Contaminant database

How to read this table…

The aim of this table is to have updated knowledge of the contaminants that we find in drinking water – what they are, what we know about them and how capable distillation, carbon filters and membrane filters (RO, NF, UF, MF) are to reduce/remove them from drinking water.

For membrane filtration, especially of the reverse osmosis (RO) type, there is large variations in quality on the market. Ratings are given for large-scale production systems, and some home systems may not be able to meet the same quality standards.

Our assumptions: Contaminants are assumed to be retained by distillation if their vapor pressure is equal or lower to 53 mPa and at the same time have a boiling point (respectively melting point if there is no boiling point) of 140 °C or higher. These assumptions are based on experimental data from Hanson,2004; Bills,1967 and Hoff,2019, whose retained contaminants have the threshold values mentioned above. Vapor pressure and boiling / melting temperature are the most critical parameters for contaminants, when separated per distillation.

The removal efficacy is divided in three ranges, adapted from Ruel et al.: Red (below 30% removal) – Yellow (between 30% and 70% removal) Green (higher than 70% removal) and Blank means that we can not find documentation.

Please let us know if you have documentation that may fill out a blank or correct anything in the below.

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Name	WHO	US	EU	EWG	Distillation	Carbon filter	Membrane filtration	WaterStillar	References
1-Chloropropane C3H7Cl Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019 Yalkowsky2010
1-Pentanol C5H12O Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
1-Propanol Industrial compound					Unknown	Red	Unknown	Unknown	Lenntech2019
1,4-Dioxane C4H8O Industrial compound	50 µg/L	N/A		0.35 ppb	Unknown	Red	Green	Unknown	SchoonenbergKegel2010
1,2,4-Triazole Pesticide					Unknown	Unknown	Unknown	Unknown
1,3,5-Trimethylbenzene Industrial compound					Unknown	Green	Green	Green	Lenntech2019 EWG2019
2-Chlorophenol Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
2-Methylbenzenamine Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
2-Methylbutane Industrial compound					Unknown	Green	Green	Green	Lenntech2019
2-Methylisoborneol (MIB) Industrial compound					Unknown	Green	Green	Green	SchoonenbergKegel2010
2,2-Bipyridine Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
2,4-Dichlorophenoxyacetic acid (2,4-D) C8H6Cl2O3 Pesticide	30 µg/L	70 ppb		20 ppb	Blue	Green	Yellow	Green	Dvorak2014 RodriguezMozaz2015 MidwestLaboratories1996
2,4,6-Tribromophenol Industrial compound					Unknown	Unknown	Yellow	Unknown	Ruel2011 Waterstillar2020
2,6-Dichlorbenzamide (BAM) C7H5Cl2NO Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
2,6-Dichlorobenzoic acid C7H4Cl2O2 Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
2,4-Dinitrophenol Industrial compound					Green	Green	Green	Green	SchoonenbergKegel2010 MidwestLaboratories1996
2,4-Dinitrocresol Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
2,4-Dinitrotoluene Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
2,6-Dinitrotoluene Industrial compound					Green	Green	Unknown	Green	Lenntech2019 MidwestLaboratories1996
2,3-Dichlorophenylpiperazine (DCPP) C9H8Cl2O3 Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
4-Chloro-2-nitrotoluene Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
4-Chlorophenoxy-propionic acid (CPP) C9H9ClO3 Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
4-Methylbenzenamine Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
4-Nitrophenol C6H5NO3 Pesticide					Blue	Yellow	Unknown	Green	Mailler2016 MidwestLaboratories1996
4-Nonylphenol Industrial compound					Unknown	Yellow	Yellow	Yellow	Ruel2011 Snyder2007
17-Alpha-estradiol Pharmaceutical or hormone					Unknown	Red	Green	Unknown	Mailler2016 Snyder2007 Waterstillar2020
17-Beta-estradiol Pharmaceutical or hormone					Unknown	Red	Green	Unknown	Mailler2016 Snyder2007 Waterstillar2020
Acesulfame Additive					Unknown	Yellow	Unknown	Yellow	Mailler2016 Waterstillar2020
Acetaminophen Pharmaceutical or hormone					Unknown	Green	Green	Green	Huang2011 Mailler2016
Acetic acid Industrial compound					Unknown	Yellow	Unknown	Yellow	Lenntech2019
Acetone Industrial compound					Unknown	Red	Unknown	Unknown	Lenntech2019
Acetonitrile Industrial compound					Unknown	Red	Unknown	Unknown	Lenntech2019
Acrylamide	0.5 µg/L		0.1 µg/L		Unknown	Yellow	Unknown	Yellow	Lenntech2019
Alachlor Pesticide					Blue	Green	Green	Green	Brita2018 Culligan2014 Hanson2004
Aldicarb Pesticide	10 µg/L				Blue	Green	Green	Green	Waterstillar2020 EWG2019
Alkylbenzene Industrial compound					Unknown	Unknown	Unknown	Unknown
Aluminium Al Metal	100 - 200 µg/L	N/A	200 µg/L	600 ppb	Green	Unknown	Red	Green	Ruel2011 MidwestLaboratories1996
