. 2021 Nov 10;8(1):3. doi: 10.1007/s40899-021-00592-y

Table 6.

Average Escherichia coli, Enterococcus, and Total Coliform quantification in wells and stream during the dry season (dry) and rainy season (rainy)

Sampling sites	E. coli (CFU ± SD × 10² 100 mL⁻¹)		ENT (CFU ± SD × 10² 100 mL⁻¹)		TC (CFU ± SD × 10³ 100 mL⁻¹)
Sampling sites	Dry	Rainy	Dry	Rainy	Dry	Rainy
Managed wells
FS1	0	0	0	0	0	0
FS2	0.32 ± 0.03	0.90 ± 0.35	0.48 ± 0.09	0.89 ± 0.12	0.19 ± 0.04	0.38 ± 0.11
FK1	0	0	0	0	0	0
FK2	0	0.03 ± 0.00	0	0.05 ± 0.00	0	0.09 ± 0.02
FK3	0	0	0	0	0	0
Unmanaged wells
PS1	2.21 ± 0.18	20.01 ± 1.12	9.08 ± 1.31	28.01 ± 2.21	11.04 ± 1.04	35.30 ± 3.51
PS2	0.03 ± 0.02	0.21 ± 0.06	0.11 ± 0.09	0.98 ± 0.15	0.09 ± 0.01	0.64 ± 0.05
PS3	0.41 ± 0.07	0.81 ± 0.15	0.12 ± 0.03	1.12 ± 0.06	0.17 ± 0.02	0.31 ± 0.05
PS4	11.21 ± 0.05	19.31 ± 1.22	22.10 ± 0.51	16.11 ± 1.22	35.12 ± 3.97	79.12 ± 3.77
PS5	0.09 ± 0.01	0.03 ± 0.00	0.12 ± 0.08	0.19 ± 0.03	0.17 ± 0.06	0.29 ± 0.07
PS6	7.03 ± 0.39	29.07 ± 8.25	8.31 ± 2.51	10.52 ± 1.75	2.83 ± 0.32	14.32 ± 2.13
PS7	3.11 ± 0.12	24.06 ± 3.18	6.03 ± 1.15	28.13 ± 2.59	7.06 ± 1.48	13.42 ± 6.04
PK1	2.43 ± 0.35	12.08 ± 0.77	3.13 ± 0.77	15.18 ± 7.16	2.03 ± 0.04	17.22 ± 6.12
PK2	7.33 ± 1.11	29.36 ± 2.14	6.99 ± 2.01	16.10 ± 2.44	38.04 ± 2.17	79.03 ± 8.33
PK3	2.63 ± 0.44	29.36 ± 2.14	1.98 ± 0.22	32.08 ± 1.11	3.20 ± 0.18	19.03 ± 3.33
PK4	3.55 ± 0.99	22.44 ± 3.11	3.96 ± 1.02	43.10 ± 2.22	7.18 ± 0.92	14.99 ± 4.15
PK5	1.42 ± 0.13	45.12 ± 3.22	1.12 ± 0.25	56.29 ± 4.13	1.32 ± 0.81	24.44 ± 3.11
Streams
SK1	0	0.03 ± 0.00	0	0.08 ± 0.01	0	0.07 ± 0.02
SK2	2.55 ± 0.33	4.37 ± 1.08	2.69 ± 0.47	8.15 ± 1.09	9.06 ± 1.75	10.03 ± 3.37
SK3	0.06 ± 0.01	0.90 ± 0.13	0.04 ± 0.00	0.78 ± 0.17	0.08 ± 0.01	0.24 ± 0.01
SK4	4.32 ± 0.76	6.50 ± 0.92	3.35 ± 0.18	9.88 ± 1.03	1.13 ± 0.04	7.11 ± 2.13
EU/WHO^a	0		0		0

E. coli: Escherichia coli; ENT: Enterococcus; TC Total Coliform; ± SD: standard deviation

^aEU and World Health Organization Guidelines for Drinking-water Quality 0 CFU 100 mL⁻¹, for E. coli, ENT and TC (EU 2020; WHO 2020)