Water Quality Testing

Types of Samples

  • Potable water
  • Trade effluent
  • Ground water
  • Swimming pool water
  • Cooling tower water
  • Deionized/DI water
  • Domestic water
Physical Tests

Test Indicators

  • pH
  • Appearance
  • Taste
  • Color
  • Odor
  • Total Solids (TS)
  • Total Dissolved Solids (TDS)
  • Total Suspended Solids (TSS)
  • Conductivity
  • Salinity
  • Acidity
  • Alkalinity
  • Hardness
  • Turbidity
  • Temperature


Test Methods

  • American Public Health Association (APHA) Standard Methods for the Examination of Water and Wastewater
  • Hach methods
Metals/Heavy Metals Tests

Constituents Tested

  • Chromium (Cr)
  • Cadmium (Cd)
  • Iron (Fe)
  • Calcium (Ca)
  • Potassium (K)
  • Mercury (Hg)
  • Manganese (Mn)
  • Copper (Cu)
  • Sodium (Na)
  • Magnesium (Mg)
  • Aluminum (AI)
  • Arsenic (As)
  • Silver (Ag)
  • Lead (Pb)
  • Zinc (Zn)
  • Barium (Ba)
  • Selenium (Se)
  • Beryllium (Be)
  • Nickel (Ni)
  • Tin (Sn)
  • Gold (Au)
  • Molybdenum (Mo)
  • Cobalt (Co)
  • Phosphorous (P)
  • Thallium (Tl)
  • Antimony (Sb)
  • Vanadium (V)
  • Titanium (Ti)


Test Methods

  • American Public Health Association (APHA) Standard Methods for the Examination of Water and Wastewater
  • Flow Injection Mercury System (FIMS)
  • Inductively Coupled Plasma – Optical Emission Spectrometry (ICP-OES)
Inorganic, Non-Metallic Constituents Tests

Constituents Tested

  • Fluoride
  • Chloride
  • Free Chlorine
  • Total Residual Chlorine
  • Cyanide
  • Cyanuric Acid
  • Phosphate
  • Nitrate
  • Nitrite
  • Sulfate
  • Bromide
  • Bromate
  • Silica
  • Sulfide
  • Orthophosphate
  • Dissolved Oxygen
  • Ammonia
  • Total Carbon (TC)
  • Inorganic Carbon (IC)
  • Total Nitrogen (TN)
  • Total Phosphate (TP)


Test Methods

  • American Public Health Association (APHA) Standard Methods for the Examination of Water and Wastewater
  • Hach methods
  • Ion Chromatography
  • Flow Injection Analysis System (FIAS)
  • Japanese Industrial Standards (JIS) procedures
  • Total Organic Carbon (TOC) Analysis
  • Ultra-Violet/Visible (UV/VIS) Spectrophotometry
Organic Constituents Tests

Constituents Tested

  • Detergent
  • Phenolic compounds
  • Chemical Oxygen Demand (COD)
  • Biochemical Oxygen Demand (BOD)
  • Grease and oil
  • Total Organic Carbon (TOC)
  • Dissolved Organic Carbon (DOC)


Test Methods

  • American Public Health Association (APHA) Standard Methods for the Examination of Water and Wastewater
  • Hach methods
  • Total Organic Carbon (TOC) Analysis
Volatile/Semi-volatile Organic Compound Tests

Constituents Tested

  • Volatile Organic Compounds (VOC)/Semi-volatile Organic Compounds (SVOC)
  • Trihalomethanes (THM)
  • Pesticides
  • Phthalates
  • Benzene, Toluene, Ethylbenzene, Xylene (BTEX)
  • Total Petroleum Hydrocarbons (TPH)
  • Polycyclic Aromatic Hydrocarbons (PAH)

Test Methods

  • American Public Health Association (APHA) Standard Methods for the Examination of Water and Wastewater
  • United States Environmental Protection Agency (US EPA) procedures
  • Gas Chromatography–Mass Spectrometry (GCMS)
Microbial Examination

Bacteria Tests

  • Total Plate Count
  • Total Coliform Count
  • Fecal coliform
  • E. coli
  • Enterococcus
  • Legionella spp.

Test Methods

  • American Public Health Association (APHA) Standard Methods for the Examination of Water and Wastewater
  • International Organization for Standardization (ISO) procedures
  • Australian Standard (AS) procedures