Ammonium NH4+ Industrial compound			500 µg/L		Green	Green	Unknown	Green	Mailler2016 Waterstillar2020
Aminomethylphosphonic acid (AMPA) CH6NO3P Pesticide	900 µg/L				Unknown	Red	Green	Unknown	Jönsson2013
Aniline Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Anthracene Industrial compound					Green	Green	Green	Green	Snyder2007 MidwestLaboratories1996 EWG2019
Antimony Sb Metal	20 µg/L	6 ppb	5 µg/L	1 ppb	Green	Unknown	Green	Green	Ruel2011 MidwestLaboratories1996
Arsenic As Metal	10 µg/L	10 ppb	10 μg	0.004 ppb	Green	Unknown	Green	Green	Ruel2011 MidwestLaboratories1996
Asbestos Additive	None				Green	Green	Green	Green	Dvorak2014 Brita2018
Atenolol Pharmaceutical or hormone					Unknown	Green	Green	Green	Mailler2016 RodriguezMozaz2015
Atrazine C8H14ClN5 Pesticide	100 µg/L	3 ppb		0.1 ppb	Blue	Green	Green	Green	SchoonenbergKegel2010 MidwestLaboratories1996
Azinphos-ethyl Pesticide					Unknown	Green	Unknown	Green	Lenntech2019
Bacteria Microorganism or pollutants from microorganism	/100 ml				Green	Red	Unknown	Green	Asadi, 2013 Nasciemento2018 MidwestLaboratories1996
Barium Ba Metal	1.3 mg/L	2 ppm		0.7 ppm	Green	Unknown	Green	Green	Ruel2011 MidwestLaboratories1996
Bentazon C10H12N2O3S Pesticide	500 µg/L				Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Benzene Industrial compound	10 µg/L	5 ppb	1 µg/L	0.15 ppb	Green	Green	Green	Green	SchoonenbergKegel2010 MidwestLaboratories1996
Benzofluoranthene Industrial compound					Unknown	Green	Green	Green	Snyder2007 EWG2019
Benzoic acid Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Benzo(g,h,i)perylene Industrial compound					Unknown	Green	Green	Green	Snyder2007 EWG2019
Benzo(a)pyrene Industrial compound	0.7 µg/L		0.01 µg/L		Unknown	Green	Green	Green
Benzotriazole Industrial compound					Unknown	Green	Unknown	Green	Mailler2016
Benzyl alcohol Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Beryllium Metal	12 µg/L	4 ppb		1 ppb	Green	Unknown	Green	Green	Dvorak2014 Waterstillar2020
Bezafibrate Pharmaceutical or hormone					Blue	Yellow	Green	Green	Mailler2016 SchoonenbergKegel2010 Waterstillar2020
Bicarbonate HCO3 Salt	100 mg/L				Green	Red	Unknown	Green	Waterstillar2020
Biological oxygen demand (BOD) Wastewater parameter					Green	Yellow	Unknown	Green	Mailler2016 Velmurugan2009
Biphenil Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Bis(2-chloroethyl)ether Industrial compound					Green	Green	Green	Green	Lenntech2019 MidwestLaboratories1996 EWG2019
Bis(2-ethylhexyl)Phthalate Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Bisphenol A Additive					Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Bisphenol S Additive					Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Boron B Metal	2.4 mg/L		1 mg/L		Green	Yellow	Green	Green	Ruel2011 MidwestLaboratories1996
Bromacil C9H13BrN2O2 Pesticide					Green	Green	Green	Green	Lenntech2019 Waterstillar2020 EWG2019
Bromate BrO3 Industrial compound	10 µg/L	10 ppb	10 µg/L	0.1 ppb	Unknown	Green	Green	Green	EWG2019
Bromodichloromethane Industrial compound	60 µg/L	N/A		0.4 ppb	Unknown	Green	Unknown	Green	Lenntech2019
Bromochloroacetonitrile Industrial compound	None				Unknown	Green	Green	Green	Brita2018 Culligan2014
Bromoform Industrial compound	100 µg/L	N/A		5 ppb	Green	Green	Green	Green	MidwestLaboratories1996 EWG2019
Butylacetate Industrial compound					Unknown	Unknown	Unknown	Unknown
Butyl paraben Personal care product					Unknown	Green	Unknown	Green	Mailler2016
Butylbenzene Industrial compound					Unknown	Green	Green	Green	Lenntech2019 EWG2019
Cadmium Cd Metal	3 µg/L	5 ppb	5 µg/L	0.04 ppb	Green	Red	Green	Green	Ruel2011 Wimalawansa2013
Caffeine Food compound					Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Calcium hypochlorite Disinfection compound					Unknown	Green	Unknown	Green	Lenntech2019
Campylobacter Microorganism or pollutants from microorganism	1.05*10^-4 /L				Green	Unknown	Unknown	Green	Waterstillar2020
Carbamazepine Pharmaceutical or hormone					Unknown	Green	Green	Green	SchoonenbergKegel2010
Carbendazim Pesticide					Green	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Carbofuran Pesticide	4 µg/L	40 ppb		0.7 ppb	Blue	Green	Green	Green	Brita2018 Culligan2014 Waterstillar2020
Carbon tetrachloride Industrial compound	4 µg/L	5 ppb		0.1 ppb	Green	Green	Green	Green	Dvorak2014 Culligan2014 MidwestLaboratories1996
CGA 108906 Pesticide	0.1 µg/L				Unknown	Unknown	Unknown	Unknown
CGA 62826 C14H19NO4 Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Chemical oxygen demand (COD) Wastewater parameter					Green	Yellow	Unknown	Green	Asadi, 2013 Mailler2016 Velmurugan2009
Chlorate Salt	700 µg/L	N/A		210 ppb	Green	Red	Unknown	Green	Waterstillar2020
Chlordane Pesticide	0.2 µg/L	2 ppb		0.03 ppb	Blue	Yellow	Green	Green	Snyder2007 Waterstillar2020 EWG2019
Chlorfenvinphos Pesticide					Blue	Unknown	Unknown	Green	Waterstillar2020
Chloride Cl- Salt	250 mg/L		250 mg/L		Green	Unknown	Green	Green	CardosodaSilva2014 Hanson2004 Hoque2019 Huikuri1998 Velmurugan2009 MidwestLaboratories1996
