Table 4.

Spearman Correlation of lead concentration with other physical properties

Lead concentration		Conductivity (µS/cm)	TDS (mg/L)	pH	Temperature (°C)
in first-flushed water (µg/L)	Correlation Coefficient	0.129	0.131	-0.116	0.167
	Sig. (2-tailed)	0.200	0.195	0.252	0.097
	n	100	100	100	100
fully-flushed water (µg/L)	Correlation Coefficient	0.175	0.179	0.031	0.117
	Sig. (2-tailed)	0.081	0.074	0.758	0.247
	n	100	100	100	100