Table 1.

Occurrence of mycobacteria

Sample source (no. of samples analyzed) No. (%) of samples with mycobacteria detected
Bottled water (11)0
Drinking water, grounda(16)5 (31)
Drinking water, surfaceb(89)32 (36)
Cistern (6)0
Ice
 Commercially bagged (5)0
 Hospital ice machines (6)6 (100)
Drinking water treatment
 Reservoir (1)0
 Membrane filter effluent (1)1 (100)
 Ice machine treatment cartridgesc (4)2 (50)
Total (139)46 (33)
  • a Drinking water samples from utilities that use groundwater as source water.

  • b Drinking water samples from utilities that use surface water as source water.

  • c Water samples from ice machine treatment cartridges.