Chlorine Cl Disinfection compound	5 mg/L				Unknown	Green	Green	Green	Dvorak2014 Culligan2014
Chlorite Salt	700 µg/L				Green	Green	Green	Green	Waterstillar2020 EWG2019
Chlorobenzene Industrial compound	300 µg/L	100 ppb		70 ppb	Green	Green	Green	Green	Brita2018 Culligan2014 MidwestLaboratories1996
Chloroethane Industrial compound					Unknown	Yellow	Green	Yellow	Lenntech2019 EWG2019
Chloroform Industrial compound	30 µg/L	N/A		1 ppb	Green	Yellow	Green	Green	Culligan2014 Lenntech2019 MidwestLaboratories1996
Chloropicrin Pesticide	None				Unknown	Green	Green	Green	Brita2018 Culligan2014
Chlorothalonil-amidsulfonic acid C8Cl4N2 Pesticide	0.1 µg/L				Green	Unknown	Unknown	Green	Waterstillar2020
Chlorotoluron Pesticide	30 µg/L				Unknown	Green	Green	Green	SchoonenbergKegel2010
Chlorpyrifos Pesticide	30 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Chromium (III) Cr Metal	50 µg/L		50 µg/L		Green	Green	Green	Green	Ruel2011 MidwestLaboratories1996
Chromium (IV) Cr Metal					Green	Green	Green	Green
Ciprofloxacin Pharmaceutical or hormone					Unknown	Green	Unknown	Green	Mailler2016
Clopyralid C6H3Cl2NO2 Pesticide					Green	Unknown	Unknown	Green	Waterstillar2020
Clostridium perfringens Microorganism or pollutants from microorganism			/100 ml		Green	Unknown	Unknown	Green	Waterstillar2020
Cobalt Co Metal		N/A		70 ppb	Green	Red	Green	Green	Ruel2011 MidwestLaboratories1996
Coliform bacteria Microorganism or pollutants from microorganism			/100 ml		Green	Unknown	Unknown	Green	CardosodaSilva2014 Hanson2004
Colony count 22°C Microorganism or pollutants from microorganism			/100 ml		Green	Unknown	Unknown	Green	Waterstillar2020
Colony count 37°C Wastewater parameter			20 /100 ml		Green	Unknown	Unknown	Green	Waterstillar2020
Color Wastewater parameter			Acceptable, no change		Green	Unknown	Unknown	Green	CardosodaSilva2014
Conductivity Wastewater parameter			2500 µS/cm at 20 °C		Green	Unknown	Green	Green	CardosodaSilva2014 Hanson2004 Hoque2019 Huikuri1998
Copper Cu Metal	2 mg/L	N/A	2 mg/L	300 ppb	Green	Unknown	Green	Green	Dvorak2014 MidwestLaboratories1996
Cryptosporidium Microorganism or pollutants from microorganism	1,3*10^-5 /L				Green	Unknown	Green	Green	Dvorak2014 Waterstillar2020
Cyanazine C9H13ClN6 Pesticide	0.6 µg/L				Green	Green	Green	Green	Lenntech2019 MidwestLaboratories1996 EWG2019
Cyanide Industrial compound	500 µg/L	200 ppb	50 µg/L	150 ppb	Unknown	Unknown	Green	Unknown	Wimalawansa2013
Cyclohexane Industrial compound					Unknown	Green	Green	Green	Lenntech2019 EWG2019
Cypermethrin (CyPM) Pesticide	None				Blue	Unknown	Unknown	Green	Waterstillar2020
Cysts Microorganism or pollutants from microorganism	/100 ml				Green	Red	Green	Green	Dvorak2014 Waterstillar2020
Dichlorodiphenyltrichloroethane (DDT) Pesticide	1 µg/L				Blue	Green	Green	Green	Snyder2007 Waterstillar2020 EWG2019
Decethyl-atrazine Pesticide					Unknown	Unknown	Unknown	Unknown
Diethylhexyl phthalate (DEHP) Additive	8 µg/L	6 ppb		3 ppb	Blue	Green	Green	Green	Waterstillar2020 EWG2019
Deisopropylatrazine Pesticide	0.1 µg/L				Unknown	Green	Unknown	Green	Lenntech2019
Demeton-O Pesticide					Unknown	Green	Unknown	Green	Lenntech2019
Diethyl phthalate (DEP) Industrial compound	8 µg/L				Blue	Red	Green	Green	Mailler2016 SchoonenbergKegel2010 Waterstillar2020
Desethyl-atrazine Pesticide	0.1 µg/L				Green	Green	Green	Green	Lenntech2019 MidwestLaboratories1996 EWG2019
Desethyl-desisopropyl-atrazine Pesticide	0.1 µg/L				Green	Unknown	Unknown	Green	MidwestLaboratories1996
Desethyl-terbutylazine C7H12ClN5 Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Diazinon C12H21N2O3PS Pesticide	None				Blue	Unknown	Green	Green	RodriguezMozaz2015 Waterstillar2020
Dibromoacetonitrile Industrial compound	70 µg/L				Unknown	Green	Green	Green	Brita2018 Culligan2014
Dibromochloromethane Industrial compound	100 µg/L	N/A		0.7 ppb	Unknown	Green	Green	Green	EWG2019
Dibromochloropropane Industrial compound	1 µg/L	0.2 ppb		0.0017 ppb	Unknown	Green	Green	Green	Brita2018 Culligan2014
Dibromoethane Industrial compound	0.4 µg/L				Green	Green	Green	Green	MidwestLaboratories1996 EWG2019
Dichloroacetonitrile Industrial compound	20 µg/L				Unknown	Green	Green	Green	Brita2018 Culligan2014
Dichlorobenzene Industrial compound	300 µg/L	75 ppb		6 ppb	Green	Green	Green	Green	Dvorak2014 MidwestLaboratories1996 EWG2019
Dichloroethane Industrial compound	30 µg/L	5	3 µg/L	0.4 ppb	Green	Yellow	Green	Green	Brita2018 Culligan2014 MidwestLaboratories1996
Dichloroethene Industrial compound	50 µg/L				Green	Unknown	Unknown	Green	MidwestLaboratories1996
Dichloroethylene Industrial compound					Unknown	Green	Green	Green	Brita2018 Culligan2014
Dichloromethane Industrial compound	20 µg/L	5 ppb		4 ppb	Unknown	Green	Green	Green	EWG2019
Dichlorophenol Industrial compound					Green	Green	Unknown	Green	Lenntech2019 MidwestLaboratories1996
