Dharmarpur (Karanda Block, Gazipur District) September 12, 2006
	No.	Depth (ft)	pH	As (ppb)
	1	105	7.71	0
	2	95	7.5	0
	3	100	7.66	0
	4	90	7.73	0
	5	100	7.75	0
	6	110	7.87	0
	Balwantpur (Karanda Block, Gazipur District) September 12, 2006
	No.	Depth (ft)	pH	As (ppb)
	1	110	7.95	200
	2	112	7.93	400
	3	110	7.94	400
	4	105	7.77	0
	5	100	7.74	0
	6	110	7.95	0
	Kutiyan (Karanda Block, Gazipur District) September 12, 2006
	No.	Depth (ft)	pH	As (ppb)
	1	80	8.02	0
	2	100	7.95	0
	3	120	7.66	0
	4	100	7.84	0
	5	120	7.83	0
	6	115	7.9	0