TY - CONF T1 - Ogalala Lakota water project:bone char filter to remove arsenic and uranium from private well water. Y1 - 011.// N1 - SU835069 ER - TY - CONF T1 - Ogalala Lakota water project:bone char filter to remove arsenic and uranium from private well water. Y1 - 011.// N1 - SU835069 ER - TY - CONF T1 - Llewellyn B, Blake M, Marcinkevicius A, Benson N. Y1 - 013.// N1 - SU835069 ER - TY - CONF T1 - Presented at the P3 National Student Design Expo, Washington DC, April 2012. N1 - SU835069 ER -