ABSTRACT
The occurrence of objectionable tastes and odors in potable water is widespread. The most troublesome odors that occur usually are those described as muddy, earthy, or musty. Metabolites from microorganisms that contaminate drinking water systems are usually the cause of such tastes and odors. The malodorous metabolites have long been attributed to geosmin (trans-1,10-dimethyl-trans-9-decalol) and 2-methylisoborneol (2-MIB). Another musty compound that has been reported in the literature is 2-isopropyl-3-methoxy pyrazine (IPMP) [1].
