bacteriological drinking water examination of samples from water works and wells as well as from their distribution systems revealed that from 26 samples , where salmonella organisms could be isolated , in 16 cases e. coli- and coliforms could not be found and that in 9 of these cases even the colony count was below 100 colonies per ml at 20 degrees c and 37 degrees c incubation temperature .
C0599638
drinking water
C0043047
water