G N CHACK ( DAHAN ) - Saidpur Block, Gazipur District September 9, 2006
	No.	Depth (ft)	As (ppb)
	1		0
	2		70
	3	100	0
	4	30	30
	5	30	30
	6	60	0
	7	40-50	0
	8	30	0
	9	30	0
	10	30-35	0
	11	30	0
	12	50	0
	13	30	0
	14	60	0
	15	40	0
	16	40	0
	17	35	0
	18	40	0
	19	40	0
	20	35	0
	21	35	0