Dichlorophenoxy Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Dichloropropane Industrial compound	40 µg/L	5 ppb		0.5 ppb	Green	Green	Green	Green	Brita2018 Culligan2014 MidwestLaboratories1996
Dichloropropene Industrial compound	20 µg/L				Green	Yellow	Green	Green	Lenntech2019 MidwestLaboratories1996 EWG2019
Dichloropropylene Industrial compound					Unknown	Green	Green	Green	Brita2018 Culligan2014
Diclofenac Pharmaceutical or hormone					Unknown	Green	Green	Green	Mailler2016 SchoonenbergKegel2010
Diclorprop (2,4-DP) C9H5D3Cl2O3 Pesticide	100 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Dieldrin Pesticide	0.03 µg/L				Blue	Yellow	Green	Green	Hanson2004 Snyder2007 EWG2019
Diglyme Industrial compound					Unknown	Unknown	Green	Unknown	SchoonenbergKegel2010
Dikegulac Industrial compound					Unknown	Yellow	Unknown	Yellow	Lenntech2019
Dimethoate C5H12NO3PS2 Pesticide	6 µg/L				Unknown	Yellow	Green	Yellow	Lenntech2019 RodriguezMozaz2015
Dimethylamid Industrial compound					Unknown	Green	Green	Green	SchoonenbergKegel2010
Dimethylformaldehyde Industrial compound					Unknown	Red	Unknown	Unknown	Lenntech2019
Dinitrophenols Industrial compound					Unknown	Unknown	Unknown	Unknown
Dinoseb C10H12N2O5 Pesticide	None				Blue	Green	Green	Green	Brita2018 Culligan2014 Waterstillar2020
Dissolved organic carbon (DOC) Wastewater parameter					Unknown	Yellow	Unknown	Yellow	Mailler2016
Diuron C9H10Cl2N2O Pesticide	0.1 µg/L				Blue	Green	Green	Green	RodriguezMozaz2015 SchoonenbergKegel2010 Waterstillar2020
Di-n-butylphthalate (DnBP) Industrial compound					Blue	Red	Green	Green	Mailler2016 Waterstillar2020 EWG2019
Dinitro-ortho-cresol (DNOC) C7H6N2O5 Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Desphenyl chloridazon (DPC) C10H8ClN3O Pesticide					Blue	Unknown	Unknown	Green	Waterstillar2020
E.coli Microorganism or pollutants from microorganism	/100 ml		/100 ml		Green	Unknown	Unknown	Green	CardosodaSilva2014 Hanson2004 Nasciemento2018
Edetic acid Industrial compound	600 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Endosulfan Pesticide	20 µg/L				Blue	Green	Unknown	Green	Lenntech2019 Waterstillar2020
Endrin Pesticide	0.6 µg/L	2 ppb		0.3 ppb	Blue	Yellow	Green	Green	Dvorak2014 Hanson2004 Snyder2007
Enterococci Microorganism or pollutants from microorganism			/100 ml		Green	Unknown	Unknown	Green	Waterstillar2020
Erythromycin Pharmaceutical or hormone					Blue	Yellow	Green	Green	Mailler2016 RodriguezMozaz2015 Waterstillar2020
Estrone Pharmaceutical or hormone					Unknown	Green	Green	Green	Mailler2016 SchoonenbergKegel2010
Ethyl tert-butyl ether (ETBE) Additive					Unknown	Green	Unknown	Green	SchoonenbergKegel2010
Ethyl acetate Industrial compound					Unknown	Yellow	Unknown	Yellow	Lenntech2019
Ethylbenzene Industrial compound	300 µg/L	700 ppb		300 ppb	Green	Green	Red	Green	Brita2018 SchoonenbergKegel2010 MidwestLaboratories1996
Ethylene Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Ethylene dibromide Industrial compound		0.05 ppb		0.01 ppb	Unknown	Green	Green	Green	Brita2018 Culligan2014
Ethylether Industrial compound					Unknown	Yellow	Green	Yellow	Lenntech2019 EWG2019
Ethyl paraben Personal care product					Blue	Yellow	Unknown	Green	Mailler2016 Waterstillar2020
Fecal coliform Microorganism or pollutants from microorganism					Green	Unknown	Unknown	Green	Waterstillar2020
Fluoranthene Industrial compound	None				Green	Green	Green	Green	Snyder2007 MidwestLaboratories1996 EWG2019
Flouride F- Salt					Green	Red	Green	Green
Freon Industrial compound					Unknown	Yellow	Unknown	Yellow	Lenntech2019
Furosemide Pharmaceutical or hormone					Unknown	Green	Unknown	Green	Mailler2016
Gabapentin Pharmaceutical or hormone					Blue	Red	Unknown	Green	Mailler2016 Waterstillar2020
Glyphosate C3H8NO5P Pesticide		700 ppb		5 ppb	Blue	Red	Green	Green	Jönsson2013 Waterstillar2020
Heptachlor Pesticide	None	0.4 ppb		0.008 ppb	Blue	Green	Green	Green	Dvorak2014 Hanson2004 Snyder2007
Heptachlor epoxide Pesticide		0.2 ppb		0.006 ppb	Blue	Yellow	Green	Green	Culligan2014 Snyder2007 Waterstillar2020
Hexachlorobenzene Pesticide	0.05 µg/L	1 ppb		0.03 ppb	Blue	Green	Green	Green	Lenntech2019 Waterstillar2020 EWG2019
Hexachlorobutadiene Industrial compound	0.6 µg/L				Green	Green	Green	Green	Brita2018 Culligan2014 MidwestLaboratories1996
Hexachlorocyclopentadiene Pesticide		50 ppb		2 ppb	Unknown	Green	Green	Green	Brita2018 Culligan2014
Hexane Industrial compound					Unknown	Green	Green	Green	Lenntech2019 EWG2019
Hexazinone C12H20N4O2 Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Hydroquinone Additive					Unknown	Green	Unknown	Green	Lenntech2019
Hydroxysimazine C7H12ClN5 Pesticide	0.1 µg/L				Green	Unknown	Unknown	Green	Waterstillar2020
Ibuprofen Pharmaceutical or hormone					Unknown	Yellow	Green	Yellow	Mailler2016 SchoonenbergKegel2010
Imazapyr Pesticide					Green	Yellow	Unknown	Green	Lenntech2019 Waterstillar2020
Iohexol Pharmaceutical or hormone					Blue	Yellow	Unknown	Green	Mailler2016 Waterstillar2020
