Table 3.

Statistical analysis for the samples with high- (dam water) and low (borehole water) bacterial loads.

Method		Paired T-test P-value	Mann-Whitney U P-value
Spiked water samples	DNA concentration %	0.3049**	0.2572**
Un-spiked water samples	DNA concentration %	0.0121*	0.0495*
Spiked water samples	Cq	0.0359*	0.0495*
Un-spiked water samples	Cq	0.3727**	0.5127**

NB: P ≥ 0.05 non-statistically different**; P ≤ 0.05 statistically different*