Vale da Pedra Laboratory includes the same fields as Inorganic Chemistry, Organic Chemistry, Microbiology and Biology. Parameters are tested based on the following analytical techniques:

• Classic cultural microbiology methods: no. of 37º C and 22º C clusters, Coliform bacteria, E. coli, Faecal coliform, Enterococos, Clostridium perfringens, Pseudomonas aeruginosa, Sulphite-reducing anaerobes, Coagulase-positive staphylococci, Coagulase-negative staphylococci, and Total staphylococci
• Identifying and quantifying the phytoplankton and determining the phytoplanktonic biovolume by means of an inverted microscope
• Determining the Smell and Flavour of water samples through successive dilutions
• Determining the Colour, Free chlorine, Chlorophyll-a and phaeopigments, Aluminium, Nitrites, Phosphate, Ammoniacal Nitrogen, and Silica through molecular absorption spectrophotometry
• Determining Sodium, Potassium, Calcium, Magnesium, Fluorides, Chlorides, Nitrates, Sulphates, Bromides, Chlorate, and Chlorites using ion chromatography
• Determining THM and other alkyl halides using gas chromatographic analysis
• Carrying out several determinations by means of classic chemistry analytical techniques like acid-base titration, oxidation-reduction titration, complexometry, and gravimetric methods, among others