Iomeprol Pharmaceutical or hormone					Blue	Yellow	Unknown	Green	Mailler2016 Waterstillar2020
Iopamidol Pharmaceutical or hormone					Blue	Red	Unknown	Green	Mailler2016 Waterstillar2020
Iopromide Pharmaceutical or hormone					Unknown	Yellow	Green	Yellow	Mailler2016 Snyder2007
Iothalamic acid Pharmaceutical or hormone					Unknown	Red	Unknown	Unknown	Mailler2016
Iron Fe Metal	None		200 µg/L		Green	Green	Green	Green	Ruel2011 Huikuri1998 Tiwari2003
Isodrin Pesticide					Green	Green	Unknown	Green	Lenntech2019 Waterstillar2020
Isooctane Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Isopropyl alcohol Industrial compound					Unknown	Red	Unknown	Unknown	Lenntech2019
Isoproturon C12H18N2O Pesticide	9 µg/L				Green	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Ketoprofen Pharmaceutical or hormone					Blue	Green	Green	Green	Mailler2016 RodriguezMozaz2015 Waterstillar2020
Lead Pb Metal	10 µg/L	15 ppb	10 µg/L	2 ppb	Green	Green	Red	Green	Ruel2011 MidwestLaboratories1996
Lindane Pesticide	2 µg/L	0.2 ppb		0.032 ppb	Blue	Green	Green	Green	Dvorak2014 Brita2018 Hanson2004
Linuron Pesticide					Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Lithium Li Metal					Green	Red	Green	Green	Ruel2011 Waterstillar2020
Lorazepam Pharmaceutical or hormone					Unknown	Green	Unknown	Green	Mailler2016
Malathion Pesticide	0.9 mg/L				Blue	Green	Unknown	Green	Lenntech2019 Waterstillar2020
Manganese Mn Metal	0.4 mg/L	N/A	50 µg/L	100 ppb	Green	Unknown	Green	Green	Huikuri1998 MidwestLaboratories1996
2-methyl-4-chlorophenoxyacetic acid (MCPA) C9H9ClO3 Pesticide	700 µg/L				Blue	Green	Green	Green	Lenntech2019 RodriguezMozaz2015 MidwestLaboratories1996
m-Cresol Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Mecoprop (MCPP) C10H11ClO3 Pesticide	10 µg/L				Green	Green	Green	Green	Mailler2016 SchoonenbergKegel2010 MidwestLaboratories1996
Mercury Hg Metal	6 µg/L	2 ppb	1 µg/L	1.2 ppb	Green	Green	Green	Green	Chandrashekara2017 Wimalawansa2013 MidwestLaboratories1996 EWG2019
m-Metalaxyl C15H21NO4 Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Metamitron C10H10N4O Pesticide	0.1 µg/L				Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Metazachlor Pesticide					Blue	Green	Green	Green	Lenntech2019 Waterstillar2020
Methionine Additive					Green	Yellow	Unknown	Green	Lenntech2019 Waterstillar2020
Methoxychlor Pesticide	20 µg/L	40 ppb		0.09 ppb	Blue	Green	Green	Green	Culligan2014 Hanson2004 Snyder2007
Chloromethane Industrial compound				2.69 ppb	Unknown	Red	Green	Unknown	Lenntech2019 EWG2019
Methylene chloride Industrial compound					Unknown	Red	Unknown	Unknown	Lenntech2019
Methyl isobutyl ketone Industrial compound					Unknown	Green	Green	Green	Lenntech2019 EWG2019
Methyl paraben Personal care product					Blue	Yellow	Unknown	Green	Mailler2016 Waterstillar2020
Methyl-tert-butyl ether (MTBE) Industrial compound		N/A		13 ppb	Unknown	Green	Green	Green	SchoonenbergKegel2010
Metobromuron Pesticide					Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Metoprolol Pharmaceutical or hormone					Unknown	Green	Green	Green	SchoonenbergKegel2010
Metolachlor Pesticide	10 µg/L				Green	Green	Green	Green	Snyder2007 MidwestLaboratories1996 EWG2019
Metoxuron Pesticide					Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Metribuzin C8H14N4OS Pesticide	0.1 µg/L				Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Diketo-Metribuzin C7H12N4O2 Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
m-Nitrophenol Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Molybdemium Mo Metal	70 µg/L	N/A		40 ppb	Green	Unknown	Green	Green	Ruel2011 Hanson2004
Monuron Pesticide					Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Monochloracetate Salt	20 µg/L				Green	Red	Unknown	Green	Waterstillar2020
Naphthalene Industrial compound					Green	Green	Yellow	Green	SchoonenbergKegel2010 MidwestLaboratories1996 EWG2019
Naproxen Pharmaceutical or hormone					Green	Green	Green	Green	Mailler2016 RodriguezMozaz2015 Waterstillar2020
Nickel Ni Metal	20 µg/L		20 µg/L		Green	Red	Green	Green	Ruel2011 MidwestLaboratories1996
Nitrate NO3- Industrial compound	50 mg/L	10 ppm	50 mg/L	0.14 ppm	Green	Red	Green	Green	Hanson2004 Mailler2016 Wimalawansa2013
Nitrilotriacetic acid Industrial compound	200 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Nitrite NO2- Salt	3 mg/L		500 µg/L		Blue	Green	Green	Green	Mailler2016 Waterstillar2020 EWG2019
Nitrobenzene Industrial compound	30 µg/L				Green	Green	Unknown	Green	Lenntech2019 MidwestLaboratories1996
N-Nitrosomorpholine (NMOR) Disinfection compound					Unknown	Green	Green	Green	SchoonenbergKegel2010
N-Nitrosodimethylamine (NDMA) Industrial compound	0.1 µg/L	N/A		0.003 ppb	Unknown	Red	Green	Unknown	SchoonenbergKegel2010
N,N-dimethylsulfamide (DMS) C2H8N2O2S Pesticide	0.1 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Norfloxacin Pharmaceutical or hormone					Unknown	Green	Unknown	Green	Mailler2016
