Not seen in faecal pollution -
The primary bacterial indicators of contamination of water are the coliform group. Supplementary indicators include faecal streptococci and sulphite-reducing clostridia(C.perfringens) Park's Textbook of Preventive and Social Medicine, 25th edition, Page No. 780,781
Staphylococcus
Streptococcus
E. Coli
Clostridium perfringens
Environment and health