Geochemical
Analytical
Organic (ash) content [ASTM D2974]
Salt content (salinity) [ASTM D4542]
pH of water [ASTM D4972]
Calcium Carbonate contents [ASTM D4373]
Chloride of water [AASHTO T291]
Chloride of soil [AASHTO T291]
Electrical resistivity (laboratory) [ASTM G57]
Sulfate of water [AASHTO T290]
Sulfate of soil [AASHTO T290]
Oxidation-reduction potential [ASTM G200]