Nonylphenol ethoxylate (NP1EO) Industrial compound					Green	Yellow	Red	Green	Ruel2011 Waterstillar2020
Nonylphenol diethoxylate (NP2EO) Industrial compound					Green	Yellow	Unknown	Green	Mailler2016 Waterstillar2020
Nonylphenoxyacetic acid (NP1EC) Industrial compound					Blue	Yellow	Green	Green	Ruel2011 Mailler2016 Waterstillar2020
Octylphenol Industrial compound					Unknown	Yellow	Unknown	Yellow	Snyder2007
Odour Wastewater parameter			Acceptable, no change		Green	Unknown	Unknown	Green	CardosodaSilva2014
Ofloxacin Pharmaceutical or hormone					Unknown	Green	Green	Green	Mailler2016 RodriguezMozaz2015
o-Nitrophenol Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
4-Octylphenol monoethoxylate (OP1EO) Industrial compound					Unknown	Yellow	Unknown	Yellow	Mailler2016 Waterstillar2020
4-Octylphenol diethoxylate (OP2EO) Industrial compound					Unknown	Green	Unknown	Green	Mailler2016
o-Phthalic acid Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Oxazepam Pharmaceutical or hormone					Unknown	Green	Unknown	Green	Mailler2016
Ozone O3 Disinfection compound					Unknown	Green	Unknown	Green	Lenntech2019
Parathion Pesticide	10 µg/L				Blue	Green	Unknown	Green	Lenntech2019 Waterstillar2020
p-Bromophenol Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
pH Wastewater parameter			6.5 - 9.5		Green	Unknown	Unknown	Green	Asadi, 2013 CardosodaSilva2014 Hanson2004 Hoque2019
p-Nitrophenol Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Propazine Pesticide					Green	Green	Unknown	Green	Lenntech2019 MidwestLaboratories1996
Propranolol Pharmaceutical or hormone					Unknown	Green	Green	Green	Mailler2016 RodriguezMozaz2015
Pendimenthalin C13H19N3O4 Pesticide	20 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Pentachlorophenol Pesticide	9 µg/L	1 ppb		0.3 ppb	Blue	Green	Green	Green	Dvorak2014 Brita2018 MidwestLaboratories1996
Pentoxifylline Pharmaceutical or hormone					Unknown	Green	Green	Green	SchoonenbergKegel2010
Perfluorooctanesulfonic acid (PFOA) Industrial compound		N/A		0.001 PPB	Unknown	Yellow	Green	Yellow	Herkert2020
Perfluorooctanesulfonate (PFOS) Industrial compound		N/A		0.001 ppb	Unknown	Green	Green	Green	Herkert2020
Phenazon Pharmaceutical or hormone					Unknown	Green	Green	Green	SchoonenbergKegel2010
Phenol Industrial compound					Green	Green	Green	Green	Lenntech2019 MidwestLaboratories1996 EWG2019
Phenylalanine Additive					Blue	Green	Unknown	Green	Lenntech2019 Waterstillar2020
Phenytoin Pharmaceutical or hormone					Unknown	Green	Unknown	Green	Brita2018
Phosphate PO4 Salt	150 µg/L				Green	Yellow	Green	Green	Mailler2016 Waterstillar2020 Wimalawansa2013
Pirimicarb Pesticide					Blue	Green	Green	Green	SchoonenbergKegel2010 Waterstillar2020
Propionitrile Industrial compound					Unknown	Red	Unknown	Unknown	Lenntech2019
Propyl paraben Personal care product					Blue	Yellow	Unknown	Green	Mailler2016 Waterstillar2020
Ps. Aeruginosa Microorganism or pollutants from microorganism			/250 ml		Green	Unknown	Green	Green	Waterstillar2020
Pyridine Industrial compound					Unknown	Yellow	Unknown	Yellow	Lenntech2019
Rotavirus Microorganism or pollutants from microorganism	1,1*10^-5 /L				Green	Unknown	Unknown	Green	Waterstillar2020
Roxithromycin Pharmaceutical or hormone					Unknown	Green	Unknown	Green	Mailler2016
Rubidium Rb Metal					Blue	Red	Green	Green	Ruel2011 Waterstillar2020
Saccharin Additive					Green	Green	Unknown	Green	Mailler2016 Waterstillar2020
Selenium Se Metal	40 µg/L	50 ppb	10 µg/L	30 ppb	Green	Unknown	Green	Green	Ruel2011 MidwestLaboratories1996
Silver Ag Metal	None				Green	Red	Green	Green	Dvorak2014 Waterstillar2020
Simazine C7H12ClN5 Pesticide	2 µg/L	4 ppb		0.1 ppb	Blue	Green	Green	Green	Ruel2011 MidwestLaboratories1996
Sodium cation Na+ Salt	200 mg/L		200 mg/L		Green	Red	Green	Green	CardosodaSilva2014 Hanson2004 Huikuri1998 Velmurugan2009 MidwestLaboratories1996
Sodium dichloroisocyanate Salt	50 mg/L				Green	Red	Unknown	Green	Waterstillar2020
Sodium dichloroisocyanuric acid Industrial compound	40 mg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Sotalol Pharmaceutical or hormone					Unknown	Yellow	Green	Yellow	SchoonenbergKegel2010
Styrene Industrial compound	20 µg/L	100 ppb		0.5 ppb	Green	Green	Green	Green	Brita2018 MidwestLaboratories1996 EWG2019
Strontium Sr Metal		N/A		1.5 ppm	Green	Unknown	Green	Green	USwatersystems2020 Waterstillar2020
Sucralose Additive					Blue	Yellow	Unknown	Green	Mailler2016 Waterstillar2020
Sulfadiazine Pharmaceutical or hormone					Unknown	Green	Unknown	Green	Mailler2016
Sulfadimethoxine Pharmaceutical or hormone					Blue	Red	Unknown	Green	Mailler2016 Waterstillar2020
Sulfamethoxazole Pharmaceutical or hormone					Unknown	Green	Green	Green	Mailler2016 SchoonenbergKegel2010
Sulfate Salt	None		250 mg/L		Green	Unknown	Green	Green	Huikuri1998 Snyder2007 Waterstillar2020
Sulfathiazole Pharmaceutical or hormone					Blue	Yellow	Unknown	Green	Mailler2016 Waterstillar2020
