Parameters | Artesian wells | Boreholes | Drilling | Rainwater | Surface water | Standards WHO |
E. coli | 2000/100 ml | 2280/100 ml | 2800/100 ml | 220/100 ml | 7320/100 ml | 0/100 ml |
Fecal coliforms | 2190/100 ml | 3300/100 ml | 4120/100 ml | 470/100 ml | 11780/100 ml | 0/100 ml |
Total coliforms | 14904/100 ml | 4375/100 ml | 10650/100 ml | 1950/100 ml | 44600/100 ml | 0/100 ml |
Fecal streptococci | 33900/100 ml | 32025/100 ml | 625/100 ml | 275/100 ml | 875/100 ml | 0/100 ml |