Surface Water Testing

Surface water include rivers, glaciers, lakes and marshes that exist on the surface of the earth's crust and are exposed to the atmosphere. As a source human domestic water, industrial water and agricultural irrigation water, the quality of surface water is directly related to the level of human life. Surface water is very sensitive to the impact of pollutants, including agricultural chemicals, pesticides, fertilizers and industrial, commercial sewage.

STEMart can carry out professional surface water testing to provide accurate testing results in the shortest time possible.

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

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