Survey data from Ballia District, Uttar Pradesh, India January 8 & 9, 2006
	Block	Village	Depth (ft)	As conc. (Hironaka) ppm	Total As	As(V)	As(III)	% As(V)	% As(III)
	Dubhad	Udai Pura	100	0.2
	Dubhad	Muhammadpur	50	0
	Dubhad	Saurabandh Bazar	110	0.15
	Dubhad	Saurabandh	50	0.2	0.113	0.113	0	100	0
	Dubhad	Saurabandh Bazar	70	0
	Dubhad	Saurabandh Bazar		0.2
	Dubhad	Agarauli	90		0.009	0.008	0.001	89	11
	Dubhad	Agarauli	90		0.006	0.005	0.001	83	17
	Dubhad	Agarauli	45		0.005	0.001	0.004	20	80
	Dubhad	Agarauli Dopahi	80		0.007	0.006	0.001	86	14
	Dubhad	Ojhawalia	65	0	0.001	0.001	0	100	0
	Dubhad	Repura	160	0.01	0.016	0.009	0.007	56	44
	Dubhad	Repura	100	0.05	0.032	0.024	0.008	75	25
	Dubhad	Repura	155		0.014	0.014	0	100	0
	Belhari	Hariharpur	150	0.2	0.281	0.281	0	100	0
	Belhari	Hariharpur	100	0.3-0.4	0.435	0.018	0.417	4	96
	Belhari	Hariharpur	130	0.3-0.4	0.376	0.02	0.356	5	95
	Belhari	Hariharpur	110	0.1	0.083	0.083	0	100	0
	Belhari	Hariharpur	130	below 0.1	0.075	0.037	0.038	49	51
	Belhari	Hariharpur	100	0.3	0.22	0.018	0.202	8	92
	Belhari	Hariharpur	100	0.2	0.16	0.017	0.143	11	89
	Belhari	Hariharpur	70	0.15	0.085	0.011	0.074	13	87
	Belhari	Hariharpur	100		0.104	0.065	0.039	63	37
	Dubhad	Saurabandh	110		0.128	0.101	0.027	79	21
	Dubhad	Saurabandh	100		0.079	0.019	0.06	24	76
	Dubhad	Saurabandh	100		0.092	0.02	0.072	22	78
	Dubhad	Saurabandh	80		0.031	0.003	0.028	10	90
	Hanumanganj	Maldeypur	100	0