethylene; trichloroethene\n2,4,6-Trichlorophenol\nVinyl chloride; chloroethylene; chloroethene\nZinc","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER D—WATER PROGRAMS","PART 132—WATER QUALITY GUIDANCE FOR THE GREAT LAKES SYSTEM"],"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":"284c70d428d9c27dc4a2612e509980784ffb14dced4eec2b78c938998f0aa139","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-132.6","next":"us/40-cfr-appendix-a-to-part-132"},"notice":"GroundRules: Original legal text. Not legal advice."}