Research Article

Microbiological Quality and Contamination Level of Water Sources in Isiolo County in Kenya

Table 4

Mean Escherichia coli, Clostridium pafringens, and Staphylococcus aureus counts in surface water sources.

Sample Escherichia coli (Cfu/ml)SampleClostridium pafringens (Cfu/ml)SampleStaphylococcus aureus (Cfu/ml)

R1C12.0±1.7aSPR1C22.0±2.3aR4B11.0±1.4a
PAN2B12.5±2.9aR3C38.0±1.5aPAN2A15.0±1.6a
SPR3A12.5±1.8aR1A125.0±3.7aSPR1D22.5±2.3a
SPR1D13.0±1.6aSPR1D242.0±5.8aSPR3A25±3.4a
SPR1B15.0±1.2aR4B338.0±10.1aR4A50.0±4.2a
R3C35.0±1.3aRAIN21500.0±15.5aSPR1B95.0±2.5a
SPR1A40.0±2.5abR1C1565.0±40.9aTROUGH2864.5±3.7b
SPR3B55.0±1.4bcR3A1850.0±28.2aTROUGH41550.0±10.8c
SPR1C80.0±1.8cPAN2A3500.0±56.9aSPR3B1725±13.9c
R3A145.0±5.3dTROUGH27026.0±282.4bRAIN22450.0±23.7d
RAIN2160.0±12.5dSPR1B7300.0±457.8bSPR1A3500.0±45.9e
R4A165.0±11.3dSPR1A41500.0±483.7cR3A3750±70.8e

Mean 39.2Mean3421Mean740
cv 23.3cv 46.1cv 26.5

(1) Values are means of two determinations ± standard deviations
(2) Values with the same letters on the same column are not significantly different at 5 % level of significance.