U.S. Geological Survey National Water-Quality Assessment Program
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U.S. Geological Survey National Water-Quality Assessment Program Stream water-quality analytes Major ions and trace elementsschedule 998 (20 constituents) Pesticides schedule 2437 (229 compounds) Alkalinity 1H1,2,4Triazole Arsenic 2,3,3Trichloro2propene1sulfonic acid (TCPSA) Boron 2,4D Calcium 2(1Hydroxyethyl)6methylaniline Chloride 2[(2Ethyl6methylphenyl)amino]1propanol Fluoride 2AminoNisopropylbenzamide Iron 2Aminobenzimidazole Lithium 2Chloro2',6'diethylacetanilide 2Chloro4,6diaminostriazine {CAAT} Magnesium (Didealkylatrazine) pH 2Chloro4isopropylamino6aminostriazine Potassium 2Chloro6ethylamino4aminostriazine {CEAT} Total dissolved solids 2ChloroN(2ethyl6methylphenyl)acetamide Selenium 2Hydroxy4isopropylamino6aminostriazine 2Hydroxy4isopropylamino6ethylaminostriazin Silica e {OIET} Sodium 2Hydroxy6ethylamino4aminostriazine Specific conductance 2Isopropyl6methyl4pyrimidinol Strontium 3,4Dichlorophenylurea Sulfate 3Hydroxycarbofuran Turbidity 3Phenoxybenzoic acid Vanadium 4(Hydroxymethyl)pendimethalin 4Chlorobenzylmethyl sulfoxide Suspended sediment 4Hydroxy molinate 4Hydroxychlorothalonil Nutrientsschedule 2430 (18 constituents) 4Hydroxyhexazinone A Inorganic carbon, suspended Acephate Dissolved inorganic carbon Acetochlor ammonia + organic nitrogen (unfilteredKjeldahl) Acetochlor oxanilic acid ammonia + organic nitrogen (filteredKjeldahl) Acetochlor sulfonic acid Ammonia as N, filtered Acetochlor sulfynilacetic acid nitrite, filtered Alachlor Nitrite + nitrate, filtered Alachlor oxanilic acid Organic carbon, suspended Alachlor sulfonic acid Dissolved organic carbon Alachlor sulfynilacetic acid Phosphorus, filtered Aldicarb Total phosphorus, unfiltered Aldicarb sulfone Orthophosphate, filtered Aldicarb sulfoxide Total nitrogen (NH3+NO2+NO3+Organic), filtered Ametryn Total Particulate Carbon (TPC) Asulam Total Particulate Nitrogen (TPN) Atrazine Ultraviolet absorbing organic constituents 254 nm Azinphosmethyl Ultraviolet absorbing organic constituents 280nm Azinphosmethyl oxon Ultraviolet absorbing organic constituents 412 nm Azoxystrobin Bentazone Bifenthrin Bromacil Bromoxynil Butralin Butylate Pesticides continued Fenamiphos sulfone Carbaryl Fenamiphos sulfoxide Carbendazim Fenbutatin oxide Carbofuran Fentin Carboxy molinate Fipronil Chlorimuronethyl Fipronil amide Chlorosulfonamide acid Fipronil sulfide Chlorpyrifos Fipronil sulfonate Chlorpyrifos oxon Fipronil sulfone Chlorsulfuron Flubendiamide cisBifenthrin acid/cisCyhalothrin Flumetsulam acid/cisTefluthrin acid cisPermethrin Fluometuron Cyanazine Fonofos Dacthal monoacid Halosulfuronmethyl Dechlorofipronil Hexazinone Dechlorometolachlor Hexazinone Transformation Product C Deiodo flubendiamide Hexazinone Transformation Product D Deisopropyl prometryn Hexazinone Transformation Product E Demethyl fluometuron Hexazinone Transformation Product G Demethyl hexazinone B Hydroxy didemethyl fluometuron Demethyl norflurazon Hydroxy monodemethyl fluometuron Desamino metribuzin Hydroxyacetochlor Desaminodiketo metribuzin Hydroxyalachlor Desulfinylfipronil Hydroxydiazinon Desulfinylfipronil amide Hydroxyfluometuron Diazinon Hydroxymetolachlor Diazinon oxon Hydroxyphthalazinone Dicamba Hydroxysimazine Dichlorvos Hydroxytebuthurion Dicrotophos Imazamox Didemethyl hexazinone F Imazaquin Diflubenzuron Imazethapyr Diflufenzopyr Imidacloprid Diketonitrileisoxaflutole Indoxacarb Dimethenamid Isoxaflutole Dimethenamid oxanilic acid Isoxaflutole acid metabolite RPA 203328 Dimethenamid SAA Kresoximmethyl Dimethenamid sulfonic acid Lactofen Dimethoate Linuron Disulfoton Malaoxon Disulfoton oxon Malathion Disulfoton oxon sulfone MCPA Disulfoton oxon sulfoxide Metalaxyl Disulfoton sulfone Metconazole Disulfoton sulfoxide Methamidophos Diuron Methidathion EPTC Methomyl EPTC degradate R248722 Methomyl oxime Ethoprophos Methoxyfenozide Etoxazole Methyl paraoxon Famoxadone Methyl parathion Fenamiphos Metolachlor Pesticides continued Metolachlor hydroxy morpholinone secAcetochlor oxanilic acid Metolachlor oxanilic acid secAlachlor oxanilic acid Metolachlor sulfonic acid Siduron Metribuzin Simazine Metribuzin DK Sulfentrazone Molinate Sulfometuronmethyl Myclobutanil Sulfosulfuron N(3,4Dichlorophenyl)N'methylure a Sulfosulfuron ethyl sulfone Naled Tebuconazole Nicosulfuron Tebufenozide Norflurazon Tebupirimfos oxon Novaluron Tebupirimphos OEthylOmethylSpropylphosphorothioate Tebuthiuron OEthylSmethylSpropyl phosphorodithioate Tebuthiuron TP 104 OEthylSpropyl phosphorothioate Tebuthiuron TP el108 Omethoate (Dimethoate oxon) Tebuthiuron TP el109 Tebuthiuron Transformation Product Orthosulfamuron 106 Oryzalin Terbacil Oxamyl Terbufos Oxamyl oxime Terbufos oxon Oxyfluorfen Terbufos oxon sulfone Paraoxon Terbufos oxon sulfoxide Pendimethalin Terbufos sulfone Phorate Terbufos sulfoxide Phorate oxon Terbuthylazine Phorate oxon sulfone Tetraconazole Phorate oxon sulfoxide Thiobencarb Phorate sulfone transPermethrin Phorate sulfoxide Triallate Phosmet Tribufos Phthalazinone Triclopyr Piperonyl butoxide Trifloxystrobin Profenofos Prometon Prometryn Propanil Propargite Propazine Propiconazole Propoxur Propyzamide Prosulfuron Pymetrozine Pyraclostrobin Pyridaben Pyriproxyfen .