Parameters | Before filtration | After filtration | WHO standards |
Total coliforms | 5260/100 ml | 50/100 ml | 0/100 ml |
E. coli | 360/100 ml | 0/100 ml | 0/100 ml |
Fecal streptococci | 2720/100 ml | 0/100 ml | 0/100 ml |