Drinking Water Testing

Drinking water contains a lot of chemicals, some of which are needed by the human body. If the drinking water is polluted, it will pose a threat to human health. Most of the substances in the water are not visible to us, and we can't even taste them. These substances include microorganisms like viruses and bacteria, and other substances such as salt, heavy metals, pesticide residues, and even radioactive pollutants. Therefore, we need to pay attention to the safety of drinking water.

STEMart can provide you with the most faithful drinking water testing according to your requirements through advanced analytical equipment and mature analytical technology.

Test Capabilities

Disinfection by-products analysis

• Detection objectives include: Bromate, dichloroacetic acid, bromodichloromethane, dichloroacetonitrile, chlorate, NDMA, trichloroacetic acid, chlorite, chloroform, chloroacetic acid, Bromodichloromethane (BDCM) – CHCl₂Br, Dibromochloromethane (DBCM) – CHClBr₂, cyanogen chloride, dibromoacetonitrile, dibromochloromethane, Bromoform – CHBr₃

Pesticide residue analysis

• Detection objectives include:
  • General herbicide: Alachlor, Atrazine, Benefin, Bromacil, Butachlor, Butylate, Cycloate, Eptam (EPTC), Ethalfluralin, Hexazinone, Isopropalin, Metolachlor, Metribuzin, Molinate, Norflurazon, Oxadiazon, Oxyfluorfen, Pebulate, Pendimehtalin, Prodiamine, Profluralin, Prometon, Propachlor, Propazine, Simazine, Terbacil, Trifluralin, Vernolate
  • Phenoxy herbicide: 2,4,5 – TP, 2,4,5-T, 2,4-D, 2,4-DB, Dicamba, Dichlorprop, Dinoseb, MCPA, MCPP, Picloram, Trichlopyr
  • Chlorinated pesticide: 4,4-DDD, 4,4-DDE, 4,4-DDT, Aldrin, Alpha-BHC, Alpha-Chlordane, Beta-BHC, Delta-BHC, Dieldrin, Endosulfan I, Endosulfan II, Endosulfan Sulphate, Endrin, Endrin Aldehyde, Endrin Ketone, Gamma-BHC, Gamma-Chlordane, Heptachlor, Heptachlor Epoxide, Methoxychlor, PBCs, Toxaphene
  • Organo phosphate: Carbophenothion, Diazinon, Chlorpyrifos, Ethion, Malathion, Methyl Parathion, Parathion, Tetrachlorvinphos
  • Pyrethroid insecticide: Cyfluthrin, Esfenvalerate, Resmethrin, Tetramethrin, Deltamethrin, Cyphenothrin, Permethrin, Bifenthrin, Lambda Cyhalothrin, Cypermethrin

General chemicals analysis

• Detection objectives include: Asbestos, nitrate/nitrite, turbidity, cyanide, fluoride

Heavy metal analysis

• Detection objectives include: Pb, B, Cr, Hg, As, Cd, Cu, Sb, Ni, Se, Al, Mn, Fe, Na, etc.

Perfluoroalkyl and polyfluoroalkyl substances analysis

• Detection objectives include: PBA (Perfluorobutanoic acid), PFPeA (Perfluoropentanoic acid), PFHxA (Perfluorohexanoic acid), PFDA (Perfluorodecanoic acid), PFUnA (Perfluoroundecanoic acid), PFDoA (Perfluorododecanoic acid), PFTrDA (Perfluorotridecanoic acid), PFTeDA (Perfluorotetradecanoic acid), PFTeDA (Perfluorotetradecanoic acid), PFBS (Perfluorobutanesulfonate), PFHpS (Perfluoroheptanesulfonate), PFDS (Perfluorodecanesulfonate), PFOSA (Perfluorooctanesulfonamide), PFOA (Perfluorooctanoic acid), PFOS (Perfluorooctane sulfonic acid), PFHxS (Perfluorohexane sulfonic acid), PFHpA (Perfluoroheptanoic acid), PFNA (Perfluorononanoic acid)., etc.

Dioxins analysis

Microbial contamination analysis

• Detection objectives include: Total coliform, Heat-resistant coliform, Escherichia coli, Pathogenic bacteria, Total number of colonies, etc.

Chemical oxygen demand (COD) analysis

Vapor intrusion assessment

Biochemical oxygen demand (BOD, CBOD) analysis

Benzene/formaldehyde monitoring

Volatile organic compounds (VOC) analysis

• Detection objectives include: Cyclohexanone, phenol, isophorone, acetone, methanol, ethyl acetate, ethanol, benzene, toluene, N-butanol, styrene, methyl isobutyl ketone, acetophenone, nitrobenzene, etc.
• Detection methods include: Headspace gas chromatography, liquid-liquid extraction gas chromatography, Gas chromatography mass spectrometer

Semi-volatile organic compounds analysis

• Detection objectives include: Nitrobenzene, nitrochlorobenzene, internitrochlorobenzene, dinitrobenzene, P-dinitrobenzene, O-dinitrobenzene, 2, 4- two nitrotoluene, 2, 4- two nitrochlorobenzene, 4,4'-DDT, 2,4-dinitrophenol, aniline, diethyl phthalate, hexachloroethane, azobenzene, 2,4-dichlorophenol, di-n-butylphthalate, 1,2,4-trichlorobenzene, nitroaniline, diethyl sulfate, 4,4'-DDD, 4,4'-DDE

Total organic carbon (TOC), oil & grease, total phenols analysis

Dissolved oxygen, total & reactive phosphorus, chromium VI analysis

Radiological testing

For more information about our drinking water testing services, please contact us.