Table 2 Mean bacterial population of water samples in Siwa Oasis with ANOVA test. ANOVA means in the same column followed by the same letter are not significantly different (P < 0.05). NA not available. W: (Wells, 1–17), D (Drains, 1–3). *FAO²⁸, **EC²⁷.

Sample no	Total coliform	Fecal coliform	Fecal streptococci	Total bacteria count at 37 °C	Total bacteria count at 22 °C	Total diazotrophs
Sample no	MPN / 100 ml	MPN / 100 ml	MPN / 100 ml	cfu / ml ×10²	cfu / ml ×10²	cfu / ml ×10²
Drainage water
D1	240^ef	93^c	1200^e	25.6^gh	0.6^d	8.5 ^hi
D2	12^f	4 ^hi	1100^f	40.0^fg	3.4^d	0.5ⁱ
D3	23 ^f	12^gh	1200 ^e	25.6^gh	26.6^cd	28.3^efgh
Groundwater
W01	190 ^f	43^e	2900^a	56.8^ef	83.2 ^cd	40.5 ^de
W02	0.0	0.0	1200 ^e	7.6 ^h	11.6 ^d	6.5 ^hi
W03	600^d	15^g	1200 ^e	39.6^fg	60.8 ^cd	11.0^ghi
W04	94 ^f	9^gh	1100 ^f	6.0 ^h	6.6 ^d	6.0 ^hi
W05	460 ^de	240^a	1100 ^f	26.6^gh	30.0 ^cd	32.5 ^efg
W06	1100 ^c	75^d	1200 ^e	30.0^gh	32.0 ^cd	42.5 ^de
W07	23 ^f	6^ghi	1100 ^f	6.6 ^h	5.8 ^d	1.0ⁱ
W08	43 ^f	34^f	240^g	10.6 ^h	9.0 ^d	21.5^efghi
W09	15 ^f	0.0	1200 ^e	12.0 ^h	19.8 ^cd	35.5^def
W10	1200^c	12^gh	53^h	170.0^c	122.0^bc	275.0^c
W11	15 ^f	7^ghi	1600^c	22.4^gh	19.4 ^cd	15.5^fghi
W12	2400^a	29^f	1500^d	77.6 ^de	284.0^a	13.5^fghi
W13	36 ^f	4 ^hi	2900 ^a	226.0^b	260.0 ^a	400.0^b
W14	14 ^f	9^gh	1200 ^e	8.9 ^h	12.8 ^d	43.5 ^de
W15	23 ^f	0.0	1200 ^e	25.4^gh	12.8 ^d	16.5^fghi
W16	1800^b	150^b	2400^b	560.0^a	214.4 ^ab	775.0^a
W17	460^de	7^ghi	1500 ^d	90.8^d	96.0 ^cd	58.0^d
LSD at 0.05	211	7.28	68.75	20.92	85.73	18.93
Drinking water Standard	(2 MPN/100ml)^*	NA	NA	(100 cfu/ml)^**	(10 cfu/ml) ^**	NA

Quick links

Search