Table 1: Microbial and physico-chemical characteristics of water from tap water and River Kandurura in Nakuru North District between January and December 2013.

Sampling Sites Temp
(oC)
Turb
(NTU)
pH BOD DO TDS Cl- Fl-mg/ litre E. coli Shigella Salmonella
(mg O2/l) (mg O2/l) (mg/l) n/100mL (x104 ) n/100mL (x103 ) n/ (%)
S1 18.0 5.6 8.6 4.4 8.4 0.1 55 0.7 2(95) 1.2(100) 8(26.7)
S2 18.0 5.2 8.4 4.6 8.2 0.1 50 0.7 6(100) 1.3(100) 14(46.7)
S3 18.6 5.3 8.4 4.2 6.4 0.1 25 0.4 5(100) 1.4(100) 21(70)
S4 18.2 7.6 8.1 4.8 8.0 0.1 30 0.3 5(100) 1.3(100) 16(53.3)
S5 18.1 7.7 8.9 4.2 8.8 0.2 40 0.3 1(81) 1.1(100) 7(23.3)
S6 18.4 8.1 8.1 4.0 8.8 0.1 30 0.4 2(83) 1.0(100) 5(16.7)
S7 18.1 5.3 8.4 4.2 8.2 0.2 55 0.3 6 (100) 1.4 (100) 14 (48.1)
S8 18.2 7.6 8.1 4.8 8.4 0.1 35 0.4 5 (100) 1.2 (100) 21 (73)
S9 18.2 7.7 8.6 4.2 7.3 0.1 30 0.4 2 (90) 1.3 (100) 18 (45)
S10 18.6 8.1 8.4 4.8 8.5 0.1 50 0.3 5 (95) 1.3 (100) 15 (26.3)
Average 18.24 6.82 8.4 4.42 8.1 0.12 40 0.42 3.9(94.4) 1.25 (100) 13.9(42.91)
r=values 0.1412* 0.1357* 0.0758* 0.1916** 0.1343** 0.2356** 0.173* 0.2356* p>0.05
WHO stds 6 6.5  >5 8 500 200 0.5–1.0. Zero Zero Zero
Upstream 17.6b 4.5c 7.94e 3 7.94 0.1 37 0.5 1(30) 0.9 16 (10)
Midstream 17.7b 5.6c 7.7e 2.7 7.9 0.1 36 0.58 5(70) 1.3 17(28.3)
Downstream 18.3b 7.2c 8.1e 2.6 7.8 0.1 32 0.4 8(100) 1.5 37(61.7)
r=values 0.4684* 0.783* 0.3580* 0.2064** 0.101** 0.0108** 0.123* 0.307* p=0.002 p=0.001 p=0.001