t-OP Industrial compound					Unknown	Green	Unknown	Green	Mailler2016
Tert-Amyl methyl ether (TAME) Industrial compound					Unknown	Green	Green	Green	SchoonenbergKegel2010
Taste Wastewater parameter			Acceptable, no change		Green	Unknown	Unknown	Green	CardosodaSilva2014
Tris(2-carboxyethyl)phosphine (TCEP) Industrial compound					Blue	Unknown	Unknown	Green	Waterstillar2020
Terbutaline Pharmaceutical or hormone					Unknown	Green	Green	Green	SchoonenbergKegel2010
Terbutryn C10H19N5S Pesticide					Blue	Green	Unknown	Green	Mailler2016 Waterstillar2020
Terbutylalcohol (TBA) Industrial compound					Unknown	Green	Green	Green	SchoonenbergKegel2010 EWG2019
Terbuthylazine C9H16ClN5 Pesticide	7 µg/L				Blue	Unknown	Green	Green	RodriguezMozaz2015 Waterstillar2020
Tetrachloroethane Industrial compound					Unknown	Green	Green	Green	Brita2018 EWG2019
Tetrachloroethene Industrial compound	40 µg/L	5 ppb		0.06 ppb	Green	Green	Unknown	Green	Brita2018 MidwestLaboratories1996
Tetracycline Pharmaceutical or hormone					Blue	Yellow	Unknown	Green	Mailler2016 Waterstillar2020
Tetrahydrofuran (THF) Industrial compound					Unknown	Red	Unknown	Unknown	Lenntech2019
Thallium Tl Metal		2 ppb		0.1 ppb	Green	Unknown	Green	Green	Dvorak2014 MidwestLaboratories1996
Trihalomethanes (THMs) Industrial compound	1 mg/L	80 ppb	100 µg/L	0.15 ppb	Unknown	Green	Green	Green	Dvorak2014 EWG2019
Tin Sn Metal	None				Green	Unknown	Green	Green	Ruel2011 Waterstillar2020
Titanium Ti Metal					Green	Red	Green	Green	Ruel2011 Waterstillar2020
Toluene Industrial compound	700 µg/L	1 ppm		0.15 ppm	Green	Green	Green	Green	Dvorak2014 MidwestLaboratories1996 EWG2019
Total dissolved solids (TDS) Wastewater parameter			< 1000 mg/L		Green	Unknown	Green	Green	Asadi, 2013 Hoque2019 Snyder2007
Total Kjeldahl nitrogen (TKN) Wastewater parameter					Unknown	Yellow	Unknown	Yellow	Mailler2016
Total Phosphate (TP) Wastewater parameter					Unknown	Green	Unknown	Green	Mailler2016
Total suspended solids (TSS) Wastewater parameter					Green	Unknown	Unknown	Green	Asadi, 2013
Toxaphene Pesticide	None	3 ppb		0.03 ppb	Unknown	Green	Green	Green	Brita2018 EWG2019
Tribromoacetic acid Industrial compound		N/A		0.04 ppb	Unknown	Green	Green	Green	Brita2018 EWG2019
Tributylphosphate Industrial compound					Unknown	Yellow	Green	Yellow	Ruel2011
Trichlorophenol Industrial compound	200 µg/L				Unknown	Unknown	Red	Unknown	Ruel2011
Trichloroacetonitrile Industrial compound	None				Unknown	Green	Green	Green	Brita2018 Culligan2014
Trichlorobenzene Pesticide	20 µg/L	70 ppb		5 ppb	Unknown	Green	Green	Green	Dvorak2014 EWG2019
Trichloroethane Industrial compound	2 mg/L	5 ppb		0,3 ppb	Unknown	Green	Green	Green	Brita2018 EWG2019
Trichloroethylene Trichloroethene Industrial compound	20 µg/L	5 ppb	10 µg/L	0.4 ppb	Green	Green	Green	Green	Dvorak2014 Brita2018 MidwestLaboratories1996 EWG2019
Trichloropropane Industrial compound		N/A		0.0007 ppb	Unknown	Green	Green	Green	Brita2018 Culligan2014
Triclocarban Personal care product					Unknown	Green	Unknown	Green	Mailler2016
Triclopyr Pesticide					Blue	Green	Unknown	Green	Lenntech2019 Waterstillar2020
Triclosan Personal care product					Unknown	Red	Yellow	Unknown	Mailler2016 Snyder2007
Triglyme Industrial compound					Unknown	Unknown	Green	Unknown	SchoonenbergKegel2010
Trimethoprim Pharmaceutical or hormone					Unknown	Green	Green	Green	Mailler2016 RodriguezMozaz2015
Tritium Metal		N/A	100 Bq/L	400 pCI/L	Green	Unknown	Unknown	Green	Waterstillar2020
Turbidity Wastewater parameter			Acceptable, no change		Green	Unknown	Green	Green	Asadi, 2013 Culligan2014 CardosodaSilva2014 Hoque2019
Uranium U Metal	30 µg/L	30 ppb		0.43 pCI/L	Green	Unknown	Green	Green	Hanson2004 Huikuri1998
Urea Industrial compound					Blue	Red	Red	Green	Lenntech2019 Waterstillar2020
UV-254 Wastewater parameter					Unknown	Yellow	Unknown	Yellow	Mailler2016
Vanadium V Metal		N/A		21 ppb	Green	Unknown	Green	Green	Ruel2011 MidwestLaboratories1996
Vinyl acetate Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Vinyl chloride Industrial compound	0.3 µg/L	2 ppb	0.5 µg/L	0.05 ppb	Unknown	Yellow	Green	Yellow	Lenntech2019 EWG2019
Viruses Microorganism or pollutants from microorganism					Green	Red	Unknown	Green	Nasciemento2018
Volatile organic compounds (VOCs) Industrial compound					Unknown	Green	Unknown	Green	Brita2018
Xylene Industrial compound	500 µg/L	10 ppm		1.8 ppm	Green	Green	Green	Green	Brita2018 MidwestLaboratories1996 EWG2019
Xylenol Industrial compound					Unknown	Green	Unknown	Green	Lenntech2019
Zinc Zn Metal	None				Green	Green	Green	Green	Ruel2011 MidwestLaboratories1996
Trifluralin Pesticide	20 µg/L				Blue	Unknown	Unknown	Green	MidwestLaboratories1996
Pyraclostrobin C19H18ClN3O4 Pesticide					Blue	Unknown	Unknown	Green	Hoff2019
Potassium cation K+ Salt	175 mg/L				Green	Red	Green	Green	Huikuri1998 MidwestLaboratories1996
Epoxiconazole C17H13ClFN3O Pesticide					Blue	Unknown	Unknown	Green	Waterstillar2020
