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Table 2

Microorganisms monitored at the GRP

MicroorganismLRVMicroorganismLRV
Heterotrophic plate count (HPC) 6.02 Pseudomonas 2.86 
Total coliforms 5.26 Clostridium spores 4.94 
Faecal coliforms 4.32 Clostridium viable 5.40 
E. coli Tryptone(a) 2.01 Somatic coliphages 4.68 
Faecal streptococci 3.67   
MicroorganismLRVMicroorganismLRV
Heterotrophic plate count (HPC) 6.02 Pseudomonas 2.86 
Total coliforms 5.26 Clostridium spores 4.94 
Faecal coliforms 4.32 Clostridium viable 5.40 
E. coli Tryptone(a) 2.01 Somatic coliphages 4.68 
Faecal streptococci 3.67   

(a) E. coli is only measured in feedwater and sandfilter effluent.

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