Parameters | Artesian wells | Boreholes | Drilling | Surface water | Standards WHO |
E. coli | 2/100 ml | 95/100 ml | 80/100 ml | 860/100 ml | 0/100 ml |
Fecal coliforms | 7/100 ml | 110/100 ml | 320/100 ml | 1530/100 ml | 0/100 ml |
Total coliforms | 2327/100 ml | 1700/100 ml | 9825/100 ml | 11700/100 ml | 0/100 ml |
Fecal streptococci | 1/100 ml | 151/100 ml | 401/100 ml | 600/100 ml | 0/100 ml |