Aldrin Pesticide	0.03 µg/L				Blue	Green	Green	Green	Hanson2004 EWG2019
2,4,6-Trichlorophenol Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Calcium cation Ca2+ Salt					Green	Unknown	Green	Green	Huikuri1998 Velmurugan2009 MidwestLaboratories1996
Hardness Wastewater parameter	None				Green	Unknown	Unknown	Green	Hanson2004
Magnesium cation Mg2+ Salt					Green	Unknown	Green	Green	Huikuri1998 MidwestLaboratories1996
Phosphorus Salt					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Dimethylphthalate Industrial compound					Green	Green	Green	Green	MidwestLaboratories1996 EWG2019
Phenathrene Industrial compound					Green	Green	Green	Green	MidwestLaboratories1996 EWG2019
Pyrene Industrial compound					Green	Green	Green	Green	EWG2019
Bromobenzene Industrial compound					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Bromochloromethane Industrial compound					Green	Green	Green	Green	MidwestLaboratories1996 EWG2019
n-Propylbenzene Industrial compound					Green	Green	Green	Green	MidwestLaboratories1996 EWG2019
Acetachlor Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Ametryn Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Butylate Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
s-ethyl dipropylthiocarbamate (EPTC) Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Ethalfluralin Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Propachlor Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Prometon Pesticide					Green	Green	Green	Green	MidwestLaboratories1996 EWG2019
Triallate Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
4-(2,4-dichlorophenoxy)butyric acid (2,4-DB) Pesticide	90 µg/L				Green	Unknown	Unknown	Green	MidwestLaboratories1996
2,4,5-Trichlorophenoxyacetic acid (2,4,5-T) Pesticide	9 µg/L				Green	Unknown	Unknown	Green	MidwestLaboratories1996
4-(4-chloro-o-tolyloxy)butyric acid (MCPB) Pesticide	None				Green	Unknown	Unknown	Green	MidwestLaboratories1996
Picloram Pesticide		500 ppb		166 ppb	Green	Green	Green	Green	MidwestLaboratories1996 EWG2019
Chloroneb Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Chlorobenzilate Pesticide	None				Green	Unknown	Unknown	Green	MidwestLaboratories1996
Chlorothalonil Pesticide	None				Green	Unknown	Unknown	Green	MidwestLaboratories1996
Treflan Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996
Nonylphenol Industrial compound					Unknown	Yellow	Unknown	Yellow	Snyder2007
Aldicarb sulfoxide Pesticide	10 µg/L				Unknown	Green	Green	Green	EWG2019
Aldicarb sultane Pesticide	10 µg/L				Blue	Green	Green	Green	Waterstillar2020 EWG2019
Bromochloroacetic acid Disinfection compound				0.02 ppb	Unknown	Green	Green	Green	EWG2019
Bromodichloroacetic acid Disinfection compound				0.04 µg/L	Unknown	Green	Green	Green	EWG2019
Butadiene Industrial compound				0.0103 ppb	Unknown	Green	Green	Green	EWG2019
Chlorodibromoacetic acid Disinfection compound				0.02 ppb	Unknown	Green	Green	Green	EWG2019
Chromium (VI) Cr Metal	50 µg/L		50 µg/L	0.02 ppb	Green	Green	Green	Green	Ruel2011 MidwestLaboratories1996
Di(2-ethylhexyl) adipate (DEHA) Industrial compound	80 µg/L	400 ppb		200 ppb	Unknown	Green	Green	Green	EWG2019
Dibromoacetic acid (DBA) Disinfection compound				0.04 ppb	Unknown	Green	Green	Green	EWG2019
Dichloroacetic acid (DCA) Pharmaceutical or hormone				0.2 ppb	Unknown	Green	Green	Green	EWG2019
Diquat Pesticide	30 µg/L	20 ppb		6 ppb	Unknown	Green	Green	Green	EWG2019
Endothall Pesticide		100 ppb		94 ppb	Unknown	Green	Green	Green	EWG2019
Fluoride F- Salt	1.5 mg/L		1.5 mg/L		Green	Red	Green	Green	Hanson2004 Huikuri1998 MidwestLaboratories1996
Hydroxyatrazine C8H14ClN5 Pesticide	200 µg/L				Blue	Unknown	Unknown	Green	Waterstillar2020
Monobromoacetic acid (MBA) Disinfection compound		60 ppb		0.1 ppb	Unknown	Green	Green	Green	EWG2019
Monochloracetic acid (MCA) Disinfection compound		60 ppb		0.1 ppb	Unknown	Green	Green	Green	EWG2019
Oxamyl Pesticide	None	200 ppb		26 ppb	Unknown	Green	Green	Green	EWG2019
Perchlorate Industrial compound	70 µg/L			1 ppb	Blue	Unknown	Green	Green	Waterstillar2020 EWG2019
Perfluorobutane sulfonate (PFBS) Industrial compound				0.001 ppb	Unknown	Green	Green	Green	EWG2019
Perfluoroheptanoic acid (PFHPA) Industrial compound				0.001 ppb	Unknown	Green	Green	Green	EWG2019
Perfluorohexane sulfonate (PFHXS) Industrial compound				0.001 ppb	Unknown	Green	Green	Green	EWG2019
Perfluorononanoic acid (PFNA) Industrial compound				0.001 ppb	Unknown	Green	Green	Green	EWG2019
Polychlorinated biphenyls (PCBs) Industrial compound		0.5 ppb		0.09 ppb	Unknown	Green	Green	Green	EWG2019
Radium Metal		5 pCi/L		0.05 pCi/L	Blue	Unknown	Green	Green	Waterstillar2020 EWG2019
Strontium-90 Metal				0.35 pCi/L	Blue	Unknown	Green	Green	Waterstillar2020 EWG2019
Trichloroacetic acid (TCA) Disinfection compound		60 ppb		0.1 ppb	Unknown	Green	Green	Green	EWG2019
Chlorotoluene Pesticide					Green	Unknown	Unknown	Green	MidwestLaboratories1996